Mathematics and Society - OS X Lion Server

BACKGROUND:Motions in geometry can be illustrated in music.REFLECTIONSAn object is reflected along an axis so that a mirror image is produced.sometimes refer to reflections as "flips.1f.:..:.• •, Students1.···1···.1The axis seems to bisect the picture created by the two objects.possesses line symmetry.The total pictureTRANSLATIONSAn object moves along an axis to a new position."slides,,"These are sometimes called..ROTATIONSAn object revolves about a point a given number of degrees.as Ilturns,,"-, -- ,\,, " ~/ ../f'-:.I\ , "..,,Students remember them,x i •291