Multiplication and Division (1) - Prime Numbers - Worksheet

In an educational worksheet designed to deepen children's understanding of prime and composite numbers, students are presented with a list of numbers to categorize. The task is to sort these numbers into a simple table, distinguishing between prime numbers, which have only two factors (1 and the number itself), and composite numbers, which have more than two factors. The exercise is structured to encourage students to recall and apply the definition of prime numbers, and they are prompted to explain the reasoning behind their classifications. Initial explanations are provided to guide children on how to determine if a number is prime, laying the groundwork for independent problem-solving and critical thinking.

As the worksheet progresses, the complexity increases, challenging students to sort numbers beyond the basic prime numbers up to 19 and to provide detailed explanations of their methods. The activity is designed to foster fluency and precision in identifying prime and composite numbers. In the final section, students must not only sort numbers into the correct categories but also articulate the steps involved in determining the category of each number. This comprehensive approach ensures that children not only memorize facts about prime numbers but also understand the underlying concepts, enabling them to check any number for primality or compositeness effectively.