I used the small radial cutter to cut 6 circles out of finger paint/wet media paper. I folded the circle 3 times to produce 8 segments. The boys outlined the segments and painted the same pattern in each using only secondary colors.
I asked what a radius was, and Ds#1 knew from reading Sir Cumference books.
They made some wonderful creations! As the book suggested we also looked at the use of secondary colors in The Green Violinist by Marc Chagall.