# Unit 1: Rigid transformations and congruence

## Lesson 3: Grid moves

### Learn

No videos or articles available in this lesson

### Practice

Rotate points (basic)Get 3 of 4 questions to level up!

## Lesson 5: Coordinate moves

### Practice

Translate pointsGet 3 of 4 questions to level up!
Translate shapesGet 3 of 4 questions to level up!
Reflect pointsGet 3 of 4 questions to level up!
Reflect shapesGet 3 of 4 questions to level up!

## Lesson 6: Describing transformations

### Practice

Determine translationsGet 3 of 4 questions to level up!
Determine rotations (basic)Get 3 of 4 questions to level up!
Determine reflectionsGet 3 of 4 questions to level up!
Mapping shapesGet 3 of 4 questions to level up!

## Lesson 7: No bending or stretching

### Practice

Find measures using rigid transformationsGet 3 of 4 questions to level up!

## Extra practice: Transformations

### Learn

No videos or articles available in this lesson

### Practice

Rigid transformations: preserved propertiesGet 3 of 4 questions to level up!

## Lesson 12: Congruent polygons

### Practice

Congruence & transformationsGet 3 of 4 questions to level up!

## Lesson 14: Alternate interior angles

### Practice

Angle relationships with parallel linesGet 5 of 7 questions to level up!

## Lesson 15: Adding the angles in a triangle

### Practice

Find angles in trianglesGet 5 of 7 questions to level up!
Find angles in isosceles trianglesGet 3 of 4 questions to level up!

## Lesson 16: Parallel lines and the angles in a triangle

### Practice

Finding angle measures using trianglesGet 5 of 7 questions to level up!