When Ella Mentry School invites a local dentist to speak on National Dessert Day, A.J. and his friends uncover the dentist's secret plot to promote cavities for more business.

Sprinkles Newman, the local TV meteorologist, is coming to Ella Mentry School! She s going to teach A.J. and the gang all about the weather. But what happens when a real live (well, not live) hurricane comes to the school? Hold on to your umbrellas!

"A.J. and the gang are celebrating Saint Patrick's Day with all the classic activities. But when A.J. spots a little man dressed head-to-toe in green sneaking around, it can only mean one thing: a real-life leprechaun! And one that's wreaking havoc all around the school! Will the Ella Mentry School kids be able to catch the leprechaun before he causes even more trouble?"--

On picture day at Ella Mentry School, the strange new photographer wants to turn A.J. into a supermodel and the Picture Day Zombie makes an appearance.

A.J. has trouble coming up with a talent to put on display in his class's upcoming talent show.

"There's a new principal at Ella Mentry School. Yes, it's true! Mr. Klutz is retiring and the president of the Board of Education, Dr. Carbles (Boo! Hiss!), has hired the best person for the job -- or at least the funniest. But stand-up comedian Mrs. Stoker will have to face Vice Principal Mrs. Jafee in a big joke-off duel to defend her new job. Will Mrs. Stoker have the last laugh? Or will she lose her audience when things get serious?"--

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.

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

When Ella Mentry School is threatened with closure due to budget cuts, A.J.'s new speech teacher, Miss Laney, comes up with a brilliant, if weird, plan to save the day.

A.J. and his friends are in for a wild adventure when their school bus gets a flat tire and their driver, Mrs. Kormel, gets lost in the middle of nowhere.