Defining Rate Discussion

Identify Rates

Work Time

Identify Rates

Look at the situations cards and sort them into the following categories:

  • Situations that describe rates
  • Situations that do not describe rates
  • Situations in which you are not sure whether or not it describes rates

HANDOUT: Card Sort


  • Sort the cards into the appropriate categories.
  • For each situation, explain your thinking to your partner.
  • If a situation describes a rate, check it against your definition.
  • If the situation does not describe a rate or if it is not possible to tell, explain why not.
  • Use your definition of rate to help you decide whether or not each situation describes a rate. If your definition is not helpful, revise your definition.