Mathematical Lens: Making a Pitch for Slope

Heidi Rudolph teaches mathematics at Orange High School in Pepper Pike, Ohio, located across the street from the Orange City School District administration buildings (see photograph 1). The buildings' rooflines inspired her to develop questions related to the slopes of the roofs and to consider ways in which dynamic geometry software such as The Geometer's Sketchpad® (GSP) could be used to make measurements that would help answer her questions.