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150_G4U21_G4U28˙—» ¿º 2011.3.23 5:9 PM ˘ ` 42 PDF_In 2540DPI 150LPI T
Activity 1 Square Unit
Learn how to estimate the area of a figure using a square unit.
Area is the number of square units needed to cover a figure without any
overlapping. A square unit (sq un) is a square that is 1 unit long and 1 unit wide.
Count the number of centimeter squares in the rectangle below.
1 cm
1 cm
The area is 21 square centimeters.
1 . Estimate the area of each figure. Each unit is 1 square centimeter.
a. b. c.
12 sq cm sq cm sq cm
d. e. f.
6 full squares
cover the
blue parts.
sq cm sq cm sq cm
42
Activity 1 Square Unit
Learn how to estimate the area of a figure using a square unit.
Area is the number of square units needed to cover a figure without any
overlapping. A square unit (sq un) is a square that is 1 unit long and 1 unit wide.
Count the number of centimeter squares in the rectangle below.
1 cm
1 cm
The area is 21 square centimeters.
1 . Estimate the area of each figure. Each unit is 1 square centimeter.
a. b. c.
12 sq cm sq cm sq cm
d. e. f.
6 full squares
cover the
blue parts.
sq cm sq cm sq cm
42
