The Implementation of Action Research For The Improvement of Biology Teaching and Learning in Senior Secondary Schools in Nigeria
The Implementation of Action Research For The Improvement of Biology Teaching and Learning in Senior Secondary Schools in Nigeria
The Implementation of Action Research For The Improvement of Biology Teaching and Learning in Senior Secondary Schools in Nigeria
org
ISSN 2222-1735 (Paper) ISSN 2222-288X (Online)
Vol.7, No.7, 2016
Abstract
The main objective of the study was to implement an action research strategy to improve the teaching and
learning of biology in senior secondary schools in Nigeria. Specifically the following research questions were
raised:-
• What are the levels of intellectual challenge included in the activities used for classroom and laboratory
instructions?
• What are the levels of intellectual challenge included in the redesigned course materials for classroom
and laboratory instructions.
• Will there be an increase in learning when a revised course material is used for classroom / laboratory
instruction.
• Is there any relationship between activities enjoyed by students and those that enhance their learning?
• Is there any relationship between effective learning and perceived students enjoyment of an activity?
Purposive sampling was used to select four senior secondary schools from urban and rural location of Lagos
State. In each of the participating school two intact classes were used to act as experimental and control group.
Altogether 267 students and their four biology teachers participated in the study. The redesigned course material
was used to teach biology to the experimental class and the traditional course material was used for the control
group for the second term of the 2014/2015 academic year.
The major findings were:
• The result of the analysis of the review of the activities and exercises in the recommended Biology
textbook in use in Lagos State schools showed that all the exercises and activities were predominantly at the
lower cognitive levels of Blooms Taxonomy of educational objectives.
• The result also showed that the mean achievement score of the students taught with the redesigned
course materials was significantly higher than the mean achievement score of those taught using the traditional
course materials.
• There was no significant correlation between activities enjoyed by students and those that enhanced
their learning.
Educational implications of the findings for the improvement of instructional practices were discussed.
Keywords: Biology Teaching, Biology Learning, Action Research Secondary School.
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of their citizens and teaching science as inquiring as a major part of their educational reforms (Abd – EL –
Khalick et al 2004). Likewise in Nigeria, main objectives of the most recent curriculum reform initiatives
involved infusing constructivist principles to the teaching and learning of the sciences. (Obioma 2009).
An inquiry approach to teaching and learning is considered to best reflect a quality science education,
and thus is largely promoted in various reform documents. Inquiry teaching and constructivism are approaches
that share a philosophical base structured around students’ construction of knowledge and their active and
responsible participation in learning. With this said, as the US National Science Education Standards (NSES)
authors preferred the word inquiry over constructivism, inquiry has become the most ubiquitously used term
(Anderson, 2002).
In an attempt to find an operational definition for inquiry based science teaching Kahveci (2010)
contrasted it with textbook – based approaches to teaching science. A textbook – based approach means teaching
by largely depending on and following textbook content in contrast with an inquiring approach. Settlage (2007)
highlights that inquiry “has long been promoted as the antidote for teaching science directly from a textbook”
and Von Secker (2002) indicates that the science education reform calls for pedagogical shift from a teacher –
centered, textbook – based instructional paradigm to a student – centered, inquiry – based model. While textbook
– based teaching has been associated with direct instruction, inquiry – based teaching has been suggested to
depend largely on students’ hands – on investigations with various curriculum materials used as guides (Pine et
al, 2006).
Although these distinctions have often been made on an ‘either/or’ basis, textbooks are still being
widely used in classrooms and continue to be an essential part of the curriculum (Kahveci, 2010). As various
scholars indicate, science textbooks have played a dominant role in the teaching of science and have been mostly
the science curriculum (Chiappetta & Fillaman 2007; Pizzim, Shepardson & Abell 1992). Confirming this to
be true in Nigerian classrooms, Udeani (2013) draw attention to the power textbook might have in supporting
effective teaching and that textbooks are used as the primary organizer of subject matter at all levels of schooling
and given that they are a prominent component of curriculum should reflect inquiry oriented teaching in both its
subject matter and activities.
With this study we want to focus on the instructional activities used in daily classroom practice and also
on the questions inherent in the textbook prescribed for instruction in biology at the senior secondary school
level. We argue that student learning is especially directed by questions included in textbooks which students
and teachers work with daily. In concurrence with Kahveci (2010) we believe that textbook questions are
primary activators for students to focus on the content offered in textbooks and to engage in learning in a
particular way. To gain insight into the level of intellectual challenge in the learning activities and questions
offered to students in the textbook we analysed the textbooks using Bloom Taxonomy of educational objectives.
