About this tool

Some classroom games only work if nobody — including the teacher — knows exactly when the timer will end, and that's what this tool is for. Pick a minimum and maximum time, press start, and the timer stops somewhere inside that range without warning. That unpredictability is exactly what keeps turn-based games sharp: students stay alert because the round could end on any turn. Use it for pass-the-object games, rotating question drills, or anything where a surprise stop keeps the whole class engaged until the very last second.