Chapter 2

Section 1 - Congruent Figures

• Desmos - Corresponding Parts and Congruence
• CommonCore Sheets - Identify congruent, similar or neither figures
• IXL - Congruence statements and corresponding parts
• IXL - Side lengths and angle measures of congruent figures

Introduction to Transformations

• Desmos - Transformations using Everyday Language
• CommonCore Sheets - Identify transformations (Translation, rotation, reflection)
• Khan Academy - Identify transformations (Translation, rotation, reflection, dilation)
• IXL - Identify reflections, rotations and translations
• Khan Academy - Congruence & transformations (Includes figures that look identical)

Section 2 - Translations

• Desmos - Translations
• IXL - Translate Shapes on the Coordinate Plane
• Desmos - Translations with Coordinates
• Desmos - Translations Coordinate Notation
• IXL - Translations: Find the Coordinates
• Khan Academy - Translate points (Given translation, find new coordinates or plot point)
• Khan Academy - Translate shapes (Given coordinate notation, translate the shape by its vertices)
• Khan Academy - Determine translations

Section 3 - Reflections (Across the axes only)

• Desmos - Reflections
• Desmos - Reflections Coordinates
• Khan Academy - Reflect points (and find the coordinates)
• IXL - Reflect Points and Shapes
• Khan Academy - Reflect shapes - Might be hard to move the pre-set points
• Khan Academy - Determine line of reflection
• IXL - Reflection (Find the coordinates)

Section 4 - Rotations (90 and 180 degrees only)

• Desmos - Rotations
• Quizlet - Identify Rotations (Matching)
• Quizizz- Identify Rotations (Multiple Choice)
• Desmos - Rotations without Tracing Paper
• IXL - Rotations: Graph the point
• Khan Academy - Rotate Points - uses negative (counterclockwise) notations
• Khan Academy - Determine rotations - uses negative (counterclockwise) notations

Sequence of Rigid Transformations

• IXL - Describe a Sequence of (Basic) Transformations (does not include dilations)
• Quizlet (Flashcards) - Describe a Sequence of Transformations (does not include dilations)
• Khan Academy - Find measures using rigid transformations
• Khan Academy - Rigid transformations: preserved properties
• Khan Academy - Mapping shapes
• IXL - Graph a Sequence of Transformations (may be hard on a computer, includes reflections not on x/y axis)
• Math Playground - Shape Mods Transform the green shapes into the red shapes. Use translations, reflections, and rotations to solve each challenging puzzle.
• Math Playground - Reflect and Rotate Select "random puzzle" or "play a game"

Section 5 - Similar Figures

• Khan Academy - Similarity & transformations (Includes figures that look identical)
• IXL - Side lengths and angle measures of similar figures (shapes may not always face same direction) (or this link which uses geometry notation, but shapes are facing the same direction)
• IXL - Are these shapes similar?

Section 6 - Perimeters and Areas of Similar Figures

*the Key Ideas in textbook is not an 8th grade math standard

Section 7 - Dilations

• Dilations - Digital Break Out
• Khan Academy - Find Center of Dilation
• IXL - Dilations: graph the image
• IXL - Dilations: Find the coordinates
• IXL - Scale factor and classification (Enlargement or reduction)
• Khan Academy - Find Scale Factor of a Dilation (includes dilation not at the origin)
• Khan Academy - Dilate Triangles with a Given Scale Factor (Not at the Origin)

Sequence of Transformations with Dilations

• Quizlet (Flashcards) - Describe a Sequence of Transformations
• Khan Academy - Properties of Dilations (includes dilation not at the origin)
• IXL - Similar Triangles and Similiarity Transformations