Almost 90 years ago, an overhead projector was used to display images in a classroom for the first time. A few decades later, Texas Instruments invented the handheld calculator. In the 1980s, schools started introducing Apple Macintosh computers to the classroom. The ratio of computers to students in U.S. schools at the time was 1-to-92.Today, technology is widespread among schools. Access to computers has become so ubiquitous that digital...
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