The AP Chemistry warm-up is presented to the class at the beginning of each class period. While the instructor is taking attendance and focusing on the clerical side of teaching, the class is expected to focus on the prompt projected on the white board.
As the year progresses, the warm-up will increasingly focus on material covered previously in the year. In that way, it serves as a continuous review of concepts previously taught. At the beginning of the year, the warm-up may focus on concepts from General Chemistry, the first-year course. It may also focus on concepts that will be taught in the near future, in an effort to create some background knowledge when new subjects are encountered in the course.