Katie is the only one in her class who has not lost a tooth, but despite all of her efforts, her wiggly tooth refuses to come out

When Katie is chosen to take the class pet, Binky the guinea pig, home for the weekend, she runs into a problem

As Katie, her parents, and friends celebrate Independence Day with a parade, games, a picnic, and fireworks, the few things that go wrong do not interfere with their fun

Katie wants to be helpful, and so she starts making dinner on her own

Katie is enrolled in a gymnastics class, but when she has trouble doing some of the moves she gets discouraged and considers dropping out

Katie's dad surprises her with a trip to a ranch where she can ride a real horse

The class bully loves to tease Katie Woo until she decides to ignore him

As Career Day at school approaches, Katie has great ideas for helping her friends present their future professions, but cannot think of a job that she would like to do

Katie is nervous about a sleepover at her grandparents' house

One cold, gray, winter day, Miss Winkle leads Katie Woo and the rest of her class on an imaginary journey, challenging them to find ways to complete their lessons on a sunny island, under the sea, or on the moon