Rigid Transformations and Congruence
Grades: 8th Grade

Overview
- 8.1 Unit Overview
Pre-Unit
- 8.1 Pre-Unit Check
Sub-Unit 1: Rigid Transformations
Students learn to visualize, describe, and perform translations, rotations, and reflections on a grid.
- Transformers
- Spinning, Flipping, Sliding
- Transformation Targets
- Moving Day
- Getting Coordinated, Part 1
- Getting Coordinated, Part 2
- 8.1 Practice Day 1
- 8.1 Sub-Unit Quiz
Sub-Unit 2: Congruence
Students learn and use the word congruent and come to understand how congruent figures are related to rigid transformations. This builds on work students did in Grade 7 sketching geometric shapes given specific conditions.
- Are They the Same?
- Are They Congruent?
Sub-Unit 3: Angle Relationships
Students use transformations to discover new angle relationships. This builds on students’ work with supplementary, complementary, vertical, and adjacent angles from Grade 7.
- Transforming Angles
- Tearing It Up
- Puzzling It Out
- Tessellate
- 8.1 Practice Day 2
End-Unit
Resources
- 8.1 Additional Practice
- 8.1 Show What You Knows
Differentiation and Personalized Learning
- 8.1 Differentiation and Personalized Learning