Artificial intelligence is part of everyday life, so it's worth understanding how it actually works. These lessons explain AI in plain language, models, prompts, tokens, training data, RAG, chatbots, and AI agents, without the hype or the jargon. Great for kids, parents, and anyone meeting AI for the first time.
What Is AI?
How a language model learns patterns and builds an answer.
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What Is a Chatbot?
A computer helper you can talk to using words.
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What Is Machine Learning?
How computers learn from examples instead of being told every rule.
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What Is an LLM?
A robot brain that learns patterns in words and predicts what comes next.
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What Is a Model?
The learned pattern brain a computer uses to make guesses.
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What Is a Prompt?
The question or instruction you give an AI.
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What Is a Token?
The little pieces of text an AI reads and writes, one at a time.
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What Is Context?
How an AI keeps track of what was just said.
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What Is Training Data?
The examples an AI learns from. Good examples make a good AI.
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What Is Fine-Tuning?
Giving a trained AI extra practice on a special job.
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What Is RAG?
How the robot looks things up before it answers.
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What Are AI Agents?
AI that can take actions and use tools to get things done.
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What Is Hallucination?
When an AI sounds sure but makes something up.
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What's the Difference Between ChatGPT and Codex?
ChatGPT is a general AI helper you talk to; Codex is a coding helper for building software.
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What's the Difference Between Claude, Claude Desktop, and Claude Code?
Claude is the AI helper, Claude Desktop is the app on your computer, and Claude Code is the version for coding jobs.
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What's the Difference Between ChatGPT, Claude, Grok, and Copilot?
They're all AI assistants you can chat with, made by different companies, with different strengths.
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What's the Difference Between an AI Assistant and an AI Agent?
An AI assistant mostly talks to you; an AI agent can take actions and do things for you.
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What's the Difference Between AI and a Robot?
AI is the thinking software; a robot is a machine you can see. Sometimes they work together.
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How Does AI Answer Questions?
AI answers by finding patterns it learned from lots of examples, then building an answer word by word.
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