Double Number Line for Modeling

Prepare a Presentation

Work Time

Prepare a Presentation

Explain how you made a set of stars and triangles that has the same ratio of stars to triangles as the ratio in the given diagram.

Show how you made a double number line that represents equivalent ratios of stars to triangles.

Suppose you find the difference between the number of stars and triangles in the original set. Explain why making a set of stars and triangles with the same difference will not result in sets with equivalent ratios.

Challenge Problem

Find the difference between each pair of aligned numbers on your double number line.

  • What do you observe about the differences?