The Educated Sports Parent
Hockey Modifications
Mites
Divide mites into a 5-7 year-old age group and an 8-9 year-old group at
a minimum
Hold only one hourly practice per week
Limit season to 3 to 3 1/2 months
Set up 3-4 stations throughout the entire rink where all players can
simultaneously be working on different skills
Scrimmage the width of the rink, not the length, and hold multiple
scrimmages at once so everyone is involved
Do not give the mites the leftovers when it comes to practice time.  
They may not understand why they have to wake up in the middle of
the night to make it to a 5 am practice
Allow all players to play all positions (1)

The
USA Hockey website offers material on skills progressions to help set up a developmentally appropriate program  

References

(1) Bigelow, B., Moroney, T. & Hall, L. (2001). Just Let the Kids Play: How to
Stop Other Adults from Ruining Your Child’s Fun and Success in Youth Sports
.
Deerfield Beach, FL: Health Communications, Inc.