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- Grade Range
- 5th - 6th
- Rating
Students learn what prime and composite numbers are and how to identify them by working in a group and demonstrating an understanding of one work problem with 100% accuracy using the manipulatives provided. Full Review »
- Grade Range
- 3rd
- Rating
Students listen to information about Eratosthenes and review the definitions: prime, composite, multiples and divisible. They recreate Eratosthenes' method of compiling prime numbers. They create a poster. Full Review »
- Grade Range
- 5th - 8th
- Rating
Students participate in activities to investigate properties of numbers. They identify prime and composite numbers and determine the patterns associated with these numbers. They answer questions associated with each activity. Full Review »
- Grade Range
- 6th - 8th
- Rating
Students determine whether a number is prime or composite. They identify all the whole number factors of a composite number. Pupils explore and use divisibility rules. Students use strategies to determine prime and composite numbers and to arrange a composite number's factors in a rainbow pattern. Full Review »
- Grade Range
- 6th
- Rating
Students identify prime and composite numbers and complete an activity problem. Given a 100 chart, they follow directions to create a prime number chart. In groups, students play a "Prime Take Away" activity to reinforce prime numbers. Full Review »
- Grade Range
- 5th
- Rating
Students use prime factorization to identify prime and composite numbers. They use cubes to find factors. In groups, students draw rectangular arrays to discover prime numbers under 100. Full Review »
- Grade Range
- 5th
- Rating
Students investigate the concepts of composite and prime numbers. They factor different numbers and determine the number of factors for each. Based upon this information the number is declared prime or composite. Full Review »
- Grade Range
- 7th
- Rating
Students compare and contrast prime and composite numbers and multiples. They define key vocabulary terms, read and discuss the order of operations, and observe and participate in a guided lesson that focuses on evaluating numerical expressions, repeated division process of factorization, and rules of divisibility. Full Review »
- Grade Range
- 9th
- Rating
Students compare and contrast the rules of divisibility, prime numbers, composite numbers and multiples. They discuss divisibility, the rules of divisibility, and prime and composite numbers. Students practice working with prime and composite numbers. Full Review »
- Grade Range
- 6th - 7th
- Rating
Students define what prime and composite numbers are and how to identify them. Through games, drills, and quizzes, they identify they rules that make prime and composite numbers. Worksheets and forms are included. Full Review »
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