Mrs. Meyer from the local fire department comes to Ella Mentry School to teach the kids about fire safety, but Mrs. Meyer likes fire just a little too much.

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.

With guidance from Miss Brown, a teacher who is an expert on creativity, the third grade class at Ella Mentry School builds a car and a bridge to compete in a Brain Games competition against Dirk School.

After noticing that A.J. and his friends' geography knowledge could use some work, Mr. Cooper invites to class just the person to help. Globetrotter Mrs. Barr speaks seven languages and has visited nearly two hundred countries! But why does she carry a suitcase everywhere she goes? And why does she open a window whenever she walks into a room? Perhaps Mrs. Barr has something to hide!--Amazon.com.

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.

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.

"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?"--