“Go back. Choose again. Finish when you want.”
Set up
Explore navigation without a loop that traps the reader. C11's toy repair guide has LOOK and ASK pages; it promises no real repair. 15–20 minutes, with a one-return option.
Use scrap paper and three broad cards, or a familiar locally approved device. A short chosen part is enough. A wanted helper reads or constructs exactly as directed; name who chooses and who operates.
Run the session
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Read the complete START and destinations.
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Try a choice, then Back.
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Check the actual visible page is START, not a secretly cleared show.
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Try the other choice if wanted.
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Use Finish to close the run and return focus to the start control; retained authored work stays.
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Explain Clear is a separate choice that removes current/kept work only after inline confirmation.
Choose a route
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117a: Keyboard Enter/Space selects a choice and Back/Finish returns reliably with meaningful focus.
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117b: A broad Back card asks a paper operator to show START again; a Finish card ends the run without discarding the authored cards.
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117c: Partner-assisted selection uses an agreed “back/finish” signal, honoured immediately without requiring another branch. All explore control of a run; stop/rest is not an incorrect answer.
Notice and next help
If Back is confused with changing a link, place one ordinary rule beside the untouched page and show exactly which state changes. No autoplay, surprise sound or irreversible pupil action.
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