Mr. Docker, a new science teacher, is a crazy inventor who blows things up, uses potatoes for power, and has A.J. and his friends wondering whether science is for nerds or is the coolest subject ever.

As the new computer lab teacher tries to bring Ella Mentry School into the twenty-first century with her peculiar inventions, second-grader A.J. struggles to survive without sugary snacks when Principal Klutz bans junk food.

Famous children's author Suki Kabuki and her pet raptor, Rappy, wreak havoc during a visit to Ella Mentry School.

Mrs. Kormel is a weird school bus driver who gets A.J. and his friends so lost that they may never get to school.

A.J. and his friends find out what amazing things Miss Lazar, the Super Custodian at their school, can do.

A.J. and his classmates are convinced that new school librarian, Mrs. Roopy, has multiple personality disorder because she keeps pretending to be famous people.

A skateboarding principal offers unusual incentives to his students to motivate them to learn more.

A.J. and his friends are thrilled to finally be graduating from second grade, but when the PTA president turns the occasion into a madhouse, they begin to wonder if starting third grade is really such a big deal.

A.J. believes his new peewee football coach is crazy after she demands the team does push-ups in the mud and tells them to lift up a car, but when she wants to put girls on the team, A.J. thinks the coach is going too far.

Mr. Macky, the reading specialist who thinks he is Abraham Lincoln, assigns A.J. and his friends to read all about the presidents for President's Day.