Attempt to make a visitation schedule that will accommodate your teen's activities. This does not mean canceling visitation when an event is planned. It does mean allowing the teen to participate, while allowing for time with both parents. If there's a football game on a visitation weekend, that parent should take the teen to the game and pick him or her up and then use the rest of the visitation time as usual. Allow for studying.
Teens have a larger amount of homework than younger children.
Studying should be planned at both homes. Make sure books travel with the teen. Set consistent rules in both homes. Both parents should have the same curfew, forbidden activities, and dating and phone rules. Factor in the teen's friends and social life.