Hitting a baseball is one of the most complex body actions in sport. Proper baseball swing mechanics require total body synchronicity, precise eye-hand coordination, balance, timing, rhythm, and strength.
When practicing, especially at the younger levels, try and incorporate some form of coordination exercises at every practice. The better your kids can become at controlling their bodies, the better baseball players they will be. Examples: skipping rope, one leg balancing, simple jumps, target practice, switch hitting, juggling, one-handed catches, etc. One last note, as kids get older, pay special attention to their flexibility and range of motion in their joints.
Position in the Batter’s Box
Stance and Grip
Approach and Stride
Side View of the Swing