✂️ No screens required
Hands-on classroom activities that teach real Computer Science concepts without a computer in sight. Free for teachers, home educators, and curious students.
Students simulate a social media feed algorithm using cards — exploring engagement loops, filter bubbles, and why the algorithm shows you what it shows you. Timely, curriculum-linked, and genuinely eye-opening.
Coming soon
Students become the nodes in a sorting network — physically swapping cards to understand how parallel sorting algorithms work.
A physical simulation of public key cryptography using coloured paint mixing — no maths required to understand the concept.
Students walk Dijkstra's algorithm using a physical map and string — discovering how GPS finds the fastest route.
Students write precise step-by-step instructions for a "robot" classmate — revealing why computational thinking and precision matter in programming.
The classic CS Unplugged card trick that teaches binary representation — guess any number from 1–31 with just five cards.
Students pass torn-up messages across a "network" of desks — experiencing routing, packet loss, and reassembly first-hand.
For teachers
All activities are written by a Senior Examiner and Head of CS, with full curriculum links and discussion questions included. New activities added regularly.
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