Abstraction is the counting and quantity principle referring to the understanding that we can count any collection of objects, whether tangible or not.

For example, the quantity of five large items is the same count as a quantity of five small items or a mixed group of five small and large things.

Another example may include a student being able to count linking cubes that represent some other set of objects like cars, dogs, or bikes.

For a full summary of all counting principles, read the original blog post.

kylepearce3

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