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Questioning & Participation

Cold Call

Ask the question before you name who will answer, so the whole class keeps thinking

Use this when

Ratings loading…Strong research

What is it?

Cold Call means you put the question to the whole class, give thinking time, and then choose who answers. You do not rely on hands up. It works because of the order: while nobody knows who will be chosen, everybody has to prepare an answer. With volunteers, five students do that work. With Cold Call, thirty do.

The steps

  1. Explain it before you first use it. Tell the class early in the year:
    I'll often pick who answers in here. It's not to catch you out — it's because everyone's thinking matters. If you're stuck, we'll work it out together.
    Without this explanation, being chosen can feel like a trap.
  2. Ask the question to the whole class. For example:
    Why does the ice melt faster on metal than on wood?
  3. Wait three seconds. Say nothing. Look around the room in a relaxed way. The class does its thinking in this silence, so do not talk over it.
  4. Then say the name. Use the same voice you would use for a volunteer:
    …Priya, what do you think?
    Put the name at the end, never the start. If you start with the name, everyone else stops thinking.
  5. Take every answer seriously. If it is right, ask a follow-up question. If it is partly right, build on it. If the student is stuck, stay warm:
    No problem. Listen to the next answer — I'll come back to you.
    (See Circle Back.)
  6. Spread your questions, and keep track. Mark a dot on the seating plan each time you choose someone. Over a week, everyone should be asked.

What it looks like

In the classroom

Ms Osei's class of 12-year-olds is halfway through a lesson on density. "So — the same stone, but now in salt water. Floats higher, sinks lower, or no change?" She counts three seconds in her head while she scans the room. "…Jonah?" Jonah blinks. "Er — higher? Because the salt water's… thicker?" "Right idea. What's our word for thicker, here?" "Denser." "Denser. So say the whole thing." "It floats higher because salt water is denser." Two questions later she calls on Amira, who freezes completely. "No stress. Listen to Dan's answer — I'm coming back to you." Dan answers. She returns to Amira, who manages it this time, quietly, in her own words.

How you’ll know it’s working

  • Students keep working on the question during the pause. The switching-off that follows "any volunteers?" disappears.
  • There is a real, silent gap of about three seconds between the question and the name.
  • The seating-plan tally shows everyone gets asked across a week, not a regular few.
  • Stuck students get a return visit later in the exchange instead of being passed over.

Pitfalls & fixes

  • Saying the name first. "Jonah, why does…" releases everyone else from thinking. Ask, wait, then name.
  • Using it to catch students out. If cold-calling drifts into a behaviour trap — choosing the daydreamer to embarrass them — students can start hearing every question as an accusation. Watch for this in yourself; the ambient attention benefit comes from anyone might be chosen, not from targeting.
  • Rushing the pause. If the name arrives half a second after the question, only your fastest thinkers can take part. Count an honest three seconds.
  • Only calling on strugglers. Students decode that pattern within days. Call on your strongest students too, and stretch them.

Weigh it up

Why it’s worth it

  • Every student rehearses an answer to every question, not just the volunteers. Participation stops being optional, and the ratio of minds working per question roughly quintuples.
  • Used on review questions, it doubles as retrieval practice: the whole class practises remembering, with the added benefit of hearing the answer confirmed.
  • It gathers assessment data all lesson long. Each answer samples the room's actual understanding, where volunteers only ever sample its confidence.
  • Attention rises across the room because anyone might be chosen — a behaviour and focus benefit that needs no correction to achieve.
  • Over weeks it builds a culture where thinking is everyone's job, and quieter students get a route into the conversation that hands-up never gave them.

The costs

  • The raised alertness has an edge: some students feel it as anxiety in the early weeks. Softening moves (private pre-warning, a Turn & Talk first) reduce it without removing it.
  • It is slower than taking eager hands.
  • It needs weeks of consistent, warm use before it feels like air, so it cannot be dropped cold into an unfamiliar class.
Worth it when
the same few hands dominate; questions to the room are met with silence; attention drifts during whole-class teaching; or you want participation, retrieval and assessment data out of the same five minutes.
Think twice when
you have not yet built trust with the class, or for individual students in acute anxiety. Build safety first with rehearsed formats like Show-Me Boards and Turn & Talk, then introduce names.

Adaptations

  • Early years / lower primary: let them rehearse in pairs first, then choose someone to report: "Tell your partner… now, Sam, what did you two say?" Answering for the pair halves the exposure.
  • Primary: name-sticks or cards can scaffold the randomness at first. Move beyond them when you can — choosing who and when deliberately is where the value is.
  • Post-16 / adult: present it as a seminar norm: "I'll bring people in by name." At this age it reads as professionalism.
  • Practical subjects: cold-call the watch-and-explain moments: "Freeze — Leah, what should his back leg be doing?"

Where this comes from

Strong research

Codified for schools by Doug Lemov in Teach Like a Champion; the practice itself is old — law schools have used a version for over a century as Socratic questioning.

Sources
StrongRosenshine, Principles of Instruction: effective teachers ask large numbers of questions of all students, not volunteers.
Promisingparticipation research: when every student can be asked, every student rehearses an answer. The specific format has not been trialled in isolation.

Related techniques

Wait Timethe three seconds inside step 3. Cold Call without it punishes slow, deep thinkers.Circle Backthe partner move for "I don't know". Together they close every exit except thinking.
Set How They'll Answerannounce whether a question is cold call, hands, or boards. Call-outs fade.Write-up coming.
Turn & Talkthe pressure valve: rehearse in pairs first, then cold-call with confidence high.Write-up coming.
Show-Me Boardsfor when you want everyone's answer at once, not one spoken answer.Write-up coming.
classtested.com/techniques/cold-call — steps, signs it’s working, and trade-offs on one page. Ratings and discussion online.

Ratings & discussion

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