Tennis: Sticky Dots Help Players Aim the Ball
The key to aiming the ball is to point the racquet face in the direction you want the ball to travel. You can reinforce this concept through the use of adhesive dots, available at any stationary store (and probably in your school's office).
Stick a dot on the bottom-front of your students' racquet handle — the surface that corresponds to the racquet-face. Then instruct them to aim the dot where they want the ball to go.
Reference: The Learning Channel, Dating Story, 12/17/99.