Classroom mode
Run it in class
Is a coin that just landed heads five times 'due' for tails?
Show of hands — before you project anything
Predict: after five heads in a row, is the next flip more likely to be tails? Write down your guess before we flip.
- A Way more than you'd guess
- B About what you'd guess
- C Way less than you'd guess
Count the votes out loud. Hold them to it — then watch.
Project it (fullscreen)
Discussion prompts
- Predict: after five heads in a row, is the next flip more likely to be tails? Write down your guess before we flip.
- Predict: if we flip a thousand times, will the number of heads and the number of tails end up exactly equal? Then check the running tally.
- Predict: does a longer streak of heads make tails 'more due'? Explain your reasoning, then test it.
Where it shows up in real life
- A sports team on a losing streak that fans say is 'due' for a win
- Board-game dice — 'we already rolled three sixes, no way we get another'
- Lottery players who pick a number because it 'hasn't come up in a while'
A prediction-first worksheet — no answer key.
zero prep · no login · any projector
Winding down at home? Family mode ·
Explore every question
Is a coin that just landed heads five times 'due' for tails?
Predict — what do you think will happen, and why?
Talk about it
- Predict: after five heads in a row, is the next flip more likely to be tails? Write down your guess before we flip.
- Predict: if we flip a thousand times, will the number of heads and the number of tails end up exactly equal? Then check the running tally.
- Predict: does a longer streak of heads make tails 'more due'? Explain your reasoning, then test it.