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This Construct a 90 Degree Angle instructional video also includes:
There is more than one way to create a 90-degree angle. Using a compass and a straightedge, the video shows two ways to construct a right angle. The ways include using perpendicular bisectors and circle theorems. To wrap up, pupils practice their constructions as well as construct other angle sizes in the practice sheets.
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CCSS:
Adaptable
Concepts
Additional Tags
Instructional Ideas
- Show how to make constructions using other tools
Classroom Considerations
- Individuals should have a compass and straightedge
- Assumes the class understands theorems about inscribed angles in circles
Pros
- Answer key shows construction lines
- Contains an embedded video file for teachers to download
Cons
- None