DETAILED LESSON PLAN IN SCIENCE
Prepared by: Princess G. San Pedro
I.
Objectives
After going through this module, you are expected to:
A. Explain the processes of the cell cycle, including events that take place
during interphase, mitosis, and cytokinesis,
B. Compare the three sub-stages of interphase.
C. Cite the importance of cell cycle in real life .
II.
III.
Subject Matter
A. Topic
- Cellular Reproduction:Cell Cycle
B. Resources
- Science Quarter 4-Module 2: Cellular Reproduction
- ScienceFourth Quarter Learning Activity Sheet
- https://youtu.be/nYlYneY-RdY?si=n1dN8YCQk2FUspKE
- https://youtu.be/y8_astZ5Tig?si=PQo3uke3SVSxP5QS
- https://youtu.be/1N6wuN95pKk?si=zi_cKFUiUtuZo5b5
C. Materials
- PowerPoint Presentation
- Speaker
- Printed Material
- Activity sheet
Procedure
Teachers’ Activity
Students’ Activity
Routine
Greetings !
Prayer
Classroom management
Checking of attendance
A. Motivation
You have learned in your
previous lessons about the Digestive system , the
system that changes food into a usable form by
means of a group of organs.Again, what is the
function of our digestive system?
The function of the digestive system is
digestion, the breakdown of organic
compounds into their simple forms for
use by the cells.
Exactly! Let’s have a brief review
about our last topic by having an
activity.
Directions: Recall the previous lesson about
digestive system. Rearrange the parts of digestive
system in correct sequence during digestion
process. Write the letter of the correct answer on
a separate sheet of paper.
DIGESTION PROCESS
A. anus
1.
B. esophagus
2.
C. large intestine
3.
D. mouth
4.
E. rectum
5.
F. small intestine
6.
G. stomach
7.
I think you are all ready for our new lesson .
B. Presentation
Before we start our today's topic, I'd like you to
take a look at these two images ,analyze it
carefully . This activity will help set the tone
for our discussion today. Are you all set, class?
What does this two images show ?
It shows a life cycle .
Have you ever watched a tadpole turn into an
adult frog?
Yes .
If so, you are perhaps familiar with the idea
of a life cycle. Frogs go through some
interesting life cycle transitions: from egg to
larva (tadpole), then finally, to an adult frog.
Can you give more examples of organisms
that has a life cycle ?
Humans, plants, and bacteria, also have
life cycles, a series of developmental
steps that an individual goes through
The same thing happens with the living cells.
The cell cycle can be compared to as the life
cycle of a cell, a series of growth and
developmental steps a cell undergoes
between its “birth” and reproduction.
Now, do you have a wild guess for our next
lesson ?
from birth until the time it reproduces.
I think its all about Cell Cycle ..
C. Lesson Proper
Alright , Before we start our today's
topic we’re going to have an activity
entitled ACTIVITY 1: Puzzle
solving ! This activity will help set the
tone for our discussion today. Are you
all set, class?
Directions: Locate ten (10) words that
are associated to cellular reproduction
in the puzzle. They can be read
horizontally, vertically, or diagonally.
Write your answers on your notebook .
Those words we unlock are terms that
we are going to encounter . Now lets
know more about our topic .
Take a look at this illustration of the
cell cycle . What can you perceive or
infer ?
Based on the illustration , there are four
indicated phases , the mitotic phase , first
growth phase , synthesis phase , second
growth phase .
Alright since you’ve mentioned the
different phases , lets talk first about
the two stages of cell cycle , do you
have any idea about the two stages of
the cell cycle ?
The two stages of cell cycle is the
interphase where the chromosomes are
long, and extended, and the cell division
or mitotic phase where the chromosomes
become condensed or thickened.
Lets
define first the term
interphase .Interphase is the interval
between two cell divisions. During this
stage, the cell is not dividing; it obtains
nutrients and metabolizes, grows,
replicates its DNA in preparation for
mitosis.
On that two stages of cell cycle , can
you now give me the three sub-stages
of interphase .
The three sub stages are ; G1 phase , S
phase and the G2 phase .
For us to widen your knowledge , we’re going to
have an activity entitled ACTIVITY 2 :WHERE
DO I BELONG !
