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 ...

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When you count to 20, you start at 1 (or zero) and count on until you reach 20. Each number is one more than the last. When you count back from 20, you start at 20 and count back until you reach 1 (or ...

Sivanes Phillipson receives funding from the Australian Research Council Linkage Project (LP 140100548), with partner investigators, Victorian Department of Education and Training and Catholic of ...

YouTuber Kevin Lieber (who hosts the popular Vsauce2 series) has brought a classic math magic trick back from its ‘90s heyday. In the video, Lieber walks viewers through a magic trick where they ...

Susan Sonnenschein received a small grant from the Psychology Department at UMBC for some of the research discussed in this article . Rebecca Dowling and Shari Renee Metzger do not work for, consult, ...

In Boston public schools, 3, 4 and 5-year-olds are getting their first introduction to math. Before they walk through the kindergarten door, the “Building Blocks” curriculum is designed to encourage ...