Classroom Timer

Pick a preset or type minutes and seconds, then press Start. The bar shrinks and changes from green to yellow to red as time runs out, and a short alarm plays at zero. Full screen makes the digits readable from the back of the room.

How to use the classroom timer

1. Tap a preset or enter minutes and seconds and press Set.
2. Press Start (or the space bar). Pause and Reset any time.
3. Use Full screen on a projector or smartboard. Switch the mode to stopwatch to count up.

Ideas for using timers in class

• Think-pair-share: 1 minute to think, 2 minutes to discuss.
• Timed fact practice: 3 minutes of multiplication.
• Transitions: a 2-minute clean-up countdown.
• Stations: 10 minutes per station.

Time math

The display shows minutes:seconds. 90 seconds is 1:30 because 90 ÷ 60 = 1 remainder 30. The progress bar shows the fraction of time left: halfway through a 10-minute timer it is half full.

Classroom Timer quiz: 10 questions

Test yourself with 10 multiple-choice questions. Choose an answer and press Submit to see if you are right and why. Your score appears at the end.

Frequently asked questions

Does the timer work in full screen?

Yes. Press Full screen; the digits scale to fill the display.

Will it beep at the end?

Yes, if Alarm sound is checked. Some browsers need one click on the page first to allow sound.

Does it keep time if I switch tabs?

Yes. It uses the system clock, so it stays accurate even when the tab is in the background.

Is there a stopwatch?

Switch the mode to stopwatch to count up.

Can I use it on a smartboard?

Yes. It runs in any modern browser.

Sources

• Wikipedia: Think-pair-share

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