Dice Roller 1–6
One six-sided die with proper pip faces. Press Roll, or hit the spacebar. Use Fullscreen to fill a whiteboard.
Press Roll to throw the dice.
Press Space to roll again. Type notation like 2d6+3 or 4d6dl1 straight into the box.
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Made for the front of a room
This is the plain 1 to 6 die, the one in every board game box. The face shows dots rather than a numeral, because that is the die children learn to read, and counting the pips is frequently the whole exercise.
Fullscreen is the button that matters in a classroom. It blows the die and the total up to fill the screen, so a projector or interactive whiteboard is legible from the back row. The spacebar rolls again, which means you can stand away from the machine and keep the lesson moving.
Things teachers use it for
Turn order without an argument. Probability lessons where the class tallies forty rolls and compares the result to the sixth they predicted, and then has to explain why the tally is lumpy. Times tables where the die picks the multiplier. Choosing which group presents first, with nobody able to blame the teacher.
Add a second die with the plus button when the lesson moves on to sums. Two dice land on seven far more often than on two or twelve, and watching a class discover that from their own tally chart works better than being told. The dice probability page has the numbers behind it.
Beyond six sides
The quick buttons switch to a d4, d8, d10, d12, d20 or d100 if you need a wider range, and those show numerals on a polygon instead of pips. For the shapes themselves, see types of dice. For more than one die at a time with modifiers, the full dice roller handles it.
FAQ
How do I make the die big enough for a whole class to see?
Press the Fullscreen button under the roller. The die and the total scale up to fill the display, which is readable from the back of a normal classroom on an interactive whiteboard or a projector.
Can I roll two dice instead of one?
Yes. Use the plus button under Number of dice, or type 2d6 in the notation box. Both dice show their own face and the total appears underneath, which is what most board games need.
Does it work without an internet connection?
Once the page has loaded, the rolling itself runs entirely on the device with no connection needed. Refreshing the page after going offline will not work, so load it before the lesson starts.
Why does it show pips instead of numbers?
Because a die with dots is the one children recognise, and counting the dots is often the point of the exercise. Switching to a d8 or larger shows numerals instead, since nobody prints twelve dots on a face.