This three-part, ears-on lesson blends sound and visuals to help middle schoolers make sense of linear relationships.

This paper uses a multilevel analysis of mathematical reasoning rooted in Cultural Historical Activity Theory to examine how mathematical discourse and student reasoning about linear functions ...

Top students can benefit greatly by being offered the subject early. But many districts offer few Black and Latino eighth graders a chance to study it. By Troy Closson From suburbs in the Northeast to ...

Never divide by zero. We were all taught this in school, and in most everyday situations, it's good advice. It rarely makes sense to divide anything by zero, and if you try to ask Siri to do it, she ...