That Vexing Math Equation? Here’s an Addition The confusion (likely intentional) boiled down to a discrepancy between the math rules used in grade school and in high school. Share full article ...

An official journal of the National Council of Teachers of Mathematics (NCTM), JRME is the premier research journal in mathematics education and is devoted to the interests of teachers and researchers ...

The simplest ideas in mathematics can also be the most perplexing. Take addition. It’s a straightforward operation: One of the first mathematical truths we learn is that 1 plus 1 equals 2. But ...

Researchers from 4 projects with a problem-solving approach to teaching and learning multidigit number concepts and operations describe (a) a common framework of conceptual structures children ...

In addition to these cards, there is a card listing "Basic Addition Facts" (written vertically, with answers) and "Basic Addition Combinations" (written vertically, without answers). Four cards give ...

Addition One of the simplest ideas in mathematics is the addition of two or more numbers to produce a sum or total. Managers are familiar with this concept.