This report is a formative review of the teacher-training program, Ruang Berbagi Ilmu (RuBI), which translates to the “Knowledge-Sharing Platform.” The RuBI program, established in 2015, is an initiative of the non-governmental organization Gerakan Indonesia Mengajar (GIM), or the “Indonesia Teaching Movement.” This report shows RuBI’s initial results and identifies the program’s strengths and opportunities for improvement. Using qualitative methods, this evaluation aims to provide GIM with detailed findings, observations, and recommendations about RuBI in order to further enable RuBI to move forward in an informed direction. The research and evaluation of this project was undertaken by a team of six graduate students from Columbia University’s School of International and Public Affairs (SIPA), through SIPA’s Workshop in Development Practice program.