JP6364889B2 - Display control program, display control apparatus, and display control method - Google Patents

Description

  The present invention relates to a display control program, a display control device, and a display control method.

  Next-generation classes using tablet devices are being implemented. In such next-generation classes, for example, in addition to drill materials that aim to develop memory and concentration, digital materials such as support materials that support collaborative education in which teachers and students and students learn from each other are used. is there.

  For example, in the above-mentioned collaborative education, the assignment is transmitted from the teacher terminal to the student terminal, the opinion on the assignment is returned from the student terminal to the teacher terminal, the opinions are compiled at the teacher terminal, and the matrix is displayed on a screen such as an electronic blackboard. A class will be held in which a list is displayed in a form for discussion. Under such a list display, various descriptions may be made by handwritten input with respect to the opinions of the students. For example, a comment such as a character string for an opinion is written, a mark such as a circle or underline is drawn to draw attention to a part of the opinion displayed on the screen, or to indicate an explanation part There is.

JP 2003-131882 A JP 2000-115527 A

  However, in the above technology, as described below, a part of the description input by handwriting in the list display may be lost in the enlarged display.

  For example, in the above-mentioned collaborative education, there is a case where a specific student's opinion is close-up among the opinions of each student for explanation or discussion. In this case, the opinion of a specific student among the opinions of the students included in the list display is enlarged. However, when the opinion of a specific student is displayed in an enlarged manner, the description that is written out by hand out of the area where the opinion of the specific student is displayed out of the description that is input by handwriting when the list is displayed is enlarged in a state in which the description is interrupted. It will be displayed. As a result, a part of the description input by handwriting in the list display is lost in the enlarged display.

  In one aspect, an object of the present invention is to provide a display control program, a display control apparatus, and a display control method capable of suppressing a part of a description input by handwriting in a list display from being lost in an enlarged display.

  The display control program according to one aspect stores a history of handwriting input performed on a display screen, accepts designation for a part of the display area of the display screen, and is a handwriting input included in the history, When a series of handwritten inputs continuously input are partially included in the partial display area, the part of the series of handwritten inputs is matched with display data belonging to the partial display area. The computer is caused to execute a process of controlling to display a portion not included in the display area.

  It is possible to suppress a part of the description input by handwriting in the list display from being lost in the enlarged display.

FIG. 1 is a diagram illustrating a configuration of a lesson support system according to the first embodiment. FIG. 2 is a block diagram illustrating a functional configuration of the teacher terminal according to the first embodiment. FIG. 3 is a diagram illustrating an example of student data. FIG. 4 is a diagram illustrating an example of task data. FIG. 5 is a diagram illustrating an example of answer data. FIG. 6 is a diagram illustrating an example of handwritten input data. FIG. 7 is a diagram illustrating an example of group setting data. FIG. 8 is a diagram illustrating an example of an assignment selection screen. FIG. 9 is a diagram illustrating an example of an answer screen. FIG. 10 is a diagram illustrating an example of an opinion board. FIG. 11 is a diagram illustrating an example of an opinion board. FIG. 12 is a diagram illustrating an example of the individual opinion screen. FIG. 13 is a diagram illustrating an example of the individual opinion screen. FIG. 14 is a flowchart illustrating the procedure of the class support process according to the first embodiment. FIG. 15 is a flowchart illustrating the procedure of the grouping process according to the first embodiment. FIG. 16 is a flowchart illustrating the procedure of the display control process according to the first embodiment. FIG. 17 is a schematic diagram illustrating an example of a computer that executes a display control program according to the first and second embodiments.

  Hereinafter, a display control program, a display control device, and a display control method according to the present application will be described with reference to the accompanying drawings. Note that this embodiment does not limit the disclosed technology. Each embodiment can be appropriately combined within a range in which processing contents are not contradictory.

[System configuration]
FIG. 1 is a diagram illustrating a configuration of a lesson support system according to the first embodiment. A class support system 1 shown in FIG. 1 provides a class support service that supports classes through digital teaching materials.

  For example, as part of the class support service described above, the class support system 1 publishes on the electronic blackboard 20 an opinion board displaying a list of students' opinions regarding a certain task, and the teacher, students, and students cooperate with each other. Provide collaborative education support services that support work education. In the following, as an example of the opinion board, it is assumed that the students' opinions are displayed in a matrix form on the opinion board.

  As shown in FIG. 1, the lesson support system 1 accommodates a teacher terminal 10, an electronic blackboard 20, and student terminals 30A to 30C. Although FIG. 1 illustrates three student terminals, the class support system 1 can accommodate any number of student terminals. Below, when each apparatus of student terminal 30A-30C is named generically without distinction, it may describe as "student terminal 30".

  The teacher terminal 10 and the student terminal 30 are connected via the network 5 so that they can communicate with each other. The network 5 may be any type of communication network such as the Internet (Internet) as well as a local communication network such as a LAN (Local Area Network) and a VPN (Virtual Private Network), regardless of wired or wireless.

  The teacher terminal 10 is a terminal device used by a teacher. The “teacher” here refers to the person who teaches among the participants in the class. As an example, there are various teachers, but they may not necessarily be qualified persons with various teacher licenses.

  As an embodiment, a collaborative education support program for a teacher terminal that implements the collaborative education support service described above is installed in the teacher terminal 10 as package software or online software. As described above, by operating the collaborative education support program for teacher terminals on the processor of the teacher terminal 10, as an example, selection of assignments for implementing collaborative education, distribution of assignments to each student terminal 30, each student Functions such as a list of opinions returned from the terminal 30 can be realized.

  For example, the teacher terminal 10 can employ a tablet information processing terminal, a so-called tablet terminal. By adopting the tablet terminal as the teacher terminal 10 in this way, the teacher terminal 10 can accept various instruction operations via a touch pen or fingers. In addition, the teacher terminal 10 can accept handwritten input such as a character string and a mark on the individual opinion screen on which one opinion is enlarged and displayed among the plurality of opinions displayed on the opinion board. In the following, inputting a handwritten character string or mark to the touch panel with a touch pen or finger is referred to as “handwriting input”, and character string or mark that the touch panel accepts via handwriting input is referred to as “mark description”. Of these, one-stroke writing may be described as “one-stroke mark description”.

  The electronic blackboard 20 is a device that displays an image output from a predetermined projector or the like.

  As an embodiment, an interactive whiteboard can be adopted for the electronic blackboard 20. A projector (not shown) is connected to the electronic blackboard 20. An image instructed by the teacher terminal 10 is projected onto the electronic blackboard 20 by the projector. In this way, the same image can be displayed between the teacher terminal 10 and the electronic blackboard 20. Needless to say, the electronic blackboard 20 may be any of a unit type, a board type, and an integrated type.

  The student terminal 30 is a terminal device used by students. The term “student” here refers to the person on the side of the class who is being taught. An example is a variety of students, but not necessarily students.

  As an embodiment, the student terminal 30 is installed with a collaborative education support program for student terminals. By operating such a collaborative education support program for student terminals on the processor of the student terminal 30, as an example, reception of assignments from the teacher terminal 10, input of answers to assignments, return of assignments to the teacher terminal 10, etc. Can be realized.

  For example, a tablet terminal can be adopted as the student terminal 30 as with the teacher terminal 10 described above. By adopting such a tablet terminal, the student terminal 30 can accept various instruction operations for the collaborative education support program via a touch pen or fingers.

  In addition, although a present Example illustrates the case where the teacher terminal 10 is functioned as a server apparatus between the teacher terminal 10 and the student terminal 30, while the student terminal 30 is functioned as a client terminal, The configuration is not limited to this. For example, a server device may be installed separately from the teacher terminal 10 to construct a client server system that accommodates both the teacher terminal 10 and the student terminal 30 as client terminals.

