Regarding Wendy Kopp’s “Copying Singapore’s Math Homework” (op-ed, Dec. 8): When my children were in elementary school, a “connected math” curriculum was introduced. This warm and fuzzy program was so ...
Mathematicians are “reinventing the wheel” by giving it a new shape. Their newly imagined wheel looks like a many-dimensional guitar pick, and it could theoretically roll in ways beyond our ...
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