This document discusses elements that need to be present in a language classroom to help students learn effectively. It outlines the elements of engage, study, and activate. Engage aims to arouse student interest through activities like games, music, and stories. Study refers to focusing on language construction, such as pronunciation practice or grammar rules. Activate describes exercises that encourage students to use language communicatively through activities like role-plays, debates, and story writing. The document also discusses different lesson sequences, such as boomerang, patchwork, and straight arrow, that incorporate these engage, study, activate elements.