The new music teacher must try to teach A.J. and the rest of his class to play well enough during their recital to impress crabby Dr. Carbles.

A.J. and his friends get a Personal Digital Assistant named Miss Porter as a substitute teacher, who can order pizza and tell endless jokes, but grows power-hungry when her system is changed and tries to take over Ella Mentary School.

New lunch lady Ms. Hall is obsessed with healthy food and she makes it her mission to get A.J. and the gang to eat more vegetables, but they won't take this sitting down.

A.J. and the other second graders do everything except play sports when they go to "fizz ed" class with their new teacher, Miss Small.

The new lunch lady at Ella Mentry School, Ms. LaGrange, writes secret messages in the mashed potatoes and tries her best to get A.J. and the other students to eat healthy foods.

After disappointing Miss Zandergoth on their first mission, Luke, Isabel, David, and Julia are sent to capture a photograph of the Titanic sinking.

A.J. and his friends are afraid that Ms.Todd, their substitute teacher, has killed their regular teacher and is trying to take over her job.

"School's out for summer! A.J. can't wait to spend his days playing video games, watching TV, and forgetting everything he learned during the school year. But when his parents announce they've signed him up for sleepaway camp, his great plans slip away right before his eyes. Now he's stuck at Camp Ahdoanwanna with his friends. Between the mosquitoes and bees, animals that break into the cabins, and a moose head that guards the mail, this is definitely...

Alexia is delighted when Mr. Cooper brings in Bob, a hognose snake, as class pet, but when Bob keels over, is Andrea's toy poodle or Alexia's neglect to blame?

While attending the live taping of a hilarious Saturday morning kids TV show, A.J. and his friends must figure out what to do when the host, Uncle Fred, whose childlike behavior isn't an act, refuses to grow up!