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The 1990s objects kids have never heard of - how many do YOU ... - MSNThe overhead projector (pictured), which used simple light reflection to project text and images, was often used in schools and businesses before digital projection ...
Teacher shares hack on how to share written notes on video calls with a DIY overhead projector PHOTO: Facebook/HugotMaestra PUBLISHED ON September 09, 2020 1:25 AM By Ilyas Sholihyn ...
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