Curated OER
Factor Trees
In this factor trees worksheet, students make factor trees for 2 through 4 digit numbers. Students complete 20 factor trees for these numbers.
Curated OER
Using a Factor Tree to Find the GCF
Learners use the example of a factor tree to find the greatest common factor of three numbers in four problems.
Scholastic
Study Jams! Prime Factorization
Deepen the number sense of young mathematicians by exploring the process of prime factorization. Follow along with this step-by-step presentation that explains how factor trees are used to break a composite number down into its prime...
Scholastic
Study Jams! Tree Diagrams
With so many toppings to chose from, make the ice cream truck combinations a fun math problem that teaches your learners about outcomes. The video introduces a tree diagram that allows your mathematicians to see how to create...
Helping with Math
Prime Factorization with Factor Trees (2 of 2)
The publisher has tagged this resource as designed to meet CCSS.Math,Content.6.NS.4, but it really is only the first step in the process of determining least common multiples and greatest common factors. Six numbers are given for...
Curated OER
LCM-Factor Trees
In this LCM worksheet, students use work space provided to create factor trees and find the LCM of sets of numbers. Answers are included on page 2.
Curated OER
Prime Factorization Worksheet
Here's a prime factorization practice worksheet in which learners sharpen their problem solving skills as they solve six story problems.
Alabama Learning Exchange
How Old Is That Tree?
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...
Curated OER
Factor Trees
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.
Curated OER
Prime Factorization with Factor Trees (1 of 2)
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...
Curated OER
Greatest Common Factor
In this GCF instructional activity, 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.
Curated OER
Greatest Common Factor #2
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.
Math Mammoth
Factoring and Primes 2
In this factoring learning exercise, students read about prime factorization, factor using factor trees, build numbers from primes and complete a challenge puzzle.
Curated OER
Factors Worksheet
In this listing factors learning exercise, students examine 30 math problems that require them to list the factors of 1-digit and 2-digit numbers.
Curated OER
Positive Proper Factors Worksheet
In this factors learning exercise, learners list the positive proper factors for 20 specific numbers. Students record their answers in the boxes provided.
CK-12 Foundation
Prime and Composite Numbers
Nine true or false, multiple-choice, and discussion questions make up an interactive designed to reinforce scholars' knowledge of prime and composite numbers. A number chart reveals every prime number through 100.
Curated OER
Chocolate Math
Students practice solving math equations by analyzing chocolate recipe measurements. In this chocolate baking math lesson, students read about the Hershey factory and recipes used to create chocolate bars. Students solve problems and...
Curated OER
Trees For Trout!
Fourth graders determine the impact of native forests, local clearcuts and local clearcuts and local reforestation projects on the survivablity of Rainbow Trout in their area. They record and document the stages of the trout throughout...
Curated OER
Missing Numbers - Multiplication Virtual Worksheet
For this multiplication worksheet, students complete 72 vertical problems in which they find the second factor using the product and one factor. They can complete the worksheets online or print them out.
Curated OER
The Generation of Fractions
Young scholars explore the process of reducing fractions to simplest form by using a multiples grid. In this simplest form lesson, students pull different fractions out of a bag and then consult their grid to discover all the multiples...
Curated OER
Least Common Multiple Practice 2
In this least common multiples practice worksheet, students examine sample problems and solve 20 problems that require them to find least common multiples.
Curated OER
Least Common Multiple Practice
In this least common multiples practice worksheet, students examine sample problems and solve 20 problems that require them to find least common multiples.
Curated OER
Least Common Multiple Practice 3
In this least common multiples practice worksheet, students examine sample problems and solve 20 problems that require them to find least common multiples.
Curated OER
Divisibility Worksheet
In this divisibility worksheet, students complete 9 problems in which they determine which number is divisible by the given number. They choose between 4 numbers for each divisibility factor. They complete the pages on-line and print the...