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Grade 3 Math · World 8: Area and Perimeter Park · Level 71
Square Units
Measure area in square units.
Warm-up, learn, try it together, practice, then a quick check. About 15 minutes.
What children learn in Level 71
- Area squares come in standard sizes. A square that is 1 inch on each side covers 1 square inch.
- A square 1 foot on each side covers 1 square foot. And 1 centimeter on each side makes 1 square centimeter.
- This sticker is covered by 6 squares. Each is 1 square centimeter, so its area is 6 square centimeters.
- These two tables are the same size. Big tiles: 6 of them. Small tiles: 24! Bigger squares means fewer squares.
- Pick small squares for small things, like a stamp, and big squares for big things, like a floor.
Georgia's K-12 Mathematics Standards:
- 3.GSR.7.1 — Investigate area by covering the space of rectangles presented in realistic situations using multiple copies of the same unit, with no gaps or overlaps, and determine the total area (total number of units that covered the space).
- 3.GSR.7.2 — Determine the area of rectangles (or shapes composed of rectangles) presented in relevant problems by tiling and counting.