What to expect from your children and positive parenting tips:

Middle Childhood (6-8 years of age):

http://cdc.gov/ncbddd/childdevelopment/positiveparenting/middle.html

Middle Childhood (9-11 years of age):

http://cdc.gov/ncbddd/childdevelopment/positiveparenting/middle2.html

Young Teens (12-14 years of age):

http://cdc.gov/ncbddd/childdevelopment/positiveparenting/adolescence.html

Teenagers (15-17 years of age):

http://cdc.gov/ncbddd/childdevelopment/positiveparenting/adolescence2.html