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Early Math
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Idea Library

Get more when you join the collaborative. More resources and more ways to connect.

Join the collaborative

Get more when you join. More resources and more ways to connect.

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

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

Looking Back to Look Forward; a Conversation with Mary Hynes-Berry

Hear from the Experts
August 2024

From Sunflowers to Friendship: Four Meaningful Math Books on Measurement

Book Ideas
May 2024

What Do We Mean by Counting Principles and What Do Early Childhood Educators Need to Know?

Ideas at Work
January 2024

Collaborative Math: Creating Sustainable Excellence for Head Start Programs

About the Collaborative
July 2022

Noticing Same and Different: The Concept of Comparison with Infants and Toddlers

Focus on the Child
July 2022

The CAIR Principle to Tune into Math for Babies and Toddlers

Focus on the Child
March 2022

Denver Head Start Teachers Sustain Children’s Growth in Math

About the Collaborative
February 2021

Early Childhood Teachers Look Back on a Year Like No Other

About Early Math
December 2020

New Book Tells Where to Find Math Fun in Books, Games, and Routines

About the Collaborative
September 2019

Teachers as Knowledgeable Others in the Spotlight at Math Conference

About the Collaborative
April 2019

New Book Connects Early Math Teaching with Developmental Research

About the Collaborative
October 2018

10 for 10: Things We Love About the Collaborative

About the Collaborative
December 2017

Looking at 10 Years of Collaboration

About the Collaborative
December 2017

10 Years of Collaboration: A Letter from Our Principal Investigator

About the Collaborative
November 2017

Addressing Babies and Toddlers, Innovative Math Project Enters New Phase

About the Collaborative
December 2016

Collaborative Travels to Canada to Share Early Math Games and Activities

About the Collaborative
May 2016

At the White House: Reflections on the Early STEM Symposium

About the Collaborative
April 2016

Collaborative Highlights CPS Work at National Math Teacher Conference

About the Collaborative
February 2016

Collaborative Takes Math Approach to Hawaii’s Center for Early Education and Development

About the Collaborative
January 2016

At NAEYC Conference, Collaborative Talks Math for Babies and Toddlers

About the Collaborative
December 2015

Math Learning That Builds Confidence

Choose from Erikson’s Summer Learning Institute math sessions, which explore learning foundations and mathematical focus to help educators foster clarity, confidence, and joy in early math.

See Math Sessions