I bought about a dozen scientific calculators last year to reach a class set of 36 calculators. I didn't bother doing a check-out system, and as a result, a few were sadly lost and vandalized. I think I have only about 28 remaining. It is frustrating, the calculators aren't cheap. To do the trigonometry section, I wanted the students to use calculators and not charts. I have recently been bidding on used machines on eBay, trying to buy at a lower price. Hopefully, I can keep my class set throughout this year.
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