Good to know, in case I don't have a projector in my classroom.
For common people, it is easy and cheap - Projector Rental.
6. Top 7 Cheap Projectors Under 200$ in 2017
The best cheap projector deals in February 2017
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For under $70, Griffin builds a classy 93-inch fixed projection screen! Also, where to buy cheap screen material—blackout cloth—and how to add a DIY tripod m...
7. Top 7 Cheap Projectors Under 200$ in 2017
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