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The Number Sense Behind the Unit

The Principles of Counting

Cardinality and Subitizing

Comparison, Numerals, and Early Operations

The Misconceptions to Expect

Check Your Understanding: The Mathematics

The number-sense content behind the unit — the counting principles, cardinality and subitizing, how comparison works, numerals, early operations, and the common misconceptions to expect.

You don't need to be a mathematician — but knowing the ideas underneath counting makes you a far better coach. This module unpacks the counting principles, cardinality, comparison, numerals, and early operations, plus the classic misconceptions so you can spot and support them.

The Mathematics Every Teacher Should Know

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