Double Number Lines

Make Connections

Performance Task

Ways of Thinking: Make Connections

Take notes about how your classmates used the double number line to solve the problems and how they compared the double number line to the tape diagram.

As your classmates present, ask questions such as:

  • Can you explain the meaning of the pairs of numbers that line up on the double number line?
  • How did you make the double number line for the salad dressing recipe?
  • Do you think it’s easier to use a double number line or a tape diagram to solve ratio problems?