Reflection: Developing a Conceptual Understanding Partitioning squares to create triangles - Section 3: Guided Practice

 

During this lesson, I want my students to develop a conceptual understanding of how to divide a square into equal triangles.  Cutting out and pasting the triangles allows students to concretely see how they can divide their squares.  When it comes time to divide a square using lines they can remember when they cut and pasted.  For several of my struggling students, this activity also presented a nice way to demonstrate the difference between dividing the square equally and not dividing the square equally since they were able to literally compare the triangles they had cut and check to see that they were the same size. 

 

  Building a Conceptual Understanding of Partitioning Squares
  Developing a Conceptual Understanding: Building a Conceptual Understanding of Partitioning Squares
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Partitioning squares to create triangles

Unit 9: Partitioning Shapes
Lesson 3 of 8

Objective: SWBAT partition squares into same-size triangles.

Big Idea: Students learn about equal shapes and then explore dividing squares to make equal triangles.

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Subject(s):
Math, Geometry, shapes
  45 minutes
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York, ME
Environment: Suburban
Beth McKenna
 
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