# Unit 2: My Reflections

## Lesson 1: Projecting and Scaling

• I can decide if one rectangle is a dilation of another rectangle.
• I know how to use a center and a scale factor to describe a dilation.

## Lesson 2: Circular Grid

• I can apply dilations to figures on a circular grid when the center of dilation is the center of the grid.

## Lesson 3: Dilations with no Grid

• I can apply a dilation to a polygon using a ruler.

## Lesson 4: Dilations on a Square Grid

• I can apply dilations to figures on a rectangular grid.
• If I know the angle measures and side lengths of a polygon, I know the angles measures and side lengths of the polygon if I apply a dilation with a certain scale factor.

## Lesson 5: More Dilations

• I can apply dilations to polygons on a rectangular grid if I know the coordinates of the vertices and of the center of dilation.

## Lesson 6: Similarity

• I can apply a sequence of transformations to one figure to get a similar figure.
• I can use a sequence of transformations to explain why two figures are similar.

## Lesson 7: Similar Polygons

• I know the relationship between angle measures and side lengths in similar polygons.
• I can use angle measures and side lengths to conclude that two polygons are not similar.

## Lesson 8: Similar Triangles

• I know how to decide if two triangles are similar just by looking at their angle measures.

## Lesson 9: Side Length Quotients in Similar Triangles

• I can find missing side lengths in a pair of similar triangles using quotients of side lengths.
• I can decide if two triangles are similar by looking at quotients of lengths of corresponding sides.

## Lesson 10: Meet Slope

• I can draw a line on a grid with a given slope.
• I can find the slope of a line on a grid.

## Lesson 11: Writing Equations for Lines

• I can decide whether a point is on a line by finding quotients of horizontal and vertical distances.

## Lesson 12: Using Equations for Lines

• I can find an equation for a line and use that to decide which points are on that line.

## Lesson 13: The Shadow Knows

• I can model a real-world context with similar triangles to find the height of an unknown object.