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How to safely reopen offices, schools and other public spaces while keeping people six feet apart comes down to a question mathematicians have been studying for centuries. Sphere packing might seem ...

Interactive learning tools are transforming 7th grade math from a chore into an adventure. With adaptive lessons, gamified challenges, and instant feedback, students can strengthen skills while ...

In the third century BCE, Apollonius of Perga asked how many circles one could draw that would touch three given circles at exactly one point each. It would take 1,800 years to prove the answer: eight ...