This article was originally published in The Hechinger Report. ASTON, Pa.— In Jodie Murphy’s kindergarten class, math lessons go beyond the basics of counting and recognizing numbers. On a recent ...

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 ...

Many animals have a sense of quantity, but they don't count or do math the way humans do. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. The ...