Why Your AI Prompts Aren't Working: The 4-Part Formula That Fixes It
Most teachers who try AI once and give up don't give up because the tool is bad. They give up because they typed something like "write a lesson on fractions" and got back a bland, generic wall of text that needed more fixing than writing from scratch would have.
The fix isn't a fancier tool or a secret prompt you buy off someone. It's a structure. Once you see it, you'll use it for everything — lesson plans, parent emails, report comments, the lot. Here it is.
The 4 parts of a prompt that works
Every strong prompt does four things: gives the AI a role, a task, some context, and a format. Miss one and the output drifts. Include all four and it lands.
Role — tell it who to be. "You are a Year 9 maths teacher in New Zealand." This one line quietly shapes vocabulary, examples, and tone. Without it, AI writes like a textbook from nowhere in particular.
Task — say exactly what you want, using a verb. Not "fractions" but "write a 10-minute starter activity that reviews adding fractions with different denominators." Vague in, vague out.
Context — the detail only you know. Your class, their level, what they struggled with last week, the curriculum link, how long you've got. This is the part everyone skips, and it's the part that makes the difference between "generic" and "usable."
Format — tell it what the answer should look like. "Give me a numbered list." "Keep it under 150 words." "Write it as a table with three columns." AI will happily ramble for a page if you don't tell it to stop.
Weak vs. strong — the same request
Here's what it looks like in practice.
Weak: "Write a lesson on the water cycle."
Strong:
"You are a Year 5 teacher in New Zealand. Write a 45-minute lesson introducing the water cycle to students who have never studied it formally. They're a mixed-ability class of 28 and two are English language learners. Include: a 5-minute hook, one hands-on activity using things I'd find in a classroom, and three quick questions to check understanding at the end. Format it as a simple timed run sheet."
Same topic. The second one gives you something you could almost teach as-is — because you did the thinking about your class, and let AI do the assembling.
A copy-paste template
Keep this somewhere and fill in the blanks:
"You are a [year level + subject] teacher in New Zealand. I need you to [specific task]. Context: [your class, their level, what they already know, time available, any constraints]. Please format the answer as [list / table / run sheet / short paragraph] and keep it [length]."
The one habit that beats any template
Treat the first answer as a draft, not a verdict. The real power is in the follow-up: "Make the hook more hands-on." "That's too wordy for Year 5 — simplify it." "Add a version for my two ELL students." You're not starting over each time; you're steering. Most teachers stop after one prompt and never discover that the second and third messages are where AI actually earns its keep.
Have a go this week. Take one thing you'd normally write from scratch, run it through the four parts, then push back on the answer twice before you accept it. What's the worst that happens?
TeachSmarterAI helps New Zealand teachers use AI tools effectively. New posts every week.