In 2017-2018, the Susan Crown Exchange (SCE) partnered with Wyman, YMCA of the USA, and the Weikart Center to support two unique approaches to testing and scaling SEL implementation: curriculum development and a research-to-practice learning lab. While the goal of both endeavors was unique, both organizations aimed to support the growth of SEL practices within their networks. Hear how both partners structured their SEL Implementation pilot work, highlighting lessons learned and recommendations for the field.