Bilateral coordination is the ability to use two sides of the body simultaneously in a controlled and organized manner.
Crossing the midline is a skill that depends on efficient bilateral coordination. It is the ability to use the eye, hand, or foot of one side of the body in the space of the other eye, hand, or foot.
Good bilateral coordination and midline crossing is required to carry out classroom tasks, such as drawing, writing, cutting, and reading. It is also important for carrying out self-help tasks, such as tying shoelaces, unbuttoning and buttoning a shirt, and opening and closing lunch containers.