Cold Calling in the Classroom: Fair Ways to Call on Students
Cold calling means choosing who answers instead of waiting for raised hands. Picking names at random can widen participation, but a name picker alone will not make a discussion feel safe. This guide gives a routine built on think time, a right to pass and teacher judgment, plus what the research does and does not show.
Why teachers cold call
In most classes a small group answers almost every question. The rest learn that if they wait long enough, someone else will speak. Cold calling changes that expectation: any student might be asked, so every student has a reason to think of an answer.
It also gives you better information. Hands-up answers come from students who already know. A cold call to a random student shows whether the class as a whole understood.
What the research says
Two findings are worth knowing before you start.
The first is about participation. In a study published in the Journal of Management Education, Elise Dallimore, Julie Hertenstein and Marjorie Platt compared classes with high and low amounts of cold calling. In classes with a lot of cold calling, significantly more students answered questions voluntarily, and that number grew over time. Students' comfort with taking part in discussions also increased in those classes, while it did not change in classes with little cold calling. The study looked at undergraduate business classes, so it does not prove the same result for every elementary or secondary classroom. The paper is Impact of Cold-Calling on Student Voluntary Participation (2013).
The second is about time. Mary Budd Rowe's work on wait time found that teachers typically wait less than one second for an answer after asking a question, and react to an answer in less than one second too. Her review, Wait Time: Slowing Down May Be a Way of Speeding Up! (1986), describes both pauses: the one after the question, and the one after a student answers. A one-second pause leaves little time to think, which is why the techniques below build in more.
Benefits and risks
| Benefit | Risk | How to handle it |
|---|---|---|
| More students prepare an answer | Anxious students dread being picked | Use warm calls and let students pass once |
| You hear from quiet students | The same few names still get picked | Pick names at random and show the draw |
| Better check of understanding | Wrong answers in front of peers | Ask questions with more than one good answer |
| Discussion moves faster | Students feel caught out | Never cold call to catch someone not listening |
Make the choice random, and show it
Students notice who gets called on. Without meaning to, it is easy to favor the students sitting close, the ones who make eye contact, or the ones you expect to get it right. A random draw removes that problem and, just as important, removes the suspicion.
Paste your class list into the Random Name Picker and keep Remove winner after pick on. Each name leaves the list once drawn, so everyone is called before anyone is called twice. Project the picker so the class can see you are not choosing. Press Reset when the list is empty or at the start of the next lesson.
If you prefer a fixed order for a whole lesson, shuffle the class list with the List Randomizer and call names in that order. Students still cannot predict their turn, but you can see at a glance who has spoken.
Ask first, then pause, then name
The order of the three steps matters. If you say a name first, everyone else stops thinking. If you ask the question to the whole class, wait, and only then draw a name, everyone has to prepare an answer.
- Ask the question to the whole class.
- Wait. Count to five silently before you do anything else.
- Draw a name and say it.
- After the student answers, wait again before you respond. The pause gives them room to add to their answer, and gives others time to react.
Five seconds feels long the first few times. It gets easier when students know the routine.
Techniques that keep it kind
| Technique | How it works | Good for |
|---|---|---|
| Think-pair-share | Students discuss with a partner for a minute before you call on anyone | Harder questions, new topics |
| Warm call | Tell a student privately that you will ask them the next question | Anxious students, English learners |
| Pass and return | A student can pass once, and you come back to them after two others | Any class, especially early in the year |
| Phone a friend | The student names a classmate to help, then gives the final answer | Building confidence |
| Many right answers | Ask for an example, an opinion or a prediction, not a single fact | Starting discussions |
| Write first | Everyone writes an answer on a whiteboard, then you call names | Checking the whole class |
Mistakes to avoid
- Using a cold call as a punishment for not paying attention. Students quickly link being picked with being in trouble.
- Correcting a wrong answer in a way that embarrasses the student. Thank them, ask another student to build on the answer, and come back to the first student later with an easier question.
- Asking a question with one right answer that only half the class could know. Start with questions everyone can attempt.
- Calling the same student twice while others have not spoken. A random list with removal prevents this.
- Skipping the explanation. Tell students why you cold call, and that being asked is not a sign that you think they were not listening.
When not to cold call
Some questions should stay voluntary. Skip cold calls for personal topics, like family or feelings, and for opinions on sensitive subjects, where a student may have reasons not to speak. Hold off right after a hard test or bad news, when the room needs a calmer start.
If a student has an education plan or accommodations that cover speaking in class, follow the plan. Talk to the student privately about how they would like to take part: a warm call, a written answer or a partner answer can all count as participation.
Introducing cold calling to a class
Explain the routine on the first day you use it. Something like: everyone might be asked any question, I pick names at random, you can pass once, and I care more about your thinking than about the right answer. Then start with easy, ungraded questions for the first week. Students relax once they see that being called on is ordinary, not a test.
FAQ
Is cold calling bad for anxious students?
It can be if it comes as a surprise. Warm calls, think-pair-share and the right to pass once make it much easier. In the college study above, comfort with discussion increased in classes with frequent cold calling.
Should I tell students I will cold call?
Yes. Explain the routine and the reasons. Students handle it better when they know it is for everyone and that the draw is random.
Does a random draw make it fair on its own?
Only with removal. If names go back after each draw, chance alone leaves some students waiting a long time. In a class of 20, it takes about 72 draws on average before every student has been picked at least once. Remove winner after pick fixes that.
How often should I cold call?
Often enough that it is normal. A few times in every lesson works better than one long round of questioning once a week.