Miss Kashef here — let's explore Perimeter and Area together!
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Perimeter and Area
Hello my curious Grade 3 friends! Today Miss Kashef will teach you about Perimeter (the distance around a shape) and Area (the space inside a shape). We will use lots of pictures, examples, and practice. You will become measurement experts!
What is Perimeter?
Perimeter is the total distance around the outside of a shape.
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Add all the sides!
Perimeter Examples
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Square: 4 sides of 5 cm
Perimeter = 20 cm
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Rectangle: 6 cm + 4 cm
Perimeter = 20 cm
What is Area?
Area is the amount of space inside a shape. We measure it in square units.
Area = 6 square units
Perimeter vs Area
Perimeter
The fence around the garden
Add all sides
Area
The grass inside the garden
Count the squares
Practice Perimeter
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Each side 8 cm
Perimeter = 32 cm
Lengths: 10 cm and 6 cm
Perimeter = 32 cm
Practice Area
Area = 8 square units
Real Life Examples
Fence around a playground = Perimeter
How much carpet for a room = Area
Ribbon around a gift box = Perimeter
Paint needed for a wall = Area
You Are Doing Amazing!
Perimeter = distance around the shape
Area = space inside the shape
You now understand both very well!
Well Done, My Smart Measurers! 🌟
You have completed the full lesson on Perimeter and Area.