Everyone knows that arithmetic is true: 2 + 2 = 4. But surprisingly, we don’t know why it’s true. By stepping outside the box of our usual way of thinking about numbers, my colleagues and I have ...

From classrooms to kitchen tables, debates about math education are never far away. Should teachers drill multiplication facts or encourage creative strategies to solve problems? The answer, ...

Pascal’s triangle is one of the most famous of all mathematical diagrams, simple to construct and yet rich in mathematical patterns. These can be found by a web search, but their discovery by study of ...

In this tutorial, we demonstrate how to identify if a sequence is arithmetic. Learn how to calculate the difference between consecutive terms and verify whether the sequence follows a constant pattern ...

According to Plato, a core of mathematical knowledge, later known as the quadrivium, was essential for an understanding of the universe. He outlined the curriculum in his Republic. Quadrivium means ...