Similarity & Congruence - Complete Unit of Work

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Tom O'Toole Math Resources
Grade Levels
7th - 10th
Formats Included
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27 pages
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Tom O'Toole Math Resources
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In this unit students will learn about congruent and similar shapes. They will start by learning a definition of congruence and understanding the conditions under which triangles can be shown to be congruent, and then using this to solve angle problems. They will then go on to look at the definition of similar shapes, how to prove that two triangles are similar and the effect of the scale factor on the area and volume of similar shapes and solids.


This pack is designed to provide teachers with complete lesson plans and classroom resources to teach excellent lessons. It is designed to both teach the mathematical content and draw students into deeper consideration of its implications, including mathematical reasoning and problem solving skills.


4 Lesson Plans: Full ready-to-use lesson plans on the following topics:

- Congruent Triangles
- Congruence & Angle Problems
- Similar Shapes
- Area & Volume of Similar Shapes

Lesson Resources: A variety of additional resources to accompany the lesson plans, including student worksheets and aids for students needing extra support.

Homework Activity: Further problems to give students to complete at home.

Assessment: A series of questions to enable you to assess the progress of students in this unit of work.
Total Pages
27 pages
Answer Key
Teaching Duration
1 Week
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