When a British student-teacher arrives, A. J. and his friends wonder if her all-black clothing and love of blood sausage mark her as a vampire, while Mr. Granite simply hopes her musician-boyfriend will stay away long enough for a math lesson.

A.J. and the gang at Ella Mentry School are in for a super surprise when a new teacher, Mr. Cooper, take over their third grade class--

When Pete discovers that his teacher is sick and his mom is the substitute, he must teach her the ins and outs of his school.

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.

When boring Mr. Loring retires, 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.

New third grade teacher Mr. Granite has so many strange ideas about how to make Ella Mentry 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.

First-grader Posey and her friends are excited about Halloween, but also a little nervous about trick-or-treating and eating Miss Lee's monster stew.

Because Posey does not follow the rules when she takes her new toy to school, Miss Lee locks Poinky in the consequences drawer until Friday.