The system defaults to a class duration of 60 minutes, but the teacher may end the session after completing the minimum effective teaching duration of 55 minutes. Please add your review after the system's default end time. The following two situations prevent you from rating the teacher: (1) the review must be submitted within 24 hours after the lesson ends; (2) the student must have a record of entering the video classroom. Students who were absent cannot rate the teacher after the lesson.
