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Erikson Institute Early Math Collaborative
Early Math Collaborative
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Idea Library

What is Subitizing?

This visual number sense empowers children and fosters a meaningful understanding of quantity. Delve into our resources associated with the skill we call subitizing.

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Book

Growing Mathematical Minds

Our new book explores the connections between research and early childhood teachers. "Growing Mathematical Minds is a remarkable, lucid, and inviting introduction to early math education."

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The Erikson Institute Early Math Collaborative is transforming the understanding, teaching and learning of early mathematics from the ground up.

  • Professional development
  • Online learning
  • Instructional coaching
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Online Learning

Professional development modules

Our self-guided modules provide materials, strategies, and expert guidance for working with adult learners to explore foundational mathematics. Whether you are working with childcare providers, in-service teachers, or pre-service teachers, modules give you what you need to support professional learning in your local context.

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Idea Library
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adding and subtracting
Series: Focus on the Child

Subtraction as the Inverse of Addition with Child 5

November 17, 2018

This second grader uses a known number combination (3 + 9) to solve a subtraction problem, showing an understanding of how addition and subtraction are related as inverse operations. Focus on the Child videos are taken from one-on-one interviews with individual children. The interviews are designed to elicit evidence of children’s mathematical thinking.

  • Topics Number and Operations: Base Ten
  • Age/grade 1st Grade, 2nd Grade, 3rd Grade
  • Tags Child 5
overcoming math anxiety
Series: Hear from the Experts

Is Overcoming Math Anxiety A Way To Improve Student Performance?

June 17, 2014

In this downloadable pdf article, professors Sian Beilock of the University of Chicago and Daniel Willingham of the University of Virginia explore overcoming math anxiety, its importance in the math classroom, and implications for preparing teachers to teach math.

  • Age/grade 1st Grade, 2nd Grade, 3rd Grade, Kindergarten, Pre-K
  • Tags Math Anxiety
math common core standards
Series: About Early Math

For Early Learning in Math, Common Core Standards Present Opportunities, Struggles

July 11, 2014

In this article of the Harvard Education Letter, Collaborative staff and others discuss the changes taking place in early math. Common Core standards and their implementation are influencing the curriculum and lesson planning, particularly in choosing…

  • Age/grade 1st Grade, 2nd Grade, 3rd Grade, Kindergarten, Pre-K
  • Tags CCSS, Common Core
how to count counting words
Series: Focus on the Child

Learning the Counting Words with Child 16

December 17, 2018

A child counts as high as she can. Focus on the Child videos are taken from one-on-one interviews with individual children. The interviews are designed to elicit evidence of children’s mathematical thinking.

  • Topics Counting and Cardinality
  • Age/grade Kindergarten, Pre-K
  • Tags Child 16
three dimensional shapes
Series: Focus on the Child

Transforming Three-Dimensional Shapes with Child 36

December 12, 2018

This child successfully attempts to match geo-solids using triangular prism-shaped blocks. Focus on the Child videos are taken from one-on-one interviews with individual children. The interviews are designed to elicit evidence of children’s mathematical thinking. They are not teaching episodes or formal assessments.

  • Topics Geometry
  • Age/grade Kindergarten, Pre-K
  • Tags Child 36, English Language Learner
one to one correspondence
Series: Focus on the Child

One-to-One Correspondence with Child 15

December 10, 2018

A child counts an organized collection of bears. Focus on the Child videos are taken from one-on-one interviews with individual children. The interviews are designed to elicit evidence of children’s mathematical thinking. They are not…

  • Topics Counting and Cardinality
  • Age/grade Kindergarten, Pre-K
  • Tags Child 15

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Early math is big.

Learn why we are so passionate about giving every child a strong foundation in math.

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