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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
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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
What is a Number Path and How Does It Build Number Relationships?
Ideas at Work
February 2023
Counting a Collection of 101 – How Did You Count Them?
Focus on the Lesson
November 2021
Beloved Eric Carle Books Illustrate the Math in Story Time
Book Ideas
August 2021
Why Cardinality is the Goal of Counting
Focus on the Child
May 2021
DIY Rekenrek Ideas for Home and School
Ideas at Work
April 2021
New Use of Quantity Cards for Remote Preschool Math Games
Focus on Play
December 2020
How to Adapt Math Card Games to Children’s Skill Level
Focus on Play
June 2020
Math at Your Fingertips: Songs and Fingerplays for Preschoolers
Ideas at Work
May 2020
Get on the Right Path: Make Your Own Number Sense Activities
Ideas at Work
May 2020
We’re Going on a Math Walk, Going to Find Some Math Talk
Ideas at Work
April 2020
Counting and Cardinality: Not as Easy as 1-2-3!
Adult Learning
April 2020
Learning the Counting Words with Child 16
Focus on the Child
April 2020
At-Home Activity Cards: Counting
Book Ideas
March 2020
The Cover 10 Game
Focus on the Lesson
March 2020
Two Ways That Language Scaffolds Understanding of Cardinality
Hear from the Experts
February 2020
8 Counting Books For School and Home That Tackle Big Ideas
Book Ideas
January 2020
Why One-to-One Correspondence Matters
Focus on the Child
October 2019
Cardinality is Critical Preschool Concept with Barbara Sarnecka
Hear from the Experts
October 2019
Counting Collections Builds Strong Counting Knowledge
Ideas at Work
October 2019
One-to-One Correspondence with Child 15
Focus on the Child
December 2018
Counting a Large Collection with Child 14
Focus on the Child
December 2018
Counting on Good Food for the Holidays
Ideas at Work
November 2018
3 "Mathical" Books for More Advanced Counting
Book Ideas
September 2018
3 "Mathical" Counting Books with Winning Appeal
Book Ideas
March 2018
