The document discusses key research on effective math pedagogy strategies. It summarizes Jerome Bruner's research showing that students build understanding by moving from concrete to pictorial to abstract representations. Richard Skemp's research found relational understanding through concepts like quantity and correspondence leads to better long-term learning than procedural understanding. Zoltan Dienes' research showed exposing students to concepts through multiple materials enhances conceptual understanding. The document then provides examples of math strategies and manipulatives teachers can use to develop relational understanding, such as using place value blocks, number bonds, and the distributive and branching methods.