How do I use a QR code message wall in my classroom?

Create a free wall at qrwall.live, name it after your question, and open the display link on the class projector or screen. The QR code shows on the wall itself; students scan it with their phone camera, type an answer or post a photo, and it appears on the screen in about a second. Setup takes under a minute.

Do students need an account or an app?

No. Students scan the code with their phone's camera and post from the browser — no app to install and no account to create. That's what lets an activity start in the first minute of class.

Can students post anonymously?

Yes, by default a post doesn't need a name, which usually gets more of the room to answer. If you need to know who wrote what — for an exit ticket, say — ask students to include their name in the answer. For training sessions, Professional adds optional contact capture that asks for an email or phone once per device and tells the participant clearly that you'll receive it.

How do I keep inappropriate posts off the projector?

On Professional, turn on the approval queue: every post waits until you approve it with one tap on your phone, so nothing reaches the screen unseen. Professional also adds AI moderation that screens text and images before they reach the queue. On any plan you can remove a post from the screen instantly.

Is the free tier enough for a class activity?

The free tier shows the 5 most recent posts at a time — each one appears live, then rotates off as new ones arrive. That works for a quick warm-up where you read answers as they come in. For an activity where you want all thirty answers on screen together, and a download afterwards, Premium is $10.99/month; the approval queue is on Professional at $19.99/month.

Can I use it for staff training or a teacher workshop?

Yes. Trainers use the same wall for questions from the room, expectations at the start, commitments at the end and photos of group work. Put it on the room's projector and the QR code on screen; on paid plans you download everything afterwards for your session notes.

For teachers, trainers and workshops

Three students answer out loud. The wall hears from all thirty.

Put a question on the projector with a QR code under it. Students scan, type an answer or snap a photo, and every reply lands on the screen in about a second — ready to read aloud, sort and discuss. No app, no student accounts.

Create a class wall

Free to start. No card, no commitment.

No accounts for students: Students open the phone camera, scan the code on the projector and post. Nobody signs up, so the activity starts in the first minute of class, not the fifth.
No name required to post: By default a post doesn't carry a name, which is what gets the quiet half of the room to answer. If you need to know who wrote what, ask them to sign their answer.
You decide what reaches the projector: On Professional, the approval queue holds every post until you tap yes on your phone, and AI moderation screens text and images before they get there.

A classroom message wall is a live display on the class projector or screen that students post short answers, photos and ideas to by scanning a QR code with their phone. There is no app to install and no student account to create: the question goes up with the code under it, and every answer appears on the screen within about a second, where the whole class can read it together.

Teachers and trainers use it for icebreakers ("introduce yourself in one sentence"), vocabulary and sentence challenges in language classes, exit tickets at the end of a lesson, expectation walls on the first day of a course, pledge walls for Earth Day or a school value, and staff training days. Posts don't need a name by default, which is why more of the room answers, and on Professional the approval queue lets the teacher decide what shows before it reaches the screen.

From question to thirty answers in three steps

Set it up during the break. In class, the only thing students do is scan.

STEP 1

Put the wall on the projector

Create a free wall, name it after the question ("One word you learned this week"), and open the display link on the class computer. The QR code shows on the wall itself, so there is nothing to hand out.
STEP 2

Students scan and answer

Phone camera, code, one tap. They type a sentence or post a photo of their worksheet or a drawing. Each post reaches the screen in about a second.
STEP 3

Read it back as a class

Switch to Grid to see every answer at once and pick out the ones worth discussing. On paid plans you download the whole wall afterwards to keep with your lesson notes.

Activities teachers actually run on it

Mostly words, some photos, and always a teacher in charge of the screen.

Icebreakers and first-day expectations

"Introduce yourself in one line" or "What do you want from this course?" on the first day. Everyone answers at once instead of going round the room, and you get a screen of names, hopes and worries to start from.

Vocabulary and sentence challenges

Language teachers post a word and ask for a sentence that uses it. Thirty sentences land on the projector together, which turns correction into a whole-class exercise instead of a private red pen.

Exit tickets and pledge walls

The last five minutes: "one thing you learned, one thing you're unsure of." Or a pledge wall for Earth Day or a school value — "I commit to…" — kept on the corridor screen for the week.

