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About the Collaborative
Why Early Math?
We believe every child is a capable mathematician, and every early childhood educator can be confident teaching math.
Whole Teacher Approach
Big Ideas of Early Math
Racial Justice in Early Math
Precursor Concepts
Projects and Partnerships
Our projects range from short-term to multi-year programs, from one school to networks of schools.
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Learning + Professional Development
Learning Labs
Interactive learning sessions for early childhood teachers, trainers, or administrators to better understand early math skills, math content and math teaching strategies.
Books + Resources
Explore our groundbreaking books and resources on foundational math concepts for young children.
Series
Resources aimed at teachers, educators, administrators, caregivers, and more.
Early Math Newsletter Archive
Find and read past newsletters in our archive.
Instructional Coaching
Reflective, cognitive-based teacher coaching in early math to sustain professional development insights in the classroom.
Leadership Academies
For school administrators and leaders interested in enhancing their math knowledge and understanding.
Professional Learning Modules
Online learning modules that equip you with the materials and knowledge you need to explore foundational mathematics with adult learners.
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Early Math Research
Teacher Development
Our research focuses on understanding teacher development in early mathematics.
Publications + Presentations
We publish our research in practitioner and scholarly journals and present at local and national conferences.
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About the Collaborative
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Whole Teacher Approach
Big Ideas of Early Math
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Racial Justice in Early Math
Precursor Concepts
Projects and Partnerships
Learning + Professional Development
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Leadership Academies
Instructional Coaching
Learning Labs
Books + Resources
Professional Learning Modules
Series
Early Math Newsletter Archive
Early Math Research
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Teacher Development
Publications + Presentations
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Mistakes in Early Childhood Math Learning – Obstacles or Opportunities?
Hear from the Experts
February 2026
Playing with Math to Build Autonomy, Focus on Understanding, and Increase Joy
Hear from the Experts
August 2025
The Five Principles of Anji Play
Hear from the Experts
July 2025
The Center for Family Math: Building a Movement
Ideas at Work
April 2025
Go
How to Use Digital Photos to Build a Mathematical Language Routine for Kids
Ideas at Work
June 2022
Why Cardinality is the Goal of Counting
Focus on the Child
May 2021
Games to Play at Home Using Attributes for Math Thinking
Ideas at Work
May 2020
Let’s Wash that Math Right Into Laundry Day
Ideas at Work
April 2020
Number as Attribute: How Many of What?
Adult Learning
April 2020
Sets and Sorting: The Foundational Math of Making Groups
Adult Learning
April 2020
At-Home Activity Cards: Sets and Sorting
Book Ideas
March 2020
Creatures at Home Activity
Focus on Play
March 2020
5 Kids’ Books that Involve Sets and Sorting
Book Ideas
December 2019
All Sorts of Families: Connecting School and Home with Math
Ideas at Work
October 2019
Professional Development Module: Sets
July 2018
Matching and Concepts of Same and Different… with Socks!
Book Ideas
June 2017
4 Books That Inspire Algebraic Thinking in Young Children
Book Ideas
January 2017
Criaturas – En Espanol
Book Ideas
December 2016
Teacher Testimony: Using Creatures Who Live in My Home
Book Ideas
December 2016
Creatures at Home
Book Ideas
December 2016
At NAEYC Conference, Collaborative Talks Math for Babies and Toddlers
About the Collaborative
December 2015
Analyzing Video in a Grade Level Meeting
Focus on Collaboration
December 2015
Talking with Children Sets the Groundwork for Mathematical Learning
Hear from the Experts
September 2015
Sorting Rocks with Child 31
Focus on the Child
June 2015
Sorting Rocks with Child 14
Focus on the Child
June 2015
Sorting Commercial Manipulatives with Child 33
Focus on the Child
June 2015
People Sort
Focus on the Lesson
June 2015
Collaboration with the Ounce Highlights Math Development in Children Ages 0-3
About the Collaborative
May 2015
