Each student was given a color photograph with a clear grid of one-inch squares all over it and a sheet of drawing paper with a one-inch margin all around it. Each student had to draw a grid of 1.5-inch squares on his drawing paper. Then he will look at the photograph under the grid and transcribe what he sees in each square onto each square of his paper. This drawing technique was used during the Renaissance and helps to develop observation skills, the understanding of positive and negative space, and line and shape relationships in space.