
Your child builds a carnival game, works out the real odds of winning it, then sets a price and prize so the house comes out ahead. They test the maths against real games played and discover why every prize wall and scratch ticket is built to win slowly. Real-world STEM maths that turns probability into a game they can feel.
Ages 6–14 · Activity guide · 3 skill levels
Your child builds carnival-style games and works out the odds behind them. How likely something is when you calculate it, versus how likely it feels, are rarely the same number. Then they find where the profit hides in the gap between price in and prize out.
When maths lives in real money, real measurements, and real decisions, it stops being a worksheet and becomes a tool. A kid who uses it to get something they actually want remembers it for life, and they did it with you. That is the moment "I taught my kid something real" starts to feel possible.
From the families
Be the first to share your experience with The Probability Lab.
Reviews come from members who’ve actually done the activity with their kids.
Only members who’ve used the activity can write reviews. Join the membership.
All 120+ activities
The membership covers nine topics (math, AI, communication, planning, creativity, outdoor, entrepreneurship, worldschooling, and emotional & social skills) with new activities every quarter. $99/year, locked in for life as a founding member.
Unlock everything, $99/yr→$99/year founder rate14-day money-back guaranteeCancel anytime
Not ready to join?
Free 7-day guide
Seven real-world activities. One a day, for a week. No payment, no commitment.
Designed by a teacher with 15 years of classroom experience, now homeschooling her own kids.