Classical machine learning is still the backbone of most production AI.
Start this phase on GitHub
Prerequisites: Phase 1 Math Foundations and NumPy. Check the route with
python3 phases/00-setup-and-tooling/01-dev-environment/code/verify.py --route ml-foundations.
First lesson: What Is Machine Learning
Run this command from the repository root:
bash
python3 phases/02-ml-fundamentals/01-what-is-machine-learning/code/ml_intro.pyKeep the command, exit code, test accuracy, random baseline, and one sentence explaining why the learned classifier beats that baseline.
Next action: Change the class separation, predict how accuracy will move, run it again, then continue to Linear Regression from Scratch.
Browse the full Phase 2 lesson list or the cross-phase roadmap.