Double Number Line for Modeling

Make Connections

Performance Task

Ways of Thinking: Make Connections

Take notes about your classmates' strategies for making sets of stars and triangles and for representing equivalent ratios on a double number line.

As your classmates present, ask questions such as:

  • What is the ratio in your diagram?
  • Why is this ratio equivalent to the ratio in the given diagram?
  • How do you know that the ratios on your double number line are equivalent?
  • Can you give an example of sets of stars and triangles that have the same difference but not equivalent ratios?