Area and

PerimeterThird Grade

Day 1

How Big is a

Foot?

How big is a foot?

How Big is a Foot?

http://www.youtube.com/watch?v=bWhWL1MET7A

What was the apprentice’s idea?

Build the Bed• Reflect on what the

apprentice was thinking.• Can we act this out?• Build the bed using

the apprentice’s foot.

Build the Bed...Again• Cut out the King’s

foot.• Build the bed

again using the King’s foot!• Build it right next

to the other bed.

Reflect• Why is one bed

larger than the other?• Didn’t we use the

same number of feet to make both beds?• Turn & Talk, then

write a reflection.

Day 2

How big is the King’s foot?• We will

measure the King’s foot from the top of the big toe to the back of the heel.

Floor Tiles• Look at our classroom floor.• Each square on the floor is a tile.• We are going to give you a paper floor tile

that will serve as a model.

Tile Observation• Observe everything

you can about the your tile.• Discuss your

observations.• Record your

observations in your math notebook.

Math Congress

Floor Tile Observations

Day 3

How much space does the bed cover?

• Use your tiles go determine how much space the bed covers.

Two ways to record square feet

• There are two ways to record square feet. • Write these in your math

journals.

18 sq ft OR 18 ft 2

What is Area?• Area is the

amount of space a shape takes up.• Record the

definition of area in your math journals.

Estimating Area• You are going to estimate the area of

several shapes round our school.• Remember, an estimate tells us “about”

how many.• You will estimate the area of each shape in

square feet, using your color tiles as a tool.

Scavenger Hunt – Inside1. Rectangular shape in

hall

2. Tile design in hall

3. Glass Window in hall

4. Bottom part of bathroom wall

Scavenger Hunt continued…5. Exterior Door Window Pane

6. Water Fountain Rug

7. Black Millionaire poster

8. Front Side of Book Cabinet

Estimating Area – Recording Sheet

Day 4

Small Tile Observation• Observe everything

you can about the your tile.• Discuss your

observations.• Record your

observations in your math notebook.

Color Tiles• What is the area of

one floor tile in square inches?

• Work in your group to determine how many square inches are in one floor tile.

• With a partner in your group, create a poster to explain how you found the area of the tile.

Day 5

After test Only complete the area column

Day 6 - Finding Area in Square Inches

1Len

gth

Width

Day 7 – Area in Square Centimeters

5

8

Day 8 – How Long? How Many?

2x3=64x5=20

Day 9 – Test & Activity

Day 10 -