Jump to the head of your class and bring your classmates along. StudyPop is a fun, interactive and challenging study game students using Houghton Mifflin Harcourt curriculum can play with their friends and classmates, anywhere, anytime. Just select your grade level, choose a content area and let the study fun begin. Can be played with two or more players: one player holds up the device displaying a study word/concept while the other players give hints to solve for the word. Take turns to win points and compete for the highest score!