Given two congruent triangles, the resource provides the definition of congruent triangles and marks the corresponding parts. The portion of a basic geometry playlist shows the triangles are congruent by moving one on top of the other and briefly talks about similarity.

Concepts

congruent triangles, congruence, similar triangles, size, shapes, corresponding angles, corresponding sides

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Additional Tags

math

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Instructional Ideas

• Provide a mini-lesson on how to write the congruence statement for triangles
• Find the necessary transformation to show two triangles are congruent

Classroom Considerations

• The class should understand the use of hashes to mark congruence

• This video is hosted on YouTube

Pros

• Links to other CK-12 resource on congruent triangles
• Works through a few problems dealing with congruent triangles

Cons

• None

Common Core

8.G.A.2 HSG-CO.B.7 MP3 MP6