The EdTech Startup Showcase: Trading the Classroom for a Startup

In this episode of the EdTech Startup Showcase , host Jeff Bradbury interviews Mike Cronley, co-founder and CEO of Class Composer and former third-grade teacher. Mike shares his journey from the classroom to entrepreneurship, sparked by a casual conversation with his school's music teacher about students being incorrectly placed together. This "aha moment" led him to develop Class Composer, a software solution that helps elementary schools create balanced, equitable classroom rosters. Over seven years, Mike transitioned from teaching while developing his idea as a side project to fully committing to his startup. The conversation explores the challenges of the traditional paper-based class placement process, the importance of listening to customers, and advice for educators considering entrepreneurship. Learn more about today's sponsors, Renaissance, Playworks and IXL: Learn more about Renaissance: As a global leader in education technology operating in more than 110 countries, Renaissance is committed to providing educators with insights and resources to accelerate growth and help all students build a strong foundation for success. We believe that technology can unlock a more effective learning experience, ensure that students get the personalized teaching they need to thrive, and help educators and administrators to truly, fully, See Every Student. Learn more at renaissance.com . We’re proud to be sponsored by Playworks , a 501(c)3 nonprofit organization with evidence-based practices that help schools improve the health and well-being of children by increasing opportunities for physical activity and safe, meaningful play. If you’re a school or district leader struggling with the challenge of chronic absenteeism, as so many are across the U.S., you may not realize that structured recess is a research-backed approach to keep kids in school. In fact, a UC Berkeley study of Title I schools found that those partnering with Playworks had significantly lower chronic absenteeism rates. Further, Mathematica research demonstrated that Playworks schools spent 27% less time transitioning from recess back to learning, saving teachers valuable instructional time. These results are possible for your students, too. Learn how Playworks can help you improve student-educator relationships, belonging, and attendance by signing up for a quick no-obligation conversation . We’re also thrilled to be sponsored by IXL. IXL’s comprehensive teaching and learning platform for math, language arts, science, and social studies is accelerating achievement in 95 of the top 100 U.S. school districts. Loved by teachers and backed by independent research from Johns Hopkins University, IXL can help you do the following and more: Simplify and streamline technology Save teachers’ time Reliably meet Tier 1 standards Improve student performance on state assessments 🚀 Ready to see why leading districts trust IXL for their educational needs? Visit IXL.com/BE today to learn more about how IXL can elevate your school or district.

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The EdTech Startup Showcase: Trading the Classroom for a Startup is an episode from #PrincipalPLN by #PrincipalPLN.

This episode is 33:30 long.

This episode was published on Mar 2, 2026.

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