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# Congruent and Similar Triangles - Card Sort Activity

Subject
Resource Type
Common Core Standards
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PDF (Acrobat) Document File

515 KB|6 pages
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Product Description
Practice identifying congruent and similar triangles using theorems with this quick prep card sort.

I love card sorts, but I also understand most of us teachers do not have time to prepare them or to put them to use in class. I have designed this card sort to save prep time and class time.

In this activity, each student or student pair begins by sketching triangles based on descriptions. Because they are sketches, students will not be able to rely on finding triangles that just "look alike" and call them congruent or similar. Students then match congruent triangles and similar triangles. They also state the theorems that support their decisions.

Common Core Standards:
CCSS.Math.Content.HSG.CO.B.7
Use the definition of congruence in terms of rigid motions to show that two triangles are congruent if and only if corresponding pairs of sides and corresponding pairs of angles are congruent.
CCSS.Math.Content.HSG.CO.B.8
Explain how the criteria for triangle congruence (ASA, SAS, and SSS) follow from the definition of congruence in terms of rigid motions.
CCSS.Math.Content.HSG.SRT.A.3
Use the properties of similarity transformations to establish the AA criterion for two triangles to be similar.

Thank you for your interest in this resource from Rise over Run.

Related Resources:
Congruent Triangles Notes and Powerpoint
Similar Triangles Guided Notes
Total Pages
6 pages
Included
Teaching Duration
1 hour
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