This document discusses several effective practices for multi-grade teaching from around the world. It describes programs like Escuela Nueva from Colombia that uses flexible promotion, self-instructional materials, and student participation. The School in a Box program provides learning activities arranged in five styles. The document also discusses the IMPACT program from the Philippines that reduces costs by increasing student-teacher ratios and utilizing community resources. Finally, it mentions projects in Nepal and Sri Lanka that adapted curricula for multi-grade settings.