  In this embodiment, a case where the teacher terminal 10 and the student terminal 30 are implemented as tablet terminals is illustrated, but the implementation form of the teacher terminal 10 and the student terminal 30 is not limited to this. For example, the teacher terminal 10 and the student terminal 30 may be implemented as a mobile terminal device including a mobile communication terminal such as a smartphone, a mobile phone, or a PHS (Personal Handyphone System). Further, it may be implemented as a stationary information processing apparatus such as a personal computer or a notebook personal computer.

[Configuration of teacher terminal 10]
Subsequently, a functional configuration of the teacher terminal 10 according to the present embodiment will be described. FIG. 2 is a block diagram illustrating a functional configuration of the teacher terminal 10 according to the first embodiment. As shown in FIG. 2, the teacher terminal 10 includes a touch panel 11, a communication I / F (InterFace) unit 12, a storage unit 13, and a control unit 15.

  The teacher terminal 10 may include various functional units included in a known computer in addition to the functional units illustrated in FIG. For example, when the teacher terminal 10 is implemented as a tablet terminal, the teacher terminal 10 may further include a motion sensor such as an acceleration sensor or an angular velocity sensor. Further, when the teacher terminal 10 is implemented as a mobile communication terminal, the teacher terminal 10 may further include functional units such as an antenna and a GPS (Global Positioning System) receiver. Note that FIG. 2 illustrates, as an example, functional units when the teacher terminal 10 is implemented as a tablet terminal. However, when the teacher terminal 10 is implemented as a stationary terminal, a keyboard, a mouse, and a display are illustrated. It is good also as having input / output devices, such as.

  In FIG. 2, a touch panel 11 is a displayable and inputable device. As one aspect regarding display, the touch panel 11 displays an image output by an OS (Operating System) or an application program, including a collaborative education support program executed on the teacher terminal 10. As one aspect related to input, the touch panel 11 accepts touch operations such as tap, flick, sweep, pinch-in and pinch-out performed on the screen of the touch panel 11. Here, the touch panel 11 is illustrated as an input device for inputting an instruction to the teacher terminal 10, but the present invention is not limited to this, and the touch panel 11 further includes a physical key that realizes complementary input with the touch panel 11. It doesn't matter.

  The communication I / F unit 12 is an interface that performs communication control with other devices such as the electronic blackboard 20 and the student terminal 30. As an aspect of the communication I / F unit 12, a network interface card such as a LAN card can be employed. For example, the communication I / F unit 12 distributes an assignment for a collaborative lesson to the student terminal 30 or receives an answer to the assignment, such as a pros and cons or an opinion, from the student terminal 30. Further, the communication I / F unit 12 transmits an image to be displayed on the electronic blackboard 20, for example, an opinion board to the electronic blackboard 20, or receives an operation received on the electronic blackboard 20 from the electronic blackboard 20.

  The storage unit 13 is a storage device that stores various programs such as an OS (Operating System) executed by the control unit 15 and a class support program. As one aspect of the storage unit 13, a storage device such as a semiconductor memory element such as a flash memory, a hard disk, or an optical disk can be cited. The storage unit 13 is not limited to the above type of storage device, and may be a RAM (Random Access Memory) or a ROM (Read Only Memory).

  The storage unit 13 stores student data 13a, assignment data 13b, answer data 13c, handwriting input data 13d, and group setting data 13e as an example of data used in a program executed by the control unit 15. To do. In addition to the student data 13a, assignment data 13b, answer data 13c, handwriting input data 13d, and group setting data 13e, other electronic data, for example, drill teaching materials aiming at the development of memory and concentration can be stored. You can also.

  Among these, the student data 13a is data relating to students.

  As an embodiment, data in which items such as a student ID (IDentifier), a student name, and a student terminal IP address are associated can be adopted as the student data 13a. Here, “student ID” refers to identification information for identifying a student participating in a class. The “student name” refers to the student's last name. The “student terminal IP address” refers to the IP address of each student terminal 30.

  FIG. 3 is a diagram illustrating an example of the student data 13a. FIG. 3 shows student IDs, student names, and student terminal IP addresses for eight students. For example, in the example of the first record shown in FIG. 3, the student name identified by the student ID “1001” is “Tanaka”, and the IP address of the student terminal used by Tanaka is “XX.YY. It means "ZZ.A1". The other second and subsequent records also have different values but have the same meaning. Although FIG. 3 illustrates a case where there are eight student entries, the number of entries may be any number. If the students are classified into classes, the student ID, student name, and student terminal IP address can be managed for each class.

  The assignment data 13b is data relating to the assignment.

  As an embodiment, the task data 13b can employ data in which items such as a task ID, a task content, and a response time limit are associated. The “task ID” here refers to identification information for identifying a task given to a student in a class such as a collaborative class. The “task content” refers to the content of the task, and includes, for example, an agenda for discussion between teachers and students and between students. The “response time limit” refers to a time limit imposed when a student answers an assignment. The assignment data 13b may be stored in advance as support teaching materials, or may be registered as assignments input by the teacher through the teacher terminal 10.

  FIG. 4 is a diagram illustrating an example of the task data 13b. In the example of the first record shown in FIG. 4, the content of the task identified by the task ID “0001” is “What do you think about abortion of a minor?” It means that the time to do is within 20 minutes. In the example of the second record shown in FIG. 4, the content of the task identified by the task ID “0002” is “What do you think about the acceptance of rubble?” It means that the time to do is within 30 minutes. The other third and subsequent records also have different values but have the same meaning.

  The answer data 13c is data related to the answer to the problem.

  As one embodiment, data in which items such as a student ID, approval / disapproval, opinion contents, and opinion display area coordinates are associated can be adopted as the answer data 13c. Here, “pros and cons” refers to the selection result of whether the student is in favor or against the assignment. The “opinion content” refers to the content of the student's assertions and ideas about the task, and includes, for example, reasons for approval and disapproval and approaches to the task. The “opinion display area coordinates” refers to the coordinates of the area where the student's opinion is displayed on the opinion board. For example, when the area where the student's opinion is displayed is rectangular, the four vertices “ It can be represented by the coordinates of “upper left”, “lower left”, “upper right” and “lower right”. Hereinafter, an area where one opinion is displayed on the opinion board may be referred to as a “display area”. Here, the case where the area is defined by four vertices is illustrated, but the area can be defined by any other method, for example, one vertex or the center of gravity, the height and width of the area, etc. You can also define areas by

  FIG. 5 is a diagram illustrating an example of the answer data 13c. FIG. 5 shows a case where the opinions of the eight students shown in FIG. 3 are displayed on the opinion board. FIG. 5 illustrates a case where a coordinate system having the origin at the lower left vertex of the opinion board is adopted as an example of the coordinate system. In the example shown in FIG. 5, an opinion board is divided into eight equal parts, two vertically and four horizontally, so that one area is displayed on the opinion board in the size of “30” and “40”. The That is, from the left of the opinion board, each opinion is displayed in the order of Tanaka area, Yamada area, Suzuki area, Yamamoto area, and below Tanaka's opinion, Kuroda's opinion, Yamada's opinion Means that Sato's opinion and Yamamoto's opinion are displayed under Honda's opinion and Suzuki's opinion. Furthermore, in the example of FIG. 5, it means that students other than Honda have expressed their support for accepting rubble, and Honda has expressed their opposition to accepting rubble.

