Curated OER
Number Theory
Learners explore the concept of number theory. They discuss an assortment of number theory topics such as prime numbers, composite numbers, GCF, modular arithmetic, and others in a lecture style discussion. Pupils view videos about these...
Curated OER
Prime Numbers
In this identifying prime numbers from one to fifty instructional activity, students review prime numbers and color the prime numbers on the chart. Students color 15 answers.
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Investigation-Design Your Own Spinner
Students 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. Students are given 5 criteria that must be incorporated into...
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Prime Real Estate
Young scholars analyze and discuss prime numbers and the Sieve of Eratosthenes, a procedure to sort out prime numbers. They identify the prime numbers from 1-100 by eliminating all the multiples of the first four prime numbers, and...
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Prime Factorization
Sixth graders participate in a lesson that focuses on the concept of finding the prime factorization of a number. They write the answer using exponential notation. Students play a game of Bingo to keep engaged during the lesson.
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Finding Primes-The Sieve of Eratosthenes
In this middle school/Algebra I worksheet, students use the sieve of Eratosthenes to determine the prime number less than two hundred. The one page worksheet contains one problem. Answer is not provided.
Math Solutions
Factor Game
Learning about factors and multiples is all fun and games with this simple math activity. The lesson begins with the teacher and class playing the Factor Game together as students figure out the rules and uncover key...
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Introducing the Concept Prime Factors
Fifth graders identify the prime factorization for 48 using different sets of factors. They find the prime factorization for 60.
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My Test Book: Multiples and Prime Factorization
For this math skills worksheet, students solve 10 multiple choice math problems regarding prime factorization and multiples. Students may view the correct answers.
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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.
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Number Theory Worksheet 2: The Sieve of Eratosthenes
In this primes and multiples worksheet, 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.
EngageNY
Mental Math
Faster than a speedy calculator! Show your classes how to use polynomial identities to multiply numbers quickly using mental math.
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...
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Pascal's Triangle
Learners explore the concept of Pascal's Triangle. In this Pascal's Triangle lesson, students use an applet called 'Coloring Multiples' to explore Pascal's Triangle. Learners develop patterns starting with various numbers in Pascal's...
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Greatest Common Factor: Using the Factor Tree
Students 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.
Virginia Department of Education
Mathematics Vocabulary Cards - Grade 5
Elevate your fifth graders' understanding of math concepts with a series of vocabulary posters. Featuring terms concerning probability and statistics, measurement, algebra, and decimal place value (and many more), the posters are...
CCSS Math Activities
Smarter Balanced Sample Items: 7th Grade Math – Claim 3
Does the explanation make sense? Sample items highlight claim three, communicating reason, in the Smarter Balanced assessments. Teachers use the 16 items to help show pupils the importance of communication and reasoning within...
Virginia Department of Education
Factoring
Uncover the relationship between factoring quadratics and higher degree polynomials. Learners develop their factoring skills through repetition. A comprehensive lesson begins with quadratics and shows how to use the same patterns to...
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Applying Prime Factorization
Sixth graders use the prime factorization of numbers to find the greatest common factor and least common multiple. Working in small groups, they solve problems using the greatest common factor and least common multiple.
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Mathematics Within: Algebraic Processes and Its Connections to Geometry
Fifth graders discover the connections between algebra and geometry. With a focus on arrays and factors, they are introduced to multiplication. They develop an array for multiples of 2 through 10 and identify the factors of each row....
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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. ...
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Factors and Multiples
Sixth graders need to see the relevance in the mathematics they learn. This lesson builds on the concepts of least common multiple and greatest common factor. The lesson presents real-world problem situations for students to solve.
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Common Factors And Greatest Common Factors
In this common factors and greatest common factors worksheet, students, with a partner, problem solve the factors to twenty word problems and mathematical equations.
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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.