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# Reflections 2

Lesson 5 of 18

## Objective: SWBAT understand reflection across any horizontal or vertical line.

#### Warm Up

*10 min*

Each day, students complete a warm-up that usually consists of spiraling the previous day's material, in addition to older material. Warm-up problems also sometimes extend lessons that students have encountered before to more unfamiliar contexts.

For a video narrative about how I structure each lesson, and how the warm-up fits in, click here.

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#### Huddle

*10 min*

I like to review Problem #3 during the huddle, to shine a light on what happens when the line of reflection actually cuts through the shape to be reflected. What does this look like with the Geomirror? Basically, it flips it around, but if you very precisely apply the idea of equal distance from the line of reflection, it yields the shape. It's a pretty cool demonstration of how applying the properties here yields a precise reflection.

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#### Homework

*15 min*

Homework is to be completed at home and should take students approximately 15 minutes.

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- UNIT 1: FLUENCIES AND THE LANGUAGE OF ALGEBRA
- UNIT 2: SOLVING LINEAR EQUATIONS
- UNIT 3: INTRODUCTION TO FUNCTIONS
- UNIT 4: INTERPRETING AND COMPARING LINEAR FUNCTIONS
- UNIT 5: SYSTEMS OF LINEAR EQUATIONS
- UNIT 6: EXPONENTS AND SCIENTIFIC NOTATION
- UNIT 7: PARALLEL LINES, TRANSVERSALS, AND TRIANGLES
- UNIT 8: CONGRUENCE AND SIMILARITY THROUGH TRANSFORMATIONS
- UNIT 9: PATTERNS OF ASSOCIATION IN BIVARIATE DATA
- UNIT 10: SLOPE REVISITED
- UNIT 11: VOLUME OF CYLINDERS, CONES, AND SPHERES
- UNIT 12: POLYNOMIALS AND FACTORING
- UNIT 13: QUADRATIC FUNCTIONS

- LESSON 1: Introduction to congruence and similarity through transformations
- LESSON 2: Translations 1
- LESSON 3: Translations 2
- LESSON 4: Reflections 1
- LESSON 5: Reflections 2
- LESSON 6: Reflections 3
- LESSON 7: Rotations 1
- LESSON 8: Rotations 2
- LESSON 9: Mixed Review - Transformations
- LESSON 10: Congruence and Similarity Through Transformations Test 1
- LESSON 11: Dilations 1
- LESSON 12: Dilations 2
- LESSON 13: Similarity 1
- LESSON 14: Similarity 2
- LESSON 15: Series of Transformations that Lead to Congruence
- LESSON 16: Series of Transformations that Lead to Similarity
- LESSON 17: Mixed Review - Transformations
- LESSON 18: Congruence and Similarity Through Transformations Unit Test