Classroom Countdown
Choose letters or numbers, set the challenge and start the 30-second clock.
Letters
About Classroom Countdown
Run a Countdown-style challenge on a classroom screen using either the letters or numbers round. Choose vowels and consonants until the nine-letter selection is complete. The tool enforces a balanced selection with at least three vowels and four consonants. Pupils then form words using the displayed letters.
For a numbers round, choose six numbers from the large and small pools and generate a target between 100 and 999. Give pupils time to work before using Solve to reveal a result. If the solver cannot find an exact solution, the page reports that rather than claiming the target is reachable.
The 30-second timer has pause and reset controls, with optional sound cues and a soft ticking sound. Mute those cues when discussion or accessibility needs make silence preferable. Use short rounds for mental arithmetic or spend longer discussing different methods. This is a fan-made classroom practice tool with original visuals and code; challenges and calculations run locally in your browser.