U.S. students’ math performance dropped significantly during the pandemic and has yet to recover. But students at all levels of K-12 schooling have been struggling with geometry and statistics ...
Most famous equation: Einstein's E = mc2, which means energy is equal to mass times the speed of light squared. Known digits of pi: More than 105 trillion digits Digits of pi NASA uses for equations: ...
Forbes contributors publish independent expert analyses and insights. Linda Darling-Hammond is an expert on education research and policy. This blog was updated on June 24, 2026 to clarify a statistic ...
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