Reflection: Developing a Conceptual Understanding Measuring Angles Inside Shapes - Section 3: Student Practice

While I was conferencing with this student, Measuring Angles, I realized that she needed a more concrete model to truly believe that there were two sets of congruent angles when measuring the inside angles.

So I asked her to cut out two of the angles to see if they matched up. Here's the amazing conference that resulted: Comparing Angles

We then shared this concrete model with the rest of the class!

Developing a Conceptual Understanding: Congruent Angles

Measuring Angles Inside Shapes

Unit 8: Geometry
Lesson 3 of 7

Big Idea: Students will take turns measuring and finding the sum of angles within a variety of shapes.

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Standards:
Subject(s):
Math, protractor, supplementary angles, angles, Triangles, angles (Constructions), quadrilateral, measuring angles, adding angles, Additive Property of Angles, complementary angles, Polygon, shapes, classifying triangles
100 minutes

Kara Nelson

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