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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 ...

Fourth grade math is a big leap, but it doesn’t have to feel overwhelming. With smart lesson planning, diagnostic tools, and gamified activities, teachers can make learning both effective and ...

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 ...

Subscribe! Want more math video lessons? Visit my website to view all of my math videos organized by course, chapter, and section. I make most of my math lessons in a live classroom and do no editing.

Lindsey Henderson hopes to change the conversation about math in her state. As student math performance declined in Utah and states across the nation over the pandemic, most learning-recovery efforts ...