Math is the sum of its parts, and it adds on itself. What does that mean? It means that multiplication is just repeated addition. And that mastering the times tables will help students simplify ...

Segue Institute for Learning teacher Cassandra Santiago introduces a lesson on word problems to her first graders one spring afternoon. Credit: Phillip Keith for The Hechinger Report The Hechinger ...

Her students can, for the most part, understand the concepts she’s trying to teach. They can memorize and use the Pythagorean ...

Among high school students and adults, girls and women are much more likely to use traditional, step-by-step algorithms to solve basic math problems – such as lining up numbers to add, starting with ...