Take time to tackle triangles. Scholars watch a video that first reviews the types of triangles. They then investigate the Isosceles Triangle Theorem and see how to apply it to solve problems. At the end, individuals also learn how to identify the corresponding parts of congruent triangles.

Concepts

triangles, acute triangles, obtuse triangles, right triangles, equilateral triangles, isosceles triangles, scalene triangles, theorems, congruence

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Instructional Ideas

• Use the corrective assignment as homework
  

Classroom Considerations

• This is the first of five installments in the Geometry - Triangle Congruence unit
• Pupils should already know the definitions and notations for basic geometric objects, such as angles and line segments
  

• This video is hosted on YouTube

Pros

• Includes a printable worksheet
• Provides a separate answer key for instructors
  

Cons

• None

Common Core

HSG-CO.B.7 HSG-CO.C.10