Third grade students redesigned their classroom by learning how to scale furniture and create 2D and 3D floor plans. They scaled furniture models, created floor plans at 1/4 inch scale, and made 3D objects to scale. Students tested a design without tables and found it difficult to work in. They then introduced 3 tables with 6 seats each. In the new design, students found more comfortable and flexible work spaces that allowed for reading, writing, math and collaboration in groups.