This article describes what experts define as typical behavior for an eleven-year-old.
A Typical Sixth Grader
Where They Are
The average eleven-year-old is heading towards adolescence. He:
Shows more self-assertion and curiosity.Is socially expansive and aware.Is physically exuberant, restless, wiggly, and talks a lot.Has a range and intensity of emotions.Is moody and easily frustrated.Can relate feelings.Is competitive, wants to excel, and may put down the "out group."Exhibits "off-color" humor and silliness.Teases and tussles.Where They're Going
At eleven years old, your child is making the transition to adolescence. You can help by encouraging her as she:
Copes with changes.Transitions to adolescence.Works on her interpersonal skills.Handles peer groups and pressure.Develops personal interests and abilities.Takes on greater responsibility for her behavior and decisions. 
Brought to you by the American School Counselor Association