New! Prime Numbers and Prime Factorization
7th - 10th
Clarify prime numbers, composite numbers, and prime factorization with this worksheet. After looking over definitions, working through prime numbers, and making composite numbers, learners are introduced to prime factorization and the Sieve of Eratosthenes. This resource includes a homework assignment in which mathematicians respond to 7 short answer questions that ask them to solve, identify, and explain mathematical concepts in their own words.
The Language of Mathematics - Prime Numbers
In this recognizing prime numbers worksheet, students complete a list of the first ten prime numbers, use a hundreds chart to identify the prime numbers, and solve word problems. Students solve 11 problems.
In this prime numbers worksheet, students read facts and complete comprehension activities. In this graph construction and drawing worksheet, students complete two activities.
Fourth graders play a game with red and green cards (composite and prime numbers). As a card is drawn students create all possible arrays. The winner of each round is the person with the most arrays. Students discuss their results, and define the terms prime and composite.
Fourth graders define prime numbers and examine which numbers are prime numbers. They access prior knowledge to show multiples in an array. Pupils play a game to determine which numbers are prime numbers.
Numbers in a Multiplication Table
Identifying patterns is a crucial skill for all mathematicians, young and old. Explore the multiplication table with your class, using patterns and symmetry to teach about square numbers, prime numbers, and the commutative and identity properties of multiplication. A great resource for strengthening number sense and fluency with multiplication.
Composite and Prime Numbers
Young math whizzes determine if a number is prime or composite. They use counters to participate in activities that show prime and composite numbers.
Fifth and sixth graders explore prime numbers. They work with a partner to build rectangular arrays using twelve tiles. Factor pairs are noted and recorded on graph paper. Pupils construct rectangular arrays with a prime number and conclude that there is only one possible factor pair.
Ninth graders factor equations and find prime numbers. In this algebra instructional activity, 9th graders find the factors and prime factors of a number using multiples and relatively prime numbers.
Factors, Prime Factorization, Multiples
Seventh graders examine Prime Factorizations, Multiples, and Factors. In this prime number, factorization, and multiples lesson, 7th graders identify greatest common factors and least common multiples. Students use problem solving skills to explore prime numbers, multiples and factorization.
Grade 5: Multiple Towers
Fifth graders use interlocking cubes to build towers to represent factors of numbers and place the towers in the appropriate places on a Tower chart in order to look for patterns. They work in partner groups, and finish by writing statements about prime numbers, composite numbers, and patterns they noticed during the activity.
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