May 19, 2021
What is cardinality? And how is it related to counting? The common definition of cardinality states that it’s the understanding that the last number word said when counting tells how many in all.
In her presentation “Cognition and Early Childhood Numeracy: How Number Concepts are Built and Why Input Matters,” Kelly Mix bridged research and practice in her discussion of math language and learning.
At Promising Math 2019, Kelly Mix gave a talk about how language promotes the development of numerical cognition in young children. Dr. Mix is the Chair of the Human Development and Quantitative Methodologies department at the University of Maryland.
After years of studying 3- and 4-year old children of diverse linguistic and cultural backgrounds, Barbara Sarnecka has zeroed in on the importance of cardinality.
There are all kinds of things to count in pre-k to second grade classrooms. Counting Collections is an activity that develops the Big Ideas of number sense and counting, such as cardinality, one-to-one correspondence, and unitizing.
En Español También. Here you can download cards and simple-to-learn game ideas to help young children build their understanding of early math concepts such as cardinality, composing and comparing numbers, and allowing them to subitize.