Taken very literally, not all students are created equal -- especially in their math learning skills, say researchers who have found that not fully understanding the "equal sign" in a math problem ...

In this study we analyze students' understanding of two-variable function; in particular we consider their understanding of domain, possible arbitrary nature of function assignment, uniqueness of ...

Cause and effect. We understand this concept from an early age. Tug on a pull toy's string, and the toy follows. Naturally, things get much more complicated as a system grows, as the number of ...