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