I started a chapter on geometric translations and reflections with Sam today. She indicated that her year in Geometry had a lot of inconsistency with teachers, so this seems like a good place to begin with her. I taught her that a slide is simply a left-right or up-down shift of a shape. The original shape is called the preimage, and the translated (slide) figure is called the image. A reflection is when a shape is "flipped" over a line of symmetry. We looked at shapes and measured the slopes of the sides of a parallelogram that had been both translated and reflected. She started, and should finish at home, p. 344 (1-5)