This study investigated the ways in which four middle grades teachers developed mathematical knowledge for teaching (MKT) geometry as they implemented dynamic geometry software in their classrooms with the assistance of a coach. Teachers developed various components of MKT by observing coaches teach, by dynamic discourse with students, which is…

Considers how well cerebral palsy students learn high school geometry. Finds that one student needed a lot of time to process visual information. Concludes that the orientation of angles, complexity of the diagram, and the length of the side of an angle all had an impact on understanding. (Author/CCM)

Reviews three computer software packages: "Mystery Objects," a science inquiry series for grades one-four; "Physics," covering physics content for high school and introductory college level; and a tutorial program "Sensei Geometry." Required hardware, price, and addresses for each software package are listed. (YP)