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Capstone — Build a Concept Manipulative

Capstone · build & submit · about 2–4 hours.

You have spent this course using interactive tools that make an agent concept click. Now you build one. Pick a single concept from AI Agents and make an interactive web page that teaches it to someone else — the same kind of input-and-output demo you have been driving all along.

The brief

Build a single-page interactive manipulative that teaches one AI Agents concept. It must:

Your concept: pick one

Choose a concept you understand well enough to teach. A few that lend themselves to a manipulative:

The agent loop Calling tools The ReAct pattern Memory Planning before acting Routing to the right tool Guardrails & reliability

One concept, done clearly, beats five done shallowly.

Follow the lifecycle

This is the same build loop from Intro to AI, applied to an agent concept: plan it → build it → test & submit. The checklist near the bottom tracks these three stages.

How the starter file works

The editor below opens with a working example: a text input takes a user's request, and the page decides which tool an agent would call based on keywords — live, as you type. Read it as three moves — the pattern behind every routing decision in this course:

Build it here

This is your workbench. Edit the code on the left and it runs live on the right — every change shows instantly, no download needed. It autosaves in this browser as you go.

The code editor needs JavaScript enabled. You can still build your manipulative in any text editor with an AI assistant.

Upload your project files

Your capstone is one HTML file — but if it pulls in extras (an image, a data file, a screenshot for your teacher), upload them all here so your whole project is in one place. Sign in first; only you and your teacher can see these files. This is separate from the one-click Submit for grading above, and a good way to hand in a project you built outside the editor.

File upload needs JavaScript enabled. You can still Download .html above and submit from your student portal.

Track your progress

This checklist needs JavaScript enabled. The three stages above are the checklist.

Definition of done

Your capstone is complete when it satisfies all of the following criteria:

Submitting: when your manipulative is ready, sign in and click Submit for grading in the toolbar above — it sends your code straight to your teacher. (You can also Download .html to keep a copy, or submit later from your student portal.) A passing score unlocks your certificate.

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