Openings that earn attention

The first three minutes decide whether a class leans in or checks out — spend them on a question, not an announcement.

The idea

A class arrives with their attention somewhere else. Your first move either opens a gap they want closed, or tells them nothing is at stake yet. “Today we’ll learn about air pressure” is an announcement — it names the destination but gives no reason to travel. A hook does the opposite: it plants a question the lesson will answer, and rides that curiosity into the real work.

Interactive · the attention curve

A sample lesson on air pressure. Pick an opening move and watch the class’s attention over the first five minutes.

Pick an opening move above. Start with “announce the topic” to see the room drift.

Minute

Attention now

Carried into the body

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How it works

An opening does one job: create a question the class wants answered, then hand that question to the lesson. The move sequence:

1. Open a gap   surprise, a puzzle, or something that touches them
2. Let it sit   a few seconds of not-knowing is the point
3. Name the payoff  "by the end you'll be able to explain why"
4. Hand it off  the gap becomes the lesson's driving question

The four hook types are just different ways to open the gap:

Hook type	What it does
Puzzling case	A question with no obvious answer — “air weighs almost nothing, so how is it crushing this can?”
Prediction	Ask them to commit to a guess before the reveal; being wrong makes them want the answer.
	Show something that violates expectation — the can implodes on the desk.
Relevance bridge	Connect to their week — “your ears popped on the flight home; today explains it.”

When to use it

Any new concept or unit — the hook plants the question the whole lesson answers.
After a low-energy transition (lunch, an assembly) — a discrepant event resets the room fast.
A prediction hook when you want commitment and prior knowledge on the table before you teach.
The trade-off: a hook costs setup time and can misfire if it’s a gimmick unconnected to the objective. The fix is to always name the payoff so the curiosity points at the lesson, not away from it.

Watch out for

“Today we will learn…” A stated topic is a destination, not a reason to go. Open with the question, and let them discover the topic.
A hook with no payoff. A cool demo that isn’t tied to the objective spikes attention and then drops it — entertainment, not teaching. Always name the question it plants.
Answering your own hook too soon. The gap has to sit. If you resolve the surprise in ten seconds, there’s nothing left to carry them into the body.
Relevance that isn’t theirs. “This matters for your career someday” is abstract; “this is the tax on the paycheck you got Friday” is now. Anchor to this week.
Front-loading logistics. Handing back papers and reading objectives first spends your best three minutes on housekeeping. Hook first, admin later.

Worked example

You’re asked to teach a five-minute demo lesson in an interview. Weak opener: “Today we’ll cover air pressure and the gas laws.” The panel’s attention drifts before you reach the content. Strong opener: hold up a can, boil a splash of water inside it, cap it, and let it implode on the desk. Pause. “Nothing touched it. So what crushed it? By the end of these five minutes, you’ll be able to explain exactly what did — and why your ears pop on a plane.” You’ve opened a gap (discrepant event), let it sit, and named the payoff. Now every step of the lesson is the class chasing an answer they want. In the interview, say that out loud: “I opened with a discrepant event and planted the driving question, so the content lands as the resolution, not a lecture.”

Check yourself

1. Which opening is most likely to lose the room?

2. You do a dramatic demo, then immediately explain the science. What did the opening miss?

Open a gap, let it sit, name the payoff. Then teach the answer.