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1. 01

   Supervised learning map (opens in a new tab)

   Classification, regression, and what “good enough” means.

   fast.ai

2. 02

   Validation discipline (opens in a new tab)

   Splits, leakage, and metrics that match the decision.

   scikit-learn.org

3. 03

   Feature work (opens in a new tab)

   Encode, transform, and document what the model actually sees.

   kaggle.com