Resources and Tools for Elementary Math Specialists and Teachers
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Shape Times Shape

This problem helps children become familiar with the idea of a symbol (in this case a shape) representing a number. Students also have an opportunity to see the multiplication properties of one and zero in a challenging puzzle. By studying the twelve multiplication equations which use eleven different colored shapes, students are to determine each shape's unique number value from a list of 0 to 12. The Teachers' Notes page offers rationale, suggestions for implementation, discussion questions, support with down loadable handouts and a link to an extension activity, What's It Worth? (cataloged separately).
Contributed by: Millennium Mathematics Project - Publisher, Rose Prentice - Initiator
Math TopicAlgebraic Thinking, Number Sense, Basic Operations, Number Concepts, Mathematical Practices, Mathematical Processes
Grade Level4, 5, 6+
Resource TypeActivity

  • Additional Information
    • AudienceLearner
    • LanguageEnglish (United Kingdom), Chinese, Dutch, French, German, Italian, Spanish
    • Education Topic
    • Interdisciplinary Connection
    • Professional DevelopmentNo
    • ContributorMillennium Mathematics Project - Publisher, Rose Prentice - Initiator
    • Publication Date2007-08
    • RightsCopyright (c) 2007 University of Cambridge
    • AccessFree access
  • Standards
    • Common Core State Standards for Mathematics

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  • Related Resources
  • User Comments
    • 5
      Ties lots together
      By Uncle Bob on 11/13/2012 - 14:34
    • This puzzle re-emphasizes the basic properties of multiplication, the zero and the unit, calls on deductive strategies and rewards the patient solver. It can also enhance the learning of divisibility rules.