Here are some general resources for Middle School kids, their families, and teachers. 

Middle School Survival Book (from Jefferson CountySD, KY.  It's a downloadable .pdf)
Middle School Child (Growing Up Isn't Easy... For Parents & Kids)
What To Expect When Your Child Goes through Puberty (American Academy of Family Physicians)
Normal Adolescent Development (Middle School & Early High School)
The Nature of the Middle School Child (From Northville SD, MI)