Teach Pixel the robot to see, learn, talk and play fair, and find out how AI really works.

Unit 1 · Meet Pixel

Lesson 1 Is It AI? AI is a computer program that learns to do a job, like spotting, sorting or talking. It is not alive. 🔒 Finish the lesson before

Lesson 2 Rules or Examples? There are two ways to make a computer smart: write the rules, or show it lots of examples. 🔒 Finish the lesson before

Lesson 3 How Pixel Sees A camera turns a picture into a grid of tiny squares, and the computer stores each square as a number. 🔒 Finish the lesson before

Lesson 4 What Does Pixel Notice? An AI only measures a few things, like shape, colour and size, and guesses from those. 🔒 Finish the lesson before

Lesson 5 Muffin or Puppy? AI can be fooled by things that look alike. It is guessing, not understanding. 🔒 Finish the lesson before

Unit 2 · Teach Pixel

Lesson 6 Train, Then Test We train an AI with examples, then test it with new examples it has never seen. 🔒 Finish the lesson before

Lesson 7 More, Different Examples More examples help, and the best ones are different from what the AI already knows. 🔒 Finish the lesson before

Lesson 8 Oops, Wrong Labels If the examples have wrong labels, the AI learns the mistakes. People must check the data. 🔒 Finish the lesson before

Lesson 9 Fair for Everyone When the examples leave some people out, the AI treats them unfairly. That is bias. Varied examples make it fairer. 🔒 Finish the lesson before

Lesson 10 How Sure Is Pixel? AI guesses with more or less confidence. When it isn't sure, a person should check. 🔒 Finish the lesson before

Unit 3 · Talk with Pixel

Lesson 11 Guess the Next Word A chatbot writes by guessing the next word, again and again, from the words it has read before. 🔒 Finish the lesson before

Lesson 12 Sounds Sure, Might Be Wrong A chatbot can say wrong things in a very sure voice. Check important facts somewhere else. 🔒 Finish the lesson before

Lesson 13 Ask It Well What you ask changes what you get. Clear, detailed requests work better. 🔒 Finish the lesson before

Lesson 14 Not a Person, Not a Friend A chatbot isn't a person and doesn't really feel or care. Keep private things private, and talk to real people about big feelings. 🔒 Finish the lesson before

Lesson 15 Made by AI? AI can make pictures, voices and videos that look real. Look for clues, and check where it came from. 🔒 Finish the lesson before

Unit 4 · AI and Us

Lesson 16 Learning from Rewards Some AI learns by trying things and getting rewards. It learns exactly what you reward, so reward the right thing. 🔒 Finish the lesson before

Lesson 17 Why Did It Pick That? Apps use AI to choose what you see next, from what you clicked before. You can still choose. 🔒 Finish the lesson before

Lesson 18 My Own AI Helper Plan, train and test your own AI helper, and set rules for using AI well. 🔒 Finish the lesson before