My fifth graders worked really hard on these!
We made stencils for tessellations using ROTATION this year. I had much better success with these than I have in the past trying to do tessellation projects.
They carefully painted them in with black tempera using a small brush for the edge and larger brush to fill in the middle of each shape- it created an 'alice in wonderland'-like checker board as they went on.
Afterward we worked on mixing various grays.
To finish them off the students used toothpicks, q-tips, and the end of brushes to create designs on top of the black and grays.