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 ...

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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 ...

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 ...

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 ...

The history of math is murky, predating any written records. When did humans first grasp the basic concept of a number? What about size and magnitude, or form and shape? In my math history courses and ...

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 ...