Bottom of the Class - School Jokes. Bottom of the Class - School Jokes. Clean Christian jokes, funny jokes, free jokes, and clean jokes and humor about school. kids, teachers, algebra, math, and more. Enjoy a wide variety of funny Christian jokes, good clean jokes, and family safe jokes and religious humor. I'm worried about you always being at the bottom of your class," said the father to his son. "Don't worry Dad," he replied. "They still teach the same thing at both ends."