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A key part—though surely not the only part—of early-grades math is ensuring students get the basic arithmetic functions down and, beyond that, making sure they’re able to swiftly and automatically ...

Lynda Colgan receives funding from The Ministry of Education for the Province of Ontario and The Mathematics Knowledge Network (KNAER). Queen's University, Ontario provides funding as a founding ...

The authors do not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and have disclosed no relevant affiliations beyond their ...