  Here, it is assumed that the opinions of the students displayed in the area are determined in advance for each area, that is, the items other than the pros and cons and the content of the opinion are set as initial values before the answer is obtained. However, it is possible to dynamically change which student's opinion is displayed in which area. For example, opinions can be displayed side by side according to approval or disapproval of the assignment, opinions can be displayed in order in which the answers are accepted, or opinions can be displayed in the order specified by the teacher terminal 10.

  The handwritten input data 13d is data related to handwritten input. The handwritten input data 13d is an example of a handwritten input history.

  As one embodiment, the handwritten input data 13d can employ data in which items such as description ID, locus, description end time, and group ID are associated. The “description ID” here refers to identification information for identifying a one-stroke mark description drawn by handwriting input. Such “one-stroke writing” refers to a series of trajectories detected from when the handwritten input is detected on the touch panel 11 until the handwritten input is not detected. The “trajectory” refers to the locus of the positions of the handwritten input dots forming the one-stroke mark description. For example, the coordinates of the start point, the relay point, and the end point of the one-stroke writing are used as an example of the position. . The “description end time” refers to the time when the one-stroke mark description ends, and for example, the time at which the coordinates of the end point of one-stroke writing are recorded in the trajectory forming the one-stroke mark description. The “group ID” indicates identification information for identifying a group to which the one-stroke mark description belongs. The “group” refers to a group for classifying mark descriptions. For example, mark descriptions are grouped for each delimiter using group setting data 13e described later.

  FIG. 6 is a diagram illustrating an example of the handwritten input data 13d. FIG. 6 illustrates that the mark description corresponding to the handwritten input received via the touch panel 11 is recorded for each stroke on the opinion board on which the opinions of the students are displayed in a list. Further, in FIG. 6, a plurality of one-stroke mark descriptions having the same group, that is, the group ID “1” are extracted and shown, but mark descriptions belonging to other group IDs may be recorded. Absent. For example, in the example of the record with the description ID “1001” shown in FIG. 6, handwritten input starts at the start point (20, 42), relay point (21, 40), relay point (22, 40),. This means that it is a one-stroke mark description that follows. Further, in the record with the description ID “1001”, it means that the time when the coordinates of the end point of the one-stroke mark description is recorded is 9: 46: 3: 51 on October 30, 2013. The records having the other description IDs “1002” to “1006” have different values but the same meaning.

  The group setting data 13e is data used to set a group in a one-stroke mark description by handwriting input.

  As an embodiment, the group setting data 13e can employ data in which items such as a threshold type and a threshold value are associated. As the “threshold value” mentioned here, for example, a threshold value to be compared with a coordinate difference between one-stroke mark descriptions and a threshold value to be compared with a time difference between one-stroke mark descriptions can be adopted. Furthermore, as an example, the coordinate difference can be obtained by calculating a difference between coordinates that are closest to each other among the coordinates of dots included in two one-stroke mark descriptions. The time difference can be obtained by calculating the difference between the description end times in the two one-stroke mark descriptions. Although the case where the time difference is obtained from the difference between the description end times is illustrated here, the time difference may be obtained from the difference between the description end time of one stroke mark description and the other description start time. Further, instead of the above coordinate difference, the distance difference between the one-stroke mark descriptions may be obtained.

  FIG. 7 is a diagram illustrating an example of the group setting data 13e. In the example of FIG. 7, it means that the time difference between the single stroke mark descriptions, that is, the threshold value to be compared with the difference in the description end times of the two single stroke mark descriptions is 2 seconds. Further, in the example of FIG. 7, the threshold value to be compared with the closest X-axis coordinate difference between the single-stroke mark descriptions is 20 dots, and is compared with the closest Y-axis coordinate difference between the single-stroke mark descriptions. This means that the threshold value is also 20 dots. Although details will be described later, the same group ID is assigned to the two one-stroke mark descriptions when the AND condition defined by the three threshold values is satisfied. That is, the time difference between the one-stroke mark descriptions is less than 2 seconds, the coordinate difference between the one-stroke mark descriptions in the X-axis direction is less than 20 dots, and the coordinate difference between the one-stroke mark descriptions in the Y-axis direction is 20 If it is less than a dot, it is determined that the two stroke mark descriptions are in the same group. In addition, although the case where the conditions defined by the above three threshold values are AND conditions is illustrated here, the conditions defined by the above three threshold values can be OR conditions, or only a part of the AND conditions. It can also be.

  3 to 7 exemplify cases where data is stored in a table format, the data may be stored in a format such as an object or XML (Extensible Markup Language).

  The control unit 15 has an internal memory for storing programs defining various processing procedures and control data, and executes various processes using these. As shown in FIG. 2, the control unit 15 includes an answer receiving unit 15a, a list display unit 15b, a recording unit 15c, a grouping unit 15d, and an enlarged display unit 15e.

  The answer receiving unit 15a is a processing unit that receives a student's answer to a certain task.

  As one embodiment, the answer reception unit 15a can cause the teacher terminal 10 to determine an assignment to be distributed to the student terminal 30. For example, the answer reception unit 15 a activates the process when an item for assignment selection is selected from the menu screen displayed on the touch panel 11. That is, the answer reception unit 15a causes the touch panel 11 to display an assignment selection screen including assignment ID options and assignment transmission buttons for requesting assignment distribution.

  Then, when the assignment transmission button is pressed after the assignment ID is selected on the assignment selection screen, the answer reception unit 15a receives the selection on the assignment selection screen among the assignment contents included in the assignment data 13b. An answer screen including the task content corresponding to is generated. Subsequently, the answer receiving unit 15 a transmits the previously generated answer screen to the student terminal 30. For example, the answer reception unit 15a can generate answer screen data provided with an input form for entering answers such as approval or disapproval of an assignment or an opinion along with the display of the contents of the assignment, and can transmit it to the student terminal 30. Although the case where the teacher terminal 10 generates an answer screen is illustrated here, the answer receiving unit 15a transmits the contents of the assignment, and the collaborative education support program for the student terminal that is executed on the student terminal 30 is an issue. It is also possible to generate an answer screen using the contents.

  Then, the answer reception unit 15a acquires the answer time limit associated with the task ID that has been selected on the task selection screen among the answer time limits included in the task data 13b. Thereafter, when the answer receiving unit 15a receives approval or disapproval of the assignment entered in the answer screen from the student terminal 30 and an opinion, the student corresponding to the IP address of the student terminal 30 among the records included in the answer data 13c. Pros and cons and opinions are registered in the ID record. Then, the answer reception unit 15a waits for the approval / disapproval of the assignment and the opinion to be transmitted from the student terminal 30 to the teacher terminal 10 until the response time limit has elapsed, and when the approval / disapproval of the assignment and the opinion are received. The process of registering in the answer data 13c is repeatedly executed.

  The list display unit 15b is a processing unit that displays a list of opinions of each student.

  As an embodiment, the list display unit 15b reads the response data 13c stored in the storage unit 13 when the response time limit has elapsed. In addition, the list display unit 15b displays approval and disapproval and opinions on the touch panel 11 and the electronic blackboard 20 according to the opinion display area coordinates set in the record for each record included in the answer data 13c. As a result, on the touch panel 11 and the electronic blackboard 20, an opinion board in which each student's approval and disapproval and opinions regarding the assignment are listed in a matrix is displayed.

