AI Tools for Teachers That Work Right in Your Browser

What are the best AI tools for teachers right now?

Four categories cover almost everything teachers ask AI to do: a general chatbot, a teacher-specific platform, an in-document helper for feedback, and a PDF or worksheet tool. You rarely need more than one from each.

Prices and free-tier limits change every school year, so check each official site before recommending a tool to colleagues. If your school runs Google Workspace for Education, look first at what Gemini features your admin has already switched on; that may cover the general-assistant slot at no extra cost.

Our teachers hub keeps the non-AI classroom extensions in one place, and this guide focuses on what AI adds on top.

Is ChatGPT free for teachers, and is there an AI better than ChatGPT?

ChatGPT has a free tier anyone can use, and OpenAI has offered a free teacher-focused plan to verified US K-12 educators. Eligibility and end dates are set by OpenAI, so confirm on its site before relying on it.

Better than ChatGPT depends on the task, not the brand. In practice teachers pick based on where they already work:

Gemini

The natural choice in Google Workspace schools, because it sits beside Docs, Slides and Classroom and falls under your school's existing agreement with Google when your admin enables it.

Microsoft Copilot

The equivalent for Microsoft 365 schools, working alongside Word, PowerPoint and Teams.

Claude

Strong at long documents, such as reworking a full unit plan or summarising a policy handbook.

ChatGPT

The broadest general assistant, with a large library of teacher prompts shared online.

How do teachers use AI for lesson plans without losing quality?

Give the AI your constraints first and treat its output as a first draft. The more specific the context, the less time you spend fixing generic results.

1. Open your chosen assistant in a Chrome tab and pin it with right-click on the tab, then Pin, so it stays one click away.
2. State the grade, subject, standard code, lesson length and what students already know.
3. Ask for a lesson outline with a hook, guided practice, independent task and exit ticket, not a finished script.
4. Ask for three versions of the independent task at different difficulty levels.
5. Check every fact, date and worked example yourself; AI tools produce plausible-sounding mistakes, especially in maths steps and history dates.
6. Paste the edited plan into your usual Docs or Slides template, and save the prompt in a note so you can reuse it next unit.

Teacher platforms such as MagicSchool and Eduaide wrap this process in forms, which saves typing but gives you less control. A general assistant with a saved prompt often produces plans closer to your style.

Should teachers use AI to grade and give feedback?

Use AI to speed up feedback, not to decide grades. It is good at spotting patterns, drafting comments and aligning notes to a rubric; it is not reliable enough to assign marks that affect students.

• Good uses: drafting rubric-aligned comment banks, suggesting next steps for a common misconception, and rewording feedback so it is kinder or clearer.
• Risky uses: letting AI assign final scores, judging creative writing voice, or deciding whether work was AI-written. AI detectors produce false positives and should not be the basis for an academic-integrity decision.
• Privacy: strip names and identifying details before pasting any student work into a tool your school has not approved. Student privacy laws such as FERPA in the US, and GDPR in Europe, apply to what you share.

Extensions like Brisk work inside Google Docs, which is convenient because the comments land where students already look. Check with your IT team whether the extension is approved, since it needs access to the documents it reads.

For PDFs and scanned worksheets, Kami lets you annotate and comment directly on the file and return it through Classroom, with AI-assisted features on some plans. It pairs well with a comment bank you drafted with AI.

How can AI help differentiate lessons for every student?

AI is at its best rewriting the same content at different reading levels, languages and lengths. Chrome also has built-in accessibility features that cost nothing and need no account.

Always read the levelled version yourself. Simplification can drop the one idea the lesson depends on, and translations of subject vocabulary are not always the terms used in a student's home curriculum.

Students can use many of the same tools on their own; our companion guide on AI tools for students covers the learner side, including honest-use rules.

Can you add AI tools to Google Classroom and school Chromebooks?

Often yes, but on a managed school account your admin decides. Workspace for Education admins control which extensions install, which Classroom add-ons appear and whether Gemini features are on.

1. Try installing from the Chrome Web Store while signed in to your school account. If the button is greyed out or says the item is blocked, the admin has restricted it.
2. Check chrome://management to see whether your browser is managed and by which organisation.
3. Send IT the extension name, its Web Store link and what you will use it for; approved tools can be force-installed for your whole department.
4. For Classroom add-ons, look for the add-ons option when creating an assignment. What appears depends on your school's edition and admin settings.

Student Chromebooks are usually locked down harder than teacher devices, so a tool that works for you may not reach your class. Test on a student account before you plan a lesson around it.

Which Chrome extensions support AI-assisted teaching?

These extensions do the practical work around AI tools: marking up files, sharing links, securing accounts and keeping school apps running. Each is profiled on Find Extensions, and our methodology explains how we choose them.

If you teach online or run hybrid lessons, our remote work extensions collection covers video, screen sharing and scheduling tools.

What are the honest limits of AI tools in teaching?

AI saves time on drafts and variations, but it does not know your students, your curriculum's quirks or your school's rules. The judgement stays with you.

• Accuracy: outputs can contain wrong facts, invented sources and flawed worked solutions. Check anything students will learn from.
• Bias: examples and names can skew toward one culture or context. Edit them to reflect your class.
• Privacy: consumer AI accounts are not covered by school data agreements. Keep student names, grades and records out of them.
• Detection: AI-writing detectors are unreliable; talk to a student about their work rather than relying on a score.
• Cost creep: free tiers are generous until they are not. Avoid building a whole course on one tool's free plan.
• Workload: reviewing AI output takes time. For short tasks you know well, doing it yourself is still faster.

Other professions face the same trade-offs in different forms; compare notes with our guides for researchers and writers.