Mathematics Fractions Representational 10–11 yrs

Area with Fractions

分数面积

Description

Find the area of a rectangle with fractional side lengths by tiling with unit-fraction squares; show that the area equals the product of the side lengths

Mastery Evidence

✓ Tile a 2/3 × 3/4 rectangle with 1/12 squares and count to find area = 6/12 = 1/2
✓ Explain why the number of unit-fraction tiles equals the product of the two fractions
✓ Calculate the area of a rectangle with sides 1 1/2 and 2/3 using fraction multiplication

Assessment Prompt

If a piece of fabric is 2/3 m long and 3/4 m wide, can your child work out its area — and explain how tiling it with tiny fraction-squares shows the same answer as multiplying?