Teacher resources and professional development across the curriculum

Teacher professional development and classroom resources across the curriculum

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Part B

Exploring Connections
  Introduction | Try It Yourself: Area and Perimeter | The Products Game | Problem Reflection | Your Journal


At an after-school center, students play a strategy game that also provides practice with two-digit multiplication. Try the game yourself and consider our questions, noticing the connections between any ideas that come to your mind.

Take four number cards from a deck of zero to nine cards. Make up a two-digit multiplication problem as shown on the game board below. Your goal is to find the highest possible product.

Game Board

Variation 1: Play for the lowest possible product.

Variation 2: Allow the use of a one-digit number and a three-digit number.

Here's a possible turn:

4 Cards

Using those cards, answer the following questions:

  • What problem do you want to make?
  • What is your product?
  • Why do you think your product is the largest possible product?
  • Compare your problem to our examples. Which one of our problems do you think will have a higher product? Look for clues as to what helps a product be very high.
4 Game Boards

Questions to Consider:
  • Was your product higher or lower than our examples?
  • Were you surprised by the results?
  • Why isn't the product of 97 and 86 the largest product?

In your mind, make up two word problems that go with your two-digit numbers. Have one involve area and the other involve something else.

Next  Reflect on The Products Game

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