{"product_id":"galton-board","title":"Probability Demonstrator, Classroom Galton Board","description":"\u003ch2\u003eTurn It Over. Watch the Math Happen.\u003c\/h2\u003e\n\u003cp\u003eFlip this board and roughly 3,000 steel beads rain down through a triangular field of pins. Each bead bounces left or right at random. By the time they settle in the bins below, they have drawn a bell curve — the same shape, run after run. That is the central limit theorem, sitting on your desk.\u003c\/p\u003e\n\n\u003ch2\u003eWhat Makes It a Teaching Tool\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eA live normal distribution.\u003c\/strong\u003e Every flip sends the beads through the pin grid again. The stack that forms in the bins is a fresh binomial distribution, built one bead at a time.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThe theory is printed right on the face.\u003c\/strong\u003e The clear acrylic panel carries the standard deviation formula, Pascal's triangle, and the binomial theorem, so you can point from the falling beads to the math behind them.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePredicted vs. observed.\u003c\/strong\u003e The bins along the bottom are labeled with the expected percentages. Students can check how closely each run matches the theoretical curve — and see that no two runs are identical.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNo setup between runs.\u003c\/strong\u003e The weighted stand holds the board upright and lets you flip it end over end. That one motion resets the beads for the next demonstration.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eClassroom Aid by Day, Desk Piece Always\u003c\/h2\u003e\n\u003cp\u003eAt 7.5 by 10.5 inches, it fits on a lectern or an office desk. The fully transparent body lets you follow individual beads on their way down, and the printed curve overlay shows how they pile up around the mean. It suits math teachers walking a class through the central limit theorem, and it suits data scientists, engineers, and statistics students who simply like having probability made visible within arm's reach.\u003c\/p\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eMaterial: clear acrylic panel on a weighted display stand\u003c\/li\u003e\n\u003cli\u003eSize: 7.5 x 10.5 x 3 inches\u003c\/li\u003e\n\u003cli\u003eBeads: about 3,000 steel beads\u003c\/li\u003e\n\u003cli\u003eConcepts demonstrated: normal distribution, bell curve, binomial distribution, Pascal's triangle, standard deviation\u003c\/li\u003e\n\u003cli\u003eAge guidance: 10 and up\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eIn the Box\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1 Galton board\u003c\/li\u003e\n\u003cli\u003e1 weighted display stand\u003c\/li\u003e\n\u003cli\u003e1 instruction sheet\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eGood Fit For\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eTeachers and professors demonstrating statistics concepts in class\u003c\/li\u003e\n\u003cli\u003eAnalysts, engineers, and data scientists who want a working probability model on the desk\u003c\/li\u003e\n\u003cli\u003eStudents learning binomial and normal distributions\u003c\/li\u003e\n\u003cli\u003eAnyone shopping for a thoughtful STEM gift\u003c\/li\u003e\n\u003c\/ul\u003e\n","brand":"Gearfinch","offers":[{"title":"Default Title","offer_id":47560163066034,"sku":"binomial34738","price":78.95,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0777\/0754\/2706\/files\/puzzloria-galton-board-probability-demonstrator-1.png?v=1780849871","url":"https:\/\/gearfinch.com\/en-ie\/products\/galton-board","provider":"GearFinch","version":"1.0","type":"link"}