Miss Hattie Monster is trying desperately to complete three hats for her next customer, but for some reason the Jingle Monsters and the Puff Monsters keep jumping off the hats! The Monster Math Squad helps Miss Hattie Monster by MATCHING the right number of Jingly Monster to the right number of Puff Monsters on each hat. They finish the three hats just in time as Mister Three Head Monster arrives to pick them up! Word of the Day: SETS. Math Concept: Consider sets of 1,2,3 objects – getting pom pom monsters on hats.