Resources and Tools for Elementary Math Specialists and Teachers
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Circles and Pi

This unit of instruction intended for K-8 teachers explores the measures circumference and area of a circle. Learners are given interactive tasks that develop the concept of pi and the rationales for and the applications of the formulas. The unit ends with a practical problem set. Video instruction, hints, and solutions for the exercises are available. Teacher notes are provided.
Contributed by: Annenberg Foundation, Publisher
Math TopicGeometry, Measurement, Number Sense, Number Concepts, Mathematical Practices, Mathematical Processes
Grade Level5, 6+
Resource TypeActivity, Interactive Media, Unit of Instruction

  • Additional Information
    • AudienceEducator
    • LanguageEnglish (USA)
    • Education Topic
    • Interdisciplinary Connection
    • Professional DevelopmentYes
    • ContributorAnnenberg Foundation, Publisher
    • Publication Date2011
    • Rights(c) 2001 - 2003 WGBH Educational Foundation
    • AccessFree access
  • Standards
    • Common Core State Standards for Mathematics

      Select a standards document: