In general, subitizing is the ability to “see” or visualize a small amount of objects and know how many there are without counting. While this idea...

# Category - Number Sense

Cardinality is the counting and quantity principle referring to the understanding that the last number used to count a group of objects represents...

One to One Correspondence is the counting and quantity principle referring to the understanding that each object in a group can be counted...

Abstraction is the counting and quantity principle referring to the understanding that we can count any collection of objects, whether tangible or...

Conservation is the counting and quantity principle referring to the understanding that the count for a set group of objects stays the same no matter...

The order in which items are counted is irrelevant. Students have an understanding of order irrelevance when they are able to count a group of items...

The first principle of counting involves the student using a list of words to count in a repeatable order. This “stable list” must be at least as...