The Trouble With Miss Switch — Barbara Brooks Wallace

What do you do when you discover that your new fifth-grade teacher, Miss Switch, is an honest-to-goodness, broom-flying, card-carrying witch who has arrived at your school actually requiring the help of your great scientific brain to help her solve a serious problem? Well, if you are Rupert P. Brown, III, owner of said brain, you help her, naturally, ending up doing some broomstick flying yourself, and going on a hair-raising journey to confront a whole flock of witches and the crazy computowitch, source of Miss Switch's problems. The Trouble With Miss Switch and its sequel, Miss Switch to the Rescue, televised as ABC Weekend Specials, were the highest rated shows of that series. Not hard to guess why!