https://doi.org/10.5951/teacchilmath.22.1.0020 • https://www.jstor.org/stable/10.5951/teacchilmath.22.1.0020 Copy URL Cajori, Florian. 1928, 1929. History of ...

https://doi.org/10.5951/mathteacmiddscho.22.3.0152 • https://www.jstor.org/stable/10.5951/mathteacmiddscho.22.3.0152 Copy URL Common Core State Standards Initiative ...

Everyone agreed on the first step: Solve inside the parentheses, for 2+2=4. But after that, people split down two paths. Some multiplied first, while others divided, leading to different answers—1 and ...

WESTON — The "Survivor Math Challenge" on Sept. 26 was an outdoor event in which teams of students competed with one another to solve order-of-operations math problems before completing a variety of ...

The Number and Operations course for elementary and middle school teachers examines the three main categories in the Number and Operations strand of Principles and Standards of School Mathematics ...

Ever wondered why your Excel formulas sometimes produce unexpected results? It might be due to the order in which Excel performs calculations. This order is defined by the acronym PEMDAS. If you're ...

The confusion (likely intentional) boiled down to a discrepancy between the math rules used in grade school and in high school. By Steven Strogatz Recently I wrote about a math equation that had ...