The S3D Talk Tools support each step of the approach by helping you observe, reflect on, and strengthen student-to-student discourse. The page includes both paper-and-pencil and app-based versions of the four tools—Group Dynamics, Discourse Quality, Teacher Support, and Talk Moves—so you can choose the format that fits your teaching needs.

Explore how the S3D Approach comes to life through a collection of videos designed to support your work with small-group, student-to-student math discourse. The video library includes four series: introducing the approach, using the paper-and-pencil tools, navigating the app, and seeing the tools in action with the app. Whether you're just getting started or looking to deepen your practice, these videos offer practical guidance and real classroom examples to support your journey.

Coming Soon

Looking to learn more about the S3D Approach? This collection of readings includes a range of resources—from a full-length book to brief articles, social media posts, and research—all designed to meet different interests, time, and experience levels. Explore these materials to deepen your understanding and support your work with small-group, student-to-student discourse.