Artificial Intelligence — From Scratch

Artificial intelligence can feel like magic, but it is built from surprisingly simple ideas that anyone can understand and even play with. In this course you will discover what AI really is, light up a single 3D neuron and watch it think, train a tiny neural network by nudging it with examples, draw a line that separates cats from dogs, watch a model recognise handwritten shapes, and peek inside the architecture that powers ChatGPT. Every lesson pairs a real, working simulation with plain-language explanation — by the end you will not just have heard of AI, you will have built pieces of it yourself.

You will learn: doneWhat AI, machine learning and deep learning actually mean doneHow an artificial neuron turns inputs into an output doneHow training uses examples and error to improve a model doneLinear classification and decision boundaries doneThe basics of neural networks and how language models work

play_arrow Start course play_lesson8 lessons schedule~108 min total

Lessons

1 smart_toy What Is AI, Really? Sort the world into "things a computer can just be told" versus "things it has to learn from examples" — and meet the simple idea that makes modern AI possible. Simulation 11 min done 2 hub Meet the Neuron Light up a single 3D artificial neuron: feed it inputs, weight them, push the sum through an activation function and watch it fire. 3D model 14 min done 3 model_training How Machines Learn Watch a tiny network learn in real time: scatter points, press train, and see the loss fall and the network gradually fit the pattern — the core loop of all machine learning. Simulation 15 min done 4 show_chart Drawing the Line: Classifiers Scatter red and blue dots, then drag a dividing line until it separates the two groups — and watch a perceptron find that line automatically. Simulation 13 min done 5 image_search Teaching Machines to See Draw a digit, and watch a simple image classifier guess what you wrote — then peek inside to see how it turns pixels into a prediction. Simulation 14 min done 6 account_tree Inside a Neural Network Fly through a 3D neural network: watch signals travel along weighted connections from input layer to output, lighting up neurons as they fire. 3D model 14 min done 7 forum How ChatGPT Works Type a few words and watch a language model predict the next one — the simple, surprising mechanism behind every chatbot from ChatGPT to Gemini. Simulation 15 min done 8 psychology AI Ethics, Bias & Your Future Spot the bias in a hiring algorithm, weigh the risks of a self-driving car, and decide where you would — and would not — trust an AI to make a decision. Simulation 12 min done