eBook
Mathigon

Mathigon: Geometry: Transformations and Symmetry: Dilations

For Students 9th - 10th Standards
This lesson focuses on dilations, a dilation is a transformation that resizes a geometric shape, by making it bigger or smaller.
Unit Plan
Texas Education Agency

Texas Gateway: Generalizing Proportions From Similar Figures

For Students 7th - 8th Standards
Given a pair of similar figures, including dilations, students will be able to generalize that the lengths of corresponding sides are proportional.
Handout
CK-12 Foundation

Ck 12: Geometry: Types of Transformations Study Guide

For Students 9th - 10th Standards
[Free Registration/Login may be required to access all resource tools.] Transformations move and modify geometric shapes. There are several types of transformations that all transform figures in different ways. These transformations can...