Science
ReactionMetric
A free reaction time activity that turns a click into real data for students to average, compare, and question.
- Grade bands
- 6-8 · 9-12
- Price model
- Free
- Platforms
- Web
- Subject
- Science
What it is
Students wait for a signal, respond as fast as they can, and get their time in milliseconds across five trials, with the median, average, best, worst, and consistency worked out for them. It is a ready made source of data for lessons on variables, averages, and why measurements vary. The maker describes it as an informal learning activity, not a validated laboratory instrument.
Notable features
- No sign up
- Five trial results
- Built in averages
A way to use it
Have groups change one variable, such as dominant versus non dominant hand, and compare medians to talk about fair tests.
Privacy and accounts
No sign up. The maker says personal history stays in the browser, and sharing results for comparison is optional.
A listing is a starting point, not a district approval. Check your own district's privacy and procurement rules before classroom use. Nobody pays to be listed here, and this link earns no commission.
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