Here's how to get the most from each lesson:

1. Read the short note at the top.
2. Run every code box — don't just read it. Seeing the output is half the learning.
3. Break it on purpose. Change a value, run again, see what happens. You can't damage anything.
4. Do the "Your turn" exercise. Typing it yourself is what builds the skill.

The lessons are grouped into sections in the sidebar. Follow them in order the first time through — each one builds on the last.