Mathematics is often thought of as a subject that a student either understands or doesn't, with little in between. In reality, mathematics encompasses a wide variety of skills and concepts. Although ...

Few elementary education programs give future teachers enough exposure to foundational math concepts, like number sense and algebraic reasoning, before they reach the classroom. That’s the upshot of a ...

Zermelo-Fraenkel set theory is so widely accepted that modern mathematicians hardly think about it. But believing in its core ...