Course homeLessonsChallenges
UNIT 02 · FOUNDATIONS

Select a lesson

—

Learn the concept

STUDY & APPLY

Why it matters

Example code



Walkthrough


Predict before running


Common mistake


Your practice task




Progressive hints




Practice these skills

Read the complete lesson and reflection ↗



Try it yourself
PYTHON WORKSPACE


 main.pyPython 3 in browser





OUTPUT & FEEDBACKPython not loaded


Choose a lesson and select Run example.



Keep your work

Drafts on this page are saved in the current browser. Use Copy code to back them up. To submit, place the code into the matching Unit 01–06 main.py in your GitHub fork and open or update a pull request.

Manual GitHub submission instructions ↗


Browser checks use published examples and are not your official grade. GitHub login and cross-device saving are planned, but not yet connected.