5 and 6 year old players should know the following skills:

Throwing a Baseball

• Holding a baseball properly to make a throw.
• Throwing a baseball.  Front shoulder points toward the target.
• Step toward the target and throw.
  
• Proper throwing mechanics.
• See the (Video Library
  

Batting/Running the bases

• How to swing a bat, left handed or right handed.
  
• Teach the kids how runs can be scored.
• Teach the basics of base running.  Running through the base and rounding the base.

 
Fielding

• Ready positions.
• Fielding a ground ball.
• Catching the ball in front of the body.
• Teach the basics of catching a fly ball.
  
• Using your other hand to cover the ball in the glove when caught.
• All players must understand how to get outs. (Force outs, Tag Outs.)
• Kids should know every position at this age.  They should know where to go when the ball is hit.