# Similar Shapes

Thank you to the BWA for collaboratively planning and preparing these lessons.

Lesson 1

Learning Objective: to be able to identify if two triangles are congruent

Worksheet

Congruent Triangles PPT

Lesson 2

Learning Objective: to be able to prove if two triangles are congruent

Proving Congruence PPT

Lesson 2 – Proving Congruence – Task 2

Lesson 2 – Proving Congruence – Task 3

Lesson 3

Learning Objective: to be able to identify if two triangles are similar

Lesson 3 – Intelligent Practice Worksheet

Lesson 3 – Similar Triangles Matching Activity

Lesson 3 – Similarity PPT

Lesson 4

Learning Objective: to understand and use scale factor.

Lesson 4 – Scale Factors PPT

Lesson 5

Learning Objective: to be able to use similarity to work out missing lengths and solve associated problems.

Lesson 5 – Intelligent Practice Worksheet

Lesson 5 – Similarity in Context – Task 2 – Exam Questions

Lesson 5 – Similarity in Context PPT

Lesson 6

Learning Objective: to understand and use area scale factor.

Lesson 6 – Area Scale Factor PPT

Lesson 7

Learning Objective: to be able to understand and use volume scale factor.

Lesson 7 – Volume Scale Factor PPT

Lesson 8

Learning Objective: to be able to use scale factors in all three dimensions.

Lesson 8 – Converting Scale Factors PPT

Lesson 9

Learning Objective: to be able to solve a variety of problems using similarity in all three dimensions

Lesson 9 – Similar Complex Objects PPT