Students in Mrs. Palazzolo's Geometry Labs used "Miras" to explore the
concept of symmetry and reflections as transformations in two
dimensional geometry. The "Mira" is an optical drawing instrument. The
"Mira" has an advantage over using a mirror because it allows the
student to see the original at all times. The result being able to map
one image over another. Students started with words and moved onto
reflections on the coordinate plane.