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 ...

Two effective manipulatives that can be used to support fractions and base 10 learning are base 10 blocks and Cuisenaire rods ...