– Two decades ago, a very small percentage of four-year-old children were taught math at home or in preschool. In 1998, as few as 4% of kids entering kindergarten in the US had some knowledge about addition and subtraction. This situation has radically changed: Nowadays, math is part of practically any pre-K curriculum.

– Pre-K standards in New York State, for example, have been aligned to the Common Core Standards, that requires four-year-old kids to “demonstrate an understanding of addition and subtraction by using objects, fingers, and responding to practical situations”. They are asked questions like “if you have three apples, and I give you two more apples, how many apples do you have in total?”

– In only 15 years, we have passed from preschoolers unable to process basic math to the goal of having all of them able to do it. A big revolution in education!

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