Two students in Danielle Adler’s kindergarten class at Marcus Hook Elementary School in Marcus Hook, Pa., prepare for an addition problem. Credit: Holly Korbey for The Hechinger Report The Hechinger ...

Real and imaginary: The time-dependent Schrödinger equation formulated using complex numbers. (Courtesy: iStock/piranka) Complex numbers are essential to achieve the most accurate quantum-mechanical ...

The new question-of-the-week is: What has been the best math lesson you have taught and why do you think it was so good? We’ve all taught some great lessons and we’ve also all taught some pretty bad ...

Elections are all about numbers, sometimes hinging on miniscule percentage-point differences in turnouts. Math teacher Alison Strole’s middle school students know this better than your average ...

Students in Melissa Williams' kindergarten class at the Westminster School in Atlanta, Georgia, practice connecting quantities to written numbers — a key part of number sense. Credit: Holly Korbey for ...