Some students are more successful than others in learning science. This may be due to differences in the
way students learn – whether it is meaningful or rote learning (Ausubel 1968). Meaningful learning requires
relevant prior knowledge, meaningful learning tasks, and a meaningful learning set. (Novak 1988) In contrast,
rote learning is arbitrary, verbatim, and not related to experience with events or objects, and lacks affective
commitment on the part of the learner to relate new and prior knowledge. The nature of students’ learning – that
is, meaningful or rote – is related to the construct “approaches to learning” (Chin & Brown 2000).
Approaches to learning or learning approaches refer to the “ways in which students go about their
academic tasks, thereby affecting the nature of the learning outcome” (Biggs 1994). Research on approaches to
learning derives much from the seminal work of Marton and Saljo (1976) on reading from test using
phenomenographic methods, were learning is studied from the perspective of the learner. These authors
distinguished between deep and surface approaches to learning and this distinction “appears to be a powerful
form of categorization for differences in learning strategies” (Entwistle & Ramsden, 1983). The general
framework and defining features of the deep and surface approaches were described by Biggs (1987) and
Marton (1983).
In essence, the deep approach is associated with intrinsic motivation and interest in the content of the
task, a focus on understanding the meaning of the learning material, an attempt to relate parts to each other, new
ideas to previous knowledge, and concepts to everyday experiences. There is an internal emphasis where the
learner personalizes that task, making it meaningful to his or her own experience and to the real world. In
contrast, the surface approach is based on extrinsic or instrumental motivation. The learner who uses a surface
approach perceives the task as a demand to be met, tends to memorize discrete facts, reproduces terms and
procedures through rote learning, and views a particular task in isolation from other tasks and from real life as a
whole.
Teaching which is assisting students to cultivate a deep understanding of what is being taught can be
achieved through a number of thought provoking exercises (Levin & Nolan, 2000) such as making students
explain concepts in their own words, making predictions, drawings, finding exemplars in new contexts and
applying concepts to new situations (Bandt 1992). Increasing the intellectual challenges of the tasks requested in
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student assignments and activities encourages students to achieve a deeper understanding of course materials.
This deep approach correlates to Bloom’s taxonomy in that moving task beyond a knowledge level to application,
comprehension, analysis and synthesis will encourage learners to move beyond the surface approach. Teaching
strategies correlates with student learning, with students adopting deep approaches in classrooms that are more
student – centered (Prosser & Trigwell 1999).
To achieve these effects, teachers must move away from lecture – based teaching to more participative
approaches that include real – life applications of learning, such as the increased involvement of students in
experimental designs and activities. Hence, the focus of this research was to look into issues relating to students
effective learning and understanding in biology classes by applying the action research approach to teaching.
The study attempted to address issues relating to shortage of students who are available to enroll for
courses in the sciences at the university and take up careers in science and technology. The lack of understanding
of students in a number of concepts in the sciences have deprived students from taking up careers in fields such
as engineering, medicine, pharmacy, agriculture, biotechnology etc. Nigeria in a bid to tune into the global
technology drive has set up some innovative hubs in science and technology. The scarcity of well trained
personnel has continued to plague these initiatives. To ameliorate these problem proper and effective strategies
for the delivery of course materials in classroom and laboratory sessions would have to be developed at both the
school, state and national levels. Although the New National Curriculum in the sciences packaged sufficient
information to achieve the national goal in science education, inadequate preparation and delivery of the course
materials will continue to be the bane of the implementation of the curriculum to achieve meaningful learning on
the part of the students.
Problem identification
The development of course materials and the method of delivery in the classrooms and laboratories, as observed
with the current syllabuses in the sciences in Nigeria, are not sufficient to enhance the students learning and
prepare them adequately for the challenges of higher education. Although, the syllabuses in the sciences provides
for adequate learning to prepare the student for taking up careers in science and engineering, the development of
course materials and the type of activities required to achieve the desired outcome would have to be addressed
early and adequately.
Activities in the teaching of biology include lectures, laboratory practical and demonstrations,
observations of preserved specimens, and dissections of plants and preserved animals. These activities do not
consistently include higher levels of intellectual challenge.
Assessment of learning is typically by performance on written examinations and reports of practical
laboratory exercises, usually at the end of the term or year, during which students normally reproduce
memorized materials rather than applying, analyzing and synthesizing the materials learned.
For cognitive ability to be developed by the students, a progressive learning pattern has to be followed
in a hierarchical manner according to Bloom’s taxonomy, from simple understanding to application and
synthesis of the knowledge, and performance tasks undertaken by students should reflect the range of cognitive
skills (Reed & Bergemann, 2011).
