Students in grades 4+ practice reflections, tranlations, and rotations. Students use drag and drop blocks to create one or several transformations. They may experiment creatively or test their knowledge by predicting the transformed shape. A companion game can also be found on the site.
From the Open University's Open Learn site.
Identify rotation and translation symmetries in wallpaper patterns. Think this will work well in class, but uses click & drag, so will probably use a wireless mouse rather than the IWB.
Students explore symmetry, translations, and rotations, solve algebra puzzles, practice addition and subtraction with integers, and investigate linear functions and graphs.