Abstract
During the 1973-74 school year. two sixth-grade classes in New York conducted classroom tri als of hand-held calculators. Each child in these classes had a Bowmar “Brain” hand-held calculator for his usc during mathematics lessons each day. The project was organized by the Bureau of Mathematics Education, New York State Education Department. The calculators were provided free of charge by Bowmar/ALl, Inc., and supervision was provided by the principals of the project schools.
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