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How overhead projectors took over your classroom

Source: The Verge · Oct 18, 2026 12:55 UTC

A computer lab with rows of desktop computers — File photo Carol M. Highsmith / Library of Congress · Public domain · Source

The Quick Take

It used to be so easy to get away with things in school. The teacher, after all, was always turned around writing at the chalkboard! But then came a bit of technology, previously mostly used for military purposes, called the overhead projector. It would change far more than just the disciplinary record of students everywhere. […]

Read the full story at The Verge

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