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Worksheet
Helping with Math

Factors with Prime and Composite Numbers (2 of 2)

For Students 4th - 6th Standards
Ten two-digit numbers are listed for fourth graders to factor. Once they have factored each, they circle whether the original number is prime or composite. If you click on the "Print Worksheet" button, the printable spreads the problems...
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Lesson Plan
Curated OER

What Are You - Prime or Composite

For Teachers 8th - 10th
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....
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Lesson Plan
Curated OER

Using Square Tiles to Investigate Numbers

For Teachers 5th
Fifth graders model and distinguish between prime and composite numbers. Students are paired up with another classmate to complete this instructional activity. Students are assigned different numbers to work with, they use square tiles...
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Lesson Plan
Curated OER

Transition to algebra

For Teachers 9th - 10th
Students recognize the difference between a prime and a composite number.  In this prime and composite number lesson, students  use a factor tree model to show prime factorization. Students participate in a bingo activity. Students...
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Worksheet
Curated OER

Finding Factors

For Students 6th - 8th
For this finding factors worksheet, middle schoolers practice finding all the factors of 24 in twenty word equations and then find the prime factorization in ten equations.
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Lesson Plan
Curated OER

Prime and Composite Numbers, Prime Factorization

For Teachers 6th - 8th
Students research prime and composite numbers. With a partner, students use graph paper to draw rectangles of various sizes. They list the dimensions of rectangles and discuss how the dimensions relate to the factors of each number....
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Lesson Plan
Curated OER

Prime and Composite Numbers

For Teachers 5th
Fifth graders use prime factorization to identify prime and composite numbers. They use cubes to find factors. In groups, 5th graders draw rectangular arrays to discover prime numbers under 100.
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Lesson Plan
Curated OER

Prime and Composite Numbers

For Teachers 8th
Eighth graders explore prime and composite numbers. Given division problems, they use color tiles to model solutions to division problems. Through activities and observation, 8th graders discover the meaning of prime and composite...
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Lesson Plan
Curated OER

Prime and Composite Numbers

For Teachers 6th
Sixth graders 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, 6th graders play a "Prime Take Away" activity to reinforce prime...
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Lesson Plan
Curated OER

Prime Factorization

For Teachers 6th
Sixth graders participate in a lesson that focuses on the concept of finding the prime factorization of a number. They write the answer using exponential notation. Students play a game of Bingo to keep engaged during the lesson.
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Lesson Plan
Curated OER

Prime Time

For Teachers 5th
Fifth graders complete activities related to prime and composite numbers. In this prime instructional activity, 5th graders make a hundreds chart with all the prime numbers. They create their own card game which deals with prime and...
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Lesson Plan
Curated OER

Mathematics: Prime and Composite Numbers

For Teachers 6th
Sixth graders explore how to apply the commutative property and the rules of divisibility. They examine the difference between prime and composite numbers.
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Lesson Plan
Curated OER

Prime and Composite Numbers

For Teachers 5th - 6th
Students identify prime and composite numbers. In this prime and composites lesson, students are given the rules for identifying prime and composite numbers by the teacher, who gives examples on the board. Individuals then complete a...
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Lesson Plan
Curated OER

Prime and Composite Numbers with use of manipulatives (Elementary, Mathematics)

For Teachers 5th - 6th
Students learn what prime and composite numbers are. They learn how to identify them by working in a group and demonstrating an understanding of one work problem with 100% accuracy using the manipulatives provided.
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Lesson Plan
Curated OER

Prime Time

For Teachers 7th
Seventh graders practice determining the prime factorization of composite numbers. They create Christmas factor trees for prime numbers greater than 100. They decorate their final products with markers, crayons, colored pencils, glitter...
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Lesson Plan
Curated OER

Factor Game (Number Theory)

For Teachers 6th - 8th
Students use a Factor Board game to identify the properties of prime, composite, abundant, deficient and perfect numbers. The game is comprised of the numbers from 1 to 30 placed in a 5 by 6 grid. Pupils figure out they can score more...
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Lesson Plan
Curated OER

Am I Am I Prime?

For Teachers 7th
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...
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Lesson Plan
Curated OER

Prime and Composite Numbers

For Teachers 5th
Fifth graders 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.
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Worksheet
Curated OER

Factoring Numbers

For Students 4th - 6th
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.
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Lesson Plan
Curated OER

Prime Factors

For Teachers 5th
Fifth graders review the concept of prime factorization. Then, they use the rules for divisibility and other notions to find the prime factorization of unfamiliar numbers. They solve problems in a whole class setting.
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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...
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Lesson Plan
Curated OER

Construction Square Fun

For Teachers 6th - 8th
Students identify numbers as prime or composite and complete prime factorization of composite numbers.
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Worksheet
Curated OER

Factors and Greatest Common Factor

For Students 9th
In this factors and greatest common factor learning exercise, 9th graders solve and complete 14 different problems. First, they state whether each number is prime or composite. Then, students find the prime factorization. In addition,...
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Lesson Plan
Curated OER

Prime Numbers and Factors

For Teachers 4th - 6th
Students determine factors of numbers to 100 and identify prime factors; students differentiate prime and composite numbers by the factors of the numbers.

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