Electronic pocket calculators until recently were expensive novelties, used chiefly by mathematicians, statisticians and scientists. But production has increased, prices are plummeting, and the rush is on. Simple calculators now cost less than $20, and some 12 million of the electronic devices were sold in 1974. Housewives are now using them to balance family checkbooks, and calculators have even begun to invade the classroom. In fact, the growing popularity of the calculators among students and teachers—even in the primary grades—adds up to one of the hottest fads in education.
So far, most of...
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