A math formula that governs our life and tells us when to die. Even more interesting: the same system scales to other things too, like societies and economies.

Research shows smart study beats long study for math formulas. Retrieval practice and spaced repetition are key. Quizzing ...

2. Work on students’ conceptual understanding of mathematical relationships In chemistry, students might memorize a formula ...

Throughout our lives we have to make difficult, life-changing decisions, such as which job to take, which job candidate to hire, and who's worthy of y ...