  After the display of the opinion board, the list display unit 15b writes a one-stroke mark description according to the coordinates of the locus included in the description ID for each description ID included in the handwritten input data 13d every time the handwritten input data 13d is updated. Draw on the opinion board. At this time, the list display unit 15b uses the layer for displaying the pros and cons of the student and the opinion as a lower layer, and sets the layer for displaying the mark description by handwriting as the upper layer, and the mark description by the student as to the pros and cons and the opinion and the handwriting input. It can be displayed again on the touch panel 11 and the electronic blackboard 20. For this reason, if the student's approval / disapproval or opinion display overlaps with the mark description by handwriting input, the mark description by handwriting input is displayed on the near side of the screen. It can be visually recognized. It should be noted that the list display unit 15b ends the display on the subject when the end button included in the opinion board displayed on the touch panel 11 is pressed.

  Here, the case where the same content is displayed by synchronizing the display of the touch panel 11 and the electronic blackboard 20 is illustrated, but the content displayed on the touch panel 11 and the electronic blackboard 20 may be different from each other.

  The recording unit 15c is a processing unit that records handwritten input.

  As an embodiment, the recording unit 15c waits for handwritten input to be detected on the touch panel 11 when the opinion board is displayed by the list display unit 15b. At this time, when handwritten input is detected on the touch panel 11, it can be estimated that the starting point of one stroke writing was received. In this case, the recording unit 15c assigns a description ID. For example, the recording unit 15 c adds the description ID with the number assigned to the handwritten input data 13 d stored in the storage unit 13. After that, the recording unit 15c records the coordinates of the dot at which the handwriting input is detected in association with the description ID numbered this time among the description IDs included in the handwriting input data 13d. And the recording part 15c continues the process which adds and records the coordinate of handwriting input until handwriting input is no longer detected on the touch panel 11. FIG. Thereafter, when handwriting input is no longer detected on the touch panel 11, it can be estimated that the end point of one stroke writing has been received. In this case, the recording unit 15c uses the time at which the coordinates of the end point of one stroke writing are recorded as the description end time, and records the description end time in the handwritten input data 13d in association with the description ID numbered this time. As a result, a series of handwritten input trajectories detected from when the handwritten input is detected on the touch panel 11 to when the handwritten input is not detected, that is, a one-stroke mark description is recorded in the handwritten input data 13d. At this stage, no group ID is assigned to the record of the description ID assigned this time, and the group ID is assigned by the grouping unit 15d described later.

  The grouping unit 15d is a processing unit that groups one-stroke mark descriptions included in the handwritten input data 13d.

  As one embodiment, the grouping unit 15d activates the process every time the description end time is recorded in the handwritten input data 13d by the recording unit 15c. Specifically, the grouping unit 15 d first reads the group setting data 13 e stored in the storage unit 13. Then, the grouping unit 15d acquires a trajectory and a description end time regarding the mark description recorded immediately before the one-stroke mark description in which the description end time is recorded this time among the one-stroke mark descriptions included in the handwritten input data 13d. Hereinafter, the mark description recorded immediately before the one-stroke mark description in which the description end time was recorded this time may be referred to as “immediately-written one-stroke mark description”.

  Then, the grouping unit 15d calculates a time difference between the description end times between the current one-stroke mark description and the immediately preceding one-stroke mark description. Then, the grouping unit 15d determines whether or not the time difference between the description end times is less than a threshold value read from the group setting data 13e, for example, less than 2 seconds. At this time, when the time difference between the description end times is less than the threshold value, the grouping unit 15d determines a pair of coordinates that are closest to each other between the trajectory of the current one-stroke mark description and the previous one-stroke mark description. Extract. Thereafter, the grouping unit 15d calculates a coordinate difference in the X-axis direction and a coordinate difference in the Y-axis direction between the current one-stroke mark description and the immediately preceding one-stroke mark description. After that, the grouping unit 15d determines whether or not the coordinate difference in the X-axis direction is a threshold value read from the group setting data 13e, for example, less than 20 dots. At this time, when the coordinate difference in the X-axis direction is less than the threshold value, the grouping unit 15d determines whether the coordinate difference in the Y-axis direction is less than the threshold value read from the group setting data 13e, for example, less than 20 dots. Is further determined.

  Here, the time difference between one-stroke mark descriptions is less than 2 seconds, the coordinate difference between the one-stroke mark descriptions in the X-axis direction is less than 20 dots, and the coordinate difference between the one-stroke mark descriptions in the Y-axis direction is 20 dots. If it is less than two, it can be presumed that the two mark descriptions are a series of mark descriptions included in the same description segment from both time and place. In this case, the grouping unit 15d assigns the same group ID as the group ID assigned to the immediately preceding one-stroke mark description to the current one-stroke mark description. On the other hand, the time difference between one-stroke mark descriptions is 2 seconds or more, the coordinate difference between the mark descriptions in the X-axis direction is 20 dots or more, or the coordinate difference between the mark descriptions in the Y-axis direction is In the case of 20 dots or more, it can be estimated that there is a low possibility that two one-stroke mark descriptions are a series of mark descriptions included in the same description break. In this case, the grouping unit 15d assigns a new group ID different from the group ID assigned to the immediately preceding one-stroke mark description to the current one-stroke mark description. After that, the grouping unit 15d registers the group ID numbered previously in association with the description ID of the current one-stroke mark description among the description IDs included in the handwritten input data 13d.

  The enlarged display unit 15e is a processing unit that enlarges and displays some of the opinions included in the opinion board. For example, the enlarged display unit 15e is a handwritten input included in the history, and belongs to a part of the display area when a series of handwritten inputs continuously input are partially included in the part of the display area. It is an example of the display control part which performs control which also displays the part which is not contained in some display areas among a series of handwritten inputs according to display data.

  As an embodiment, the enlarged display unit 15e performs the following process when selection of an opinion is received on the opinion board displayed on the touch panel 11. In the following, “Selected Opinion” is described from the viewpoint of distinguishing the opinion that has been selected on the opinion board from the opinion that has not received other selections, and the screen in which the opinions are individually enlarged is indicated as “Individual”. "Opinion screen" may be described. For example, the enlarged display unit 15 e reads the handwritten input data 13 d stored in the storage unit 13. Then, the enlarged display unit 15e extracts a mark description whose trajectory falls within the display area of the selected opinion from the one-stroke mark description included in the handwritten input data 13d read out earlier. Subsequently, the enlarged display unit 15e searches the handwritten input data 13d for a one-stroke mark description having the same group ID as the one-stroke mark description that falls within the display area of the selected opinion.

  At this time, when the one-stroke mark description having the same group ID as the one-stroke mark description that fits in the display area of the selected opinion is hit, the enlarged display unit 15e includes the one-stroke mark description description ID obtained as a result of the search. Select one description ID. Then, the enlarged display unit 15e determines whether or not the entire stroke of the one-stroke mark description for which the description ID has been previously selected falls within the display area of the selected opinion. At this time, when the entire locus of the one-stroke mark description does not fit within the display area of the selected opinion, the enlarged display unit 15e has a maximum X coordinate value that protrudes most in the X-axis direction from the handwritten input coordinates that protrude from the display area of the selected opinion. And the maximum Y coordinate value which protrudes most in the Y-axis direction is specified. The maximum X coordinate value and the maximum Y coordinate value are calculated as absolute values as an example. Subsequently, the enlarged display unit 15e determines whether the maximum X coordinate value is larger than the stored value of the maximum X coordinate value stored in the internal memory (not shown) up to this point, that is, whether the maximum X coordinate value> the stored value. Determine whether or not. When the maximum X coordinate value> the stored value, the enlarged display unit 15e overwrites and stores the maximum X coordinate value in the internal memory. Further, the enlarged display unit 15e determines whether or not the maximum Y coordinate value is larger than the stored value of the maximum Y coordinate value stored in the internal memory up to this point, that is, whether or not the maximum Y coordinate value> the stored value. Further determine. At this time, the enlarged display unit 15e overwrites and saves the maximum Y coordinate value in the internal memory when the maximum Y coordinate value> the stored value.

