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Seeing Double


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    NCTM Illuminations

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Seeing Double

In this math meets physics lesson, learners encounter the magical effect of reflection as they use a mirror to visually experience the concept of doubling quantities. This experience focuses learners' attention to using doubles as a strategy to make number operations easier, specifically addition. The book "Two of Everything" by Lily Toy Hong is used to introduce learners to these concepts. A game is used for discovery and practice and writing is used as closure to this lesson. This lesson guide includes questions for learners, assessment options, extensions, and reflection questions.

Quick Guide


Preparation Time:
Under 5 minutes

Learning Time:
45 to 60 minutes

Estimated Materials Cost:
1 cent - $1 per group of students

Age Range:
Ages 4 - 8

Resource Types:
Activity, Game, Lesson/Lesson Plan

Language:
English

Materials List (per group of students)


Subjects


  • Mathematics
    • Algebra
      • Equations and Inequalities
    • Data Analysis and Probability
      • Data Collection
      • Data Representation
    • Number and Operations
    • Problem Solving
    • Reasoning and Proof
    • Representation
  • Physical Sciences
    • Light and Optics
      • Lenses and Mirrors
      • Reflection and Refraction

Informal Categories


  • Games
  • Literature

Audience


To use this activity, learners need to:

  • see
  • touch

Learning styles supported:

  • Links STEM to other topics of interest such as arts and humanities
  • Involves hands-on or lab activities

Other


Includes alignment to state and/or national standards

Common Core State Standards for Mathematics:

Includes assesments for student learning

Access Rights:

  • Free access

By:

  • Piecora, Jamie

Rights:

  • All Rights Reserved, National Council of Teachers of Mathematics, ©2010

Funding Source:

  • Thinkfinity/Verizon Foundation

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