Picking a page, an exercise, a question
“Open at the page that comes up” lands differently from “open at page 42”. The constraint comes from the screen, not from you, and the discussion ends there.
The number generator, between your bounds
A number between 1 and 30, between 0 and 100, between 12 and 19: you set the bounds, the tool draws inside them. And if you ask for several, you decide whether they may repeat.
Try it right now
This is not a screenshot: it is the tool itself, the one your class will see on the board.
Quantity
Set the range and generate!
How it works
-
The bounds are yours
Two fields, a minimum and a maximum. Both values are included in the draw. If you type them the wrong way round, the tool puts them back in order rather than refusing.
-
One number, or up to twenty
The “Quantity” field runs from one to twenty. The values come out together, shown side by side, rather than one after the other.
-
With or without repeats
A “No repeats” box guarantees all-different values. It automatically caps the quantity at the number of values available: between 1 and 5 you cannot draw six distinct numbers, and the tool knows it.
When it really earns its place
Drawing student numbers
In classes where each student has a number, a range from 1 to the class size replaces a name draw. To draw among present students by name, the wheel or the random picker is the better fit.
Making data for an exercise
Numbers to add, sort, convert or plot: twenty values come out at once, different for every class and every year.
What it does, and what it does not
The tool does not know your student list: it draws numbers, not names. A drawn number therefore takes no account of who is away today, unlike the wheel and the random picker.
Without the “No repeats” box, two draws can give the same value — that is the expected behaviour of drawing with replacement, not a fault.
The quantity stops at twenty. Beyond that the display would stop being readable from a distance, which is the whole point of drawing on a board.
Frequently asked questions
Are the bounds included?
Yes. A range from 1 to 10 can return 1 as well as 10. It is the most intuitive convention in a classroom, and the one a teacher writing “between 1 and 10” on the board expects.
Can it draw negative numbers?
Yes, the minimum accepts a negative value. That is useful for working on negative numbers, or for drawing a temperature between two bounds.
What if I ask for more values than exist?
With “No repeats” on, the quantity is brought down to the number of values available in the range. The tool then returns every possible value, shuffled, rather than failing.
What if I swap the minimum and the maximum?
They are put back in order automatically. A range typed “from 20 to 5” is treated as “from 5 to 20”, with no error message and no empty draw.
Pairs well with
This tool lives on the board’s canvas, next to all the others.