  As described above, the enlarged display unit 15e allows the maximum X-coordinate value and the maximum Y-coordinate value to protrude from the selected opinion display area for each one-stroke mark description belonging to the same group as the one-stroke mark description that falls within the selected opinion display area. The process of searching for is repeatedly executed. Note that each one-stroke mark description belonging to the same group is an example of a series of handwritten inputs that are continuously input.

  Thereafter, the enlarged display unit 15e executes the following processing when the above search is completed for all the one-stroke mark descriptions that belong to the same group as the one-stroke mark description that falls within the display area of the selected opinion. That is, the enlarged display unit 15e adjusts the size of the frame of the original image used for enlargement according to the maximum X coordinate value and the maximum Y coordinate value stored in the internal memory. For example, the enlargement display unit 15e uses the maximum X coordinate value as a reference and enlarges the left and right sizes of the frame of the original image and uses the maximum Y coordinate value as a reference. , Enlarge the upper and lower size of the frame of the original image. More specifically, the enlarged display unit 15e subtracts the maximum X coordinate value from the X coordinate value to the coordinates of the upper left and lower left vertices of the opinion display area coordinates, and at the upper right and lower right of the opinion display area coordinates. The maximum X coordinate value is added to the X coordinate value of the coordinates of the vertices. Further, the enlarged display unit 15e subtracts the maximum Y-coordinate value from the Y-coordinate value to the lower-left and lower-right vertex coordinates of the opinion display area coordinates, and the upper-left and upper-right vertex coordinates of the opinion display area coordinates. The maximum Y coordinate value is added to the Y coordinate value. In this way, the frame size of the original image used for enlargement is determined. Here, the case where the frame of the original image is enlarged in both the left and right directions and the upper and lower directions is illustrated here. However, the direction in which the locus protrudes from any side of the display area is detected, and the direction in which the locus protrudes from the left and right Or one of the upper and lower sides corresponding to the direction in which the locus protrudes can be enlarged. In addition, when there is no mark description that fits within the display area of the selected opinion, or when there is no mark description that belongs to the same group even if there is a mark description, the frame size of the original image may not be adjusted. preferable.

  When the size of the frame of the original image is determined, the enlarged display unit 15e displays the selected opinion and the one-stroke mark description belonging to the same group as the one-stroke mark description that fits in the display area of the selected opinion. An original image used for enlargement is generated by superimposing. For example, the enlarged display unit 15e arranges an image of the selected opinion at a position on the frame where the centroid position of the frame and the centroid position of the selected opinion match, and the same group as the one-stroke mark description that fits in the display area of the selected opinion An original image used for enlargement is generated by superimposing a one-stroke mark description belonging to the frame on the frame. In addition, the enlarged display unit 15e generates the individual opinion screen by enlarging the previously generated original image at a predetermined magnification, for example, a magnification that fits in the display column of the selected opinion among the individual opinion screens, and then the touch panel. 11 and the electronic blackboard 20 are displayed. Note that when the return button arranged on the individual opinion screen is selected in a state where the individual opinion screen is displayed on the touch panel 11, the opinion board is displayed on the touch panel 11 and the electronic blackboard 20 by the list display unit 15b. .

  The answer receiving unit 15a, the list display unit 15b, the recording unit 15c, the grouping unit 15d, and the enlarged display unit 15e cause a CPU (Central Processing Unit) or an MPU (Micro Processing Unit) to execute a display control program. Can be realized. Each functional unit described above can also be realized by a hard wired logic such as an application specific integrated circuit (ASIC) or a field programmable gate array (FPGA).

[Specific example of handwriting update]
Next, a specific example of enlarged display will be described with reference to FIGS. FIG. 8 is a diagram illustrating an example of an assignment selection screen. FIG. 9 is a diagram illustrating an example of an answer screen. 10 and 11 are diagrams illustrating an example of an opinion board. 12 and 13 are diagrams illustrating an example of the individual opinion screen.

  For example, when assignment selection is accepted from a menu screen displayed on the touch panel 11, an assignment selection screen 200 shown in FIG. 8 is displayed on the touch panel 11. This assignment selection screen 200 is generated from the assignment data 13b shown in FIG. 4 as an example. As shown in FIG. 8, the assignment selection screen 200 displays a list of assignment IDs and assignment contents included in the assignment data 13 b shown in FIG. 4, and a selection button for selecting assignments to be distributed to the student terminal 30. Displayed on the left side of the assignment ID.

  The task transmission button 200A is pressed down in a state in which the check box of the selection button is checked, that is, in the example illustrated, the check box of the task ID “0002” is checked. In this case, an answer screen corresponding to the checked task ID “0002” is distributed from the teacher terminal 10 to the student terminals 30A to 30C. On the other hand, when the cancel button 200B is pressed, the assignment is returned to the menu screen without distributing the assignment to the student terminal 30. In addition, although the case where only the task ID “0002” is selected is illustrated here, a plurality of tasks may be selected at a time.

  As shown in FIG. 9, the answer screen 210 includes the task content of the task ID “0002” to be answered by the student. In addition, check boxes 210A and 210B for inputting approval / disapproval of the assignment, an input form 210C for inputting an opinion on the assignment, a send button 210D for transmitting an answer to the teacher terminal 30, and an opinion for clearing the opinion And a clear button 210E. Under such a GUI (Graphical User Interface), the student expresses approval for the assignment by checking the check box 210A for approval, or opposes the assignment by checking the check box 210B for the opposite. I can express. Furthermore, the student can express an opinion such as a reason for or against by inputting a text of a character string into the input form 210C in the opinion column. As described above, when either the check box 210A or 210B is checked and the send button 210D is pressed while the text string is entered in the input form 210C in the opinion column, the approval / disapproval and the opinion are received from the student terminal 30. Is returned to the teacher terminal 10. When the opinion clear button 210E is pressed, it is possible to clear the approval / disapproval and the input of the opinion input so far, and input again from the beginning.

  When answers to the assignment are collected from the student terminal 30 in this way, an opinion board 220 shown in FIG. 10 is displayed on the touch panel 11 and the electronic blackboard 20. In the opinion board 220 shown in FIG. 10, the opinions of the students with respect to the assignment with the assignment ID “0002” are displayed in a matrix form according to the answer data 13c shown in FIG. As shown in FIG. 10, on the opinion board 220, the area in which one opinion is displayed is 30 dots vertically and 40 dots horizontally, and the opinions of each student are displayed in a 2 × 4 matrix. That is, in the upper part of the opinion board 220, opinions are displayed in the order of Tanaka, Yamada, Suzuki, and Yamamoto from the upper left to the upper right, and in the lower part of the opinion board 220, Mr. Kuroda from the lower left to the lower right, The ranking opinions of Mr. Honda, Mr. Sato, and Mr. Asai are displayed. In the opinion board 220, one opinion can be individually selected by touching the opinions of the eight students with a touch pen or fingers. When the end button 220A provided at the lower right of the opinion board 220 is pressed, the collaborative education related to the subject ends and the menu screen returns.

