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 ...

The SOF International Mathematics Olympiad (IMO) is an annual math competition for students in grades 1 through 12. It's run by SOF to test students' math and logic skills. This Olympiad's syllabus is ...