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This Proofs: Angle Pairs and Segments—The Three Angle Problem interactive also includes:
Finding the sum of the measures of three angles is easy, unless you have no clue what the measures are. Learners use an interactive diagram to see a geometric problem in a different way. A set of challenge questions takes them through the process of a proof to show that three given angles have a sum of 90 degrees.
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Instructional Ideas
- Provide cloze notes for pupils to fill in as they complete the interactive
Classroom Considerations
- Access to the interactive requires a free CK-12 account
- Scholars should be able to identify alternate interior angles
Pros
- Includes an embedded video that explains the topic
- Color coding helps distinguish angles
Cons
- None