In this episode, when Malcolm starts tutoring Reese, Malcolm asks what Reese did with his math book, and Reese replies "which half?" In an earlier episode in the season, (S2E7), Reese is shown cutting a textbook in half with a saw.
Dave 'Gruber' Allen, who plays Mr. Woodward in this episode, partnered with David Anthony Higgins (who has a recurring role on Malcolm in the Middle as Craig Feldspar) on the 1989 TV series 'Higgins Boys and Gruber'.