Miss Daisy's unusual teaching methods surprise her second grade students, especially reluctant learner A.J.

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

Life at Ella Mentry School gets a lot more interesting when the self-proclaimed nerd Mrs. Yonkers takes over the computer lab, and a new rule goes into effect banning all junk food.

After discarding their infamous homework machine, four friends, now in sixth grade, find themselves once again at the police station, this time giving testimony about an incident involving a powerful computer chip, a Grand Canyon treasure, and a dead body.

Boring Mr. Loring retires, and A.J.'s class gets a new music teacher who raps, break-dances, and thinks he has what it takes to become a famous musician.

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.

When the new vice principal is put in charge of Ella Mentry School for a few days, she tries out some very unusual ideas about how students learn.

Tired of following the strict rules of their grumpy replacement principal, second grader A.J. and his classmates try to find a way to bring back eccentric but lovable Principal Klutz, who was fired for bringing a wild turkey to the school's Thanksgiving Day assembly.

Things get a little crazy at Ella Mentry School during a visit from Miss Suki Kabuki, a famous children's book author who lives in a rain forest and writes about endangered animals, when her pet falcon, Rappy, gets loose in the classroom.

New third grade teacher Mr. Granite has so many strange ideas about how to make Ella Mentary School environmentally friendly that the students are sure he must be an alien.