Student work posted in an elementary school before the pandemic shows the “partial product” method of solving a multiplication problem, one of many methods students have learned with Common Core.

A controversial new movement promoting the "science of math" has come into the math establishment's crosshairs.

In DeKalb County, Ala., elementary school math classes have gotten noisy. In a good way. Instead of worksheets and textbooks, children practice adding and subtracting with tiny toy bears. They ...