1960 Overhead Projector

“Overhead projectors were introduced into U.S. military training during World War II, and used at schools like the U.S. Military Academy after the war” (Overhead Projectors, 2012). Images where designed on transparent film so it could be projected on a pulled down white screen. Sometimes the teacher would write the notes on transparent film during the class. The makers that was used was a wet erase.

I chose Overhead Projectors because it was popular during my high school years. The teacher did not have to keep rewriting the information for each class. With the information already written down, all the teach had to do was place it on the overhead projector. This slowly replaced the chalkboard. The relevance of the Overhead Projector was to help the teacher to teach without having to repeat writing on the chalkboard and the use of less paper. I believe this tool is emerging because it is part of the SMART interactive boards.

 

References

 

Akanegbu, A. (2013, February 28). Vision of Learning: A History of Classroom Projectors. [Photograph]. Retrieved May 23, 2016, from www.edtechmagazine.com/k12/article/2013/02/vision-learnin...

 

Overhead Projectors. (2012). Retrieved May 23, 2016, from americanhistory.si.edu/mobilizing-minds/overhead-projectors

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