A MONOCHROMATIC EXERCISE
Gesso has enough body and tooth to use as a barrier to hold in wet media.
A clean squeeze bottle served me well for "drawing" the shapes. I also filled in some areas. Then I let the design dry overnight, before painting.
The water and paint stayed within the confines of the slightly raised gesso lines. This exercise might be good for middle schoolers or beginners at the high school level. Art teachers could substitute watercolors at the painting stage if desired. Students should create their own designs rather than relying on this "Pebble" motif, of course.