Tatiana Popa discusses teaching students about the United Nations Sustainable Development Goals (SDGs) through international collaborative projects. She recommends resources from World's Largest Lesson that are adapted for both in-person and distance learning across different age groups. As an example, she describes a project where her students in Moldova researched climate change, interviewed experts, had video conferences, planted trees, and participated in Climate Action Day through the #GoalsProject and eTwinning platform. The projects allow students to learn about specific SDGs like climate action through real-world collaboration.