National Council of Teachers of Mathematics Books by the Author Previous slide in carousel Catalyzing Change in Middle School Mathematics Catalyzing Change in Early Childhood and Elementary Mathematics Catalyzing Change in High School Mathematics The Common Core Mathematics Companion Reasoning and Sense Making in the Mathematics Classroom Putting Essential Understanding of Geometry and Measurement Into Practice in Grades Pre-K-2 JRME Monograph 16: Children's Measurement Psychometric Methods in Mathematics Education Putting Essential Understanding of Geometry Into Practice Next slide in carousel