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Interactive
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Scholastic

Study Jams! Divisibility Rules

For Students 2nd - 6th Standards
Learning division is a challenge for many young mathematicians, but this presentation on divisibility rules can make it much easier. Seven different rules are clearly explained and modeled with the support of multiple examples. Consider...
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Worksheet
Curated OER

Primes and Prime Factors

For Students 8th
In this primes and prime factors instructional activity, 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...
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Lesson Plan
Curated OER

Prime Numbers

For Teachers 9th - 11th
Students differentiate between prime and composite numbers. In this algebra lesson, students define the terminology and investigate the contributions made by Eratosthenes and Euclid as it relates to prime numbers. Students apply the...
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Lesson Plan
Curated OER

Investigation-Design Your Own Spinner

For Teachers 6th - 8th
Young scholars design their own spinner that meets the given criteria. In this math lesson, students discuss biased versus unbiased events or outcomes when dealing with probability. Young scholars are given 5 criteria that must be...
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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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Worksheet
Curated OER

Prime Numbers

For Students 3rd - 5th
In this identifying prime numbers from one to fifty worksheet, students review prime numbers and color the prime numbers on the chart. Students color 15 answers. 
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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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Worksheet
Curated OER

Identify Numbers

For Students Higher Ed
In this identify numbers worksheet, students identify prime, composite, perfect, deficient, and abundant numbers listed on a one-hundred board. This two-page worksheet contains one-hundred numbers on each page.
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Lesson Plan
Curated OER

Modeling Prime Factorization

For Teachers 9th - 12th
Students model factors using tiles and grid paper. They differentiate between prime and composite factor trees. Students illustrate prime factorization using factor trees. They are given 12 tiles or cut-out paper squares. Students...
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Worksheet
Curated OER

Math Worksheet: Factoring

For Students 4th - 5th
In this math factoring learning exercise, students write a multiplication equation with prime numbers that equals the given product. There are no examples or explanations of the math vocabulary. There are18 problems to solve.
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Lesson Plan
Curated OER

Number Line Mathematics

For Teachers 3rd - 4th
Young scholars translate problem situations into diagrams, models, and numerals using whole numbers, fractions, mixed numbers, decimals, and percents. They identify that numbers in different forms are equivalent or not equivalent using...
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Worksheet
Curated OER

Counting from 1-20 - Odd and Even Numbers

For Students 2nd
For this number recognition worksheet, 2nd graders examine a number chart that includes the numbers 1- 20. They record all of the even numbers on one line, and all of the odd numbers on a second line.
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Lesson Plan
Curated OER

Prime and Composite

For Teachers 6th
Sixth graders practice implementing manipulative's to assess composite and prime numbers. They formulate representations of rational numbers in a variety of ways including graph paper, sieves of Eratosthenes and multiple worksheets.
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Worksheet
Curated OER

Divisibility

For Students 6th
In this divisibility worksheet, 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 number...
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Worksheet
Curated OER

My Test Book: Rational and Irrational Numbers

For Students 6th - 8th
In this online interactive math skills worksheet, students solve 10 multiple choice math problems regarding rational and irrational numbers. Students may submit their answers to be scored.
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Lesson Plan
Curated OER

Find the Factors and Prime Factors

For Teachers 4th - 6th
Show the class how to find the factors of numbers. They use a variety of strategies, including unifix cubes, to find the factors of a whole number. This resource includes clear procedure to follow. Included are an anticipatory set,...
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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

Prime Time

For Teachers 5th - 8th
Learners participate in activities to investigate properties of numbers. They identify prime and composite numbers and determine the patterns associated with these numbers. They answer questions associated with each activity.
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Activity
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Illustrative Mathematics

Identifying Multiples

For Teachers 3rd - 5th Standards
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...
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Worksheet
k12 Math Worksheets

Prime Factorization

For Students 6th - 8th
Your learners will get plenty of prime factoring practice with this one-page math learning exercise. 
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Worksheet
Curated OER

Probability of Numbers

For Students 4th - 6th
In this probability of numbers worksheet, students begin with the premise that a number is chosen at random from 1-25 and complete 5 probability problems. Answers are included on page 2.
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Activity
Illustrative Mathematics

Use Cavalieri’s Principle to Compare Aquarium Volumes

For Teachers 9th - 10th Standards
Learners are designing a stunning new water feature for an aquarium, but they soon discover that more than just a pretty home for their fishy friends is required.  From calculating the volume of a composite shape through the abstract...
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Lesson Plan
Curated OER

Factors and Fractions

For Teachers 5th - 6th
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...
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Worksheet
Curated OER

Factors and Greatest Common Factor

For Students 9th
In this factors and greatest common factor worksheet, 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, they...

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