Share it, and see what is missing
You have a working app. Now get a link to it, so that what you built stops being something only you can see.
Getting the link
Near the top of the AI Studio screen there is a control for publishing or sharing your app. Click it, confirm, and wait a few seconds. AI Studio puts the app on the internet for you and hands back a web address.
Open that address in a new tab and use the app the way a student would. Then send it to someone — a colleague, a friend, yourself on your phone. That is the point of this lesson: a thing you described in English, that other people can now open.
Google moves these controls around and renames them from time to time. You are looking for anything that offers to publish, share, or deploy. If you are offered a choice and one of the options mentions Google Cloud or billing, take the simpler one — you do not need it for this.
If you cannot find a way to share it
Skip it and move on — nothing later in this part depends on it. Part of what you are here to learn is that the free one-click option inside any AI tool is the first thing to change without notice. By the end of Part 1 you will have published the same app to an address that works whatever Google does next, which is exactly why the course does not stop here.
What you just did
You described an interactive teaching tool in plain English, an AI built it, you changed it by asking, and you put it on the internet. Fifteen minutes, no code, no card, no installs.
And what is still missing
Three things are wrong with what you are holding.
It is not your idea
You built the app we specified, not the one your students need. The next few lessons are about finding that idea and describing it well enough that you get it on the first attempt rather than the fifth.
Later in this part
The address is not yours
Whatever link you just got, Google issued it and Google controls it. It cannot become an address at your own institution, and you cannot move it somewhere else if the terms change.
Later in this part
You can only change it from that browser tab
Your app exists in one place: an AI Studio conversation. There is no copy on your computer, no record of what changed between versions, and no way back if a later edit makes it worse.
Part 3
The building was the easy part.
Choosing an idea small enough to finish, describing it precisely enough to get it right, and putting it somewhere it will still be next term — that is the rest of Part 1.