This term, 6.246 will be taught virtually. “Live” lectures and recitations will be presented at designated hours via Zoom. While “live” participation is encouraged, recordings of the lectures and recitations will be available for those not able to attend the sessions live, with means provided (e.g., via Piazza) for asynchronous responses to questions. We will seek to schedule recitation to satisfy the time zone constraints of participating students. In place of in-class discussion during the special topic lectures, students can expect to participate in "asynchronous discussion" via Piazza.