Remember the graph paper you used at school, the kind that’s covered with tiny squares? It’s the perfect illustration of what mathematicians call a “periodic tiling of space”, with shapes covering an ...

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 ...

This is the first in a two-part series. 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 the most contentious in ...

The world around us is full of repeating patterns. From the frequency of music notes to the appearance of a snowflake, they come in many shapes and sizes. But today we're sticking with squares and ...

Frank A. Farris does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations beyond ...