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A key part—though surely not the only part—of early-grades math is ensuring students get the basic arithmetic functions down and, beyond that, making sure they’re able to swiftly and automatically ...

Quick: Five seconds to answer. Math Bee winners Melany Catota and Saviour Moccormack. As she rode the morning bus, Melany Abigail Catota Lopez, a third-grader at Strong School, pulled a stack of pink ...