A live quiz with twelve students is easy. Everyone can read the board, the Wi-Fi copes, and if the tool caps the players at a dozen you will never notice. The same quiz with thirty-four students in a room built for twenty-eight is a different activity, and it fails in ways that have nothing to do with the questions.
Here is the checklist we use. It is in the order the problems show up.
1. Check the player cap before the lesson, not during
Several popular quiz tools limit the players per game on the free plan: ten on some account types, forty on others, fifty a month on another. You find out when the thirty-first student gets "game full" and the room erupts. Look the number up the day before; if your class is bigger than it, either pay or pick a tool that does not count players. We keep a dated table of the common ones.
2. Put the question on the student's screen, not just the board
In a full room, a third of the class cannot read the projector. In some tools the free plan shows students only four coloured buttons and leaves the question text on the board; the back row is then guessing which colour means what. A live quiz for a crowded classroom needs the question text and the options on every phone and every lab computer. It also means you can run the quiz with the projector off, which in a bright room with a tired bulb is a relief.
3. Take the Wi-Fi out of the scoring
This is the one most teachers do not know to check. When points depend on speed, a student on a weak signal starts every question a second late and finishes every question a second late. Over ten questions that is the difference between the podium and the middle of the table, and it has nothing to do with knowing the answer.
The fix is on the tool's side: the clock should start when the question arrives on that student's screen, not when you pressed the button, and the time the answer spends travelling back should be subtracted. Ask the vendor; if the answer is vague, assume it is not done. ClassTogether measures the reaction time this way for exactly this reason.
4. Hand out the code once
Every "type the new PIN" costs two minutes with a large group: the student who did not see it, the one who typed it wrong, the one whose phone locked. Four quizzes in a lesson is eight minutes gone, plus the ritual of getting everyone back from their phones.
The better pattern is a code that lasts the whole course. Students join once at the start; when you start a quiz, the question replaces whatever is on their screen, and when it ends they are back where they were. The same code also works for the quick poll and the exit survey, so the phones come out once and stay useful.
5. Name the students, not the devices
Student accounts are the other time sink: a password reset for thirty-four people is a lesson in itself. A name typed on joining is enough for a quiz. Say out loud that names and scores will be on the board, and let anyone who prefers use a nickname; you still know who is who from the register.
6. Keep the leaderboard running across the course
A per-game winner is fun once. A leaderboard that carries over from Monday's quiz to Friday's turns the quiz into something students come back for, and spreads the competition out: the student who lost today has two more days to climb. If the tool resets the scores every game, keep a running total yourself, or use one that keeps it for you.
7. Have a plan for the projector dying
It will, one day, mid-quiz. If the questions are already on the students' screens, you carry on and announce the ranking out loud. If they are not, the quiz is over. Point 2 again, from the other side.
The short version
- Know the player cap the day before.
- Question text on every student's screen.
- Timing that ignores the Wi-Fi.
- One join code for the whole course.
- Names, not accounts; nicknames allowed.
- A leaderboard that survives the lesson.
- A projector you could do without.
None of this is about the questions, and that is the point: in a crowded room the mechanics decide whether a live quiz is a highlight or a ten-minute argument about the Wi-Fi.