The document provides background information on the teacher, Dan Levy, and the context of the lesson. It will take place at the British Study Centres in Hove, where Dan teaches general English courses. The aims of the lesson are to teach students the present perfect tense using time words like "just, yet, and already." The lesson plan includes a video introduction, presentation, drilling exercises, listening practice, and a role play activity for students to practice the target grammar. The document also outlines contingencies and anticipated challenges, such as the multilingual class and varying student levels.