AI for Lesson Planning: 12 Prompts and the Context They Need

Most lists of AI prompts for teachers share the same flaw. They give you the words to type and skip the part that decides whether AI for lesson planning produces anything usable: the context (the facts about your class and your materials that the model cannot see unless you supply them). A prompt without context produces a plan for an average class.

Below are 12 lesson planning prompts I have seen work, each with the context it needs. They work in any AI lesson planner, from a chat window to a planner that stores your class.

Why the context matters more than the prompt

When you use AI for lesson planning, a language model (the technology behind these tools) predicts the most likely text given what it was shown. Show it "Grade 7, fractions, 45 minutes", and the most likely plan is a generic one. Show it your class description, your textbook pages and last lesson's exit ticket, and the most likely plan is one that fits those facts.

So every prompt below has two halves: the instruction, and the context line that says what to attach first. Skip the second half and the first half is decoration.

AI for lesson planning: 12 prompts and the context each one needs

1. The full plan. "Plan a 45-minute lesson for this class on [topic] using only the attached pages. One objective a student can show, a starter linked to last lesson, two activities with named groups, an exit ticket." Context: class description, textbook pages, what last lesson covered.
2. Objectives first. "Suggest three possible objectives for a lesson on [topic] from these pages, each one starting with 'Students can'. Then tell me which one fits a single lesson." Context: the pages and the grade.
3. The starter only. "Write a five-minute starter that connects [last lesson's skill] to today's [topic], usable with mini whiteboards, no printing." Context: what last lesson covered and what the exit ticket showed.
4. Differentiate what I have. "Here is my main activity. Rewrite it for three groups: the six students who [specific gap], the middle group, and two students who finish early. Keep the same task and change the support and the stretch." Context: the activity and the group descriptions from the class profile.
5. Cut it to time. "This plan is 60 minutes of activity for a 45-minute lesson. Cut it to 45 by shortening, not by removing the check for understanding. Show me what you removed." Context: the plan itself and the real lesson length.
6. Vocabulary in two languages. "List the eight key terms in this lesson with a one-line student definition in English and Arabic, in the order they appear." Context: the lesson plan and the language of the class.
7. The check for understanding. "Write a three-question exit ticket for this objective: two short answers and one 'explain why' question. Add what a correct answer looks like for each." Context: the objective, in full.
8. Questions by level. "From these pages, write nine questions: three recall, three apply, three explain. Label them. Use numbers and examples from the pages, not new ones." Context: the pages.
9. Plan from the scheme. "Here is unit 4 from our scheme of work and the nine lesson slots I have. Propose a lesson sequence, one line per lesson, with two checkpoints." Context: the scheme unit and the real count of lessons.
10. Fix a plan that failed. "Here is yesterday's plan. Activity 2 did not work because [reason]. Replan tomorrow's lesson to reteach that part in ten minutes and then move to [next objective]." Context: yesterday's plan and your honest note on what happened.
11. The substitute version. "Rewrite this plan so a cover teacher with no subject knowledge can run it: every instruction in plain words, answers included, no practical." Context: the plan and what is physically in the room.
12. Check my plan. "Read this plan against the class description. List anything a student in this class could not do, any timing that does not add up, and any activity that needs equipment I have not listed." Context: the plan, the class description, the equipment list.

Prompt 12 is the one I would keep if I could keep only one. It turns the AI from a writer into a reader of your plan, and that is where the real mistakes surface.

A worked example: Grade 7 fractions, prompt 4

A Grade 7 maths teacher has a paired activity: twelve fraction addition questions with unlike denominators. The class description says: six students cannot yet find a common denominator, a middle group of twenty, two students who finish any worksheet in half the time.

Prompt 4 with that context produced three versions of the same twelve questions. The six students got the common denominator for the first eight questions and had to find it for the last four. The middle group got the original. The two fast finishers got three extra questions with three fractions each. Same task, three supports. Without the context, the same prompt wrote "support lower-ability students as needed", which is not a plan.

What these prompts cannot do

I want to be clear about limits, because marketing around AI for lesson planning rarely is.

Every row on the right is context. In a chat window you type it every time. Better tools store it so the prompt stays short and the context stays complete. If you are still using a plain chat, this post on ChatGPT lesson plans explains what you lose; for a check to run on any generated plan, see AI lesson plan generator: how to get a plan your class can use.

How TeachBuddy AI helps

TeachBuddy AI was built for this way of using AI for lesson planning: the context half of every prompt above is already in place. The class description is a classroom profile you wrote once and every generator reads. The pages come from your Resource Library by page range, scanned books included. Last lesson's outcome comes from the two-minute reflection you approved after teaching. So the lesson plan generator needs only the topic, and prompts 2, 7 and 8 are built in: suggested objectives you edit, a quiz or questions from the plan in one click.

Standing instructions like prompt 6 ("key terms in English and Arabic") go into planning rules for that class, typed once. Buddy, the chat assistant on the home page, takes prompts 4, 5, 10 and 12 in plain words and shows a summary before it creates anything. The AI drafts; you decide. Free for teachers.

Frequently asked questions

What is the best AI prompt for a lesson plan?

The one that names the class, the source pages, the objective, the format and the time. Of the lesson plan AI prompts above, prompt 1 is a good shape. The words matter less than the context attached to them.

Can an AI lesson planner use my textbook?

Only if you give it the pages. In a chat window that means pasting text; in a planner with a library, picking a page range. Either way, say "use only the attached pages" so the model does not invent content.

Are AI lesson plans safe to use in class?

Safe, yes. Finished, no. Run prompt 12 on every plan, and treat the output as a draft from a capable colleague who has never met your students.

Want the context stored so the prompts stay short? Create a free TeachBuddy AI account, describe your class once, and try prompt 1 on your next topic.