Subitize Dots to 20

Activity Type: Small Group

Conceptual Subitizer to 20

Quick Description:

Children tell how many dots they see on cards or plates with totals of 11 to 20 after seeing the arrangements of dots for about two seconds and explain how they knew. (Adapted from: Building Blocks.)

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Special Thanks To

Institute of Education Sciences
The research reported here was supported by the Institute of Education Sciences, U.S. Department of Education, through grant numbers R305K050157, R305A120813, R305A110188, and R305A150243. to the University of Denver. The opinions expressed are those of the authors and do not represent views of the Institute or the U.S. Department of Education.