It is almost Christmas, but Katharine's teacher Mrs. Bingsley is unhappy--can Katharine discover why and find a present that will cheer her teacher up?.
When the doorbell keeps ringing but nobody is there, Katharine is convinced that her schoolmate Vanessa is playing tricks on her--until a school science project provides a different solution.
Katharine does not want to cut her long hair and donate it to Locks of Love, but she is feeling pressured by the other girls in her third grade class to do it--will she give in or stay true to herself?.
Third grader Katharine Carmichael enlists help from her cousin Crockett in order to beat out her classmate Vanessa in thinking up the winning idea for the school-wide service project.
Third grader Katherine finds that her mother's new job in the school cafeteria is causing her major problems and decides to take matters into her own hands.
Third grader Katherine is accused of stealing and thinks her little brother is a blood-sucking monster who is going to ruin the school's Halloween parade.