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Join Mrs. Gray for a Mystery Math Mistake with D.C. He needs your help with his number bonds. We will be counting pictures with ten and some more to answer the question "how many?" Episode ...

The idea of an animal that can count or do math might sound like something out of a viral news story or TikTok video. But a sense of quantity, sometimes called "numerosity," appears across a ...

Help D.C. with number sentences and ten frames, then learn about groups of up to 20. Join Mrs. Gray for a Mystery Math Mistake with D.C. He needs help figuring out his number sentences to match ten ...

A version of this puzzle originally appeared in the October 1960 issue of Scientific American. What’s the Most Distant Galaxy ...

Keeping the attention of a room of 4th graders is difficult. And keeping them interested while you’re teaching them math is nearly impossible. But there was Mike Byster, mesmerizing–really, they were ...

When you purchase an independently reviewed book through our site, we earn an affiliate commission. By Eugenia Cheng COUNTING How We Use Numbers to Decide What Matters By Deborah Stone The title of ...

When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. A lot of people dislike math, but neuroscientist Brian Butterworth remembers one young man who ...

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: ...