Level 1 · Understand AI
AI Fundamentals
The core ideas behind modern AI, explained in plain language. Start here to build a strong foundation.
Fundamentals lessons
What Is Artificial Intelligence? A Simple Explanation
Understand what artificial intelligence really means, how it differs from normal software, and where you already use it…
Start lessonHow Does AI Work? Data, Patterns and Predictions
A plain-language look inside AI: how data, training and models work together to turn examples into predictions.
Start lessonWhat Is Machine Learning? Explained With Everyday Examples
Machine learning is the engine behind modern AI. Learn its three main types — supervised, unsupervised and…
Start lessonWhat Is Generative AI? How AI Creates Text, Images and More
Generative AI creates new content — text, images, audio, video and code. Learn how it works, what it is good at, and…
Start lessonWhat Are Large Language Models (LLMs)?
Large language models power AI chatbots. Learn what tokens, context windows and training mean — and why LLMs sometimes…
Start lessonAI Opportunities and Limitations: Using AI Responsibly
A balanced view of what AI can and cannot do — and simple rules for using it safely, honestly and responsibly at study…
Start lessonAI glossary: key terms in one line
| Term | Simple meaning |
|---|---|
| Artificial intelligence (AI) | Technology that performs tasks needing human-like intelligence |
| Machine learning (ML) | AI that learns patterns from data instead of fixed rules |
| Deep learning | Machine learning using many-layered neural networks |
| Generative AI | AI that creates new text, images, audio, video or code |
| Large language model (LLM) | An AI model trained on huge amounts of text to understand and generate language |
| Prompt | The instruction or question you give to an AI |
| Token | A small piece of text an LLM reads and writes |
| Hallucination | A confident-sounding but incorrect AI answer |
| AI agent | AI that can plan steps and use tools to complete a task |
Common questions about AI
Is AI the same as a robot?
No. A robot is a physical machine. AI is software. Some robots use AI, but most AI you use — like chat assistants or recommendations — has no physical body.
Can AI think like a human?
Today’s AI finds patterns and produces likely answers. It can be remarkably capable, but it does not experience or understand the world the way people do, and it still makes mistakes that people must catch.
Why does AI sometimes give wrong answers?
Generative AI predicts plausible text. Without reliable information, it can produce answers that sound right but are wrong. That’s why checking important facts matters.
Finished the fundamentals?
Move to Level 2 and start using AI tools like a pro.