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Worksheet
Curated OER

Chapter 2 Review: Prime Factorization

For Students 6th - 8th
In this prime factorization worksheet, learners find the prime factorization of numbers by using a factor tree. They compare fractions and identify equivalent fractions, and find the greatest common factor, order numbers, and convert...
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Worksheet
Curated OER

Factors and Factorization

For Students 6th - 8th
In this factors worksheet, students list all factors of given numbers.  All numbers are positive and contain two to three digits.  This four-page worksheet contains 28 problems.  Answers are provided.
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Worksheet
Curated OER

Finding Factors

For Students 6th - 8th
In this finding factors worksheet, students 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 Factorization: Finding Factors in the Fifth Grade

For Teachers 5th
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...
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Worksheet
Curated OER

LCM-Factor Trees

For Students 4th - 6th
In this LCM learning exercise, students use work space provided to create factor trees and find the LCM of sets of numbers. Answers are included on page 2.
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Lesson Plan
Curated OER

Prime Numbers and Factors

For Teachers 5th - 7th
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,...
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Lesson Plan
Curated OER

Greatest Common Factor: Using the Factor Tree

For Teachers 9th - 10th
Young scholars find the greatest common factor of two numbers. In this algebra lesson, students use prime factorization to find their factor to simplify equations. they create a factor tree to find the factors of composite numbers.
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Worksheet
Curated OER

Prime Factorization Worksheet

For Students 4th - 6th
Here's a prime factorization practice worksheet in which learners sharpen their problem solving skills as they solve six story problems.
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Worksheet
Curated OER

Exponents and Prime Factorization

For Students 6th - 7th
In this exponents and prime factorization practice worksheet, learners sharpen their problem solving skills as they solve six story problems.
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Worksheet
Curated OER

Factor Trees and GCF

For Students 6th - 8th
In this prime factorization and greatest common factor instructional activity, students use factor trees to find the prime factorization of 8 numbers. They find the GCF of six pairs of numbers.
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Lesson Plan
EngageNY

Modeling Using Similarity

For Teachers 8th Standards
How do you find the lengths of items that cannot be directly measured? The 13th installment in a series of 16 has pupils use the similarity content learned in an earlier resource to solve real-world problems. Class members determine...
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Lesson Plan
Alabama Learning Exchange

How Old Is That Tree?

For Teachers 3rd - 5th
Fifth graders study environmental changes by examining the annual rings of a cross-section of a tree trunk. They access websites to complete a worksheet on the parts of a tree. They count the annual rings on a tree slice while observing...
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Lesson Plan
Curated OER

Factor Trees

For Teachers 3rd - 5th
Students practice factor trees. They use Paint in Microsoft Word to create factor trees. After completion, they use a calculator to check their answers. In addition, they visit websites to reinforce the information.
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Worksheet
Curated OER

Prime Factorization

For Students 5th - 8th
In this prime factorization worksheet, students complete factor trees for 2 digit numbers to find their prime factorization. Students complete 6 problems.
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Worksheet
Curated OER

Prime Factorization with Factor Trees (1 of 2)

For Students 4th - 6th Standards
Six numbers (12, 32, 50,48,36, and 75) are given to learners to craft factor trees with. The first one is completed as an example in this first of two similar online worksheets. Note that where factorization is an foundational step in...
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Worksheet
Curated OER

Prime Factorization, Equivalent Fractions and GCF review

For Students 7th - 9th
In this sample test worksheet, students solve twenty-five problems covering prime factorization, equivalent fractions, greatest common factor, and plotting on a number line.  Solutions are provided.
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Worksheet
Curated OER

Unit 2: Factors

For Students 6th - 9th
In this factors worksheet, students identify prime numbers.  They use a Sieve of Eratosthenes to identify prime numbers.  Students complete factor trees and explore perfect numbers.  This factoring unit contains eight pages.  Each page...
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Lesson Plan
EngageNY

Between-Figure and Within-Figure Ratios

For Teachers 9th - 10th Standards
Tie the unit together and see concepts click in your young mathematicians' minds. Scholars apply the properties of similar triangles to find heights of objects. They concentrate on the proportions built with known measures and solve to...
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Worksheet
Curated OER

SAT Grid Ins Practice Test 09

For Students 9th - 12th
In this SAT practice worksheet, high schoolers solve 10 grid in problems.  Students find surface area, slope, mean, factors, etc.
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Worksheet
Curated OER

Greatest Common Factor: Reteach

For Students 5th - 6th
In this greatest common factor worksheet, students review the different ways to find the greatest common factor for numbers including listing all the factors and finding prime factorization with factor trees. Students then list the...
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Lesson Plan
Curated OER

Abiotic and Biotic Factors

For Teachers 3rd - 5th
Learners examine abiotic and biotic factors. They define biotic and abiotic, categorize a list of items onto a Venn diagram, label various items from areas on the school grounds as biotic or abiotic, and diagram a magazine picture.
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Worksheet
Curated OER

Greatest Common Factor

For Students 4th - 5th
In this GCF learning exercise, students fill in missing numbers in factor trees and write the prime factorization to find the greatest common factor. Worksheet includes links to answers and additional worksheets.
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Worksheet
Curated OER

Greatest Common Factor #2

For Students 4th - 5th
In this GCF worksheet, students fill in missing number in factor trees, then determine whether numbers are prime or composite. Worksheet includes links to answers and additional worksheets.
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Lesson Plan
Curated OER

Super Factors

For Teachers 5th - 8th
Students complete activity pages. In this factors lesson, students practice finding the factors of numbers. They discuss prime factors and prime factorization and learn how to complete a factor tree.