Grid missions with real instruction cards, a sorting network run by hand, if–then machines, parity magic — and a first look inside the computer. Thinking becomes engineering.
Eighty cards fan open, the camera tours every component, and the harder ideas animate — mirrors, grid missions with turns, balance clues, a real sorting network, and why AI can be wrong.
Computer scientists use sorting networks to order data. The Class 4 kit puts one on the table: number tiles enter the lanes unsorted, get compared and swapped at each junction, and come out sorted — every single time. Children don't just see an algorithm work. They are the algorithm.
A "mind-reading" trick powered by odd-and-even logic — the same error-detection idea computers use.
Predict the holes before you unfold the paper — spatial reasoning you can test with scissors.
Tap to flip. Class 4 backs do more than give the answer — they flag the classic trap ("exactly 4" vs "at least 4") and connect each puzzle to how real programs behave.
Same box, same nine colours, same routine — zero re-learning. The Grid Mat gains turns, patterns gain numbers, and "Meet AI" grows into "Inside the Computer".
Completely fine. Each kit stands alone — early cards in every module warm up the basics before the challenges climb.
Class 5 moves from running algorithms to designing them — search strategy, sufficiency, rotation. Meet the Class 5 kit →
Ages 8–10 · 80 cards · Grid Mat 2.0 · Sorting Network · Parity Grid · Fold & Cut Lab · workbook · guide.