LESSON PLAN IN SCIENCE 10

SUBJECT/LEVEL QUARTER/DOMAIN SECTION/TIME DATE

Biology 10 Third Quarter 10 – YAKAL Feb. 28,
2023
(BERSEBA NATIONAL HIGH 8:45 – 9:45
SCHOOL)

I. OBJECTIVES zx

A. Content Standards The learners demonstrate understanding of:

1. organisms as having feedback mechanisms, which are
coordinated by the nervous and endocrine systems;
2. how these feedback mechanisms help the organism maintain
homeostasis to reproduce and survive.
B. Performance Standard
C. Learning The learners should be able to describe the feedback mechanisms
Competencies involved in regulating processes in the female reproductive system
Write the LC code for each (e.g. menstrual cycle)
S10LT-IIIc-35

D. Specific Objectives At the end of the lesson the students are expected to:
1. explain the important events that happen in each stage of the
menstrual cycle;
2. reflect about the natural changes that occur in the ovary and the
uterus as essential part of sexual reproduction;
3. mark the calendar with the day-to-day changes in the menstrual
cycle.

II. CONTENT THE MENSTRUAL CYCLE

III. LEARNING RESOURCES

A. References
1.Teacher’s Guide pages 181 – 182
2. Learners Material 251 – 253
pages
B. Other Learning 2 Calendar Charts, Scissors, Tape, Glue
Resource
Diagrams of Male and Female Reproductive Systems
PPT, Laptop, Smart TV

C. Strategy 5 Es, Discovery Learning

 D. Lesson Integration MAPEH (Health and Family Planning)

IV. PROCEDURES

PRELIMINARY ACTIVITIES A. Prayer

B. Checking of attendance through the class monitor
The teacher will remind students who are late to refrain from their
tardiness.

C. Setting of Standards:
The teacher will remind the students of the class rules agreed
from Day 1.
a. Listen to the teacher attentively while the class is going on and
avoid making unnecessary noise.
b. Ask questions only after the teacher is done talking.
c. Raise your right hand if you want to be recognized.
d. Turn off or put your cell phones to silent mode during class
hours.
e. Avoid transferring from one seat to another.
f. Participate and cooperate to your group during class activities.

D. Review of the past lesson.

The Female and Male Reproductive Systems
What did we discuss yesterday?
What are the parts of male and female reproductive systems?

DEVELOPMENTAL
ACTIVITIES

The teacher will get the students’ attention by asking them an

interesting question pertaining to the changes that they are
A. ENGAGE
experiencing in their teenage years.
Establishing a purpose for the
lesson
(MAPEH – HEALTH INTEGRATION)
“What physical changes you have observed since grade 7 until
now?”
The teacher will accept answers from both sexes but will later on
focus with the physical changes among women.
“What particular event usually happens among women in their
teenage years?”
 The teacher will expect ‘menstruation’ as an answer.
“Who can share their first experiences of menstruation to the
class?”
(The teacher will respond “very good” or “good job” to correct
responses from the students’ answers and participation.)

The teacher will relate to the students that their first menstruation
called a menarche is related to their holistic health. This is the
reason why there are differences of menarch
e in terms of age, some will have their first menstruation at age 10
some are at 15. The intensity also of pain during their
dysmenorrhea/menstrual cramps depends in their healthy lifestyle.
So students should maintain a balanced and healthy lifestyle.
B. EXPLORE DISCOVERY LEARNING. For students to be able to understand the
Exploring new concepts and different events that take place in the menstruation cycle, they will
practicing new skills engage to an activity that will describe the feedback mechanisms
involved in regulating processes in the female reproductive system
vis a vis menstruation cycle.

Students are encouraged to participate in the activity. Plus factor is

given to students who are very participative.

The students will be given time to convene, investigate, share and

organize information they could get from the activity. With the same
grouping as agreed in the previous meetings, a leader, a secretary,
and a facilitator will be chosen for each group. Each group will use
their books to access the information. All the members of the group
will convene and the leader will discuss within the group the
concepts related to the activity. (Refer to the Learner’s Module
page 252 – ACTIVITY: MARK MY CALENDAR!)
C. EXPLAIN Each group will now share in front the class the result of their activity
Developing mastery and answer the following guide questions:
1. How long does a regular menstruation cycle last?
2. Describe what happens to an egg during the first 14 days of the
cycle in Part A.
3. Describe what happens to the egg if fertilization occurs.
4. Explain what takes place in the uterus after fertilization.
5. Why is it important to study the menstruation cycle?
(The teacher will respond “very good” or “good job” to correct
responses from the students’ answers and participation.)
 Using their calendar, the teacher will allow the students to trace and
describe the important events in the menstrual cycle.

