As a mathematics education researcher, I study how math instruction impacts students' learning, from following standard math procedures to understanding mathematical concepts. Focusing on the latter, ...

Learn how to compose two linear functions. To compose two functions means to express one of the functions as a function of the other function. This is done by replacing the input variable of one of ...

For centuries, the concept of infinity has captivated mathematicians and philosophers alike, stretching far beyond the simple idea of endless counting. Recent groundbreaking discoveries, however, have ...

This post is by Jeff Feitelberg, 4th Grade Teacher, High Tech Elementary Explorer. When I was at school, math was about speed and getting the right answer. It was something you did alone and you were ...

Group 2 had some trouble distinguishing between necessary teacher knowledge of mathematics (Question 1) and mathematical instincts, sensibilities, dispositions that seem crucial to teaching ...