1) The lesson plan aims to teach students about visualizing the area of rectangles through drawing squares to represent rectangular areas on a farm. 2) The teacher will motivate students by discussing farms and their features, then present sample rectangular shapes like a pig pen to estimate the number of squares needed to cover the surface area. 3) Students will practice calculating areas of different rectangles by counting squares, folding paper into rectangles, and connecting dotted papers to form shapes with given areas. They will learn to determine a rectangle's area by multiplying its length and width.

1. A Detailed Lesson Plan in Mathematics 3
I – Objectives
At the end of the class discussion, the students are expected to;
a) Visualize the area of rectangles
b) Appreciate the things in a farm
c) Draw a square that represents an area.
II – Subject Matter
Topic: Visualizing the area of rectangles
Showing the area of rectangles
Reference: BEC PELC III C – 1.1
Materials: powerpoint presentation
Value Focus: sportsmanship / cooperation
III – Procedure
Teacher’s Activity
A.) Preparatory activities
1.) Review / Drill
a) How many sides are there in
a square?
What can you say about its
sides?
b.)
How many square units are there
In the figure?
2.) Motivation
Have you been to a farm?
What are the things that you
can see in a farm?
(Show a picture of a farm)
B.) Developmental Activities
 Present a short story
“Farmer Jhon wanted to
build a pig pen in his farm
for his pigs.”
(Show a rectangular shape
of a pig pen)
In this figure, how many
squares do you think
would cover the surface?
Pupil’s Activity
There are four sides ma’am
There sides are all equal
There are four square units.
Yes, teacher
Animals and trees teacher
Many square teacher

2.  Present a sample shape of
rectangle for pig pen
 Show this figure
How many square units
did we use to cover the
figure?
Which is longer, square
units in rows or in
columns?
What is now the other
name for square units that
belong in the column?
How about the row?
Which has more square
units, the length or the
width?
How many square units
are there in this figure?
How many square units
are there in the length in
this figure? Width?
3.) Guided Practice
a.) Paper folding. Provide the
students with rectangular
sheets.
How many square units
did you form?
How many square units
are there in the length of
the paper? Width?
Which is longer, the length
or the width?
b.) Present rectangles with
different square units.
Many square teacher
Square units in row
Length teacher
Width teacher
The width teacher
There are 28 square units
7 square units in the row
4 square units in the
column

3. 1.)
2.)
3.)
Ask these following
questions to every
example figure.
How many square units
are there in figure 1? 2?
3?
How many square units
are there in length?
Width?
c.) Paper Dot
 Divide the class into four
groups. Provide the dotted
paper.
Connect the dots and form
rectangles with an area of
a. 20
b. 15
c. 28
d. 16
e. 32
4.) Generalization
How will you know the
number of square units
of a figure?
C.) Application
a. In a clean sheet of paper.
Draw the figure being
described.
8, 3, 12
Length: 2, 3, 2
Width: 4, 1, 6
By counting the number of
square units inside the
figure

4. 1. A rectangular board – 5
square units long and 2
square units wide.
2. A table that measures
3 square units wide
and 4 square units
long.
3. Draw the square units
of a rectangular tiled
floor with 18 square
units.
4. A bed that measure 5
square units and 3
square units.
5. A blackboard which is
6 square units and 5
square units.
c d
a b
e
f
A = ______ square units
B = ______ square units
C = ______ square units
D = ______ square units
E = ______ square units
F = ______ square units
IV – Evaluation
Answer the following in a sheet of
paper.
1.) How many square units are in the
figure?

5. ________ Square units
2.) What is the area of rectangle?
________ Square units
3.) Father has a garden. Its area is
10 square units. Draw the square
units.
5
4.) 12 square units
5.) 20 square units
V – Assignment
Draw rectangles with the
following square units. Write it on your
notebook.
1.) 15 square units
2.) 48 square units
3.) 12 square units
4.) 21 square units
5.) 28 square units.
Prepared by:
KRISTEL JOY A. DELA PEÑA
TEACHER APPLICANT
2