  After the opinion board 220 is displayed, when handwritten input is performed as in the handwritten input data 13d shown in FIG. 6, for each description ID included in the handwritten input data 13d, as shown in FIG. A one-stroke mark description is superimposed and displayed on the opinion board according to the coordinates of the locus included in the description ID. Among these mark descriptions, the one-stroke mark description of the description ID “1001” corresponds to the first stroke of the first character “I” in the handwritten character string “Like”. Further, the mark description with the description ID “1002” corresponds to the first stroke of the second stroke of the first character “I” in the handwritten character string “Like”. The mark description with the description ID “1003” corresponds to the first stroke of the first stroke of the second character “I” of the handwritten character string “Like”. Further, the mark description with the description ID “1004” corresponds to the first stroke of the second stroke “I” of the second character of the handwritten character string “Like”. The mark description with the description ID “1005” corresponds to the first stroke of the first stroke of the third character “Ne” of the handwritten character string “Like”. The mark description with the description ID “1006” corresponds to the first stroke of the second stroke of the third character “Ne” of the handwritten character string “Like”.

  As in the opinion board 220 shown in FIG. 11, when Mr. Tanaka's opinion is selected in a state where a mark description by handwriting input is superimposed on each student's opinion, the individual opinion in which the opinion of Mr. Tanaka is expanded A screen is displayed.

  At this time, when the above-described conventional technology is applied, the individual opinion screen 300 shown in FIG. 12 is displayed on the touch panel 11 or the electronic blackboard 20. In the case of the above prior art, the display area included in Mr. Tanaka's opinion display area coordinates in the opinion board 220 shown in FIG. 11 is enlarged. In this case, as shown in FIG. 12, from the description ID “1001” to the description stroke of the description ID “1005”, that is, the first stroke of the first character “I” of the handwritten character string “Like” to the handwriting Up to the first stroke of the third character “Ne” of the character string “Like” is displayed on the individual opinion screen 300, but the third character “Ne” of the handwritten character string “Like” is displayed. The second stroke of is interrupted and the rightmost part is missing.

  On the other hand, in the case of this embodiment, along with Mr. Tanaka's opinion, the mark description that fits within the display area of Mr. Tanaka's opinion, that is, the same group ID as the one-stroke mark description such as description IDs “1001” to “1005”. An original image to be used for enlargement is generated including the second stroke of “Ne”, the third character of the handwritten character string “Like”. For this reason, in the case of the present embodiment, the individual opinion screen 300 shown in FIG. 12 is displayed on the touch panel 11 or the electronic blackboard 20. Therefore, as shown in FIG. 13, from the description ID “1001” to all the one-stroke mark descriptions of the description ID “1006”, that is, the first stroke of the first character “I” of the handwritten character string “Like” — The second screen of the third character “Ne” of the handwritten character string “Like” can be displayed without interruption. The individual opinion screen 300 and the individual opinion screen 400 display a button 330A or 430A for returning to the opinion board 220 shown in FIG.

[Process flow]
Next, the process flow of the teacher terminal 10 according to the present embodiment will be described. Here, (1) class support processing, (2) grouping processing, and (3) display control processing executed by the teacher terminal 10 will be described.

(1) Class Support Processing FIG. 14 is a flowchart illustrating a procedure of class support processing according to the first embodiment. As an example, this process is executed when the assignment distribution is accepted from the menu screen displayed on the touch panel 11.

  As illustrated in FIG. 14, the answer receiving unit 15 a causes the touch panel 11 to display a task selection screen including a task ID option, a task transmission button for requesting task distribution, and the like (step S <b> 101).

  When the assignment transmission button is pressed after the assignment ID is selected on the assignment selection screen (Yes in step S102), the answer reception unit 15a executes the following process. That is, the answer receiving unit 15a generates an answer screen including the task content corresponding to the task ID received from the task selection screen among the task contents included in the task data 13b (step S103). Subsequently, the answer receiving unit 15a transmits the answer screen generated in step S103 to the student terminal 30 (step S104).

  In addition, the answer receiving unit 15a acquires a response time limit associated with the task ID that has been selected on the task selection screen among the response time limits included in the task data 13b (step S105).

  Thereafter, when the pros and cons of the assignment entered in the answer screen and an opinion are received from the student terminal 30 (Yes in step S106), the answer accepting unit 15a executes the following process. That is, the answer reception unit 15a registers the approval and disapproval in the record of the student ID corresponding to the IP address of the student terminal 30 among the records included in the answer data 13c (step S107).

  Then, until the response time limit has passed (No in step S108), the process waits for the approval and disapproval of the assignment to be transmitted from the student terminal 30 to the teacher terminal 10 (step S106), and receives the approval and disapproval of the assignment and the opinion. In the case (step S106 Yes), the process (step S107) for registering in the answer data 13c is repeatedly executed.

  Thereafter, when the response time limit has elapsed (Yes in step S108), the list display unit 15b displays the approval and disapproval and the opinion on the touch panel 11 and the electronic blackboard according to the opinion display area coordinates set in the record for each record included in the response data 13c. 20 is displayed. As a result, an opinion board in which the opinions of the students are listed in a matrix is displayed (step S109).

  Thereafter, when the handwritten input data 13d is updated (Yes in step S110), the list display unit 15b writes a one-stroke mark description according to the coordinates of the trajectory included in the description ID for each description ID included in the handwritten input data 13d. It is displayed superimposed on the opinion board (step S111).

  And when selection of opinion is received on the touch panel 11 (step S112 Yes), the "display control process" which displays said individual opinion screen by the enlarged display part 15e is performed (step S113).

  Thereafter, the process from step S110 to step S113 is repeatedly executed until an end operation is accepted on the opinion board (No in step S114). Thereafter, when an end operation is accepted on the opinion board (step S114 Yes), the process is ended.

(2) Grouping Process FIG. 15 is a flowchart illustrating a grouping process procedure according to the first embodiment. This process is repeatedly executed in the background of the class support process described above when an opinion board is displayed on the touch panel 11 in step S109 of FIG.

  As illustrated in FIG. 15, the recording unit 15 c waits for handwriting input to be detected on the touch panel 11 (step S <b> 201). At this time, when handwritten input is detected on the touch panel 11 (Yes in step S201), it can be estimated that the starting point of one stroke writing has been received. In this case, the recording unit 15c assigns a description ID (step S202).

  Then, the recording unit 15c records the numbered description ID in the handwritten input data 13d, and records the coordinates at which the handwritten input is detected in association with the description ID (step S203).

  And the recording part 15c continues the process which adds and records the coordinate of handwriting input until handwriting input is no longer detected on the touch panel 11 (step S204 No). Thereafter, when handwriting input is no longer detected on the touch panel 11 (No in step S204), it can be estimated that the end point of one stroke writing has been received. In this case, the recording unit 15c uses the time when the coordinates of the end point of one stroke writing are recorded as the description end time, and records the description end time in the handwritten input data 13d in association with the description ID numbered this time ( Step S205).

  Thereafter, the grouping unit 15d reads a threshold used for grouping from the group setting data 13e stored in the storage unit 13 (step S206). Subsequently, the grouping unit 15d obtains a trajectory and a description end time regarding the one-stroke mark description recorded immediately before the one-stroke mark description in which the description end time is recorded this time among the one-stroke mark descriptions included in the handwritten input data 13d. (Step S207).

  Then, the grouping unit 15d calculates a time difference between the description end times between the current one-stroke mark description and the immediately preceding one-stroke mark description (step S208). Then, the grouping unit 15d determines whether or not the time difference between the description end times is less than a threshold value read from the group setting data 13e, for example, less than 2 seconds (step S209).

  At this time, if the time difference between the description end times is less than the threshold (Yes in step S209), the grouping unit 15d determines the coordinates closest to each other between the current stroke mark description locus and the immediately preceding stroke mark description locus. Are extracted (step S210).

  Thereafter, the grouping unit 15d determines that the closest coordinate difference among the coordinates in the X-axis direction in the current one-stroke mark description and the immediately preceding one-stroke mark description is read from the group setting data 13e, for example, less than 20 dots. It is determined whether or not (step S211).

