Students define translations and reflections and discuss how they can be found in dance, in math, and in the world around them. Then, they talk about how they can identify a triangle by the size and type of its angles. They make gigantic acute triangles, right triangles, and obtuse triangles with stretchy bands. Students create reflections (flips) and translations (slides) with the triangles. They create, notate, and analyze dances with a triangle and a sequence of translations (slides) and reflections (flips). Students learn how dancing translations, reflections, and angles help them understand and use them in math. Designed to be taught in a sequence, this is lesson three of three: 1) Parallel and Perpendicular Lines and Lines of Symmetry – Rhombus Shadowing, 2) Angles – Shapelines, 3) Transformation Dances – Translations, Reflections, and Angles.