The Internet is awash with ways teachers can turn their iPhone into a document camera.
Here’s how I’ve done it – I can’t guarantee it’s the cheapest, but I would be surprised if anyone found an easier way.
I found the video below, which explains it very well.
Then I bought this cellphone holder to attach to my desk.
It will work fine with Wifi or you can just get a longer charging cord/USB cable to connect your phone to a desktop computer, and that works fine, too.
Thanks, Mrs. Young.