Random Student Groups
Split the class into groups nobody argued over. Type your roster, deal the names out, and keep the draw on screen so every student can see it was random.
Press Space to spin · 0 groups in play
The Random Student Groups wheel deals a class into working groups without a teacher choosing who sits with whom. The wheel starts with six group labels, Group A through Group F, so you can spin once per student and send each name to the group that comes up. Replace the labels with your student roster instead and the wheel deals the class out in a random order for you to split.
Two Ways to Make Random Student Groups
The tool supports two setups, and the one you want depends on whether you know the number of groups or the number of students per group.
| Setup | What goes on the wheel | How you spin | Best when |
|---|---|---|---|
| Spin the group | Group A, B, C, D | Once per student, reading down your roster | You know how many groups you want |
| Spin the student | Every student name | Once per slot, dealing across groups | You know how many students per group |
Spinning the group is faster with a printed roster in front of you, because you read names in order and the wheel supplies the destination. Spinning the student is better on a projector, because the class watches names come out one at a time and the reveal holds attention.
How to Split a Class Into Groups
- Decide the number of groups first. A class of 28 in groups of four needs seven groups. Trim the wheel to seven labels by tapping the extras off, or add labels in the editor.
- Spin once per student. Work down your roster and send each name to whatever group the wheel lands on.
- Cap the groups as they fill. Once Group A has four students, tap Group A to remove it from the wheel. The remaining students spread across the groups still open.
- Show the finished list. Read the Results list back, or keep it on the projector while students move.
Capping is the step teachers skip, and skipping it is why a wheel sometimes produces a group of seven and a group of one. The wheel has no idea how many students a group should hold, so removing a full group is the instruction that keeps the sizes even.
Group Sizes for Common Class Sizes
Most classes do not divide evenly, and the leftover students have to go somewhere. Adding the remainder to existing groups beats forming one undersized group, because a pair working alongside groups of four usually finishes early and drifts.
| Class size | Groups of four | Left over | Suggested split |
|---|---|---|---|
| 20 | 5 | 0 | Five groups of four |
| 22 | 5 | 2 | Three groups of four, two of five |
| 25 | 6 | 1 | Five groups of four, one of five |
| 28 | 7 | 0 | Seven groups of four |
| 30 | 7 | 2 | Five groups of four, two of five |
| 32 | 8 | 0 | Eight groups of four |
The group size generator works the remainder out for group sizes of three and five as well.
Making Group Work Actually Work
A random group solves the social problem and leaves the instructional one. Groups produce better work when every student has something only they are responsible for, which is why assigning roles inside the group matters as much as forming it.
- Recorder writes the group answer and is the only person who hands anything in.
- Reporter speaks for the group when you call on it, which stops the same confident student answering for everyone.
- Materials manager collects and returns supplies, which removes most of the movement from the rest of the group.
- Timekeeper watches the clock against the steps you posted.
Spin for the roles too. Type the four role names into the wheel, turn on no-repeat, and let each group draw. Students accept a role from a wheel that they would negotiate over for five minutes among themselves.
How Often to Reshuffle Groups
Groups need long enough to stop being strangers and short enough that nobody gets stuck. A common rhythm is a new draw every unit, which lands somewhere between two and four weeks in most courses, with the same groups held for the length of a project once it starts.
Reshuffling every single day sounds fair and rarely works, because groups spend the first ten minutes figuring out how to work together and never get past that. Holding groups for a whole semester goes the other way: a group that has stopped functioning in week three has fourteen weeks left.
Handling the Students the Wheel Should Not Decide
Place the students who need a specific placement before the first spin, then tap their names off the wheel. That covers an accommodation that depends on who a student sits near, two students you are keeping apart this week, and the child who has just joined the class and needs a group you have picked deliberately.
Doing the placements first and randomizing the rest keeps the visible part of the process random, which is what the class reacts to. Nobody watching a draw can tell that three names were assigned before it started.
Is the Draw Genuinely Random?
Every spin draws from the browser’s cryptographic random number generator and throws away values that would skew the split, so each segment holds exactly the same chance. The Random Student Groups wheel picks the winning segment before the animation starts, which means a slow classroom computer cannot change the outcome.
The tally under the Results list makes the fairness visible over a term. A student convinced they always land in the same group can read the count, and the count is usually the end of the conversation.
