In a hall of several hundred people, raised hands stop working: few people dare, and you cannot count them anyway. Phones do scale. With Diaposi Session, the whole hall joins from a QR code, answers the same poll at once and sends questions anonymously, and your join code stays on screen for latecomers.
What breaks at 100 people?
Raised hands, first. In a large hall few people dare, and you cannot count the ones who do. Eye contact goes next: you see the first rows and guess the rest. And one person speaking takes the whole hall’s time. Everything that works in a seminar room needs a version where everyone answers at once.
What scales to a full hall?
- Phones instead of hands. A poll gets an answer from the back row as easily as from the front.
- Neighbour discussion. Fixed rows still allow pairs. Two minutes with the person in the next seat, then a second vote.
- Anonymous questions. With upvotes, the hall sorts its own questions and you answer the ones most people share.
- A visible way in. Keep the join code on screen for latecomers.
What does a ten-minute block look like?
Six or seven minutes of explanation, a one-minute poll on the idea just covered, two minutes of neighbour discussion if the result is split, and a second vote. Then the next block. The structure repeats, which is the point: the hall learns the routine and stops needing instructions.
The individual techniques are in how to make a lecture interactive, and the quietest seats are covered in how to get quiet participants to join in.
How Diaposi Session helps
In Diaposi Session, the whole hall joins from a QR code with no account, and your join code stays on screen for the whole session, even while a poll is running. Everyone answers the same poll at once, questions come in anonymously and are voted up, and a slim line under your slide shows at a glance how the hall is taking what is on screen.
Diaposi Session is part of Diaposi, the EdTech platform for interactive and measurable learning. Discover Diaposi Session
Frequently asked questions
How do I keep a large lecture from using phones for something else?
- Give the phone a job every few minutes. A device with a poll to answer and a slide to follow is a tool. One with nothing to do is a distraction.
Does neighbour discussion work in fixed seating?
- Yes. Pairs need no movement: each person turns to the next seat. Keep it to two minutes and follow it with a vote, so the discussion has a purpose.
Is Diaposi free?
- Yes. Diaposi is free, and there is no paid plan today.
