This MathWorld site gives a visual description of dilation and the different kinds of dilation in a similarity transformation.

The goal of this task is to study the impact of dilations on distances between points. Aligns with G-CO.A.2.

The goal of this task is to apply dilations to a triangle in the coordinate plane. Students 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 a...