The students in Miss Mackle's third-grade class enjoy a day of Halloween surprises, including Harry's unusual costume.

As Valentine's Day approaches, the students in Room 2B are preoccupied with kickball and a possible wedding between Horrible Harry and Song Lee.

Horrible Harry and friends start off third grade with a new room and a field trip to an old copper mine to study rocks.

Working on a dragon project in Room 3B leads to a war between two good friends--Harry and Song Lee.

Follows the school activities of second-graders, Harry and Doug, as they participate in a secret mission to celebrate "Charlotte's Web," learn how to make green slime, and put on a skit warning about the dangers of smoking.

Minnesota, 1932. The Lincoln School is a pitiless place where hundreds of Native American children, forcibly separated from their parents, are sent to be educated. It is also home to an orphan named Odie O'Banion, a lively boy whose exploits earn him the superintendent's wrath. Forced to flee, he and his brother Albert, their best friend Mose, and a brokenhearted little girl named Emmy steal away in a canoe, heading for the mighty Mississippi and...

Jill goes along with the rest of the fifth-grade class in tormenting a classmate and then finds out what it is like when she, too, becomes a target. {28}Blubber is a good name for her,

Harry persuades his classmates to sneak through the playground fence during lunchtime recess to view some unusual mushrooms.

Sixth-grader and self-proclaimed genius Nate Wright faces his all-time enemy, Gina, when they are paired to work on a research paper together and she also gets a position on his intramural team.

Miss Mackle's third graders share December holiday traditions --Christmas, Hanukkah, Kwanzaa, Three Kings Day, and Korean New Year-- with each other and with Harry's great grandfather, who has just moved to a nursing home.