How to call on students randomly, without the anxiety

When you ask a question and wait for hands, the same few students tend to answer. Calling on students at random spreads the talking around the room. Done carelessly, it can also make students nervous. This guide covers what the research says, how random calling differs from cold calling, and a routine that keeps the benefits without the stress. To try it, open the random name picker for teachers, which gives every student a turn before anyone is picked twice.

Why random calling helps

Volunteering rewards the students who are already confident. In large introductory biology courses, men answered more than their share of questions when the instructor asked for volunteers. In courses that used random calling, that gap between who was enrolled and who spoke disappeared (Eddy, Brownell and Wenderoth, 2014).

Random calling also changes how everyone listens. If anyone could be asked next, everyone has a reason to think about the answer, not only the student whose hand is up.

That effect shows up with younger students too. In a 2006 University of Florida study, high-school maths teacher Paige Allison compared 15 classes that used a hand-held random name generator with 11 classes that did not. Students who were picked could take a free pass, with no penalty, if they didn’t know the answer. Overall participation was about the same in both groups. But in focus groups, students said they came to class better prepared and concentrated more: “They felt they had to tune in more because they knew they had a chance of being called on for every question.”

Why it can backfire

The research also has a warning. About 60% of students in two large biology courses said random or cold calling made them more anxious (Cooper, Downing and Brownell, 2018). An anxious student thinks less clearly, so a tool meant to include people can push some of them away.

The answer is not to stop calling at random. It is to change what happens around the call.

Cold calling vs random calling

The two terms are often used as if they mean the same thing, but they don’t.

Cold calling means the teacher chooses who answers, whether or not they raised a hand. In Teach Like a Champion, Doug Lemov describes Cold Call as a routine: ask the question, pause so everyone thinks, then say the name. Done well, it is predictable and warm, not a trap.

Random calling takes the choice away from the teacher. A name is drawn by chance, so nobody can feel singled out and nobody can coast. Many teachers do this with equity sticks: each student’s name goes on a lollipop stick in a cup, and the teacher draws one. When drawn sticks go into a second cup, everyone gets a turn before anyone repeats. Fair rotation in a name picker is the digital version of that second cup.

You can mix both. Use random calling for open questions where everyone has had time to think, and cold calling when you want to check on a particular student.

A calmer routine for random calling

1. Give thinking time first. Ask the question, then give everyone 30 seconds to think or jot down an idea. Nobody is caught with an empty head.
2. Let pairs talk before you pick. In think-pair-share, students compare answers with a neighbour first. When you call on someone, they can share what their pair came up with, not only their own idea.
3. Call on groups, not just individuals. Pick a group and let them choose who speaks. The wheel decides which group; the group decides the voice.
4. Get help, then come back. Let a student say “I’m not sure yet”, take an answer from a classmate, then return to the first student to repeat or build on it. Lemov calls this No Opt Out: a student who can’t answer yet gets help, but the exchange ends with them giving the answer. The Florida study used a gentler rule: picked students could take a free pass with no penalty.
5. Use fair rotation. Students notice when the same name comes up twice while others wait, and it feels unfair even when it is pure chance. With fair rotation, everyone is picked once before anyone repeats, so students can see the round is fair. It also helps you: you know who has spoken this lesson without keeping a tally.
6. Make the randomness visible. Spin the wheel on the projector where everyone can see it. When students watch the wheel land, they know you did not pick on anyone, and a hard question feels less personal. The spin also gives the whole room a few more seconds to think.

When a student freezes

Even with thinking time, some students will freeze when their name comes up. How you respond in the next few seconds decides whether random calling feels safe.

• Wait a little longer. Count to five in your head before you step in. Many students only need a moment.
• Shrink the question. Ask for one part of the answer, or offer two options to choose from.
• Point back to their pair. “What did you and your partner talk about?” is easier to answer than a question asked cold.
• Get help, then return. Take an answer from someone else and come back to the first student a minute later, so they finish with a correct answer rather than a silence.
• Keep your tone calm and friendly. A frozen moment is normal, not a failure. When you treat it calmly, the rest of the class learns that being picked is safe.

If one student freezes often, talk to them outside class. Some students do better when they know the question in advance or can write their answer first.

Setting it up in Piknado

The classroom name picker is built for this routine:

• Save a list for each class once, then switch between classes in one tap.
• Fair rotation is built in: a picked student leaves the wheel until everyone has had a turn.
• The Make groups tab makes random groups and remembers past ones, so students meet new partners for think-pair-share.
• It works full screen on a projector, and your class lists stay in your browser.

For a one-off list, such as a club or a workshop, the random name picker wheel does the same when you switch on “Remove winner after spin”.

Quick answers

Is random calling fair to shy students?

It can be fairer than hands-up, because quiet students get the same chance to speak. Pair it with thinking time and the option to pass, so being picked is not a test.

Is random calling the same as cold calling?

Not quite. In cold calling, the teacher chooses who answers. In random calling, a name is drawn by chance, which can feel fairer because nobody is singled out.

How often should I use it?

Mix it with other methods. Random calling works best for questions where every student has had time to prepare an answer.

Ready to try it in your next lesson? Open the random name picker for teachers, add your class, and spin.