# Contents

1. 1.1: Which One Doesn’t Belong: Diagrams
1. Are you ready for more?
2. Lesson 1 Summary
3. Glossary
4. Lesson 1 Practice Problems
1. 2.1: A Pair of Quadrilaterals
2. 2.2: How Did You Make That Move?
3. 2.3: Card Sort: Move
4. Lesson 2 Summary
5. Glossary
6. Lesson 2 Practice Problems
1. 3.1: Notice and Wonder: The Isometric Grid
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1. Are you ready for more?
2. Lesson 3 Summary
3. Glossary
4. Lesson 3 Practice Problems
1. 4.1: Translating Coordinates
2. 4.2: Reflecting Points on the Coordinate Plane
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3. Lesson 4 Summary
4. Glossary
5. Lesson 4 Practice Problems
1. 5.1: Finding a Center of Rotation
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2. Lesson 5 Summary
3. Lesson 5 Practice Problems
1. 6.1: Measuring Segments
2. 6.2: Sides and Angles
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3. Lesson 6 Summary
4. Glossary
5. Lesson 6 Practice Problems
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2. 7.3: A Pattern of Four Triangles
3. Lesson 7 Summary
4. Lesson 7 Practice Problems
1. 8.1: Line Moves
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2. 8.3: Let’s Do Some 180’s
3. Lesson 8 Summary
4. Glossary
5. Lesson 8 Practice Problems
1. 9.1: Angles of an Isosceles Triangle
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2. 9.3: Triangle Plus Two
3. 9.4: Triangle ONE Plus
4. Lesson 9 Summary
5. Lesson 9 Practice Problems
1. 10.1: Find the Right Hands
2. 10.2: Are They the Same?
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3. Lesson 10 Summary
4. Glossary
5. Lesson 10 Practice Problems
1. 11.1: Translated Images
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2. 11.3: Corresponding Points in Congruent Figures
3. Lesson 11 Summary
4. Glossary
5. Lesson 11 Practice Problems
1. 12.1: Angle Pairs
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2. 12.3: Alternate Interior Angles Are Congruent
3. 12.4: Info Gap: Angle Finding
4. Lesson 12 Summary
5. Glossary
6. Lesson 12 Practice Problems
1. 13.1: Can You Draw It?
2. 13.2: Find All Three
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3. Lesson 13 Summary
4. Glossary
5. Lesson 13 Practice Problems
1. 14.1: True or False: Computational Relationships
2. 14.2: Angle Plus Two
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3. 14.4: Four Triangles Revisited
4. Lesson 14 Summary
5. Lesson 14 Practice Problems
1. 15.1: Where Is Lin?
2. 15.2: Building Diego’s and Jada’s Shapes
3. 15.3: Swinging the Sides Around
4. Lesson 15 Summary
5. Lesson 15 Practice Problems
1. 16.1: 3 Sides; 3 Angles
2. 16.2: 2 Sides and 1 Angle
3. 16.3: 2 Angles and 1 Side
4. Lesson 16 Summary
5. Lesson 16 Practice Problems
1. 17.1: Using a Compass to Estimate Length
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1. Are you ready for more?
2. Lesson 17 Summary
3. Lesson 17 Practice Problems
1. 18.1: Deducing Angle Measures
2. 18.2: Tessellate This
3. 18.3: Rotate That
4. Glossary
1. Lesson 1: Moving in the Plane
2. Lesson 2: Naming the Moves
3. Lesson 3: Making the Moves
4. Lesson 4: Coordinate Moves
5. Lesson 5: Describing Transformations
6. Lesson 6: No Bending or Stretching
7. Lesson 7: Rotation Patterns
8. Lesson 8: Moves in Parallel
9. Lesson 9: Composing Figures
10. Lesson 10: What Is the Same?
11. Lesson 11: Congruence
12. Lesson 12: Alternate Interior Angles
13. Lesson 13: Adding the Angles in a Triangle
14. Lesson 14: Parallel Lines and the Angles in a Triangle
15. Lesson 15: Building Polygons
16. Lesson 16: Triangles with 3 Common Measures
17. Lesson 17: Drawing Triangles
18. Lesson 18: Rotate and Tessellate
1. 1.1: Printing Portraits
2. 1.2: Scaling F
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3. Lesson 1 Summary
4. Glossary
5. Lesson 1 Practice Problems
1. 2.1: Number Talk: Multiplying by a Unit Fraction
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2. 2.3: Which Operations? (Part 1)
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3. Lesson 2 Summary
4. Glossary
5. Lesson 2 Practice Problems
1. 3.1: Three Quadrilaterals (Part 1)
2. 3.2: Three Quadrilaterals (Part 2)
1. Are you ready for more?
3. 3.4: Scaling A Puzzle
4. Lesson 3 Summary
5. Lesson 3 Practice Problems
1. 4.1: What is a Scale Drawing?
