Test it

1. 3 min

   Pair up and swap devices. Say the silence rule and the reason for it.

2. 12 min

   Watch a classmate use your page. Write down where they stop. No talking.

3. 8 min

   Back to your own. Pick the single most useful change.

   What did you watch them do that you did not expect?

4. 12 min

   Make that one fix. One only.

5. 10 min

   Boards out. Tick anything that moved from the middle column into the first.

• Talking during the watch. An explained page always works, which is why explaining removes the only honest measurement in the period.
• Notes recording what the classmate said afterwards rather than where they stopped. Hesitation is the data; the verdict afterwards is shaped by who is listening.
• A fix that grows into a rebuild. One fix forces a decision about what mattered most.
• Pages that worked perfectly for the visitor. Ask the builder what they had written on the fourth line of their card.
• Boards with nothing ticked. Worth asking what they already knew, because sometimes the answer is real.
• Ask anyone whose classmate sailed through what they predicted on their card. Somebody who called where it would break has watched their own check work, and that is worth naming out loud.

• Stand next to whoever is narrating. It works better than repeating the rule to the room.
• If a pair has already talked through it, pair them with somebody else. A second run is still worth something.
• Somebody whose page came back finished and who cannot explain it is not a discipline problem. Ask them to change one thing and you will both find out where they are.
• Running short, name the fix instead of making it and do the board tick out loud. The silent watch cannot go; the rest of the period is commentary on it.

The print pack: this plan and its sheets

• board on its own
• drill on its own