Figure 8 passing through legs is a fun and active way for your child to practice and facilitate the development of both midline crossing and corodination skills. Midline crossing is an important skill to develop as it requires both sides of your childs brain to coordinate smooth, controlled, complex movement and is required in almost all functional tasks, such as reading, writing and shoelaces. For this activity your child will stand with their legs apart and pass a ball through their legs.