Classroom mode
Run it in class
How can one eye miss a patch while the world still looks complete?
Show of hands — before you project anything
Predict a new case: if an outside target starts on one side, which retinal side receives it after the light paths cross?
- A Way more than you'd guess
- B About what you'd guess
- C Way less than you'd guess
Count the votes out loud. Hold them to it — then watch.
Project it (fullscreen)
Discussion prompts
- Predict a new case: if an outside target starts on one side, which retinal side receives it after the light paths cross?
- What must be missing at a nerve-cable doorway for light there to make no visual message?
- How could filling-in help in ordinary life and also occasionally fool you?
Where it shows up in real life
- Covering one eye while looking through a toy telescope
- An eye doctor mapping the optic disc and visual field
- The brain continuing wallpaper texture across missing information
A prediction-first worksheet — no answer key.
zero prep · no login · any projector
Winding down at home? Family mode ·
Explore every question
How can one eye miss a patch while the world still looks complete?
Predict — what do you think will happen, and why?
Talk about it
- Predict a new case: if an outside target starts on one side, which retinal side receives it after the light paths cross?
- What must be missing at a nerve-cable doorway for light there to make no visual message?
- How could filling-in help in ordinary life and also occasionally fool you?