ChatGPT for Teachers: 8 Prompts That Save Hours of Prep Time

I've been teaching middle school science for eleven years. Lesson planning used to eat my Sunday evenings whole — three hours to build a solid unit plan, another hour to write rubrics, another half hour drafting parent emails I'd rewrite three times. I started using ChatGPT last fall and I genuinely got those hours back.

Here are the eight prompts I use every week. Not vague templates — the exact prompts, the way I type them in.

1. Lesson Plan from Scratch

When I'm starting a new unit and staring at blank paper:

"Write a 45-minute lesson plan for 7th grade science on [photosynthesis]. Include: learning objectives (using Bloom's Taxonomy verbs), a 5-minute warm-up, a 20-minute main activity, a 10-minute group discussion, and a 5-minute exit ticket. Students have mixed reading levels. Add a differentiation note for advanced learners."

I get a usable first draft in under a minute. I usually change the warm-up and tweak one activity, but the structure is done.

2. Rubric Builder

Writing rubrics from scratch is tedious. This prompt generates a complete 4-column rubric:

"Create a 4-point rubric for a 7th grade science lab report. Criteria: hypothesis quality, data collection, analysis/conclusions, and scientific writing. Use clear, student-friendly language. Format as a table."

Takes 30 seconds. I copy it into Google Docs and it's done.

3. Differentiated Versions of the Same Assignment

I have three IEP students and two gifted learners in the same class. This prompt saves me from writing five versions of everything:

"Take this assignment and rewrite it at three reading levels: below grade level (5th grade reading), on grade level (7th grade), and above grade level (9th grade). Keep the same learning goal. Here's the original: [paste assignment]."

One input, three outputs. I used to spend 45 minutes on this.

4. Parent Email Drafts

Parent communication is part of the job, but drafting sensitive emails takes emotional energy. I use this for anything beyond a routine update:

"Draft a professional, warm parent email letting [parent name] know their student [student first name] is struggling with [turning in lab reports]. Include: what I've observed, what I've already tried in class, and one specific thing the parent can do at home. Tone: supportive, not alarming."

I fill in the specifics and the email is ready in under a minute. I still personalize it, but the hard part is done.

5. Quiz Questions in Bulk

Generating assessment questions used to take me 20–30 minutes per quiz. Now:

"Write 10 multiple choice questions for a quiz on [the water cycle] at a 7th grade level. Each question should have 4 answer choices. Include one distractor that's a common misconception. After the questions, provide an answer key."

I get 10 solid questions and usually use 8 of them.

6. Socratic Discussion Questions

For Socratic seminars, I need questions that don't have obvious right answers:

"Generate 6 open-ended discussion questions about [climate change and local communities] for a 7th grade class. Questions should encourage critical thinking and have no single correct answer. Include one question that connects to students' personal experience."

These consistently spark better discussions than questions I'd write under time pressure.

7. Exit Ticket Generator

Quick formative assessment tied to the day's objective:

"Write 3 exit ticket prompts for today's lesson on [Newton's Third Law]. One should check factual recall, one should ask students to apply the concept to a real-world example, and one should ask them to identify one thing they're still confused about."

Three different levels of thinking, instantly. I pick whichever fits the day.

8. Sub Plans

Writing sub plans used to take me an hour when I was sick. Now:

"Write a detailed sub plan for a 7th grade science class. The sub does not have a science background. The activity should be self-contained, require no special materials, and keep 28 students engaged for 45 minutes. We're currently in a unit on ecosystems. Include: overview for the sub, step-by-step instructions, what to do if students finish early, and a list of 3 students who can help if the sub has questions."

Even when I feel terrible, I can get a solid sub plan out in five minutes.

The Bigger Picture

These eight prompts didn't replace my teaching — they eliminated the administrative drag that used to eat my planning time. I spend the recovered hours on things ChatGPT can't do: building relationships with struggling students, refining how I explain difficult concepts, adjusting in real time to what's landing in class.

If you want more prompts like these — including prompts for grading feedback, project rubrics, and IEP accommodation suggestions — I've compiled 200+ educator-focused AI prompts in a single pack.

Get the AI Prompt Pack for Educators → ($27, instant download)

It's the same kind of practical, tested prompts. No fluff, no theory — just prompts that work in a real classroom.