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Grade 3 (ages 8 to 9) · Math

Area and perimeter

Covering with unit squares, the length times width rule, distance around, and keeping the two ideas apart

About four to five lessons of 45 to 60 minutes

Chalk illustration of a rectangle with honey-gold edge tracing and pale chalk unit squares inside.
Area versus perimeter: A visual opener for separating distance around from space inside.
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