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This SSS and SAS instructional video also includes:
Why use six corresponding parts when three will suffice? The second of five lessons in the Geometry - Triangle Congruence unit focuses on the SSS and SAS triangle congruence criteria. By watching a video, scholars learn how to identify when SSS and SAS apply and how to use them in congruence proofs. They also see why AAA does not prove congruence.
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CCSS:
Adaptable
Concepts
Instructional Ideas
- Use the resource with pupils struggling with the SSS or SAS congruence theorems
Classroom Considerations
- Learners should be familiar with triangle congruence from the previous lesson
- Prior experience with two-column proofs is necessary
- Note that the video does not cover congruence in terms of rigid motions
- This video is hosted on YouTube
Pros
- Worksheets include the examples from the video to help individuals take notes
- Provides a corrective assignment for additional practice
Cons
- None