Timekeeper t OVER (Time lapse display Lecture Discussion Start 1st Bell 2nd Bell 3rd Bell Lecture OVER Discussion (Time lapse display for lecturers) t Time lapse graphic display (Start 3rd Bell) Time left until 2nd Bell (for Lecture) Time left until 3rd Bell (for Discussion) Excess time after 3rd Bell
Timekeeper (B) t OVER (Time lapse display Lecture Discussion Start 1st Bell 2nd Bell 3rd Bell (Time lapse display for lecturers) OVER Lecture Discussion t Time lapse graphic display (Start 3rd Bell) Time left until 3rd Bell (for Lecture and Discussion) Excess time after 3rd Bell