I’ve never forgotten my college professor for integral calculus, Mr. Whatever-his-name-was. I can still see him, standing at the front of the lecture hall, shirtsleeves rolled up, wielding a piece of ...

Easily calculating limits, directly from an intuitively clear definition, using the same basic procedure for every type of limit, with a high level of student success. The impossible dream? Not if we ...

Correction & clarification: This article was updated to remove incorrect details about math courses and departments at the University of California, Santa Cruz. CAMBRIDGE, Mass. – Math professor ...