There’s competing data and diverse perspectives about the extent to which class size matters. In this episode, we look at what we’ve learned about the ideal class size.

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Harvey Alvy has served as a teacher, principal, and university professor, and was honored to be a National Distinguished Principal. He is the author of Fighting for Change in Your School: How to Avoid Fads and Focus on Substance, and co-author of Learning From Lincoln: Leadership Practices for School Success.