The right measure is often hard to find. Given a diagram of two angles that make up a right angle and one of their measures, scholars learn how to find the other angle measure. They watch a video that explains the process and covers a few examples.

Concepts

right angles, complementary angles, addition angles

Show More Show Less

Additional Tags

math

Show More Show Less

Instructional Ideas

• Apply the video as part of an intervention strategy
  

Classroom Considerations

• Note that the video does not use the term complementary angles
  
• Learners should be familiar with the right angle mark
  

Pros

• Provides a worksheet with additional practice problems for pupils to attempt on their own
  

Cons

• Does not use equations, which most higher level courses likely require
  

Common Core

7.G.B.5