Elementary school mathematics revolves around a set of core concepts, which become more sophisticated and elaborate as learners gain skill and build understanding. One of these principles, known as number sense, is on full display in second grade this week.  Through a series of activities focused on word problems, the students have been expanding their [...]

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“Find a rock with a plaque on it. Count the dots. Multiply by 31. Head out at that number of degrees.” Upon reading these instructions, a group of 5th graders eagerly gathered around a stone at the edge of the woods. They counted, calculated, positioned their compasses, and proceeded off in the direction indicated by [...]

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