Mathematics and Society - OS X Lion Server

(Background for Student Page:The notes on the student page have been rotated 180 0 or a half turn about a givenpoint on the staff. This may be the most difficult motion for students to "see." Itprobably occurs in written music only by coincidence.Students should experience rotating many geometric shapes in a variety of ways.The simplest for them to visualize is a rotation of a figure about a center point.While they are doing these, discuss the amount of turn taking place.Examples:leoThe center of rotation can also be a point on the figure.be produced by students.Examples:Interesting designs can(Extensior,Polar graph paper can be used to create lsome nice designs. Shade some regions in 4(or another fractional part) of the graphpaper. Repeat the design in all parts byturning the design about the center point.Ask students to find pictures of flowers or plants where an illustration of rotationis apparent. Sunflowers or other spiral designs in nature are good for this purpose.(296