A teacher at Public School 279 in Canarsie was arrested yesterday after an investigation of a complaint that he hung a 5-year-old boy in a closet by his belt last Thursday, the police said. The teacher, Jason Schoenberger, 24, who teaches. Jokes for Teachers Math Jokes 9.A rubber band pistol was confiscated from algebra class, because it was a weapon of math disruption. 10. The. Help your children tell hilarious…