5th Grade · Number & Operations—Fractions
Area Model
5.NF.B.4b
Definition
A rectangle diagram that shows multiplication as area, with the factors as its side lengths.
Examples
- For 2/3 x 3/4, a rectangle split into 3 columns and 4 rows shows an overlap of 6 of 12 parts.
- For 24 x 13, a rectangle split by place value shows partial-product regions that add to 312.
Key rule
The overlapping region of the rectangle represents the product.
Memory hook
Multiplication drawn as the area of a rectangle.