Addition & subtraction strategies to solve two-digit equations using an open number line. In this lesson, students go over using addition and subtraction strategies to solve two-digit equations using ...

We know a lot about how babies learn to talk, and youngsters learn to read. Now scientists are unraveling the earliest building blocks of math — and what children know about numbers as they begin ...

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Greg Duncan before delivering the keynote address at the Silicon Valley Education Foundation’s forum on early math. Credit: Lillian Mongeau, EdSource Today A study showing that early math skills are ...