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.

As if Mondays aren't bad enough, A.J.'s bus gets a flat tire and his bus driver Mrs. Kormel gets everyone lost in the middle of nowhere.

A.J. and the other students at Ella Mentry School brave trick-or-treating at the school secretary's house, even though it is supposedly haunted.

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

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.

Four fifth-grade students--a geek, a class clown, a teacher's pet, and a slacker--as well as their teacher and mothers, each relate events surrounding a computer programmed to complete homework assignments.

Eleven-year-old Harry Mancini lives in the house where Houdini spent his final years, so he has always been interested in the famous magician, and has even learned a few simple magic tricks; he just never expected Houdini to contact him from beyond the grave--and what Houdini wants him to do could well cost Harry his own life.

"Rappy the Raptor tells the story of how he bacame a rapping velociraptor, all in rhyme"--

Mrs. Cooney, the school nurse, is so beautiful that A.J. has a crush on her--even though he suspects she might be an international spy!

Ryan wants to form a curling team at school with A.J. and Andrea, but soon trouble amongst his teammates threatens to end their season early.