  When the coordinate difference in the X-axis direction is less than the threshold (Yes in step S211), the grouping unit 15d determines that the coordinate difference in the Y-axis direction in the current one-stroke mark description and the immediately preceding one-stroke mark description is the group setting data. It is further determined whether or not the threshold value read from 13e is, for example, less than 20 dots (step S212).

  Here, when the coordinate difference in the Y-axis direction between the single-stroke mark descriptions is less than 20 dots (Yes in step S212), a series of two single-stroke mark descriptions included in the same description break from both the time and place points. The mark description can be estimated. In this case, the grouping unit 15d assigns the same group ID as the group ID assigned to the immediately preceding one-stroke mark description to the current one-stroke mark description (step S213).

  On the other hand, the time difference between one-stroke mark descriptions is 2 seconds or more, the coordinate difference between the mark descriptions in the X-axis direction is 20 dots or more, or the coordinate difference between the mark descriptions in the Y-axis direction is 20 dots. In the case described above (step S209 No, step S211 No, or step S212 No), it can be estimated that there is a low possibility that the two one-stroke mark descriptions are a series of descriptions included in the same delimiter. In this case, the grouping unit 15d assigns a new group ID different from the group ID assigned to the immediately preceding one-stroke mark description to the current one-stroke mark description (step S214).

  Then, the grouping unit 15d registers the group ID numbered in step S213 or step S214 in association with the description ID of the current one-stroke mark description among the description IDs included in the handwritten input data 13d (step S213). S215). Then, it returns to said process of step S201 and repeats the process of said step S201-step S215.

(3) Display Control Process FIG. 16 is a flowchart illustrating the procedure of the display control process according to the first embodiment. This process is a process corresponding to step S113 shown in FIG. 14, and is started when an opinion selection is accepted on the opinion board (step S112 Yes).

  As shown in FIG. 16, the enlarged display unit 15e reads the handwritten input data 13d stored in the storage unit 13 (step S301). Then, the enlarged display unit 15e extracts a one-stroke mark description whose trajectory falls within the display area of the selected opinion from the one-stroke mark description included in the handwritten input data 13d read in step S301 (step S302). Subsequently, the enlarged display unit 15e searches the handwritten input data 13d for a one-stroke mark description having the same group ID as the one-stroke mark description that fits in the selected opinion display area (step S303).

  At this time, when a one-stroke mark description having the same group ID as the one-stroke mark description that fits in the display area of the selected opinion is hit (step S304 Yes), the enlarged display unit 15e displays the one-stroke mark obtained as a result of the search. One description ID is selected from the description IDs of the description (step S305). If a single stroke mark description having the same group ID does not hit (No in step S304), the processing in steps S305 to S313 below is skipped, and the process proceeds to step S314.

  The enlarged display unit 15e then determines whether or not the entire stroke of the one-stroke mark description with the description ID selected in step S305 is within the selected opinion display area (step S306). If the entire description trajectory falls within the display area of the selected opinion (Yes in step S306), the following steps S307 to S311 are skipped, and the process proceeds to step S312.

  At this time, when the entire stroke of the one-stroke mark description does not fit within the display area of the selected opinion (No in step S306), the enlarged display unit 15e is the most in the X-axis direction from the coordinates of the handwritten input that protrudes from the display area of the selected opinion. The maximum X coordinate value that protrudes and the maximum Y coordinate value that protrudes most in the Y-axis direction are specified (step S307). Specifically, in the area coordinates of Tanaka's display area of student ID 1001, the X coordinates are 0 and 40, so if there is a mark description having coordinates of 0 or less, or coordinates of 40 or more, Tanaka's display area It is specified as the coordinates that protrude. The same determination is made for the Y axis.

  Subsequently, the enlarged display unit 15e determines whether or not the maximum X coordinate value is larger than the stored value of the maximum X coordinate value stored in the internal memory, that is, whether or not the maximum X coordinate value> the stored value. S308). If the maximum X coordinate value> the stored value (Yes in step S308), the enlarged display unit 15e overwrites and stores the maximum X coordinate value in the internal memory (step S309). If the maximum X coordinate value is not greater than the stored value (No in step S308), the process of step S309 is skipped and the process proceeds to step S310. As described above, since it is a case in which the small value and the large value of the X-axis coordinate are protruded, the above-mentioned maximum X-coordinate value> stored value is the small value of the X-axis stored in the internal memory. It means that it is smaller than or larger than the large value of the X axis stored in the internal memory. In short, there are two values stored in the internal memory, one for each axis. The same applies to the Y axis.

  Then, the enlarged display unit 15e further determines whether or not the maximum Y coordinate value is larger than the stored value of the maximum Y coordinate value stored in the internal memory, that is, whether or not the maximum Y coordinate value> the stored value. S310). At this time, if the maximum Y coordinate value> the stored value (Yes in step S310), the enlarged display unit 15e overwrites and stores the maximum Y coordinate value in the internal memory (step S311). If the maximum Y coordinate value is not greater than the stored value (No in step S310), the process of step S311 is skipped and the process proceeds to step S312.

  Thereafter, the processes from step S305 to step S311 are repeated until all the one-stroke mark descriptions belonging to the same group as the one-stroke mark description within the selected opinion display area are selected (No in step S312).

  When all of the one-stroke mark descriptions belonging to the same group as the one-stroke mark description that falls within the display area of the selected opinion are selected (Yes in step S312), the enlarged display unit 15e displays the maximum X coordinate value stored in the internal memory. Then, the frame size of the original image used for enlargement is adjusted according to the maximum Y coordinate value (step S313).

  Further, the enlarged display unit 15e arranges an image of the selected opinion at a position on the frame where the gravity center position of the frame adjusted in step S313 matches the gravity center position of the selected opinion, and a stroke that fits in the display area of the selected opinion An original image used for enlargement is generated by superimposing a one-stroke mark description belonging to the same group as the mark description on the frame (step S314).

  Then, the enlarged display unit 15e generates an individual opinion screen by enlarging the original image generated in step S314 at a predetermined magnification, and then displays the screen on the touch panel 11 and the electronic blackboard 20 (step S315).

  Note that when the return button arranged on the individual opinion screen is selected in a state where the individual opinion screen is displayed on the touch panel 11 (Yes in step S316), the process ends. As a result, the opinion board is displayed again on the touch panel 11 and the electronic blackboard 20 by the list display unit 15b.

[One aspect of effect]
As described above, when the teacher terminal 10 according to the present embodiment enlarges the display area of one student's opinion among a plurality of students' opinions, the display area of the mark description input by handwriting when displaying the list is displayed. Enlarge the one-stroke mark description in the same group as the one-stroke mark description that fits inside. Therefore, even if a part of the stroke mark description protrudes from the display area, it will be expanded together with the opinion if the group is the same. Therefore, according to the teacher terminal 10 which concerns on a present Example, it can suppress that a part of one-stroke mark description input by handwriting by list display is missing by enlarged display.

  Although the embodiments related to the disclosed apparatus have been described above, the present invention may be implemented in various different forms other than the above-described embodiments. Therefore, another embodiment included in the present invention will be described below.

[Shape of opinion board]
In the first embodiment, the case where a rectangle is adopted as the shape of the opinion board is illustrated, but the shape of the opinion board is not limited to this. That is, other shapes such as a polygon, a circle, and an ellipse can be adopted as the shape of the opinion board.

