Lessons
Step-by-step lessons in six tracks, from unplugged games to real Python code.
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Lives, Levels and Game Over
Use variables to keep track of lives, levels and score, and see how a game decides when you win or…
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Level Design on Squared Paper
Design game levels on squared paper, plan a difficulty curve and learn the rules that make a challenge fair.
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Game Art with Pixels
Design a pixel-art game character on squared paper, then teach the turtle to draw it by looping over a list…
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Playtesting and Debugging
Test a game with friends, write down bug reports and track down two sneaky bugs that make a program run…
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What Is a Robot?
Find out what makes a machine a real robot, and learn the three-step secret that every robot follows.
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How Robots Sense the World
Meet the sensors that let robots notice light, touch, distance, sound and temperature, and match each one to a human…
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Light It Up!
Build your very first circuit with a coin battery and an LED, and learn why the electricity needs a closed…
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Switches Are Decisions
Make a paper-and-foil slide switch for your LED, and discover that a switch works just like an if in code.
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Motors, Wheels and Gears
Find out how robots roll, steer and turn on the spot using two wheels, and how gears make things slower…
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Follow That Line!
See how a robot with two light sensors can follow a dark line using four simple rules, then test the…
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Don’t Bump Into Things
Teach a robot to spot obstacles with a distance sensor and steer around them, then test the rule in Python.
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Program Beep on a Grid
Plan routes for Beep with forward, left and right commands, then find and fix a bug in a program that…