Module 0
How this course works
Read, predict, code, run, understand.
You will learn by doing, not by reading.
This course is built like a laboratory. Each lesson has two sides: an explanation on the left, and a working Python editor on the right.
Try it
Every lesson follows the same rhythm: Read a short idea, predict what the code will do, code it, run it, and understand what you saw.
Don't worry about the goal of every lesson upfront. Just keep interacting. The platform runs Python directly in your browser, so there is nothing to install.
Remember
Run code executes whatever you wrote and shows the output. It never grades you — it's for experimenting. Check answer runs a small test to see if you solved the challenge.
What does the Run code button do?