When Martin takes his teacher's classroom fish home for the holidays, his carelessness causes him troubles involving his little sister.

Feuding classmates become friends after a snowball fight.

A normal day at school becomes special when the Witch comes for a visit and uses her magic.

Describes in simple language the structure, movement, purpose, and growth of out bones. Shows how bones give shape to the body and describes the different bones- long, short, flat, and curved in different parts of the body.

The author describes some childhood memories: Valentine's Day at school, fishing with his father, building a fort, letting frogs loose in his class, and Thanksgiving with his grandmother.

Peter Piper and Silly Sally visit Betty Botter, reciting well-known tongue twisters along the way.

Big mean Bertha threatens everyone, especially Max, until he gets a dog.

When the Invisible Inc. gang makes computer greeting cards to raise money to invite an author to school, they solve the mystery of the author's real name.

When someone takes Justin's karate belt, his friends in Invisible Inc. try to determine a motive as they investigate the mystery.

Even though they are not in the same class, two young friends are glad that they decided to give school a try.