This is the second in a two-part series. Part one can be found here. The debate over what early math should look like and what should be included in the Common Core State Standards for math is one of ...

Re "The New Math: Three Concepts in Two Years; Common Core drives new look at math instruction," July 22 article: In 2008, the National Mathematics Advisory Panel recommended that schools prepare more ...

Have you ever admired how the slats of a hardwood floor fit together so cleanly, or how the hexagons underneath your bathroom rug perfectly meet up? These are examples of geometric tilings, ...