Learning is a highly social activity situated within cultural systems, yet most contemporary approaches to incorporating AI in education, emphasize personalizing and optimizing learning to individual students. In this talk, Dr. Sidney D'Mello will highlight an alternate vision for how AI can support 21st century learning, moving from a facilitator of personalized one-on-one learning, to a social, collaborative partner helping students and teachers work and learn more effectively, engagingly, and equitably. Drawing from the NSF National AI Institute for Student AI Teaming, Dr. D'Mello will discuss responsible innovation and polycultural approaches for developing ethical AI technologies including: (1) foundational AI to understand and facilitate small group collaborations in real-world classrooms; (2) new paradigms for orchestrating classrooms for student-AI teaming; and (3) broadening participation through co-design of AI-enabled curricula for hands-on student-centered investigations. Pizza lunch will be served.