US Math Recovery Council for their relentless curiosity about children and how they learn.
All of the members of the Colorado Metropolitan Math Intervention Team (CoMMIT) over the years for their commitment to improving assessment, instruction, and MTSS/RtI systems for all students, but especially those who struggle.
The fantastic educators of Boulder Valley School District for their sharp, critical eyes and thoughtful practice.
United States Freudenthal Institute for the many insights and inspiration their work has provided over the years.
To the many educators of the National Council of Teachers of Mathematics who have reached out with ideas, comments, and appreciation.
Math Learning Center for their support and collaboration, and for the awesome apps that are used in the slides that were created for virtual administration of the Screeners.
To Anna Grace and Mary Ann Davis whose sharp eyes, design skills, insights, efforts and support have made this possible.
And to the many educators who have reached out with comments, suggestions, questions, words of support, and who are dedicated to improving equity in math instruction for students everywhere.