Educational Studies in Mathematics, Vol. 80, No. 1/2, Mathematics Education and Contemporary Theory (May 2012), pp. 217-231 (15 pages) We illustrate and exemplify how the idea of reflection is framed ...

The idea of “reflection” is one of several Euclidean motions in a plane that are studied in geometry. Along with it are concepts such as rotation and translation. It was reflection, however, that I ...