There are some basic properties of numbers any 3rd grader can tell you: Each number is represented by a single symbol, and followed by a single successor. Multiplication makes a number bigger; ...

How students are introduced to fractions in early grades affects how they approach more complicated mathematics—like algebra—in higher grades. It’s crucial that students learn how fractions behave ...

Many students cruise along just fine in math until fourth grade or so. Then, they hit a wall—fractions. The wall is about to get taller. With mastery of the topic seen as a crucial stepping stone to ...