This is the second in a two-part series. Part one can be found here. The debate over what early math should look like and what should be included in the Common Core State Standards for math is one of ...

A 2-year-old boy looks through a tube while playing at The Children’s Center at Caltech in Pasadena on April 8. Credit: Lillian Mongeau, EdSource Today PASADENA — While many preschools struggle to ...