Timer
5:00
Classroom screen
Timer, name picker, groups, a noise meter and today's instructions side by side on one page. Put it on the projector, hide what you do not need and go full screen.
Name picker
Press Pick a name
Class list
One name per line. Saved in this browser only, never uploaded.
Groups
Uses the class list from the name picker.
Noise meter
Off
Asks for the microphone. Measured in the browser, never recorded. The scale is relative, not decibels.
Instructions
How to use the classroom screen
Open this page on the computer that runs the projector or the interactive whiteboard. Paste your class list into the name picker once; it stays in this browser for the next lesson. Hide the panels you do not need with the buttons at the top, then press Full screen. The panels grow with the screen, so the timer and the picked name can be read from the back row.
The timer counts down from 1 to 15 minutes or any length you build with the +1 min button, shows a bar that shrinks as the time runs out and plays a short chime at zero. The name picker calls on students at random and, with Skip names already picked, gives everyone a turn before anyone is picked twice. Groups shuffles the same list into a number of groups or into groups of a set size. The noise meter listens through the microphone and turns red when the room stays above the level you set. Instructions holds the task in large letters, so students can look up instead of asking again.
Frequently asked questions
Is my class list saved or uploaded?
It is saved only in this browser on this device, in its local storage, so the list is there again when you open the page tomorrow on the same computer. Nothing is sent to a server and there is no account. Clear the list field to remove the names.
How does the noise meter work?
When you press Start, the browser asks for the microphone. The meter then shows how loud the room is on a scale from 0 to 100 and turns red when the level stays above the line you set. The scale is relative to your microphone, not decibels, so set the line by listening to your class at a normal working volume. The sound is measured in the browser and never recorded or sent anywhere.
Can a name come up twice?
Not with Skip names already picked turned on: each name is picked once, and when everyone has had a turn the list starts again. Turn it off for a fully random pick every time.
How are the groups made?
The names are shuffled with your browser's random number generator and dealt out one by one, so groups never differ in size by more than one person. Choose a number of groups or a group size, then press Make groups again for a new mix.
Can I use it on an interactive whiteboard?
Yes. All buttons are big enough for touch, and full screen hides the browser bars. For drawing and writing by hand, open the whiteboard in a second tab.
Does the timer ring if I switch tabs?
Yes. The timer counts from the clock, not from the screen, and the chime is scheduled in advance, so it rings on time even when another tab or a presentation is in front.
More tools for class
Each panel has a bigger version with more options: the online timer, the random name picker, the team generator with skill balancing, the wheel spinner and the seating chart maker. For a puzzle to start the day, the daily puzzles are the same for the whole class. For a review game with teams, the classroom quiz shows your own questions on the projector with a timer and team points. Printable sheets are in the word search generator, the bingo card generator and the crossword puzzle maker.