D. ELABORATE This section will give students the opportunity to expand and
Finding practical application solidify/concretize their understanding of the concept and apply it to
of concepts and skills in daily real – world situation.
living

The teacher will discuss to the students the important events

happening in the ovaries and uterus of the female reproductive
system during the menstrual cycle.

Stages of the Menstrual Cycle:

1. Menstruation
2. Proliferative
3. Ovulation
4. Luteinizing

To summarize, the important events during the menstrual cycle are

as follows:

1. The pituitary gland controls and starts the cycle.

2. The pituitary gland releases hormones that cause the egg in the
ovary to mature. The luteinizing hormone (LH) initiates that
maturation of the follicles, converts ruptured follicles into corpus
luteum and causes the secretion of progesterone. The follicle
stimulating hormone (FSH) assists in the maturation of the follicles
and causes the secretion of estrogen from the follicles.
3. Meanwhile, the ovary itself releases a hormone called estrogen,
which causes the uterine lining to increase in thickness. The uterine
lining becomes thicker so that the fertilized egg can attach to it.
4. The ovary releases an egg on day 14. Assume that no sperm is
 present.
5. The egg moves through the oviduct and enters the uterus.
6. Meanwhile, the uterine lining continues to thicken.
7. The egg has not been fertilized, therefore, it will not attach to the
uterus.
8. The thick uterine lining is no longer necessary, so the cells of the
thickened uterine lining break off and leave the vagina. The
unfertilized egg is lost and some blood is lost too. This loss of cells
from the uterine lining, blood, and egg is called menstruation.
9. After menstruation, the cycle starts again.

The teacher will provide a video presentation for the students to

watch in order to grasp a concrete imagery of the events in
menstrual cycle. Video downloaded from: Osmosis.org

Students should realize that the menstrual cycle has been used by
married couple as part of their family planning. They sort to this
method because of restrictions in religion or traditional beliefs.
However, this method to prevent unwanted pregnancy is not really
accurate since the menstrual cycle may have either delays or
extensions in its steps. So, relying in the number of days to apply the
calendar method with respect to the menstrual cycle is not really that
reliable. (MAPEH INTEGRATION – FAMILY PLANNING)

To further inculcate the concept of menstrual cycle into the minds of

the students, the teacher will let the students do an individual activity.

Students are asked to draw a wheel and divide it into 28 as the

average days of the menstrual cycle. After which, the students are
tasked to label the wheel with the correct stages of the menstrual
cycle correspondent to the number of days for each stage.
E. EVALUATE I. True or False
Evaluating learning
Directions: Write TRUE if the statement is correct and FALSE if it is
incorrect.

1. On average, an ovary releases only one egg every 28 days. True

2. Hormones control the many changes in the reproductive system
including the menstrual cycle. True
3. Menstrual cycle happens every two months from the first onset of
menstruation. False
 4. Menstrual cramps are the results of the strong contractions of the
uterine wall that occur after menstruation. False
5. The pituitary gland controls and starts the menstrual cycle. True

V. REMARKS

VI. REFLECTION

A. No. of learners who

earned 80% in the
evaluation

B. No. of learners who

require additional
activities for remediation
who scored below 80%

C. Did the remedial lesson

worked? No. of learners
who have caught up with
the lesson

D. No. of learners who

continue to require
remediation

E. Which of my teaching
strategies worked well?
Why did this work?

F. What difficulties did I

encounter which my
principal or supervisor
can help me solve?

G. What innovation or
localized material did I
use/discover which I wish
to share with other
teachers?
Prepared by:

JERSWEN A. AROMBO
Demonstrator / T - I

Noted and Approved by:

EMMANUEL S. SAGA
Instructional Supervisor / MT-I

ARIEL B. CARMELOTES
School Head / HT-I