Teacher resources and professional development across the curriculum

Teacher professional development and classroom resources across the curriculum

Monthly Update sign up
Mailing List signup
Search
MENU
Learning Math Home
Measurement
 
Session 4 Part A Part B Part C Homework
 
Glossary
measurement Site Map
Session 4 Materials:
Notes
Solutions
Video

Measurement Session 4: Angle Measurement
 

In this session, we will investigate angle measurement. We will review appropriate notation and describe angles in terms of the amount of turn. Looking at angles in this way highlights the fact that angle measure is dynamic rather than static -- it changes as the amount of turn changes.

For information on required and/or optional materials for this session, see Note 1.

In This Session:

Part A:

Angle Definition

Part B:

Angles in Polygons

Part C:

Geo-Logo

Homework

 


 
Learning Objectives

In this session, you will do the following:

• 

Use the fact that there are 360 degrees in a complete turn to find the measures of angles in polygons

• 

Learn about the relationships between the angles within shapes

• 

Generalize a formula for finding the sum of the angles in any n-gon

• 

Use software to explore the differences between interior, exterior, and central angles

• 

Understand the relationships between turns, resulting angles, and the number of sides of a regular polygon


video icon

Throughout the session you will be prompted to view short video segments. In addition to these excerpts, you may choose to watch the full-length video of this session.

Keyterms

New in This Session:

 

 

acute angle
adjacent angles
central angle
complementary angles
congruent angles
exterior angle

interior (vertex) angle
irregular polygon
obtuse angle
polygon
regular polygon
right angle
supplementary angles

Next > Part A: Angle Definition

Learning Math Home | Measurement Home | Glossary | Map | ©

Session 4: Index | Notes | Solutions | Video

Home | Catalog | About Us | Search | Contact Us | Site Map

  • Follow The Annenberg Learner on Facebook

© Annenberg Foundation 2013. All rights reserved. Privacy Policy