Lesson Timer is a free, big countdown and count-up timer for the classroom whiteboard. Set a single time, or build your whole lesson as a sequence of timed stages that run one after another, auto-advancing with a chime. The ring shifts from green to amber to red as time runs low, and it fills the screen so the whole class can see it.
Add stages like Starter (5 min), Main task (20 min) and Plenary (5 min) — or tap "3-part lesson" for a quick template — and Lesson Timer runs through them in order, chiming and auto-advancing between each, showing what's happening now and what's next. It turns a simple timer into a tool that paces the whole lesson.
Is Lesson Timer free?
Yes — it's free. Just set a time and go.
Can I time a whole lesson in stages?
Yes — add stages (e.g. Starter, Main task, Plenary) with a time each, and the timer runs through them, auto-advancing with a chime and showing now and next.
Can it count up as well as down?
Yes — choose count down or count up (a stopwatch).
Is there a visual warning as time runs out?
Yes — the ring shifts from green to amber to red as the time runs low.
Keeping the day on track? Put a big Countdown on the board, scribble on the Whiteboard, or start the morning with the Morning Board.