Gemini is on by default in Classroom: what to do this term

September 20, 2026

I found out the way most teachers did, which is to say from a student. Two weeks into term a fifth grader asked why there was a new tab in Classroom that would make her flashcards. Google switched Gemini on for students of every age starting August 10, on by default, and if nobody in your district touched the setting, then doing nothing was the decision to switch it on.

What actually changed on August 10

Google posted the announcement on August 4, 2026 and began the rollout on August 10 on the web, then August 17 in the Classroom mobile app. The change is short to state: Gemini in Classroom, which had been a teacher tool and then, from December 1, 2025, a tool for higher education students aged 18 and over, now works for K-12 and higher education students of all ages.

The setting is on by default. Google’s own wording on the admin help page is that Gemini in Classroom is on by default for users of all ages, with one exception: if your admin had already turned it off for students under 18, it stays off until somebody changes it.

What a student sees is a Gemini tab inside Classroom. From it they can pick a specific class and assignment, and the model pulls in the title, the assignment instructions and the curriculum materials you attached as context. Google’s help page lists the student starter tiles: Help me learn, Quiz me, Make flashcards, Create a study guide.

It applies to Education Fundamentals, Standard and Plus, which between them covers most school Google domains. One catch is worth knowing: the tab only appears if at least one of the Gemini app or Gemini Notebook is also on. With both off, the tab stays hidden even when Gemini in Classroom is set to On.

Who can switch it off, and it is not you

There is no per class toggle and no teacher opt-out. The control lives in the Google Admin console, which means it belongs to whoever administers your district’s Workspace domain. That is worth being blunt about rather than vague, because the first hour after a parent email is usually spent looking for a switch that does not exist in the teacher view.

If you are the admin, or you are forwarding this to them, the path is: Admin console menu, then Generative AI, then Gemini for Workspace, then Feature access in Classroom. Choose the organizational unit you want, set it to On or Off, and save. Google says the change can take up to 24 hours, though it usually applies faster.

The organizational unit part is what makes this usable. You do not have to choose between the whole district and nothing. Google’s own suggested approach for restricting younger users is to create an OU containing only those users and turn access off for that OU, which is how you end up with it live in high school and dark in elementary.

Education Week reported on September 1 that some principals learned about the change from news coverage rather than from Google. If nobody in your building has mentioned it, that is not evidence the setting was reviewed.

Three uses that hold up, two that hand you work you cannot mark

Retrieval practice from your own materials. Quiz me, pointed at the assignment you attached, generates questions from the text in front of the student rather than from the open internet. The grounding is the whole point, and this is the closest thing in the tab to something I would otherwise build by hand on a Friday afternoon.

Flashcards from a reading. Low stakes, low ceiling, genuinely faster than making them. A student who turns a chapter into twenty cards has at least read the chapter once with a purpose.

Re-explaining something you already taught. Guided Learning, which Google described in June as walking a student toward understanding rather than handing over the answer, is a reasonable fourth attempt after your three failed. It is not a first attempt, and it is not a substitute for noticing that three attempts failed.

Then the two that produce work you cannot mark.

Anything where the output is the assignment. Create a study guide is fine when the study guide is a study tool. It stops being fine when the study guide is what you collect. Once the deliverable and the generation are the same object, the grade measures the prompt.

Open-ended writing. Not because it cheats, but because the failure is invisible. A generated paragraph on the causes of the Dust Bowl reads exactly like a good one and tells you nothing about what the child understood.

What it changes about the homework you set this term

The honest version is that any homework a student can do inside Classroom is now homework they can do alongside a chatbot that has your assignment instructions loaded. That was already half true through the browser. It is fully true now, inside your own course page, and it is true for nine-year-olds.

I have not changed much about what I set. I have changed where the thinking has to be visible, and two adjustments have been worth the effort.

The first is asking for the intermediate object instead of the finished one. The notes, the outline, the three questions they still have, the wrong first attempt. These are cheap to produce honestly and oddly expensive to fake convincingly, because a plausible wrong answer requires knowing what a plausible wrong answer looks like.

The second is that anything I actually need to assess now happens in the room. Not as a gotcha, and not with the atmosphere of an exam, just as the default. Five minutes of writing at the start of a lesson, with the reading done at home, tells me more than a page produced overnight ever did.

What I have stopped doing is setting the same task as last year and then trying to detect the difference. Detection is a losing position and it sours the room. Set work whose honest version is easier than its dishonest version.

What to tell the parent who asks why their child has a chatbot

This question comes up, and it deserves a straight answer rather than a soothing one.

What I say: the tool sits inside Classroom, it works from the materials I put there, and Google states that Education users’ chats with Gemini are not human reviewed and are not used to train its AI models. That last point is what most parents are actually asking about, and it has a documented answer they can go and read.

What I do not say is that it is safe, because that is not a claim anyone can make about a text generator. What I can say is that it is supervised, which is a different and more useful promise. A generated explanation is worth exactly what the adult checking it makes it worth, and in my class the checking is the lesson rather than an afterthought.

If a parent wants it turned off for their child specifically, the honest answer is that I cannot do that and neither can they. It is an admin console setting scoped to organizational units, so it is a district decision. I give them the name of the setting, Feature access in Classroom, so the request they make is a specific one that somebody can act on.

And for the parent who mainly wants to know what their child retained this week, the chatbot is the wrong tool. I point them at a weekend routine for checking the week’s learning instead.

Frequently asked questions

How do I turn off Gemini for students in Google Classroom?

Only a Google Workspace administrator can. In the Admin console, go to the menu, then Generative AI, then Gemini for Workspace, then Feature access in Classroom. Select the organizational unit you want, set it to Off, and save. Google says the change can take up to 24 hours but usually applies faster.

Can a teacher turn Gemini off for just their own class?

No. There is no per class or per teacher switch. Access is controlled in the Google Admin console and scoped by organizational unit, so the smallest group you can turn it off for is an OU, not a class. Ask your Workspace admin for the Feature access in Classroom setting by name.

Is there an age limit for Gemini in Classroom now?

Not since the August 2026 change. Google’s announcement of August 4, 2026 extended Gemini in Classroom to K-12 and higher education students of all ages, where student access had previously been limited to higher education students aged 18 and over from December 2025.

Does Gemini use students’ work to train Google’s AI models?

Google states that Workspace for Education users’ chats with Gemini are not human reviewed and are not used to train its AI models. That commitment is published on Google’s education blog and in its Workspace privacy documentation, so it is something you can point a parent at rather than paraphrase.