SYMMETRY Links:

http://www.mathsisfun.com/geometry/symmetry.html 

http://www.mathsisfun.com/geometry/symmetry-line-plane-shapes.html 

http://www.juno.co.uk/miniflashplayer/SF501955-01-01-01.mp3 

http://www.juno.co.uk/miniflashplayer/SF501955-01-02-01.mp3