Complement the class by identifying pairs of angles. With a vocabulary lesson, pupils learn the names and definitions of special angle pairs including adjacent, vertical, complementary, supplementary, and linear pairs. Using the definition, scholars find the measures of angles in diagrams.

Concepts

vertical angles, adjacent angles, complementary angles, supplementary angles, angles, straight angles

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Instructional Ideas

• Lead a discussion on what students should assume from a diagram and what they cannot

Classroom Considerations

• Fifth installment in a Tools for Geometry unit with six parts
• Requires knowledge of solving linear equations

• This video is hosted on YouTube

Pros

• Provides an organizational strategy to take notes
• Shows the steps needed to solve the problems

Cons

• None

Common Core

SL.9-10.2 SL.11-12.2 MP3 MP6 HSG-CO.C.9