Activities of higher order intellectual levels thus need to be consistently included in the course material
to facilitate such higher goals. The lack of intellectual challenges in the course materials and the method of
delivery in both classroom lessons and the laboratory practical sessions constitute the basis for this research
project.
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Vol.7, No.7, 2016
Research Questions
1. What are the levels of intellectual challenge included in the activities used for classroom and
laboratory instructions?
2. What are the levels of intellectual challenge included in the redesigned course materials for
classroom and laboratory instructions.
3. Will there be an increase in learning when a revised course material is used for classroom /
laboratory instruction.
4. Is there any relationship between activities enjoyed by students and those that enhance their
learning?
5. Is there any relationship between effective learning and perceived students enjoyment of an
activity?
Research Hypotheses
1. There will be no significant difference in the mean achievement scores of students taught with
the redesigned course materials and those taught with the traditional course materials.
2. There will be no significant correlation between activities enjoyed by the students and those
that enhance their learning.
3. There will be no significant correlation between effective learning and perceived student
enjoyment of an activity.
Methods
The Design of the Study
The basic design of the study used action research to explore the effects of specific changes in the design of
activities in the course material used in senior secondary school biology.
Comparison was made between students who participated in the traditional activities and those who
participated in the redesigned course materials for the term. Gerald Susman (1983) made a significant
contribution to understanding and implementing action research. His model distinguishes five phases to be
conducted within each research cycle as presented in Figure I
DIAGNOSING
Identifying a problem.
{Low levels of intellectual challenge
in the traditional course materials}
EVALUATION
TAKING ACTION
Studying the consequences
of an action. Selectingacourseof action.
{Improvement in learning} {Teachingtheredesignedcourse
materials}.
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A problem is identified and data is collected for a more detailed diagnosis. This is then followed by a
collective postulation of several possible solutions, from which a single plan of action emerges and is
implemented. Data on the results of the intervention are collected and analyzed and the findings are interpreted
in light of how successful the action has been.
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students.
In the control class the same content were presented employing the traditional lecture method for
instruction.
At the completion of each concept or group of concepts achievement tests, questionnaires were
administered to the students. Assignments and laboratory reports were also collected.
Sampling
Purposive sampling was used to select the four senior secondary schools from an urban and a rural location in
Lagos State.
The four schools selected are:-
1. Arch Adelaja Senior High School, Bariga
2. Shomolu Senior High School, Shomolu
3. Government Technical College Odumola, Epe
4. Surulere Girls Senior Secondary School, Surulere
The four schools were selected based on the following criteria: schools that are equivalent in performance in the
past Lagos State Unified Examination, have graduate biology teachers that have been teaching in the same
school and the same level for not less than five years, teachers that are willing to participate in the study.
In each of the participating school two intact classes were used to act as experimental and control group
respectively. Altogether two hundred and sixty seven (267) students and their four biology teachers participated
in the study. Average age of the students was 16+.
Research Instrument
Various research instruments were used for the study. These included:-
1. 3 Biology Achievements Tests
a. Biology Achievement Test 1
This test contained 30 items and covered the following concepts – Tissues and Supporting
Systems; Components of the Mammalian Skeleton, Axial and Appendicular Skeleton, Joints,
and supporting Tissues in Plants.
b. Biology Achievement Test 2
This test contained 37 items and covered Excretory and Transport Systems in Plants and
Animals.
c. Biology Achievement Test 3
This test contained 27 items and covered the following concepts – Alimentary canal, Digestive
Systems, Feeding Habits in both Invertebrates and Vertebrates.
The table of specification for the three Achievement Tests is included in the Appendix. The
reliability indices for the test are as follows: - Achievement test 1 (0.81); Test 2 (0.79); Test 3
(0.83). The split half reliability coefficient was calculated using the Pearson Product moment
correlation coefficient.
2. Student Enjoyment of Activity Questionnaire
Four questionnaires were developed on a 5 – point Likert Scale to assess students’ enjoyment of
the activities they carried out during the class periods. The questionnaires covered Skeletal Systems,
Transportation in Living organisms, Excretory System and the Digestive System.
Table 2: The Reliability Test of Questionnaire on Students Enjoyment of Learning Activities
Instrument Scale Statistics Reliability
Statistics
Source N of N of Mean STD CV Cronbach’s
Items Samples Alpha
Digestion 10 140 42.73 5.518 0.13 0.776
Excretion 8 152 25.70 6.225 0.24 0.781
Skeletal System 13 132 56.29 5.542 0.10 0.769
Transportation in Living 14 136 55.65 0.849 0.15 0.849
Organisms
Pooled Data 45 560 188.74 14.370 0.08 0.828
The test of reliability result of the responses of Students’ Enjoyment of Learning Activities, using
standardized Cronbach’s Alpha indicates that the instruments are reliable, since the Cronbach’s Alpha Statistics
obtained in each section and overall is 70% threshold value. The validation of reliability results of instrument is
carried out using the coefficient of variable (CV) result which are ˂ 0.50 threshold value, implying strong
homogeneity on how the respondents rated the items. Hence, there is an internal consistency of the answers
provided by the students, and therefore the data do not violate the assumption of reliability.
