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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
Noticing Same and Different: The Concept of Comparison with Infants and Toddlers
Focus on the Child
July 2022
Benchmarks of 5 and 10 with Child 39
Focus on the Child
March 2022
Solving a Problem with Both Parts Unknown with Child 39
Focus on the Child
March 2022
Solving a Part-Part-Whole Problem with Child 39
Focus on the Child
March 2022
The CAIR Principle to Tune into Math for Babies and Toddlers
Focus on the Child
March 2022
Math Activities for Infants and Toddlers are Everyday Explorations
Focus on the Child
September 2021
Why Cardinality is the Goal of Counting
Focus on the Child
May 2021
Learning the Counting Words with Child 16
Focus on the Child
April 2020
Egg Carton Story with Child 15
Focus on the Child
December 2019
Teddy Bear Picnic Math Stories with Child 15
Focus on the Child
December 2019
Capture It with Child 15
Focus on the Child
December 2019
Why One-to-One Correspondence Matters
Focus on the Child
October 2019
Many Ways to See How Many
Focus on the Child
January 2019
Transforming Three-Dimensional Shapes with Child 36
Focus on the Child
December 2018
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
Volume of a Cube with Child 14
Focus on the Child
December 2018
Subtraction as the Inverse of Addition with Child 5
Focus on the Child
November 2018
Repeating Patterns with Child 14
Focus on the Child
October 2016
Making a Block Sandwich
Focus on the Child
July 2016
Second Grade Problem Solving with Child 5
Focus on the Child
March 2016
Daily Attendance Chart with Child 27
Focus on the Child
September 2015
Using Number Paths with Child 7
Focus on the Child
August 2015
Seriating by Length and Capacity
Focus on the Child
July 2015
