The common-core math standards require that students learn the standard algorithm for multi-digit adding and subtracting—you know, the process in which you line the numbers up vertically to add or ...

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“The math practices (in Common Core) are asking kids to explain their mathematical thinking, to represent their ideas and to make sense of other people’s ideas,” Franke said. She hopes these ...

Third grade math can become a highlight of the school day when routines are intentional and engaging. Warm-ups, scaffolded exercises, and interactive activities reinforce skills across operations, ...