Using Variables to Represent Measurements

Make a Train

Work Time

Make a Train

  • Use the interactive to make a train that has at least 8 cars.
  • Write an expression to represent the train. Write the expression again in a different form.
  • Make several other trains, and write expressions for them.
  • Give one of your expressions to your partner, and challenge your partner to create the corresponding train.

INTERACTIVE: Creating Trains


For each car that you put in your train, add a letter to your expression that represents the length of the car.

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