Curated OER
Divisibility
In this divisibility learning exercise, 6th graders solve 10 different problems that include determining whether various numbers are divisible by other numbers. They write yes on the line provided if the number is divisible or no if the...
Curated OER
My Test Book: Rational and Irrational Numbers
In this online interactive math skills worksheet, middle schoolers solve 10 multiple choice math problems regarding rational and irrational numbers. Students may submit their answers to be scored.
Illustrative Mathematics
Identifying Multiples
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...
Curated OER
Super Factors
Learners 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.
Curated OER
Factors and Fractions
Find the greatest common factor of numbers. Learners review prime and composite numbers and how to find the prime factorization of a number. They also review the greatest common factor, least common multiple, and learn new ways to find...
K12 Reader
Eratosthenes: Geographer and Mathematician
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.
Houghton Mifflin Harcourt
Unit 4 Math Vocabulary Cards (Grade 5)
Common denominators, factors, and rounding are a few of the terms in a set of flash cards designed to reinforce math vocabulary. Forty-two cards offer a bold-faced vocabulary word or a corresponding definition alongside an example with...
Curated OER
Number Theory Worksheet 2: The Sieve of Eratosthenes
In this primes and multiples activity, 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.
Curated OER
Number Theory Worksheet 2: The Sieve of Eratosthenes
in this number theory worksheet, 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.
Curated OER
Patterns
In this Algebra I worksheet, 9th graders explore number and geometric patterns and use the Sieve of Eratosthenes to find the prime numbers less than one hundred. The six page worksheet contains eight multipart questions. Answers are...
Curated OER
Eratosthenes Sieve¦
In this math worksheet, learners find the prime numbers through going through the factors in sequential order. The answers are used to create the words at the bottom of the page.
Curated OER
Factors and Greatest Common Factor
In this factors activity, 9th graders solve and complete 39 different problems that include determining the greatest common factor to solve. First, they state whether each number is prime or composite. Then, students factors each...
Curated OER
K-5 Mathematics Module: Number and Number Sense
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 in...
EngageNY
Mental Math
Faster than a speedy calculator! Show your classes how to use polynomial identities to multiply numbers quickly using mental math.
Math Solutions
Factor Game
Learning about factors and multiples is all fun and games with this simple math activity. The instructional activity begins with the teacher and class playing the Factor Game together as students figure out the rules and uncover key...
Curated OER
Greatest Common Factor: Using the Factor Tree
Young scholars find the greatest common factor of two numbers. In this algebra instructional activity, students use prime factorization to find their factor to simplify equations. they create a factor tree to find the factors of...
Curated OER
Factors Game
In this factors game activity, teams of students identify factors. They find proper factors of a given number This one-page activity cotnains approximately 40 problems.
Curated OER
Divisibility Rules
Eighth graders explore Excel and discover rules of divisibility for the numbers 2, 3, 4, 5, 6, 9, and 10; students examine multiples of 2 using pencil/ paper, then create a chart in Excel that will allow them to more easily see patterns...
Curated OER
Pascal's Triangle
Students explore the concept of Pascal's Triangle. For this Pascal's Triangle lesson, students use an applet called 'Coloring Multiples' to explore Pascal's Triangle. Students develop patterns starting with various numbers in Pascal's...
Curated OER
Factoring
Ninth graders factor equations and find prime numbers. In this algebra lesson, 9th graders find the factors and prime factors of a number using multiples and relatively prime numbers.
Curated OER
One Hundred Hungry Ants (Multiplication and Division)
Fourth graders explore factors of numbers from 1 to 50. They gain practice with basic facts and multi-digit multiplication problems. Students practice the commutative property. They discover the link between multiplication and...
Curated OER
Number Theory: The Sieve of Eratosthenes
In this number theory activity, students read about The Sieve of Eratosthenes and follow a set of directions to complete a prime number activity and answer 4 related questions.
Curated OER
And the Number Is (Second Grade)
Second graders create Mystery Numbers. They give the class clues about the name, value, and multiples of the digits which make up the number.
Curated OER
Greatest Common Factor #2
For 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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