Manage the room
Put directions, work mode, voice level, and remaining time on the class screen so you do not repeat the same reminder.
Bouncy Balls classroom tools
Pick the tool for this moment.
Noise, time, participation, grouping, and short projector games. Every tool starts immediately and keeps classroom data in the browser.
Class screen
Project the current task, how to work, how loud, and time left.
Open the class screenQuiet challenge
Run a timed quiet round with live microphone feedback.
Start a quiet challengeDecibel meter
Read an estimated sound level with live min, average, and max.
Open decibel meterVoice level chart
Project or print the four expected voice levels for the class.
Open voice chartVisual timer
Show remaining time as one large, high-contrast color ring.
Open the countdownClassroom Timers
Choose from six projector-friendly countdown styles.
Browse timersRandom Name Picker
Spin a fair wheel for questions, turns, and classroom jobs.
Open name pickerGroup Maker
Turn a class list into balanced random groups locally.
Make groupsSeating chart
Turn a class list into a rows-and-columns seat map you can shuffle, swap, and print.
Open seating chartToken board
Give visible tokens toward a reward for one student or the whole class.
Open token boardClassroom Dice
Starts as one large d6. Add up to three dice and d8, d10, d12, or d20 faces.
Open classroom diceWord Guessing Game
Guess letters or characters on one screen. Built-in words follow the page language; custom lists support Unicode.
Open word guessingMemory Game
Flip two cards on one board. Match letters A-L or paste 3-12 class words.
Open memory gameSimon Memory Game
Copy a growing color sequence. This is not Simon Says.
Open Simon gameFree online teaching tools
Classroom tools and games, ready when the lesson changes
Bouncy Balls collects teacher utilities and short whole-class games. Open a class screen for the current task, work mode, voice level, and remaining time, or use a noise challenge, decibel meter, voice level chart, timer, name picker, group generator, seating chart, token board, classroom dice, word guessing game, memory match, or Simon sequence. Each page has one job.
Classroom ideas
When to use: free classroom tools for teachers
Increase participation
Pick students fairly for questions, jobs, presentations, or turns.
Fill a short gap
Project a dice roll, word guess, memory match, or color sequence when the class needs a shared pause.
How it works
From setup to result in three steps
No account or installation. Open the tool, choose the classroom settings, and keep control in this browser.
- 1
Choose the need
Start with noise, time, participation, grouping, or a short class game.
- 2
Open the tool
Every page puts working controls before explanatory content.
- 3
Reuse when needed
Bookmark recurring tools; no account setup is required.
Teacher tips
Use the tool as a clear classroom signal while keeping the learning task at the center.
- Introduce one tool at a time so its signal stays consistent.
- Use fullscreen when the whole room needs to see the result.
- Treat random results as organization, not student evaluation.
Questions and answers
Frequently asked questions
Are these classroom tools free?
Yes. Every tool is free to use without an account or paid plan.
Do I need to install anything?
No. They run in a modern browser on common classroom devices.
Which tools are included?
A class screen, noise challenge, decibel meter, voice level chart, timers, name picker, group maker, seating chart, token board, classroom dice, word guessing, memory match, and Simon.
Is classroom information uploaded?
No. Audio and entered names stay on the current device.
Can I use them on a projector?
Yes. The interactive tools include large displays or fullscreen controls.