Creating a 60-degree angle also creates an equilateral triangle. By watching the video, individuals learn the steps required to construct a 60-degree angle. The presentation shows that the process is the same for constructing an equilateral triangle.

Concepts

geometric constructions, compasses, equilateral triangles, angles

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Additional Tags

math

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Instructional Ideas

• Use other tools to do constructions

Classroom Considerations

• Each pupil needs a straightedge and compass
• The worksheets include multiple constructions beyond equilateral triangles

Pros

• Practice questions provide space to create the constructions
• Includes closed captioning to help students follow along
  

Cons

• None

Common Core

SL.9-10.2 SL.11-12.2 HSG-CO.D.13 MP5 MP6