A thunk is a short, odd question with no correct answer: the point is the reasoning, not the result. Put one on the board, give the class a minute to decide, then ask two or three pupils to defend what they chose. It works for a five-minute form time, a settling task, or the last few minutes of a lesson that finished early. Press Another when the argument runs dry.
Double-tap a pupil to pin them to the front ★
Teacher view only — never shown in Display or print.
One name per line. Names never leave this browser.
Tap the dot beside a pupil to cycle flags.
Copy the code somewhere safe, or paste one in and Restore — moves everything to another device.
No right answer — but you have to defend yours.