Also known as ArtPacs. Each lesson has a "materials needed" list. Look ahead and buy these materials before class. We strongly recommend that you, the teacher, either do the lesson before hand to present an example, or do one with the student as he works, to show him how. You will need an extra Artpac to do this, but it is well worth the investment. 8.5x11 Artpac 8 Shading with pen and ink.