Curated OER
Prime Numbers and Factors
Solving factor trees is a helpful way to introduce prime numbers. Your math class practices using this method along with two-column tables to find if a number is prime or not. They also learn other vocabulary, such as composite numbers,...
Curated OER
Time for Prime
Explore prime numbers. Learners use an interactive 100's chart to identify prime numbers, discuss a glossary of terms, use cards to list multiples of 2,3,4,5, and play a bingo game.
Curated OER
Primes and Prime Factors
In this primes and prime factors worksheet, 8th graders solve 21 different problems to include identifying each number as prime, composite, or neither prime nor composite and listing all the primes less than 200. Then they complete each...
k12 Math Worksheets
Prime Factorization
Your learners will get plenty of prime factoring practice with this one-page math instructional activity.
Curated OER
Prime and Composite
Middle schoolers explore prime and composite numbers. In this prime and composite numbers lesson, students discover the difference between prime and composite. Middle schoolers practice as a class then do independent practice.
Curated OER
Prime Numbers
For this prime numbers worksheet, students read facts and complete comprehension activities. In this graph construction and drawing worksheet, students complete two activities.
Curated OER
What Are You - Prime or Composite
Students explore the concept of prime factorization. In this prime factorization activity, students participate in an activity where they find the prime factorization and greatest common factor of a number derived from their name....
Curated OER
Counting From 1 to 20
Children are given a mixed up number chart 1-20, and are asked to sort out all the even, odd, prime, and composite numbers. This worksheet is intended for 2nd grade but may not be suitable for learners under 10 or those who have not yet...
Curated OER
Prime and Composite Numbers
Sixth graders inspect prime and composite numbers. Using graph paper, they draw as many different shaped rectangles as possible. They use the dimensions of the rectangles to discuss prime and composite numbers. Students create a chart...
Curated OER
Prime and Composite Numbers
Sixth graders identify prime and composite numbers. They participate in a hands-on activity to discover the multiples and factors of specified numbers. They write a paragraph to explain representing factors.
Curated OER
Am I Am I Prime?
Seventh graders determine if a number is prime or composite. In this determining if a number is prime or composite lesson, 7th graders use a website to help find all prime numbers between 1 and 100. Students use a website to find...
Curated OER
Prime Numbers and Factors
Students determine factors of numbers to 100 and identify prime factors; students differentiate prime and composite numbers by the factors of the numbers.
Curated OER
Prime Time
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.
Curated OER
Sieve of Eratosthenes
Young scholars discover the Sieve of Erathosthenes. They explore a method to find all the prime numbers in a group of numbers. Using models, students practice divisibility rules while examining the difference between prime and composite...
Scholastic
Study Jams! Divisibility Rules
Learning division is a challenge for many young mathematicians, but this presentation on divisibility rules can make it much easier. Seven different rules are clearly explained and modeled with the support of multiple examples. Consider...
Curated OER
Numbers 1.1
In this numbers 1.1 worksheet, learners solve 64 problems about all kinds of numbers: rational, irrational, prime, composite, square roots, fractions, decimals.
Curated OER
Prime Factorization: Finding Factors in the Fifth Grade
The lesson starts out with a brain drain, which is a great way to get students to activate prior knowledge and build lasting connections. They tell everything they know about prime factorization, use their knowledge to...
Curated OER
Prime Numbers
Students differentiate between prime and composite numbers. In this algebra instructional activity, students define the terminology and investigate the contributions made by Eratosthenes and Euclid as it relates to prime numbers....
Curated OER
Factoring Numbers
In this factoring worksheet, students read about composite and prime numbers. They then read through 2 example problems regarding factors. Finally, students solve the 6 problems at the bottom of the page.
Curated OER
Prime and Composite
Sixth graders practice implementing manipulative's to assess composite and prime numbers. They formulate representations of rational numbers in a variety of ways including graph paper, sieves of Eratosthenes and multiple worksheets.
Curated OER
Construction Square Fun
Students identify numbers as prime or composite and complete prime factorization of composite numbers.
Illustrative Mathematics
Identifying Multiples
Administer an activity that fosters a child's understanding of multiples. Young mathematicians are guided to complete three tasks on a multiplication chart. Once they color the boxes with multiples of two, three, and four, learners...
Willow Tree
Factoring
Build an understanding of factors and use it to write the prime factorization of numbers. After exploring key vocabulary, learners create prime factorization for given numbers. They then use the prime factorizations to determine the...
Curated OER
ISTEP + Grade 6 Item Sampler
In this cross-curricular sampler of worksheets, students determine the meaning of specialized vocabulary and to understand the precise meaning of grade-level-appropriate words, describe and connect the essential ideas, arguments, and...