How to Use Subitizing Cards in the Classroom

You roll a die, look at the dots, and instantly know that you rolled 5. When glancing at the plate of cookies, you quickly know there are 2 left. Looking at your stack of library books, you can immediately tell that there are 4 books in the stack. In all of these situations you are subitizing. What is Subitizing? Subitizing is the ability to rapidly recognize how many objects in a group. In each of the examples above, you did […]

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