Michael Peshkin, a professor at Northwestern University, believed that turning his back on his students and lecturing reduced their motivation to the lesson, so he found a way to teach by looking at the students. The transparent board, the professor's own invention, also used a double-sided system and computer. We have published this article here before. A long time has passed since this article and the board named e-glass, which did not attract much attention at that time, was added to the use of teachers with much more technical features with the pandemic.

On the e-glass, which is used to give a lesson by looking at the students by looking at the back of the board, and when you start to write on the blackboard, what is written appears flat on the other side of the board. In the updated board, an integrated camera, and a privacy element that can hide and reveal the back of the glassboard, has been added to the new generation board in settings where you can adjust the light level of the board. Emphasizing teacher and student interaction, this educational technology material has two different versions, one is 35 inches and the other is 50 inches. There is only a price difference between the versions. The small version was offered for 1999 dollars and the small version was offered for sale by HoverCam abroad for 2999 dollars.

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