Check That Digit

This Check That Digit lesson plan also includes:

New Review

Charge it! Young scholars learn the mathematics associated with UPC codes, credit card numbers, and ISBN numbers. They apply algorithms and algebraic equations to verify the validity of these codes.

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CCSS: Designed
Instructional Ideas

  • Incorporate as an application of algebraic equations
  • Invite a local banker to speak about credit card algorithms
Classroom Considerations

  • Allow time to collect necessary materials

  • Includes historical information
  • Provides visuals to incorporate as examples

  • None
Common Core