Exploring 2D Transformations: Translations, Reflections, Rotations, and Dilations

Professor Finkel introduces geometric transformations in two dimensions, explaining the coordinate grid and the four types of transformations: translation, reflection, rotation, and dilation. Each transformation is described with examples, and the session concludes with a brief recap before an unexpected interruption.

What are the two elements that make up coordinates on a grid?

• X and Z

• X and Y

• A and B

• Y and Z

Tags

CCSS.5.G.A.1

Which transformation involves sliding a shape across the coordinate grid?

• Translation

• Rotation

• Dilation

• Reflection

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

How many types of reflections are there?

• Three

• Two

• One

• Four

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

What is the term used for turning a shape around a point?

• Rotation

• Reflection

• Translation

• Dilation

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

In what increments do we perform rotations?

• 45 degrees

• 60 degrees

• 90 degrees

• 120 degrees

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

What is the term for resizing a shape using a scale factor?

• Reflection

• Translation

• Rotation

• Dilation

Tags

CCSS.8.G.A.3