Direction : I will divide the class into three
groups . Each group will have a stage of
interphase to represent . The teacher will give a
box of sentences that describes the different
stages and will going to write it down on the
board if it belongs to G1 phase, S phase and G2
phase .
-synthesis of protein and ribonucleic acid or

RNA occurs
chromosomes in preparation for the next cell
division.
-cell grows initially
-cell grows rapidly
-cell prepares for the actual cell division
- also called the first gap phase
-the cell synthesizes a complete copy of the
DNA in its nucleus.
-The centrosomes help separate DNA during
M phase.
- begins to reorganize its contents in
preparation for mitosis
- ends when mitosis begins
G1 phase.
- During G1
phase, also called the first gap phase, the cell
grows physically larger, copies organelles,
and makes the molecular building blocks it
will need in later steps. synthesis of protein
and ribonucleic acid or RNA occurs
ell
grows initially.
S phase.
-In S phase, the cell synthesizes a complete
copy of the DNA in its nucleus. It also
duplicates a microtubule-organizing structure
called the centrosome. The centrosomes help
separate DNA during M phase.
synthesized thus replicating the chromosomes
in preparation for the next cell division.
G2 phase.
-During the second gap phase, or G2 phase,
the cell grows more, makes proteins and
organelles, and begins to reorganize its
contents in preparation for mitosis. G2
phase ends when mitosis begins.
rapidly,cell prepares for the actual cell
division .
(powerpoint presentation for discussion).
Based on the illustration , what have you observe
during G1 phase ?
The cell is not dividing , it grows initially.
Exactly , how about during S phase ?
the chromosomes in preparation for the
next cell division.
That’s right , and lastly what happen during G2
phase ?
or seperation .
Alright , it will now prepare for cell division .
I have here a video presentation for you to
deepen your knowledge , listen and take note the
important details .
(https://youtu.be/nYlYneYRdY?si=an4Lylbe7AzqoNEx)
Now , based on the video , what are the two types
of cell division .
What happen during mitosis ?
It’s the mitosis and meiosis.
Multicellular organisms undergo growth
and development and when they repair
damage tissues .
How about meiosis , what happen during this
type of cell division ?
It produce sex cells such as sperm and
egg cell .
Based on the video , what wil happen when the
cell divides?
Nucleus and cytoplasm also divides .
And after the division of the nucleus or
karyokinesis the cytoplasm will also divides also
known as what?
Cytokinesis .
Where does cytokinesis occur ?
In cells that lacks cell wall .
When does cleavage furrow forms?
Starts at the exterior of the cell moving
inwards until the cell is divided into two
cells .
Well said , how about in plant cell what will form
when the cell divides ?
It will form a cell plate in the center and
will become a cell wall that act as the
protective layer of plant cell .
D. Generalization
To check your understanding lets have
another activity entitled ACTIVITY
3 :COMPLETE ME!
Directions: From the choices given
below, complete the table by writing
the letter corresponding to the cellular
activity that describes the phase
indicated. Write your answers on a
separate sheet of paper.
ANSWER:
1.
2.
3.
4.
5.
6.
7.
8.
D
A
E
G
F
H
B
C
Lets give those who got a perfect score 5 claps .
E. Application
Can you give me the importance of cell cycle in
real life situations ?
(Students answer may vary )
The cell cycle is a fundamental biological
process that is essential for life. It is involved in
growth, repair, reproduction, genetic diversity,
and disease prevention.
IV.
EVALUATION
Modified true or false
Direction : Write true if the statement is correct . If false change the Italic word to make the
statement correct .
1. Division of the nucleus is called karyokinesis while division of cytoplasm is called cytokinesis .
2. Mitosis is a type of cell division where multicellular organisms undergo growth and development
and when they repair damaged tissues .
3. Division of the cytoplasm is called karyokinesis while division of nucleus is called cytokinesis.
4. At the end of G2 Stage , each chromosomes is made up of two sister chromatid attached at the
centomere .
5. During S-phase , the cell is still young and it undergoes rapid growth , organelles are formed and
proteins are produced .
V.
Assignment
Follow-up
What do you think will happen if an organisms doesn’t able to continue its cell cycle ?
Advanced
Research and read the following .
1. Two types of cell division
2. Stages of each cell division
3. Compare mitosis and meiosis, and their role in the cell division cycle.