Experiencing Subitizing

Experiencing Subitizing is the first in a six-part series on subitizing.  The links to the other posts will become active this week.


1.  Experiencing Subitizing

2.  The Boundary of Subitizing, “The Rewind Version” 

3.  How to Make Quick Subitizing Images + 3 Free Resources

4.  Beyond Subitizing

5.  These Dots Will Grow on You

6.  Seeing Multiple Perspectives Through Your Eyes and Through the Eyes of Others




Subitizing Question Pic

Follow these links to view Math in Motion, other animated instructional ideas, or 12 Ideas to Propel Your Growth Journey.


  1. I watched the series this morning Steve. Thanks for the introduction.

    Mathematical language is very important. Students and teachers that I work with tend to substitute a synonym instead of the formal terminology –which causes anxiety.

    Have you encountered many teachers using the word “grouping” in lieu of subitizing?

    1. I haven’t noticed that particular substitution, but I have noticed that subitizing is a word that is seldom used.

  2. Steve, Your animated subitizing series is an amazing resource. You might be interested to know that the new edition of Everyday Mathematics, which my district will be adopting, now includes subitizing dot cards and activities as part of its primary grade routines. I plan to use your videos to help our teachers understand the idea and importance of subitizing as part of their PD.

    1. Thanks for sharing, Joe! I’m glad that this will be a helpful resource in your district. I’ll be posting more soon!

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