GUIDE · 2026-07-23
How to use the Student Number Picker
The student number picker draws from 1 through the class size without retyping a roster. With repeats disabled, each result is removed from the pool until every number has appeared once.
How it works
Selects one number with equal probability from 1 through the entered class size
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Step-by-step
- 01Enter the class size; use the Random Wheel instead when the number list has gaps.
- 02Disable repeats for one pass through the class, or enable them to draw from everyone each round.
- 03Review history and remaining numbers, then reset for a new activity.
Worked example
INPUT30 students; repeats disabled
RESULT29 remain after the first draw
After 30 draws every number has appeared exactly once and drawing stops.Limits and checks
- For absent or non-sequential numbers, enter the exact list in the Random Wheel.
- For graded or consequential decisions, consider fairness factors beyond randomness.
Useful examples
- Choose the next student to present
- Create a no-repeat problem-solving order
- Randomly call on a student in class
Frequently asked questions
How does no-repeat mode work?
Each drawn number is removed from the remaining pool and cannot appear again until you reset.
What happens if I change the class size?
The draw history and remaining pool reset automatically to keep the next draw fair.