How to Lose Your Class Pet

Willimena Thomas tries to get her teacher Mrs. Sweetly to like her. Mrs. Sweetly has a reputation for being strict with children. Willie thinks that if she volunteers for everything, Mrs. Sweetly will really like her. So Willie volunteers to take care of Lester, the guinea pig, the third grade class pet, and the consequences are disastrous. Willie learns from the experience and Mrs. Sweetly reveals a side of herself that Willie never imagined.