Counting Collections 

We began this year in math by counting collections. Some started using systems to keep track of counted/uncounted objects. Others sorted and classified the objects before determining how many there were. Some made piles of 5, 10, or 25 because it was easier to count the large quantity by breaking them into doable groups. Some grouped their piles of 10 into rows, or groups of 100. A few learners decided to record their math thinking in order to keep track of how many they had counted. Here are some of the important lessons that are beginning to emerge authentically as learners count:

• Mathematicians count

• Mathematicians organize

• There is more than one way to organize a collection

• Mathematicians record

• Mathematicians record in ways that match the way they’ve organized their collection

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