Math Practice 7

Look for and Make Use of Structure

MACC.1.MD.1.1MACC.1.MD.1.2

Mrs. Jones’ class visited the Museum of Discovery and Science. They saw an inchworm, earthworm, and caterpillar. The caterpillar was 7 cubes long. The

inchworm was 3 cubes long. The earthworm was shorter than caterpillar but longer than the inchworm. About how

many cubes long could it be?

The caterpillar was 7 cubes long.

The inchworm was 3 cubes long.

7

3

3

The earthworm was shorter than the caterpillar but longer than the inchworm. About how many cubes long could it be?

7

Answers range between 4 and 6 cubes long. Students should be able to relate this information back to their work with the number line and

connecting cubes.