Tracing is laying a strong foundation for drawing and emerging writing, the children are able to strengthen their arms and refine finger movements and gives your child some great practice coordinating their fingers, hands, and wrists' This will ultimately prepare your child for writing, drawing, and coloring.. It's best to use tracing to learn about the lines, curves, shapes, children should be able to color grossly within the lines of simple shapes and forms, this helps infant to refine their pre-writing skill.