2. 4.2: Sizing Up a Basketball Court
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3. Lesson 4 Summary
4. Glossary
5. Lesson 4 Practice Problems
1. 5.1: Number Talk: Which is Greater?
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2. 5.3: Two Maps of Utah
3. Lesson 5 Summary
4. Lesson 5 Practice Problems
1. 6.1: Appropriate Measurements
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2. 6.3: A New Drawing of the Playground
3. Lesson 6 Summary
4. Lesson 6 Practice Problems
1. 7.1: One to One Hundred
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2. 7.3: The World’s Largest Flag
3. Lesson 7 Summary
4. Lesson 7 Practice Problems
1. 8.1: Number Talk: Remembering Fraction Division
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2. 8.3: Scaled Rectangles
3. Lesson 8 Summary
4. Glossary
5. Lesson 8 Practice Problems
1. 9.1: Notice and Wonder: Concentric Circles
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1. Are you ready for more?
2. Lesson 9 Summary
3. Glossary
4. Lesson 9 Practice Problems
1. 10.1: Dilations on a Grid
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1. Are you ready for more?
2. Lesson 10 Summary
3. Lesson 10 Practice Problems
1. 11.1: Equivalent Expressions
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2. 11.3: Similarity Transformations (Part 2)
3. 11.4: Methods for Translations and Dilations
4. Lesson 11 Summary
5. Glossary
6. Lesson 11 Practice Problems
1. 12.1: All, Some, None: Congruence and Similarity
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1. Are you ready for more?
2. Lesson 12 Summary
3. Lesson 12 Practice Problems
1. 13.1: Equivalent Expressions
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2. Lesson 13 Summary
3. Lesson 13 Practice Problems
1. 14.1: Two-three-four and Four-five-six
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2. 14.3: Using Side Quotients to Find Side Lengths of Similar Triangles
3. Lesson 14 Summary
4. Lesson 14 Practice Problems
1. 15.1: Equal Quotients
2. 15.2: Similar Triangles on the Same Line
1. Are you ready for more?
3. 15.4: Different Slopes of Different Lines
4. Lesson 15 Summary
5. Glossary
6. Lesson 15 Practice Problems
1. 16.1: Coordinates and Lengths in the Coordinate Plane
2. 16.2: What We Mean by an Equation of a Line
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3. Lesson 16 Summary
4. Lesson 16 Practice Problems
1. 17.1: Missing center
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2. 17.3: Dilations and Slope Triangles
3. Lesson 17 Summary
4. Lesson 17 Practice Problems
1. 18.1: Which Measurements Matter?
2. 18.2: Creating a Floor Plan (Part 1)
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3. 18.4: Creating a Floor Plan (Part 3)
3. 19.3: Justifying the Relationship
4. 19.4: The Height of a Tall Object
1. Lesson 1: What are Scaled Copies?
2. Lesson 2: Scale Factors and Making Scaled Copies
3. Lesson 3: Scaled Relationships
4. Lesson 4: Scale Drawings
5. Lesson 5: Creating Scale Drawings
6. Lesson 6: Changing Scales in Scale Drawings
7. Lesson 7: Units in Scale Drawings
8. Lesson 8: Projecting and Scaling
9. Lesson 9: Dilations
10. Lesson 10: Dilations on a Square Grid
11. Lesson 11: Similarity
12. Lesson 12: Similar Polygons
13. Lesson 13: Similar Triangles
14. Lesson 14: Side Length Quotients in Similar Triangles
15. Lesson 15: Meet Slope
16. Lesson 16: Writing Equations for Lines
17. Lesson 17: Using Equations for Lines
18. Lesson 18: Draw It to Scale
19. Lesson 19: The Shadow Knows
1. Glossary