How Subitizing Fuels Number Sense

How Subitizing Fuels Number Sense

Doug Clements shared insightful information regarding the value of subitizing.

3 BIG takeaways from the session:

  1. Subitizing and counting grow together.
  2. Perceptual subitizing is the ability to see as one amount, versus conceptual subitizing is the ability to see as parts. BOTH are important to mathematical development!
  3. Subitizing is “not an age thing,” as Doug states in the session. Once students acquire conceptual subitizing to 10 and 20, they are able to develop visualization of mental strategies for basic facts and beyond. You can even incorporate subitizing with place value blocks, discs, and multiplicative reasoning.

Mathodology supports teachers and students with basic fact fluency materials to integrate within the implementation of mathematics curricula. Preview our Quick Looks that provide subitizing opportunities for building knowledge around the basic facts.

Teachers with the online teacher tool kit, Quick Looks for addition have now been added to the Fluency section of your tool kit!

Up next:

Share this Video

Get Our Newsletter

This field is for validation purposes and should be left unchanged.
Name(Required)
By signing up, you're consenting to receive marketing emails from Mathodology. Unsubscribe anytime.

Related Videos

Rethinking Long-Held Beliefs in School Mathematics to Help Students Believe They Are Math People
Fawn Nguyen is the Director of STEM Initiatives at Amplify, following a 30-year career teaching middle school math and coaching educators. An award-winning educator and international speaker, she serves on the Mathematics Project Leadership Team at UC Santa Barbara and founded resources like visualpatterns.org and the Math Teachers’ Circle in Thousand Oaks. Fawn also writes a teaching blog on Substack and is known for her leadership in math education.
Keys to Building Fact Fluency
Jennifer M. Bay-Williams is a mathematics teacher educator at the University of Louisville and a nationally recognized leader in K–12 math education. She’s the author of influential books like Elementary and Middle School Mathematics: Teaching Developmentally and the Figuring Out Fluency series, and has served on the boards of NCTM and TODOS. Bay-Williams continues to work directly with teachers and students, supporting math fluency and strong mathematical identities across the country.
Starting with a Story: Using Children’s Books to Spark Mathematical Thinking
Sue O’Connell has spent many years working in elementary schools as a teacher, math coach, reading specialist, and school improvement leader. She is a popular speaker and consultant who explains teaching strategies in a clear and practical way. Sue focuses on helping teachers build students’ math thinking skills. She is the lead author of the Math in Practice and Math by the Book series, as well as other books about teaching math to young children. She also created learning centers for hand2mind that help students practice math in meaningful ways. Sue often speaks at math conferences across the country.