What the Wheel Stores
Your roster and your sound preference stay in the browser on that machine. The Random Student Groups wheel sends no student name anywhere, needs no account, and keeps no record of a draw beyond the Results list on screen. Restore starting list clears your roster from a shared computer in one click. The other classroom randomizers follow the same rule.
Random Groups and Mixed-Ability Grouping
Random grouping and deliberate mixed-ability grouping answer different questions. A random draw asks who should work together today and answers it without ranking anyone. Deliberate mixed grouping asks how to put a stronger and a weaker student in the same group on purpose, which is an instructional decision a wheel cannot make.
Most classrooms need both across a term. Use random draws for the everyday work, where the point is variety and nobody is being placed for a reason. Group deliberately when the task is designed around specific need — reteaching a concept, stretching students who already have it, pairing a newcomer with a patient partner.
The mistake worth avoiding is deliberate grouping that is really just tracking. Groups labeled by ability, kept in place all year, communicate a fixed judgment to eight-year-olds who are entirely capable of decoding it. Random draws in between keep the composition of the room moving.
Getting the Class Moved Without Losing Five Minutes
The draw takes thirty seconds. The furniture takes five minutes if you let it. Three habits keep the transition short.
- Post the groups before anybody stands up. Keep the Results list on the projector so students read their group from their seat rather than asking.
- Name the destination, not the group. “Group C, back table by the window” moves faster than “Group C, find each other”.
- Move one group at a time. Twenty-eight students standing up at once is the whole problem. Releasing groups in sequence takes the same total time and produces a fraction of the noise.
- Give a countdown with a number attached. “You have sixty seconds and I am counting” works; “hurry up” does not.
When a Random Group Is Not Working
Sometimes the draw produces a group that cannot function. It happens, and the honest response is to fix it rather than to defend the process.
Change one thing first. A group that has stopped working often needs a role assignment rather than new members — giving the student who has checked out the recorder job puts them back in the task without a public reshuffle. If the composition really is the problem, move one student and say plainly that you are moving them, rather than pretending a new draw produced it.
Do not rerun the whole draw to fix one group. Rerunning teaches the class that a draw they dislike can be appealed, and the next draw will be appealed.
Groups for Stations Versus Groups for Projects
| Factor | Station rotation | Multi-day project |
|---|---|---|
| Group size | Three to four, so every station has room | Three to five, sized to the roles |
| How long the group lasts | One class period | A week or more |
| Cost of a bad group | Low, it ends at the bell | High, it compounds daily |
| Redraw frequency | Every rotation is fine | Hold the group for the whole project |
| Roles needed | Usually not | Yes, assign them explicitly |
Station groups can be drawn fresh every time because the stakes reset at the end of the period. Project groups deserve one careful draw and then stability, since a group that has to rebuild its working relationship halfway through a project loses more than it gains.
Grouping a Class You Have Only Just Met
The first weeks of a school year are when random grouping earns most of its value and when a teacher knows least about who should sit with whom. A draw is the right default here precisely because you have no information to group on, and guessing produces worse results than chance.
Draw fresh groups two or three times in the first two weeks and watch what happens rather than planning around it. Short, low-stakes tasks make the observation cheap: a five-minute problem, a card sort, a quick sorting activity. By the third draw you will have seen most of the class work with most of the rest, which is the fastest way to learn who works well together.
Write down what you notice as you go, because you will not remember it in week six. Those notes are what turn later grouping decisions into something better than another coin flip.
Frequently Asked Questions
How do I make random student groups of a specific size?
Put the group labels on the wheel, spin once per student, and tap each group off the wheel as it reaches the size you want. The remaining students then spread across the groups still open.
Can the wheel fill all the groups automatically?
The wheel deals one name at a time rather than filling several lists at once. Deal across the groups — first name to group one, second to group two — and the groups finish within one student of each other.
What do I do with the leftover students?
Add them to existing groups rather than forming one small group. A pair working next to groups of four usually finishes first and loses focus.
Can I keep two students apart?
Yes, by placing them yourself before you spin and tapping both names off the wheel. The rest of the draw stays random.
Does the wheel remember my class list?
Yes, in the browser on that device. Teaching several sections is the exception: use Copy share link and bookmark one URL per class.
How often should I change the groups?
A new draw each unit suits most courses. Hold groups steady for the length of a project once it has started, because a group that is finally working should not be broken up mid-task.
Can students see that the groups were random?
Yes, and that is most of the value. Run the draw on the projector in fullscreen so the class watches the names come out.