Workbook

Geometry: Transformations, Congruence, and Similarity

Curated and Reviewed by Lesson Planet

Rigid motions are to congruence as what are to similarity? Investigate properties of rigid motions and define congruence in terms of rigid motions with the ninth chapter of a 10-part eighth grade workbook series. The lesson then prompts learners to investigate dilations and to define similarity in terms of similarity transformations.

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CCSS: Designed
Additional Tags
Instructional Ideas
  • Use the resource to plan a unit on congruence and similarity transformations
  • Have learners create charts to keep track of properties for each transformation
Classroom Considerations
  • Learners should already be familiar with coordinate points, writing equations of lines, and dilations
Pros
  • Graphs are well drawn and look professional
  • Learners investigate properties of transformations rather than simply hear them from the teacher
Cons
  • Unlike other chapters in the series, the table of contents does not include links to directly access lessons