The Rise of Overhead Projectors in Classrooms

Back in the day, slipping under the radar in school was a breeze. With the teacher often focused on the chalkboard, students had plenty of opportunities to misbehave. Then came a game-changing piece of tech, originally designed for military use: the overhead projector. This device would revolutionize not just classroom discipline but the entire learning experience.

In this episode of Version History, we dive into the fascinating journey of the overhead projector. David Pierce is joined by Jake Kastrenakes and Stanford professor Antero Garcia to explore its development, its introduction into classrooms, and the significant impact it had on how students learn. They also discuss the reasons behind the decline of overhead projectors and whether the modern alternatives—like PowerPoint, computer screens, and smart boards—truly offer improvements over the classic OHP.

This marks the final episode of the fifth season of Version History, which has focused on iconic educational technology. We appreciate all the support, feedback, and engagement from our audience! Throughout the season, we’ve also examined other notable tech like Oregon Trail, the original Chromebook, the One Laptop Per Child initiative, the LeapFrog LeapPad, and those ever-present Texas Instruments calculators. If you missed any episodes, you can catch up here:
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If you’re curious to learn more about the overhead projector, here are some resources to kickstart your exploration:
* A brief history of the Magic Lantern
* 3M’s century of innovation
* A delightful OHP ad
* From NPR: Sputnik Left Legacy for U.S. Science Education