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Montgomery County Public Schools (MCPS)
Reply to "Which calculator to buy?"
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[quote=Anonymous][quote=Anonymous]I think there are phone aps now too.[/quote] Desmos is a very popular app/browser calculator, but it can’t always be used in the classroom or on test exams. TI-84 is a very commonly used calculator, and a lot of schools have a lot of them around for borrowing. It’s the low cost, good for everything calculator. The higher end versions have what is called Computer Algebra System (CAS) that can do symbolic manipulation like factoring quadratics, giving exact solutions with radicals, symbolic solutions to integrals and derivatives (ie a function of x). Some tests like ACT don’t allow CAS calculators, but they are fine for SAT and AP exams. CAS is not a substitute for knowing the material but it can be a huge help for the calculator sections of the AP exams, saving a lot of time, and avoiding transcription mistakes etc. There’s a learning curve and the students need to get familiar with the features, but it’s totally worth it. [/quote]
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