Just finished a massive project with the fifth grade. Each class made a colonial style village mural. Each student was assigned a different trade/shop and needed to research it enough that they would be able to create a building for that shop. We spent some time learning 1 point perspective so they could put their buildings into perspective, drawing and painting their buildings one at a time and then assembling them onto a mural and completing the background. It was a very long project, but they actually turned out quite nicely, if I do say so myself.