Rheta Rubenstein
Mental mathematics has value beyond middle school. It builds students' confidence, promotes flexible thinking, and supports learning other mathematics. The article shares sample objectives and ideas for teaching and assessing mental mathematics objectives.
Frank Swetz
The history of magic squares.
Al Cuoco, Michelle Manes
How you can frequently use the memory limitations of a graphing calculator to teach important conceptual ideas.
Lucas Allen
An approach to teaching mathematical induction that builds on student knowledge of the recursive form of a function.