Staff training and back-to-school days

Workshop leaders and principals use the same wall for professional development: questions from the room, commitments at the end, photos of the group work on the tables.

Hands up gets three answers. A wall gets the room.

Ask a class a question and the same three students answer; the rest wait it out. It isn't that they have nothing to say — it's that saying it out loud, in front of everyone, costs more than staying quiet. Sticky notes fix that for a lesson and leave you with a pile of handwriting to read in the staff room.

The wall asks everyone at once, on the phone already in their hand, and doesn't attach a name unless you ask for one. Every answer lands on the projector while the question is still live, so the class reads its own thinking together and you teach from what's actually on the screen. On Professional the approval queue means nothing reaches the projector until you've seen it.

The same wall, in Grid

Every answer on screen at once — the view for reading back and discussing as a class.

Grid lays out every recent answer together, which is what you want when the class is comparing sentences or sorting ideas. Slideshow shows one post at a time, which suits a pledge wall running on a corridor screen. Switch between them from your phone mid-lesson; nobody rescans.

Classic look · Included with every plan

Class wall, hands up, sticky notes or a quiz tool

Common ways teachers collect answers from the whole room, and what the class sees.

	QR Wall	Hands up	Sticky notes	Quiz and poll tools
Everyone answers at once	Yes	No — a few voices	Yes	Yes
Free-text answers on the projector	Yes — live, in under a second	Spoken only	Yes, once you stick them up	Often word clouds or fixed choices
Photos of work and drawings	Yes	No	No	Rarely
Students need an account or app	No — scan and post	No	No	Varies by tool
Teacher approves before it shows	Yes — approval queue (Professional)	Not applicable	You read them first	Varies by tool
Kept afterwards	Download the whole wall (paid plans)	No	A pile of paper	Usually as a report

Pricing for a class, a course or a whole school

Try an activity free. Pay by the month when you want every answer on screen, or approval before anything shows.

Free

A quick warm-up or a trial lesson

$0

Five posts on screen at a time, rotating
QR code generation
Slideshow and Grid views
Every answer kept on screen and downloadable
Approval queue and AI moderation

Start free

Premium

A full class activity you want to read back

$10.99 / month

Unlimited posts on screen
Download every answer afterwards
Shareable gallery link
Remove QR Wall branding
Elegant look for the screen

Choose Premium

Professional

Younger students, schools and training teams

$19.99 / month

Everything in Premium
Approval queue: nothing shows until you tap yes
AI moderation on text and photos
Optional contact capture for training sign-ins
Custom branding and backgrounds
Priority support

Go Professional

Classroom wall questions

What teachers and trainers ask before putting a wall on the projector.

How do I use a QR code message wall in my classroom?: Create a free wall at qrwall.live, name it after your question, and open the display link on the class projector or screen. The QR code shows on the wall itself; students scan it with their phone camera, type an answer or post a photo, and it appears on the screen in about a second. Setup takes under a minute.
Do students need an account or an app?: No. Students scan the code with their phone's camera and post from the browser — no app to install and no account to create. That's what lets an activity start in the first minute of class.
Can students post anonymously?: Yes, by default a post doesn't need a name, which usually gets more of the room to answer. If you need to know who wrote what — for an exit ticket, say — ask students to include their name in the answer. For training sessions, Professional adds optional contact capture that asks for an email or phone once per device and tells the participant clearly that you'll receive it.
How do I keep inappropriate posts off the projector?: On Professional, turn on the approval queue: every post waits until you approve it with one tap on your phone, so nothing reaches the screen unseen. Professional also adds AI moderation that screens text and images before they reach the queue. On any plan you can remove a post from the screen instantly.
Is the free tier enough for a class activity?: The free tier shows the 5 most recent posts at a time — each one appears live, then rotates off as new ones arrive. That works for a quick warm-up where you read answers as they come in. For an activity where you want all thirty answers on screen together, and a download afterwards, Premium is $10.99/month; the approval queue is on Professional at $19.99/month.
Can I use it for staff training or a teacher workshop?: Yes. Trainers use the same wall for questions from the room, expectations at the start, commitments at the end and photos of group work. Put it on the room's projector and the QR code on screen; on paid plans you download everything afterwards for your session notes.

Ask the question once. Hear from the whole room.

Put the wall on the projector. Every answer lands on the screen while the question is still live.