Grades 3-5 Math Problem Solving in Action_ Getting Students to Love Word Problems

Modeling Thinking ◆ 115

different parts (see Figures 7.9 and 7.10). The corn will have the largest part.
The green beans will be planted in the second largest area. The carrots will cover
the third-largest area and the potatoes will be in the smallest area. Show what
her garden will look like? What is the total area of her garden? Have the stu-
dents sketch out the place value block representation and explain it.

Figure 7.8

Figure 7.9

10 + 2

10

+

1

Corn Green Beans

10 × 10 10 × 2

100 sq. ft. 20 sq. ft.

Carrots

1 × 10 = 10 sq. ft.

1 × 2 = 2 sq.

ft. potatoes

Figure 7.10

+ 10

10 + 2

10 × 10 =

100 sq. ft.

10 × 2 =20 sq. ft.

(^1) 1 × 10 = 10 sq. ft. 1 × 2 = 2 sq. ft.