In 2014, WestEd conducted a study of family engagement and early mathematics learning as part of the Ready To Learn (RTL) Initiative with the Corporation for Public Broadcasting (CPB) and the Public Broadcasting Service (PBS). The study was designed to test the effectiveness of a school-based family engagement model in increasing preschoolers' knowledge and skills in mathematics, and in increasing parents' awareness of and ability to support their children's mathematics learning in the home environment. Additionally, the study focused on the feasibility of having teachers from participating schools facilitate parent meetings related to the intervention. The study also examined the relationship of socioeconomic status to learning outcomes and explored how key aspects of the model affect family engagement and learning. (author abstract)