Sandy Silverman has provided PK-3 professional development nationally and internationally, with a focus on early mathematics. As the Early Childhood Education Professional Development Coordinator for the San Diego County Office of Education, Sandy coordinated the preschool professional development for two national preschool grants, various state grants, and the First 5-funded Preschool for All program and Quality Preschool Initiative. She was the San Diego coordinator for the CA Preschool Instructional Network (CPIN) and co-facilitated the three-county training on the CA Preschool Learning Frameworks. Additionally, she was the San Diego County Coordinator for PK-6 mathematics.