Worksheet
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K12 Reader

Prime or Composite?

For Students 4th - 5th Standards
Prime numbers? Composite numbers? Prime factorization? After reading a short article about factors and prime and composite numbers, kids answer a series of comprehension questions based on the text.
Organizer
Super Teacher Worksheets

Prime and Composite

For Students 4th - 6th Standards
Factoring is an essential component in algebra, and this instructional activity prepares learners with a quick reference guide and examples. After they find all the factors, they decipher whether the number is prime or composite.
Worksheet
Helping with Math

Factors With Prime and Composite Numbers (1 of 2)

For Students 4th - 6th Standards
Math monsters examine nine numbers, factor them, and then determine if they are composite or prime. You can print this worksheet off of the website, but it does not fit neatly onto one page. Consider projecting it on your class screen...
Lesson Plan
Curated OER

Worksheet: Prime or Composite

For Teachers 3rd - 4th
Learners read the definitions for prime and composite numbers. Students then identify the numbers as prime and composite numbers for the 20 problems. They complete a prime search and answer four problems about numbers.
Lesson Plan
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Illustrative Mathematics

Numbers in a Multiplication Table

For Teachers 3rd - 5th Standards
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...
Assessment
Mathed Up!

HCF, LCM, and Product of Primes

For Students 6th - 8th Standards
Give the class a prime example of using prime numbers. After reviewing prime factorization of numbers with the video, pupils use their knowledge to determine greatest common factors and least common multiples in the activity. The...
Worksheet
Curated OER

Primes and Prime Factors

For Students 8th
For 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...
Worksheet
Curated OER

Prime Numbers

For Students 4th - 6th
In this prime numbers activity, students read facts and complete comprehension activities. In this graph construction and drawing activity, students complete two activities.
Activity
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Illustrative Mathematics

Identifying Multiples

For Teachers 3rd - 5th Standards
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...
Lesson Plan
Willow Tree

Factoring

For Students 7th - 10th Standards
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...
Lesson Plan
Curated OER

ISTEP + Grade 6 Item Sampler

For Teachers 5th - 6th
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...
Activity
Curated OER

K-5 Mathematics Module: Number and Number Sense

For Students K - 5th Standards
Reinforce number sense with a collection of math lessons for kindergarteners through fifth graders. Young mathematicians take part in hands-on activities, learning games, and complete skills-based worksheets to enhance proficiency...
Worksheet
Curated OER

Finding Primes-The Sieve of Eratosthenes

For Students 7th - 9th
In this middle school/Algebra I worksheet, students use the sieve of Eratosthenes to determine the prime number less than two hundred.  The one page worksheet contains one problem.  Answer is not provided. 
Worksheet
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K12 Reader

Eratosthenes: Geographer and Mathematician

For Students 4th - 5th Standards
Mathematicians can be famous, too! Introduce your class to Eratosthenes with a reading passage. After they complete the passage, learners respond to five questions, some of which require opinions and others reading comprehension skills.
Worksheet
Curated OER

Number Theory Worksheet 2: The Sieve of Eratosthenes

For Students 5th - 6th
In this primes and multiples worksheet, students follow the directions to circle primes and multiples on a hundred chart until all prime numbers from 1 to 100 are circled. This is called the Sieve of Eratosthenes.
Worksheet
Curated OER

Number Theory Worksheet 2: The Sieve of Eratosthenes

For Students 4th - 6th
in this number theory activity, students use the Sieve of Eratosthenes to find all primes up to the number 100. Students follow the directions to circle primes and multiples on the hundred chart.
Lesson Plan
Virginia Department of Education

Factoring

For Students 9th - 12th Standards
Uncover the relationship between factoring quadratics and higher degree polynomials. Learners develop their factoring skills through repetition. A comprehensive lesson begins with quadratics and shows how to use the same patterns to...
Worksheet
Curated OER

Number Theory: The Sieve of Eratosthenes

For Students 4th - 6th
In this number theory worksheet, students read about The Sieve of Eratosthenes and follow a set of directions to complete a prime number activity and answer 4 related questions.
Worksheet
Curated OER

Division word problems

For Students 5th - 8th
In this division worksheet, students complete division word problems. Students complete 10 multiplication problems that pertain to the concept of division.