## 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.

Print Lesson
4 teachers like this lesson
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

##### Similar Lessons

###### Practice with Protractors
Big Idea: In this direct instructional approach lesson, students practice using a protractor to measure various sized angles.
Favorites(4)
Resources(7)
Helena, MT
Environment: Suburban

###### Circles
Big Idea: Tying it together - literature and math. Thank you Sir Cumference and the Knights of the Round Table!
Favorites(1)
Resources(17)
Scottsdale, AZ
Environment: Urban