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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
Looking Back to Look Forward; a Conversation with Mary Hynes-Berry
Hear from the Experts
August 2024
4 Key Findings for Early Childhood Coaching Strategies with Teachers
Adult Learning
January 2021
Family-Centered Approach to Picture Books with David Purpura
Hear from the Experts
August 2020
Counting and Cardinality: Not as Easy as 1-2-3!
Adult Learning
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
Two Ways That Language Scaffolds Understanding of Cardinality
Hear from the Experts
February 2020
Co-Design Process for Math in the Neighborhood with Omo Moses
Hear from the Experts
January 2020
Cardinality is Critical Preschool Concept with Barbara Sarnecka
Hear from the Experts
October 2019
Video Analysis of Children’s Mathematical Thinking
Adult Learning
May 2019
Video Analysis of Preschool Number Sense Activity
Adult Learning
May 2019
Ordering Similar Objects by Measurable Attributes
Adult Learning
February 2019
Exploring Unit Block Relationships
Adult Learning
February 2019
Different Uses of Numbers with Anno’s Counting Book
Adult Learning
February 2019
Measuring Math Understanding of ELLs with Barbara Sarnecka and David Purpura
Hear from the Experts
October 2018
Creating Opportunities for Early Math with Rodrigo Gutiérrez
Hear from the Experts
October 2018
What is Early Math Really?
Adult Learning
October 2018
Instructional Tools to Integrate Language and Math Concepts with Halla Jmourko
Hear from the Experts
June 2018
How Can Playful Math Help in Classrooms and Centers with Jennifer McCray
Focus on Play
March 2018
Tangram Puzzles: Make One For Your Kids
Hear from the Experts
March 2017
Language, Culture, and Math Through Storytelling with Sylvia Celedón-Pattichis
Hear from the Experts
October 2016
“Ooh-Ooh Culture”: Answer-Getting Versus Collaborative Learning
Hear from the Experts
May 2016
Erikson Visits the White House for Symposium on Early Learning STEM
Hear from the Experts
April 2016
Spatial Reasoning with Jan de Lange
Hear from the Experts
March 2016
