We are learning about Leonardo DaVinci in our studies of the Renaissance. He made some of the first true illustrations of polyhedrons as illustrator in Luca Pacioli's book The Divine Proportion.
So we had a brief review of geometry and particularly polyhedrons. We watched a You Tube video on Divine Proportion and DaVinci's use of perspective in his art work.
I also found some fun paper templates for polyhedrons at Enchanted Learning. I printed each one on different colored card stock.
The kids just cut them apart and glued the tabs together. It was a fun hands-on way to see the different shapes and they were able to actually count the number of sides that each shape has.