Reflecting Shapes: Same or Different?
Jessica Schoffel; M. Breyfogle
March 2005, Volume 11, Issue 7, Page 378
How a first grade class is introduced ato the concept of symmetry. The lesson includes activities for classroom use on developing recognition of objects that have symmetry, as well as visualization of both horizontal and vertical lines of symmetry.
Problem Solving / Problem Posing
Similarity / Congruence