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Student work posted in an elementary school before the pandemic shows the “partial product” method of solving a multiplication problem, one of many methods students have learned with Common Core.

athematics is, at its core, an art. Like painters, musicians or writers, mathematicians create and explore new worlds. They ...

Richard Rusczyk, founder of Art of Problem Solving, has a vision for bringing “joyous, beautiful math” — and problem-solving — to classrooms everywhere. When Richard Rusczyk became interested in math ...

Corrected: In a previous version of this story, the group that is developing a linear algebra and geometry course of study was misidentified. The group is the Education Development Center. When ...