By combining the language of groups with that of geometry and linear algebra, Marius Sophus Lie created one of math’s most ...

In math, Algebra 1 is a make-or-break course. The class is the gateway to high school math, and struggling to complete it can close off those higher-level pathways—and even jeopardize students’ ...

This story about eighth grade algebra was produced by The Hechinger Report, a nonprofit, independent news organization ...