Prime or Composite: Using Area Models to Determine Number Types

The video tutorial explains how to determine if a number is prime or composite using area models. It begins by introducing the concepts of prime and composite numbers, followed by a review of area models and common misconceptions about odd numbers. The tutorial then demonstrates how to identify prime numbers by showing that they have only one set of factors, 1 and itself, using the number 5 as an example. It contrasts this with composite numbers, which have multiple sets of factors, using the number 9 as an example. Finally, the tutorial applies these concepts to determine that the number 15 is composite, as it can be represented by more than one area model.

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