http://www.sciencekids.co.nz/gamesactivities/math/transformation.html
http://www.mangahigh.com/en-us/games/transtar
http://www.mathplayground.com/ShapeMods/ShapeMods.html
https://www.sheppardsoftware.com/mathgames/geometry/shapeshoot/TranslateShapesShoot.htm
http://www.ixl.com/math/grade-3/reflection-rotation-and-translation