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Reference to physical models or tactile graphics in audio descriptions?

for

From: Robert Fentress
Date: Jan 18, 2018 2:32PM

I was wondering if anyone has seen this strategy used in lecture videos in
online courses that have a heavy spatial component, like geography:

Instead of trying to awkwardly insert detailed audio descriptions in a
video, an instructor could provide students with tactile graphics or models
of the things being displayed, and reference those in the audio
descriptions or timed text track with something like "graphic 4
displayed."

Anybody come across this technique before?

--
Rob Fentress
Senior Accessibility Solutions Designer
Assistive Technologies at Virginia Tech
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