Designer Peter Han creates awesome chalkboard drawings during a drawing class he teaches called Dynamic Sketching:
"Using only chalk, Han works with his students to let go of their preconceived notions about art and design by working in a fast, impermanent medium that always ends up being erased. The hope is to eventually free them from the idea of permanence and allow their ideas to grow through making mistakes."
Adriel de la Torre directed a short video, entitled Pardon My Dust, in which we get to watch Peter Han drawing and working with his students while telling about the philosophy behind his class. It’s beautiful and fascinating.