How Machines Learn
Train It, Test It, Trust It?
7 min+60 XPStep 1/10
You can train a model in five minutes
Tools like Google's Teachable Machine let anyone train a real image model in a browser: hold up objects, snap examples, train, test — done.
The workflow is universal:
1. Collect examples for each category 2. Label them (the answer key) 3. Train — the model finds the pattern 4. Test on new examples it never saw 5. Use it — carefully
Every giant AI system follows this same five-beat rhythm, just bigger.
insight
Try it sometime: Teachable Machine, teachablemachine.withgoogle.com — train a model that recognizes your hand gestures. It's free, runs in your browser, and makes this lesson visceral.