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My teachers during grade school used this kind of projectors to project their notes. They would write on like a transparent piece of plastic paper, and they would project that. -
We would sometimes watch and learn on an old TV with a DVD player. -
When I was in grade school, we would go to this computer lab in our school to use these old computers. In there, we get to learn the basics about a computer. -
During this time, each of our classrooms have a wall mounted monitor in it. This made it easier for teachers to project their slides. -
During this time, my school elected to replace physical textbooks and completely have books online. Our school gave us these tablets to use.