Random selection is not one activity with ten variations. It is a way of removing a decision from the person who would otherwise make it, and the interesting question for each use is what that buys you.
Some of these are genuinely strong. Some are popular and worth skipping.
The Ones That Work Well
1. Cold calling. The strongest use and the most under-used. Draw rather than take the first hand, and participation rises — because the barrier to answering was never the difficulty of the question, it was the fear of being picked badly. Wheel of Names when the announcement should carry weight; Lucky Draw when you need speed for a register round.
2. Group formation. Removes the “can I work with Sam” negotiation entirely and produces mixed groups by default. Use pot balance for anything graded, and seat the strongest students before you draw.
3. Presentation order. Nobody minds presenting third. They mind being fourth when the first three were volunteers. Classroom Seater handles seating; a draw handles order.
4. Seating charts. Better used as a rotation than as a single event. Reassign on a fixed day and it stops being an imposition.
5. Cleanup duty. Small, recurring, and genuinely contentious. Task Matcher pairs people with tasks and reports anything unassigned rather than dropping it silently.
6. Peer review pairs. A review partner you did not choose produces more honest feedback than one you chose, which is the whole basis of the exercise.
7. Choosing between equal options. Which of two activities to start with, when both are fine. A draw ends the deliberation that was going to happen anyway.
8. Exit-question selection. “I will pick two people to answer the last question.” It is the one moment students reliably stop listening, and drawing it is what makes it worth listening for.
9. Exemplar selection. “Three examples of good answers and one that needs work.” Drawing the answers rather than asking for them produces more varied examples, and the imperfect one is usually the most useful to discuss.
10. Question authorship. Randomly assign which student wrote which question to check. Nobody ends up with their own, and nobody can say a question was chosen to embarrass them.
The Ones to Skip
Randomly selecting homework to collect. A student whose work is not finished is put in a position where the honest options are all bad, and the draw makes it arbitrary rather than fair. This idea circulates and it is worth understanding why it does not work: randomisation protects against unfair judgement, not against a structural gap. If work is missing, the fix is a deadline, not a lottery.
Randomly choosing who gets to present. If presentations carry a grade, you have randomised a grade. If they do not, use the draw freely — that is exactly what it is good at.
Random seating as a punishment. Framing an arrangement as something imposed produces the resentment randomisation is supposed to remove. Use it as routine rotation, not as a consequence.
Drawing during a lesson for consequences. Being sent out of the room is not a decision anyone should hand to a wheel.
The Preparation That Makes It Work
Type the list before the lesson, not during. Thirty names typed in front of thirty students wastes the moment and gives them time to object to the list.
Use full names where there are duplicates. Two students called Alex means the draw cannot distinguish them, and a near-miss looks like rigging even when it is not.
Save the list. Saved lists keeps up to five, works in the browser without an account, and syncs across devices if you sign in. One list per class per term is the useful unit.
Remove absentees before drawing. Otherwise you skip a name when it comes up, and the pool was not the pool.
The Framing That Does the Work
One sentence, said before the draw: “this is genuinely random, everyone has the same chance.”
That removes most of the pre-emptive anxiety. Students who believe the mechanism cannot be influenced do not spend the question planning their escape, and they stop needing to check whether you rigged it afterwards.
The stronger version is to let a student run the draw. They watch the whole sequence, they can see the list was not edited mid-lesson, and they stop needing to trust you. It costs thirty seconds and removes a suspicion you would otherwise spend the term managing.
What It Does Not Fix
Worth being precise, because the enthusiasm outruns the mechanism.
Equal chance is not equal outcomes. A class of thirty will not have every student picked equally often over a term. Randomness is uniform, not balanced. If someone asks why they have been picked less, the honest answer is that the gaps close over a long enough run — and if the requirement is balance, a rotation is the right tool, not a draw.
It cannot supply competence. Random selection for something requiring a particular aptitude will sometimes pick the wrong student, and no amount of fairness fixes a missing skill.
It cannot make a task equal. Random rotation of a ten-minute job next to a two-hour one produces a mathematically fair and practically unfair week. Make the tasks comparable first.
A small pool is not convincing. Drawing one of three names is visibly close to a decision. Drawing one of thirty is not. With small groups, use a rotation.
One Rather Than Ten
Pick the activity you already do most often, randomise that one for a fortnight, and notice whether anyone objects.
In my experience the objection does not come from the randomness — it comes from a student not being picked for something they wanted. That is a separate conversation, and a good one to have.
The fairness page explains the mechanism once, if anyone asks how you know it is actually random.