Classroom Warm-Up Generator
Generates a random academic lesson-starter task — a quick, low-prep way to open a lesson and get students thinking — distinct from the purely physical brain-break generator.
What this generator does
Draws a starter activity for the beginning of a lesson. The first five minutes decide the rest, and the reason they often go badly is that the starter was chosen while the class was coming in — which is the one moment there is no attention available to choose anything.
What you'll get
This generator draws from a hand-checked list of 8 entries. Here is a spread of 6 of them, so you can see the style before you generate:
- Write down one thing you remember from last lesson.
- In one sentence, predict what today's lesson might be about.
- List three words related to today's subject.
- Share one thing you found difficult last time, quietly with a partner.
- Write today's date and one goal for the lesson.
- Quickly sketch anything that comes to mind about today's topic.
A fixed sample of the list, not a live draw — your own results are picked at random from all 8, without repeating until the list runs out. Original HEKNO-curated academic lesson-starter tasks. Last reviewed 2026-08-17.
How to use this tool
- Press generate for a warm-up.
- Use it to open your lesson, or generate again for another one.
Common use cases
- Opening a lesson
- Substitute-teacher lesson starters
- Settling a class quickly
Randomness and fairness
Uniform across the list with the browser's cryptographic random number generator, with no subject or age filtering.
For how randomness is produced across the whole site, see how Generate Random works.
Practical tips
- Choose it the day before and write it on the board before the class arrives.
- A warm-up should need no explanation. If it takes two minutes to describe, it is not a warm-up.