QAMA: The only calculator a student should ever use


Long, long ago, before I discovered the joys of public school administration, before I fled from said administrative post for the easy life of private industry, before I left private industry behind to focus on writing and educational policy, I was a math teacher. And in my math classes, we rarely used calculators, says Christopher Dawson for ZDNet. Calculators are designed to eliminate the need for repetitive, tedious arithmetic, leaving time to actually think about the math. When used correctly in the classroom, modern graphing calculators can do wonders for visualization, simulation, and encouraging that critical thought that we’re all after. Calculators were supposed to eliminate the tedium and simple mistakes that plague many calculations but instead have become the go-to device for any math problem. Worse, students frequently lack the mathematical savvy to know when the answer output by the calculator doesn’t make sense. Estimation, it would seem, is a lost art. Enter QAMA…created by Ilan Samson, a retired physicist and serial inventor, to address exactly the problems I described above, the QAMA calculator forces students to provide a reasonable estimate for their answer before it will output the exact answer…

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