It is important for teachers to incorporate mathematics into the daily curriculum to help ensure young children gain the foundational skills for later success in math. In this collection of articles from NAEYC's journal, Young Children, teachers of children from infancy through age 8 will learn how to help children develop, construct, test, and reflect on their mathematical understandings. Articles offer ways to provide in-depth, engaging learning experiences focusing on key math concept areas: number and operations, geometry, measurement, and data analysis.