Embedded Files
Overview
Overview
Cardinality is the idea that the last count of a group of objects represents the total number of objects in the group.
A child who recounts when asked how many candies are in the set that he or she has just counted does not yet understand cardinality.
While students are learning the counting principles, these principles, such as cardinality, are important foundational skills that must be consolidated into a strong understanding. You will find that many of the counting principles are interconnected. Once students have a solid understanding of the counting principles, many of them will become key ideas that support students as they develop addition/subtraction strategies for learning mathematics.
Supporting Students with Cardinality
Supporting Students with Cardinality
To support students learning to understand the principle of cardinality, ask students to count a set of objects and then explicitly ask them how many are in the set. Have students match digits to the correct set of objects.
Games to Promote Cardinality
Games to Promote Cardinality
Memory Match
Memory Match
In this version of Memory Match, students will be looking for a pair of cards that make a "match", one that shows a numeral and the other that shows that same quantity represented as an image.
Memory Match game instructions (English)
Cardinality Match Cards (BLM)
Cardinality Dominoes
Cardinality Dominoes
In this version of dominoes, students will be looking for parts on the domino cards that make a match (e.g., one that shows a numeral and the other that shows that same value represented as an image).
Cardinality Dominoes game instructions (English)
Cardinality Domino Cards (English)
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