December 6, 2004
Algebra: A form of advanced arithmetic in which letters of the alphabet represent unknown numbers. Children use simple algebra when they solve a problem such as 4 + ? =7 (a problem they would phrase as “4 + x = 7″ when they get older and begin to study algebra).
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December 6, 2004
Variations for All Grades Learning to use the special functions of calculators can expand children’s knowledge of many arithmetic operations, help them to recognize number patterns and increase their ability to reason mathematically.
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