Interactive
Government of Alberta

Learn Alberta: Math Interactives: Exploring Dilations

For Students 9th - 10th
Investigate dilations using this interactive resource. Students are given an opportunity to explore how scale factors can be used to enlarge or reduce the size of a given figure. Be sure to follow the link to the printable activities,...
Lesson Plan
Illustrative Mathematics

Illustrative Mathematics: G Gpe Scaling a Triangle in the Coordinate Plane

For Teachers 9th - 10th Standards
The goal of this task is to apply dilations to a triangle in the coordinate plane. Young scholars will need to find the coordinates of a point which cuts a given segment into one third and into two thirds. The two dilated triangles share...
Handout
Varsity Tutors

Varsity Tutors: Hotmath: Similar Figures

For Students 9th - 10th Standards
Find a clear explanation of similar figures. Discusses how they can be transformed through a sequence of rotations, reflections, translations, and dilations. Explanations are supported with illustrated examples.