Read about how the authors used many technological tools and platforms to engage a team of educators across the country in this collaborative project.

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Contributor Notes

Chepina Rumsey,, is an assistant professor at the University of Northern Iowa, where she teaches graduate and undergraduate mathematics education courses for elementary school majors. She is interested in studying how elementary school students reason and talk about mathematical concepts.

Jody Guarino,, is a mathematics coordinator at Orange County Department of Education, where she supports teacher and student learning of mathematics. Jennie Beltramini is a K–grade 8 mathematics instructional coach in Anacortes, Washington. She is currently on leave completing a one-year internship with the Washington Education Association, where she is developing and supporting teacher-led professional development throughout the State of Washington.

Shelbi Cole,, is a senior mathematics specialist at Student Achievement Partners, where she works with educators from across the country on the implementation of college-and-career–ready mathematics standards.

Alicia Farmer,, is an elementary math instructional coach in Anacortes, Washington. She is interested in using formative assessment to guide instructional choices and improve student learning in mathematics.

Kristin Gray,, is a K–grade 5 math specialist and teaching channel laureate at Shields Elementary School in the Cape Henlopen School District in Lewes, Delaware. She is interested in continually developing teacher curiosity in student thinking around mathematical ideas.

Morgan Saxby is a fifth-grade teacher in Chesterfield County Public Schools, Virginia, and a lesson plan architect with Illustrative Mathematics.

(Corresponding author is Rumsey author is Guarino author is Cole author is Farmer author is Gray
Teaching Children Mathematics


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