# Teaching the machine. One downhill step.

Inspect all three gradients, freeze a proposed update, and watch a learning step change mean loss.

Part 5 of the six-part logistic regression series. Predict, explore and explain one idea through numerical controls, a focused interactive, hints and thinking questions.

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Canonical page: https://21ifm.com/ml/gradient-descent

## Explore

- [View the whole logistic regression series](https://21ifm.com/ml)
- [Try a free foundation lesson with Zon](https://21ifm.com/basics/sine)