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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 -
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