This document discusses assessing student understanding through multiple representations. It presents a workshop where teachers try different activity stations to represent geometry concepts, including paper and pencil, computer programs, art, and photography. The document suggests assessing students' understanding based on the representations they create. It also discusses benefits and disadvantages of using these types of activities for assessment and how realistic they are for the classroom. Further strategies are brainstormed for allowing students to demonstrate their ideas through multiple modes like audio, video, drama and presentations. Related resources on the topic are provided.