Preschool teacher Allyson Krogmann has students build shapes using blocks and verbal descriptions. One student gets to be the "lead builder" and build a structure using blocks that the other students can't see. The lead builder describes the structure and the other students ask questions as they try to make their own versions of the structure. Finally, the structure is revealed and students get to see if they have made the same structure as the lead builder. This strategy is a great way to build spatial reasoning skills and vocabulary.