04/19/23 1

AREA OF SQUARES AND RECTANGLES

WELCOME

MR. J. AREVALO

5TH GRADE TEACHER

DOOL SCHOOL CALEXICO

04/19/23 2

Introduction

These slides are to inform you how important it is for students to be able to read and use formulas.

04/19/23 3

Allow students to practice finding the area of squares and rectangles.

CUS

04/19/23 4

Topics of Discussion

The two main ideas to teach are: A. Formula for finding area of a

Square.

Formula for finding the area of a rectangle

04/19/23 5

Topic One

This topic is to teach children how to find the area of a square and rectangle.

Children need to know how to read formulas for finding answers on mathematical problems.

All should know how to calculate these formulas.

04/19/23 6

020406080

100120

ZA

IRY

JUA

N

KA

RL

A

LE

SL

Y

JOS

E

EM

MA

NU

EL

VA

NE

SS

A

PRE TEST

POST-TEST

COMPARING PRE AND POST TESTS

04/19/23 7

Topic Two

The area of a square or a rectangle is found by multiplying the length by the height.

Area =lxh

Area = l x h

5

5

3

12

Now we can figure out how much it’s going to cost us to put a new rug in our house. We just have to figure out the square footage, and how much a square foot.

04/19/23 8

DETAILS

AREA OF A SQUARE IS EQUAL TO HEIGHT TIMES LENGTH.

AREA OF A RECTANGLE IS EQUAL TO HEIGHT TIMES LENGTH.

EXAMPLE

2

2

AREA = 2 X 2=4

1

5

AREA=5 X 1=5

04/19/23 9

Real Life

If you have a trailer that measures 5 feet wide by 12 feet long, how much ply wood will you need to plank it?

04/19/23 10

What This Means

It is important for all children to be able to use formulas in real life situations.

• All students should memorize the formula for finding the area.

• All students should have had the opportunity to work out several problems.

04/19/23 11

SUMMARY

Children need plenty of examples to learn.

Children need to work in teams. Children need visuals. Children need real life situations to

be meaningful.