Lab · Beginner · 8 lessons

Neural network playground

Build a small neural network, pick a dataset and watch it learn in real time. Add layers and neurons, change activation functions and see every weight update.

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Lessons

  1. 1

    Meet the neuron

    Welcome! · Ask it a question · What's inside a neuron? · Your turn: be the network

  2. 2

    Measuring mistakes

    How wrong is it?

  3. 3

    Learning by tiny nudges

    One learning step · Let it practise · How big should a nudge be?

  4. 4

    Why the bias matters

    Pizza prices

  5. 5

    Yes-or-no questions

    Making a decision · The squish · Train it

  6. 6

    When one neuron isn't enough

    The hallway light

  7. 7

    Teamwork: hidden layers

    Add some helpers · Follow an answer · Look inside

  8. 8

    You did it!

    What you learned