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·3 min read

AI Tools for Teachers: Lesson Prep, Materials, Study Aids

Four tools for the work around teaching, and the student-data line that decides which tier you may use.

Short answer

Teachers get the most from four tools doing four different jobs. ChatGPT (free, Plus $20/mo) drafts lesson plans, rubrics and differentiated versions of the same task. Gemini (free, our catalog lists Google AI Plus at $4.99/mo and AI Pro at $19.99/mo) makes sense when the school already runs on Google's tools. NotebookLM (free, higher limits with Google AI Pro) answers questions grounded in documents you upload, which is the honest way to let AI work from a textbook you actually use. Gamma (free, Plus $12/mo, Pro $25/mo) turns an outline into slides. The constraint that is not optional: student information is among the most protected data a school holds, so worksheets and lesson plans are safe to generate, and a named student's record is not something to paste into a free tier.

The useful question for a teacher is not which assistant is smartest but which jobs recur every week. Four do: writing plans, adapting one task for different levels, working from the material you actually teach, and building something students look at. Each has a tool that is better at it than a general assistant.

ChatGPT covers the drafting: a lesson plan from a learning objective, a rubric, or three versions of the same worksheet at different reading levels — free to evaluate, Plus at $20/mo when it becomes weekly. Gemini is the sensible choice when the school already lives in Google's tools, and our catalog lists its consumer tiers at Google AI Plus $4.99/mo and AI Pro $19.99/mo above the free tier. NotebookLM is the one worth explaining, because it does something the others do not: you upload the documents and it answers from them with references back to the source, free with higher limits under Google AI Pro. That is the difference between an assistant inventing a plausible summary of a topic and one working from the textbook chapter you assigned. Gamma turns an outline into slides, free with Plus at $12/mo and Pro at $25/mo.

ToolJobEntry priceCaution
ChatGPTPlans, rubrics, differentiated versionsFree / $20/mo PlusFree tier limits models and usage
GeminiGoogle-integrated helpFree / Google AI Plus $4.99/mo / AI Pro $19.99/moBest when the school already uses Google
NotebookLMAnswers grounded in documents you uploadFree / higher limits with Google AI ProOnly as good as the sources you provide
GammaOutline to slidesFree / $12/mo Plus / $25/mo ProCheck every generated slide before showing it

The line that must not be crossed is about data, not quality. Lesson plans, worksheets and explanations are safe to generate and rewrite; a named pupil's assessment record, an IEP or anything from a safeguarding file is personal data held in trust, and a consumer tier is the wrong place for it regardless of how good the model is. That also applies to uploading a scanned class list to ask for help organising it. Two smaller limits worth knowing: NotebookLM will answer confidently from whatever you upload, so a stale or partial source produces a confident wrong answer, and Gamma's slides always need reading before a class sees them, because a generated deck is a first draft with your name on it.

Assign one job per tool:

  • Writing plans, rubrics and answer keys → ChatGPT
  • Working inside Google Docs and Classroom → Gemini
  • Grounding answers in a textbook or paper you supply → NotebookLM
  • Turning an outline into something presentable → Gamma

Frequently asked questions

What is the best AI tool for teachers?
Different tools for different jobs. ChatGPT (free, $20/mo Plus) for plans and rubrics, NotebookLM for answers grounded in documents you upload, Gamma ($12/mo Plus) for slides, and Gemini if the school already uses Google.
Can teachers put student data into AI tools?
No — not into a consumer tier. Lesson materials are safe; a named pupil's record, an IEP or safeguarding material is personal data held in trust and belongs on a tier with proper handling, if anywhere.
Is NotebookLM better than ChatGPT for teaching material?
For questions about a specific document you have, yes, because it answers from your upload with references. For producing new material, a general assistant is the better fit.
Are AI-generated slides ready to use?
No. Gamma gives you a first draft with your name on it, so read every slide before a class does.

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