Everything he’s writing is backwards. That’s not actually a problem in this case as [Michael] uses flip teaching.
But flip teaching is nothing to do with writing backwards, or at least not according to the linked Wikipedia article. So he is actually writing backwards?
Edit: Ah I see, the whole scene is mirrored, including him. I guess that could work, although then diagrams really have to be drawn backwards (assuming western L->R convention), and any computer generated text will have to be projected backwards on the whiteboard.
There are a couple of factors coming together here that require some explanation in order for the individual parts to make sense.
Everything he writes appears backwards because he's facing us as he writes. Hence, someone standing in the room would see everything in reverse.
This isn't a problem because he uses flip teaching, where students view a video of the lecture at home. This only becomes clear if you read the details. The camera he uses to record his lecture does so through a mirror, so the image is reversed by the mirror, not by software.
Also, overlays need not be reversed, because they aren't projected anywhere. They're composited in to the video stream by a switcher.
All of this becomes clear if you read the creator's write up on how to build one. I'd highly recommend it:
"Flip teaching" means that the lectures are recorded and made available online beforehand so that time in-class can be used for more interactive activities.
It doesn't have anything to do with his orientation to the viewer, and in fact does not even solve the issue of orientation because his setup even allows for live streaming of lectures.
Right, but in this case, the "flipped" part doesn't refer to the mirror. He isn't teaching his students this material live. He is recording lectures for them to watch before "class" starts. Then, instead of lecturing for an hour, he is there to answer questions, help with homework, etc...
The reason why the fact that he is writing in reverse isn't a problem is because his students never see him writing in person - it's all done via video.
But flip teaching is nothing to do with writing backwards, or at least not according to the linked Wikipedia article. So he is actually writing backwards?
Edit: Ah I see, the whole scene is mirrored, including him. I guess that could work, although then diagrams really have to be drawn backwards (assuming western L->R convention), and any computer generated text will have to be projected backwards on the whiteboard.