The Working Group on Social Emotional Learning (SEL) and Learning Differences was launched in 2021 as an initiative of the Global Cities Education Network (GCEN). Fourteen school districts each worked to implement a unique action plan designed to strengthen SEL supports in their district, including for students with learning differences. Districts drew on expertise and resources shared in the working group and adapted the strategies to meet their needs. The learning centered on deep dives into two international school systems: a virtual site visit to Surrey Schools (British Columbia, Canada) and an in-person convening in Melbourne (Victoria, Australia). This report features four case studies and shares lessons learned and strategies implemented by the districts.