LESSON PLAN IN SCIENCE IV
TOPIC
Effects Of Force On The Size Of An Object
GRADE LEVEL
IV
TIME ALLOTMENT
50 minutes
DATE AND TIME
October 5,2019
LEARNING COMPETENCIES:
Content Standard: Demonstrates understanding that force can change the size of an object.
Performance Standard: Uses different kinds of force to change the size of objects.
Learning competencies: Explain the effect/s of force on the size of objects. (S4FE-IIIa-1)
Unpacked/Specific Objectives:
a. To identify the effects of force on the size of an object,
b. To infer how force affects the size of an object,
c. To demonstrate how force can change the size of an object.
ENGAGE
A. Review
1. Ask: What happens to the shape of an object if force is applied on
it?
2. Say: I will show you a picture of objects. You have to write what
happened if force is applied to it.
Objects
Effect of Force Applied
1. Rubber band
2. Bottle cap
3. Biscuit
4. Egg shell
5. Cardboard
MATERIALS



Power point Presentation
Pictures
Garter
B. Motivation
a. Each student will measure the unstretched garter using a ruler
without stretching it.
b. Stretch the garter until it reaches its maximum length.
c. Compare the length of garter before and while it was being
stretch.
Ask:
 What you have discovered?
 What force was exerted?
 What would happen to the size of an object if force is
applied on it?
EXPLORE
C. Presentation
a. Ask: what did you apply to an object to change its size? What will
happen to size of an object if you apply force?
b. Each group will read their answer
c. (See Group Activity A)
1. Put out the assigned materials on the table.
2. Think of what you can do to change the size of each
material.
3. Perform the action that you have thought for each of the
material.
4. Record the actions you have done and their effects on the
materials in the table.
5. Be ready to present the data.
MATERIALS








Plastic Bottle
Sponge
Paper
Garter
Pencil
Rubrics for the Activity
Manila paper
Marker
EXPLAIN
D. Discussion
1. Presentation of output
2. The teacher will give feedbacks and recommendations.
3. Presentation of the lesson.
Ask:
a. How would you describe the size of the materials before force
was applied on them?
b. How would you describe the size of materials after force was
applied?
c. Which of the materials became bigger? Smaller?
d. What is the effect of force on the size of the materials?
MATERIALS
ELABORATE
E. Application
1. Group the pupils in three (3) groups.
(See Group Activity B)
MATERIALS




Power point Presentation
Power point Presentation
Worksheet
Rubrics for the Activity
F. Generalization
Ask:
a. What is the effect of force on size of an object?
b. What will happen when force is applied to an object?
EVALUATE
G. Evaluation
(See Activity sheet)
MATERIALS

Worksheet
H. Assignment
Direction: Read the situation and answer the given question in your
notebook.
Your uncle gave you a new dress that doesn’t fit you. What will
happen if you force yourself to wear the dress? Write your answer in
your notebook.
REFERENCES
Science Learner’s Material pp.174
www.google.com
Prepared by:
Liezel M. Canovas
NEUST, Practice Teacher
Group Activity A
Direction: Using the following materials allow them to check their answer by changing the size
of the materials.
(A)
Object
(B)
What I did to change the
shape of the object
MATERIAL
ACTION DONE
(C)
What changes took place
after I have applied force on
the object?
EFFECT OF FORCE APPLIED
Sponge
Cracker Biscuit
Pencil
Paper
Garter
Rubrics for Scoring:
Output ……………………………………………………………………………………. 30%
Participation …………………………………………………………………………… 20%
Behavior …………………………………………………………………………………. 20%
Presentation …………………………………………………………………………… 30%
TOTAL
100%
Group Activity B
Direction: Give at least three (3) examples of object based on the descriptions given in the
table. Assign two members of the group to explain your answer.
Objects that change when force applied
1.
2.
3.
Objects that retain in initial form after force
applied
1.
2.
3.
Rubrics for Scoring:
Output ……………………………………………………………………………………. 30%
Participation …………………………………………………………………………… 20%
Behavior …………………………………………………………………………………. 20%
Presentation …………………………………………………………………………… 30%
TOTAL
100%
Activity Sheet
Direction: Write TRUE if the statement is correct while False if not.
______ 1.
______ 2.
______ 3.
______ 4.
______ 5.
Dropping a flower vase won’t change its size.
When force is applied to an object, the size of an object may change.
Sharpening a pencil will make its size smaller.
Stretching the garter will make its size longer.
Cutting a piece of cardboard does not change its size.