The drawing lesson required that students explore the concept of depth and perspective by overlapping cats in size order depending on height and age of their loved ones. Two principles of design most focused on in this unit of study are pattern and contrast. Each cat features an interesting pattern. Redimark markers allow students to flood black into shapes and make thick lines, while Sharpie markers are enabling them to create thinner lines. The idea is to create a good balance of contrast between the black and white.