Humans, for the most part, count in chunks of 10 — that’s the foundation of the decimal system. Despite its near-universal adoption, however, it’s a completely arbitrary numbering system that emerged ...

Most of us have little trouble working out how many milliliters are in 2.4 liters of water (it's 2,400). But the same can't be said when we're asked how many minutes are in 2.4 hours (it's 144).

We are writing in response to an article and subsequent blog post describing what many experts are suggesting is one of the “biggest shifts” associated with the Common Core State Standards for ...