Illustrative Mathematics
Bake Sale
Put math into action with the real-life scenario of a bake sale. The participants at this bake sale are ready to divide their fresh-baked cookies into bags. It is up to your number crunchers to help decide how many cookies should go in...
Curated OER
Relating GCF and LCM for Grade Six
In this relating GCF and LCM for Grade Six activity, 6th graders answer ten multiple choice questions about factors and multiples, with answers available onscreen.
Math Mammoth
GCF and Simplifying Fractions
For this math activity, students find the greatest common factor of 18 pairs of numbers. Given the prime factorization of pairs of numbers students find the greatest common factor. Students simplify fractions and rational expressions.
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...
Curated OER
Greatest Common Factors
Students go over the examples given of the greatest common factors as a class. They then take the information they have studied and apply it by completing the worksheet independently.
Curated OER
Greatest Common Factor: Practice
In this greatest common factor activity, students list the factors for each number and find the greatest common factor of the numbers. Students then write the prime factorization using exponents of each number and find the greatest...
Curated OER
Greatest common factor
In this greatest common factor learning exercise, students find the greatest common factor of a pair or group of 1 to 2 digit numbers. Students complete 80 problems and 16 review problems.
Curated OER
More Factors and Multiples: Greatest Common Factor: Pre Test
In this greatest common factor worksheet, learners answer multiple choice questions about problem solving and rules of the greatest common factor in numbers. Students complete 10 questions total.
Curated OER
More Factors and Multiples: Greatest Common Factor
In this greatest common factor activity, students answer multiple choice questions about how to find the greatest common factor and actually finding it in problems. Students answer 10 questions total.
Curated OER
Greatest Common Factors
For this algebra worksheet, students solve problems using the GCF. They factor out the common variables and simplify the equations. There are 8 questions with an answer key.
Curated OER
Greatest Common Factor
In this GCF 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.
Curated OER
Greatest Common Divisor
In this greatest common divisor learning exercise, students use prime factorization to determine the greatest common factors of two or more numbers. Explanations and examples are provided. This two-page learning exercise contains ten...
Curated OER
Leveled Problem Solving Greatest Common Factor
In this factorization worksheet, 6th graders solve 6 word problems by finding the greatest common factor for sets of numbers. They apply the information to determine the answers.
Curated OER
Finding the Greatest Common Factor Quiz
In this greatest common factors quiz activity, students solve 20 problems that require them to identify the greatest common factors for lists of numbers. Students also use their problem solving skills to solve 4 word problems.
Curated OER
Greatest Common Factor
In this greatest common factor practice worksheet, students use problem solving skills to find the greatest common factor for 5 pairs of single and double digit numbers.
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
Worksheet #9 - Factoring Polynomials
Factoring practice using the GCF, difference of squares, and factoring by grouping is included in this worksheet. Questions are either short answer or multiple choice.
Curated OER
Fractions in Simplest Form
In this fractions worksheet, 5th graders write the factors of 12 and 16, write the greatest common factor of 12 and 16, divide by the greatest common factor for 12/16 and write what the simplest form is of the fraction 12/16. Students...
Curated OER
Chapter 2 Review: Prime Factorization
In this prime factorization instructional activity, 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,...
Curated OER
Fractions VI: Simplifying Fractions
This fractions PowerPoint defines and gives examples of factors and greatest common factors, then introduces the steps involved in simplifying a fraction. Plenty of guided practice is provided for each step.
Scholastic
Study Jams! Prime & Composite Numbers
Prime or composite, that is the question. Teach your class how to find the answer with this step-by-step presentation that defines and provides examples of each type of number. When addressing larger numbers, divisibility rules are...
National Security Agency
Fraction Fever
This unit on fractions allows for upper-aged elementary learners to explore ways to find the greatest common factor and least common multiple of two numbers. Ultimately, young mathematicians will be able to identify equivalent fractions,...
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...