Live Classroom Quizzes: A Complete Guide for Teachers

A live classroom quiz is a short quiz that the whole class answers at the same time on their own devices, with the teacher seeing results as they come in. Students join with a code, the teacher moves through the questions, and by the end you know which ideas have landed and which need more work. Used well, live quizzes are a fast form of formative assessment and a reliable way to start a lesson with retrieval practice.

This guide covers when live quizzes are worth using, how to write questions for them, how to run the session, what to do with the results, and how to set one up in Duetoday.

The short answer

• Use live quizzes for a purpose: retrieval at the start of a lesson, a mid-lesson check, or an end-of-topic review.
• Keep them short. Five to ten questions is usually enough.
• Write questions with diagnostic wrong answers, so a wrong answer tells you something.
• Stop and discuss the question most students missed.
• Use the results to plan the start of the next lesson.

Why live quizzes work

Live quizzes combine two well-established classroom ideas.

Whole-class response. When every student answers, you see the spread of understanding across the class, not just the students who volunteer. This is the same principle behind mini-whiteboards and hinge questions.

Retrieval practice. Recalling information from memory strengthens it more than re-reading. Short, frequent, low-stakes quizzes on earlier content are one of the simplest ways to build that habit into lessons.

They also bring pace and energy, which helps with starters and end-of-week reviews. The risk is that the energy becomes the point. A quiz that is fun but does not inform your teaching is a missed opportunity.

When to use a live quiz

Moment	Purpose	Typical length
Lesson starter	Retrieve last lesson’s or last week’s content	4–6 questions
Mid-lesson	Check the explanation landed before independent work	2–3 questions
End of lesson	Check the objective and plan tomorrow	3–5 questions
End of topic	Review before an assessment and find gaps	8–12 questions
After a cover lesson	Check what students completed	4–6 questions

When not to use one: for content students have not been taught yet (unless you are deliberately diagnosing prior knowledge), or as a replacement for extended writing and reasoning tasks.

Writing good live-quiz questions

Live quizzes are usually multiple choice or short answer, which makes question quality critical.

Principles

• One idea per question. If a student gets it wrong, you should know which idea they missed.
• Plausible distractors. Each wrong answer should reflect a real misconception, not an obviously silly option.
• Short and clear. Students are answering against a clock; reading load should not be the challenge.
• Mix old and new. In starters, include content from earlier weeks, not only last lesson.
• Avoid trick questions and “all of the above” options that reward guessing strategies.

Using AI to write questions

AI is good at drafting questions quickly from your content, but needs checking. A reliable process:

1. Generate from your own material: your lesson plan, slides, a reading or a video you used.
2. Set the grade level and difficulty so the language is appropriate.
3. Preview every question and check the correct answer is right.
4. Check each distractor. Does it reveal a specific misconception? If not, replace it.
5. Cut anything ambiguous. If you have to explain the question, students will not read it the way you intend.

For more on question design, see AI for formative assessment.

Running the session

Before the lesson

• Create and preview the quiz in advance.
• Test the join process on your classroom display so the code is easy to read.
• Plan the response: what will you do if most students get question three wrong?
• Have a back-up for students without a device, such as pairing or mini-whiteboards.

During the quiz

1. Display the join code and give students a minute to join.
2. Set expectations: it is low stakes, answer honestly, no conferring unless you want pair work.
3. Start the quiz once everyone has joined.
4. Watch the responses as they come in rather than only the final scores.
5. Pause on the hardest question. Ask a few students to explain their thinking before revealing the answer.

After the quiz

• Note the two or three questions most students missed.
• Plan a short reteach or follow-up question for the next lesson.
• Reuse questions later in the unit as spaced retrieval.

Using the results

The most valuable part of a live quiz is what you do next. A simple framework:

• Most students correct: move on, and include the idea in a later retrieval starter.
• Split class: reteach briefly with a new example, then re-check with a similar question.
• Most students wrong: the explanation did not land. Reteach differently rather than repeating the same explanation.

Look for patterns in wrong answers. If most wrong answers chose the same distractor, that tells you exactly which misconception to address. See AI for formative assessment for how to act on the evidence.

Leaderboards and competition

Many live quiz tools show rankings. They can raise energy, but they also have downsides:

• Students may rush to answer quickly rather than think carefully.
• The same students tend to top the leaderboard, which can discourage others.

Options include showing rankings only at the end, using the quiz in pairs or teams, or emphasising class-wide improvement (“last time 60% got this right; let’s see now”).

Accessibility and inclusion

• Allow enough time for students who read more slowly or are working in an additional language.
• Keep text simple and avoid unnecessary jargon.
• Read questions aloud where helpful.
• Provide alternatives for students without devices.
• Use hints for younger or less confident students where your tool supports them.

How to run a live quiz in Duetoday

Duetoday’s teacher tools include live classroom quizzes. Teacher tools are designed for desktop, so create and host from a laptop or desktop connected to your display.

1. Open the teacher area and go to Live Quizzes.
2. Create a live quiz and choose your content: your own material, a YouTube link or a web page.
3. Set the options: question types, grade level, difficulty, language and whether to include hints. You can align questions to a standards set and add a note that students see when they join.
4. Generate and preview the questions. Check each one and adjust the settings or regenerate if something does not fit.
5. Start the session to get a join code.
6. Students go to duetoday.ai/join, enter the code and their name, and wait for you to start. Duetoday requires users to be at least 13.
7. Run the quiz at your pace. At the end you see final rankings.
8. Use the results to plan the next lesson.

For a quick reference, see the help article how to run a live classroom quiz in Duetoday.

Duetoday has no free plan; every account starts with a 7-day free trial (card required, cancel before day 7 to pay nothing), then $15 a month or $99 a year.

Frequently asked questions

How many questions should a live quiz have?

For a starter or mid-lesson check, four to six questions is usually enough. For an end-of-topic review, eight to twelve. Short and frequent beats long and occasional.

Do students need an account to join?

In Duetoday, students join by going to duetoday.ai/join and entering the game code and their name. Check your school’s policies on student use of online tools, and note that Duetoday requires users to be at least 13.

Should live quizzes be graded?

Generally no. Live quizzes work best as low-stakes checks. Students answer more honestly when they know the results are for learning, not for a grade.

What if students just guess?

Use plausible distractors so guessing is less effective, ask students to explain their answers for key questions, and focus on patterns across the class rather than individual scores.

Can I reuse quizzes?

Yes, and you should. Reusing questions a few weeks later is a simple way to build spaced retrieval into your teaching.

Further reading

• AI lesson planning: the complete guide for teachers
• AI for formative assessment: a practical teacher guide
• AI strategies to improve classroom participation
• AI grading for teachers: a practical guide
• Duetoday for teachers