We present here as the overarching “promising practice” a research-practice partnership dedicated to iterative cycles of action and research. In 2016-2017, the IRC delivered non-formal retention-focused tutoring support, also known as remedial programming, to 6,400 children enrolled in public schools in Lebanon and Niger using its Learning in a Healing Classroom (LIHC) program. LIHC is an evidence-based approach to providing reading and math courses in safe and supportive learning environments. Sites were additionally randomized to embed low-cost, targeted social-emotional learning (SEL) interventions into the curriculum. TIES/ NYU then conducted a site-randomized trial to provide the first rigorous evidence of whether and how non-formal, SEL-based retention support education programs can bolster refugee children’s ability to succeed in formal education systems, as well as some of the first evidence globally on how targeted SEL practices can be embedded in curriculum to support children’s holistic learning and development. We share the lessons learned from both the interventions and from the partnership, focusing on the work in Lebanon.