[How to divide opinion boards]
In the first embodiment, the case where the opinions of the students are displayed in a matrix on the opinion board is illustrated. However, the opinion board does not necessarily have to be divided into a matrix, and the opinion board is not necessarily divided into equal parts. As a matter of course, any method of dividing the opinion board can be adopted. For example, students are grouped according to their opinions, for example, pros and cons, weight is given to the group according to the number of groups in the whole, and the group opinion is displayed on the opinion board according to the weight of the group. The sheath shape can be changed.

[Handwriting input scene]
Moreover, in said Example 1, although the case where a handwritten input was received on an opinion board was illustrated, the application scene of embodiment is not limited to this. For example, handwriting input can be similarly received when handwriting input is received on the individual opinion screen.

[Other implementation examples]
In the first embodiment, the case where a client server system in which the teacher terminal 10 is a server device and the student terminal 30 is a client terminal is constructed is illustrated, but the embodiment is not limited thereto. For example, it can be implemented as a client server system further including a server device that accommodates both the teacher terminal 10 and the student terminal 30 as client terminals. In this case, the server device may be implemented with each function in the control unit 15 of the teacher terminal 10. For example, the server device may be implemented as a Web server that provides the collaborative education support service, or may be implemented as a cloud that provides the collaborative education support service by outsourcing. When a demand is received from the client terminal such as the teacher terminal 10 and the student terminal 30 via the network 5, a collaborative education support service is provided by executing the above class support process, grouping process, and display control process. it can.

[Display control program]
The various processes described in the above embodiments can be realized by executing a prepared program on a computer such as a personal computer or a workstation. In the following, an example of a computer that executes a display control program having the same function as that of the above-described embodiment will be described with reference to FIG.

  FIG. 17 is a schematic diagram illustrating an example of a computer that executes a display control program according to the first and second embodiments. As illustrated in FIG. 17, the computer 100 includes an operation unit 110a, a speaker 110b, a camera 110c, a display 120, and a communication unit 130. Further, the computer 100 includes a CPU 150, a ROM 160, an HDD 170, and a RAM 180. These units 110 to 180 are connected via a bus 140.

  As shown in FIG. 17, the HDD 170 has a display that exhibits the same functions as those of the answer receiving unit 15a, the list display unit 15b, the recording unit 15c, the grouping unit 15d, and the enlarged display unit 15e described in the first embodiment. A control program 170a is stored in advance. The display control program 170a is integrated or separated as appropriate, similar to the constituent elements of the answer receiving unit 15a, list display unit 15b, recording unit 15c, grouping unit 15d, and enlarged display unit 15e shown in FIG. May be. In other words, all data stored in the HDD 170 need not always be stored in the HDD 170, and only data necessary for processing may be stored in the HDD 170. For example, the list display unit 15b, the recording unit 15c, the grouping unit 15d, and the enlarged display unit 15e can be narrowed down to be modularized. In this case, the display control program can be added to the lesson support program, or the display control program can be a library of lesson support programs.

  Then, the CPU 150 reads the display control program 170 a from the HDD 170 and expands it in the RAM 180. Accordingly, as shown in FIG. 17, the display control program 170a functions as a display control process 180a. The display control process 180a expands various data read from the HDD 170 in an area allocated to itself on the RAM 180 as appropriate, and executes various processes based on the expanded data. The display control process 180a is a process executed by the answer receiving unit 15a, the list display unit 15b, the recording unit 15c, the grouping unit 15d, and the enlarged display unit 15e shown in FIG. 2, for example, FIGS. The process shown in is included. In addition, each processing unit virtually realized on the CPU 150 does not always require that all processing units operate on the CPU 150, and only a processing unit necessary for the processing needs to be virtually realized.

  Note that the display control program 170a is not necessarily stored in the HDD 170 or the ROM 160 from the beginning. For example, each program is stored in a “portable physical medium” such as a flexible disk inserted into the computer 100, so-called FD, CD-ROM, DVD disk, magneto-optical disk, or IC card. Then, the computer 100 may acquire and execute each program from these portable physical media. In addition, each program is stored in another computer or server device connected to the computer 100 via a public line, the Internet, a LAN, a WAN, etc., and the computer 100 acquires and executes each program from these. It may be.

DESCRIPTION OF SYMBOLS 1 Class support system 5 Network 10 Teacher terminal 11 Touch panel 12 Communication I / F part 13 Memory | storage part 13a Student data 13b Assignment data 13c Response data 13d Handwritten input data 13e Group setting data 15 Control part 15a Answer reception part 15b List display part 15c Recording unit 15d Grouping unit 15e Enlarged display unit 30A, 30B, 30C Student terminal

Claims (6)

Memorize the history of handwriting input made on the display screen,
Accepting designation for a part of the display area of the display screen,
A series of handwritten inputs included in the history, wherein a series of handwritten inputs including a handwritten input that fits in the partial display area is identified from among a series of handwritten inputs that are continuously input,
In accordance with display data belonging to the partial display area, control to display a series of handwritten input specified from the history, causing the computer to execute a process ,
The process of performing the display control includes the adjacent display adjacent to the partial display area by superimposing a series of handwritten input specified from the history on the display data belonging to the partial display area. A display control program that hides a portion of an area display that overlaps a series of handwritten input specified from the history .   The handwriting input included in the history of the handwriting input, wherein the time difference between the first handwriting input and the second handwriting input input after the first handwriting input is less than a predetermined threshold 2. The display control according to claim 1, further comprising: causing the computer to execute a process of classifying the first handwritten input and the second handwritten input into the same series of handwritten inputs. program.   The handwriting input included in the handwriting input history, the difference or distance between the first handwriting input and the second handwriting input input after the first handwriting input The computer is further configured to execute a process of classifying the first handwritten input and the second handwritten input into the same series of handwritten inputs when the difference is less than a predetermined threshold. The display control program according to 1. A storage unit for storing a history of handwriting input performed on the display screen;
An accepting unit that accepts designation for a part of the display area of the display screen;
A series of handwritten inputs included in the history, wherein a series of handwritten inputs including a handwritten input that fits in the partial display area is identified from among a series of handwritten inputs that are continuously input,
A display control unit that performs control to display a series of handwritten input specified from the history according to display data belonging to the partial display area ;
The display control unit displays a display of an adjacent display area adjacent to the partial display area by superimposing a series of handwritten input specified from the history on display data belonging to the partial display area. A display control device that hides a portion overlapping a series of handwritten input specified from the history . Computer
Memorize the history of handwriting input made on the display screen,
Accepting designation for a part of the display area of the display screen,
A series of handwritten inputs included in the history, wherein a series of handwritten inputs including a handwritten input that fits in the partial display area is identified from among a series of handwritten inputs that are continuously input,
In accordance with the display data belonging to the part of the display area, control to display a series of handwritten input specified from the history, execute processing ,
The process of performing the display control includes the adjacent display adjacent to the partial display area by superimposing a series of handwritten input specified from the history on the display data belonging to the partial display area. The display control method characterized by hiding the part which overlaps with a series of handwritten input specified from the said log | history among the display of an area . Memorize the history of handwriting input made on the display screen,
Accepting designation for a part of the display area of the display screen,
A series of handwritten inputs included in the history, wherein a series of handwritten inputs including a handwritten input that fits in the partial display area is identified from among a series of handwritten inputs that are continuously input,
When a series of handwritten input specified from the history is partially included in the partial display area, the specific handwriting input is specified from the history according to display data belonging to the partial display area. The size of the portion not included in the partial display area of the series of handwritten inputs identified from the history together with the control of displaying the portion of the series of handwritten inputs that does not fit in the partial display area Performing a control to enlarge and display a part of the display area and a series of handwritten input partially included in the part of the display area ,
A display control program for causing a computer to execute processing.

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