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Figure 5: Bar chart of the Mean score of Students’ Enjoyment of Learning Activities
The bar chart shows the mean score of students’ enjoyment of learning biological activities with the
achievement score. It shows that enjoyment of learning activities by students is most in skeletal system, followed
by digestive system, and it is least in excretory system. The error bar indicates that equal treatment was
administered in each section of the learning activity and among the participating students for optimum response.
Hypothesis 2: There will be no significant correlation between activities enjoyed by the student and those that
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Discussion of Results
The result of the analysis of the activities and end of chapter questions in the recommended biology text used for
senior secondary schools in Nigeria broken down by cognitive level is reported in Tables 3 & 4 and Figure 2 & 3.
The analysis showed the preponderance of low cognitive questions (Knowledge 55%; Comprehension 40%) and
for the activities 54% are at the lower level; 41% at the medium level and 5% at the higher cognitive level.
These results are similar to the results of Udeani 2013; Kahveci, 2010 and Pizzini et al 1992 that
found out that input level ie low cognitive level questions dominated in the commonly used secondary science
textbooks in their respective countries.
The book analyzed in this study showed that the higher cognitive level questions is low – less than 5%.
Low level questions require the students to recall information from memory; higher order questions promote
creation and evaluation (Pizzini et al 1992). Also, considering Bloom’s Taxonomy of educational objectives in
the cognitive domain, for higher level skills, higher level questions should be asked. Input level questions would
be likely to promote skills in the knowledge and at most comprehension level, processing questions in the
application and analysis levels and output questions in the synthesis and evaluation level.
Research into instructional processes have reiterated the importance of students engagement with the
learning materials for meaningful learning. A truly inquiry oriented textbook as recommended by the Nigerian
Education Research and Development Centre should pose interesting questions leading students to collect and
organize data and involve them in the teaching process as active learners. Contrary to an encyclopedic
presentation of the material as historically enacted in science textbooks many contemporary texts are intended to
initiate inquiry and suggest interesting investigations (Chiapetta & Collette, 1989).
In the textbook analyzed the low proportion of higher order level questions and activities is
disappointing in these respects.
In this study, the action research method was used to teach the redesigned course materials to students
in the experimental group for the second term of the 2014/2015 academic session. The results on Table 6 and
Table 7 indicates that when equal variances are assumed, that there is a significant difference in the mean
achievement scores of students taught with the redesigned course materials and those taught with the traditional
course materials (t = 8.710; p = 0.05 significant level). The inquiry approach used involved spending time with
laboratory activities and various equipment, real life specimens and material and watching video clips. These
activities require more class time than the traditional approach. This teaching approach could sometimes be seen
as limiting the breadth and depth of the content covered.
Nonetheless, according to Chiappetta and Collete (1989) within an inquiry – based approach “what is
lost in terms of subject matter is gained in terms of understanding the nature of scientific inquiry”.
Another result which attract attention is the no or very low relationship between student biology
achievement and their perception of enjoyment of biology activities. In other words, students may be successful
in science even if they do not enjoy science. This is an unexpected result. However there may be some reasons
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which we can allude to the Nigerian Education System. In Nigeria, students have several high stake National
Examinations like the West African Examination Council (WAEC) and National Examination Council (NECO)
which are taken at the end of the senior secondary school level. These examinations are so vital and important
for students and parents since it is perceived as a tool for academic and social mobility.
Therefore, Nigerian students are motivated to be high achievers in many concepts in order to be
successful in national examinations even if they do not enjoy the topic.
The result is in agreement with the findings of Ozdemir (2003). His study observed that students’
enjoyment of science did not seem to have any significant contribution on science achievement. In addition; he
also noted that science achievement had a negative relationship with classroom activities that are student
centered. Also agreeing with these results Anwer, Igbal & Harrison (2012) in their study with urban and rural
students in Pakistan found no relationship between attitudes towards scientific inquiry, enjoyment of science
lesson and science achievement.
The result of the present study led the authors to conclude with Kember, et al (1997) that when
students are engaged in integrating theory and practice and in reflecting on learning, they are more likely to
develop a deep approach to learning.
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