The National Council of Teachers of Mathematics is a public voice of mathematics education, providing vision, leadership, and professional development to support teachers in ensuring mathematics ...

Let A be a subset of integers (or a subset of a finite abelian group); in this communication, we survey some results related to the properties of the set A from the information on cardinality of 2A or ...

Scientific American presents Math Dude by Quick & Dirty Tips. Scientific American and Quick & Dirty Tips are both Macmillan companies. In the last episode, we learned an amazing trick that you can use ...