Learning Resources Simple Stopwatch Easy-to-use stopwatch, fashioned in contemporary colors, has three buttons for simple programminggreen for go, red for stop, and yellow for clear Great addition to classrooms for timed fluency readings, science labs, activity centers, and math activities, and can come in handy for classroom management Whether timing minute math exercises or counting down for station switches, this Simple Stopwatch helps teachers make effective use of instructional time Easy-to-read display shows minutes, seconds and 1/100 seconds Stopwatch measures 3H and requires one 1.5 V button-cell battery, included. Colors may vary (red/purple, green/purple, and blue/purple) Measures 3H Ideal for ages 5+