8.GM.1 Explore dilations, translations, rotations, and reflections on two-dimensional figures in the coordinate plane. G.TS.1 Use geometric descriptions of rigid motions to transform figures and to ...

Draw the line of reflection. From a point on the shape, count how far it is vertically from the line of reflection. Count the same amount horizontally on the other side of the line and plot the point.

ABSTRACT: Combinatorial methods are used to give specific mathematics, and the proof of combinatorial identities is the hot spot research of combinatorial mathematics. Binomial coefficients play an ...

Each challenge shows a red shape and its image (outline) under a single unknown transformation (either a reflection, rotation, or translation). Drag the red shape to observe the behavior of its image.