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Lesson Plan
Curated OER

Factors and Multiples

For Teachers 6th
Sixth graders need to see the relevance in the mathematics they learn. This instructional activity builds on the concepts of least common multiple and greatest common factor. The instructional activity presents real-world problem...
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Lesson Plan
Pennsylvania Department of Education

Analyzing Numeric and Geometric Patterns of Paper Pool

For Teachers 5th - 8th
Students use concrete and pictorial representation of geometric patterns to extend patterns. In this geometric patterns lesson plan, students identify patterns and extend them.
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Unit Plan
Khan Academy

Khan Academy: Identify Prime Numbers

For Students 3rd - 5th Standards
Identify prime numbers less than 100. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
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Handout
Varsity Tutors

Varsity Tutors: Hotmath: Algebra Review: The Prime Page

For Students 9th - 10th Standards
Find a quick, concise but complete explanation of prime numbers. A variety of related topics are covered such as: A table of the first 400 Prime Numbers, Do Primes ever stop?, the Prime Number Theorem and Twin Primes.
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eBook
Math Planet

Math Planet: Factorization and Prime Numbers

For Students 6th - 8th
Gain an understanding of how to factor prime numbers by viewing examples and a video lesson.
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Graphic
Cool Math

Coolmath: Pre Algebra Prime and Composite Numbers

For Students 9th - 10th
Students can learn the definitions of "prime numbers" and "composite numbers" with this resource. Several pages are provided that show students how to break down composite numbers until only prime numbers are left.
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Unit Plan
Khan Academy

Khan Academy: Prime and Composite Numbers Intro

For Students 4th Standards
Discusses factors, prime and composite numbers, and why the number 1 is not prime or composite. Includes practice problems throughout, along with explanations of solutions.
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Handout
Varsity Tutors

Varsity Tutors: Hotmath: Algebra Review: Composite Numbers

For Students 3rd - 8th Standards
Find a quick, concise explanation of Composite Numbers. Several examples are given and clearly explained. Prime numbers are also described.
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Activity
Varsity Tutors

Varsity Tutors: Hotmath: Algebra Review: Relatively Prime Numbers and Polynomials

For Students 9th - 10th Standards
Find a quick, concise explanation of relatively prime numbers and how this concept applies to polynomials. Examples are given and clearly explained.
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eBook
Mathigon

Mathigon: Algebra: Special Sequences

For Students 9th - 10th Standards
In addition to arithmetic and geometric sequences, Fibonacci Numbers, and figurate numbers, there are countless interesting sequences that don't follow a similar, regular pattern. These include prime numbers, perfect numbers, the...
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Activity
Wyzant

Wyzant: Prime Number List

For Students 9th - 10th Standards
WyzAnt provides a list of the prime numbers. The user decides how many primes to see and in what fashion--horizontally or vertically and in how many rows.
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Unit Plan
Khan Academy

Khan Academy: Identify Composite Numbers

For Students 3rd - 5th Standards
Identify composite numbers less than 100. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
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Unknown Type
Khan Academy

Khan Academy: Prime Factorization

For Students 5th - 6th
A practice quiz on the prime factorization of numbers. Includes hints.
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Activity
Ministry of Education and Universities of the Region of Murcia (Spain)

Ministerio De Educacion Y Ciencia: Numeros Primos

For Students 9th - 10th
This interactive unit explain what prime numbers are and how to find them. It also discuss the Sieve of Eratosthenes and the Mersenne number.
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Activity
Wyzant

Wyzant: Prime Factors Calculator

For Students 3rd - 8th Standards
Students input a number to be factored and the WyzAnt calculator does the rest. Limitations include the fact that numbers which are negative or which contain primes bigger than 541 cannot be handled.
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Activity
Other

Dan's Math: Basic Skills Topics

For Students 9th - 10th Standards
College professor Dan Bach offers a review of various basic topics in arithmetic, pre-algebra, and algebra. Order of operations, exponents, square roots, variables, and combining terms are just a few of the many topics covered.
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Unit Plan
Cool Math

Coolmath: Pre Algebra: Prime Factorizations

For Students 4th - 6th Standards
In this tutorial, students learn how to do prime factorization by a few different methods, including factor trees and factor stacks. The exercises work their way up from 2-digit numbers up to 5 digits. Includes practice problems.
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Graphic
Cool Math

Coolmath: Pre Algebra Factorizations

For Students 9th - 10th
Learn about "factorization" from Cool Math. Several examples and practice problems are provided.
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Handout
Paul Dawkins

Paul's Online Notes: Algebra: Preliminaries: Factoring Polynomials

For Students 9th - 10th
Detailed math tutorial features notes and examples that illustrate how to factor polynomials. It discusses factoring out the greatest common factor, factoring by grouping, factoring quadratics, and factoring polynomials with degree...
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Handout
Varsity Tutors

Varsity Tutors: Hotmath: Algebra Review: Prime Factorization

For Students 9th - 10th Standards
Find a quick, concise explanation of how to find the unique prime factorization of a number. An example is given and clearly explained.
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Website
Shmoop University

Shmoop: Basic Operations: Prime Factorization

For Students 3rd - 8th Standards
Students learn about prime factorization. The resource consists of notes, step-by-step examples, and practice problems with solutions.
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Handout
Other

The Prime Glossary: Rational Numbers

For Students 9th - 10th Standards
This site gives a definition of what a rational number is. Gives examples and formulas. Very helpful.
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eBook
Math Planet

Math Planet: Monomials and Adding or Subtracting Polynomials

For Students 6th - 8th
Gain an understanding of how to add or subtract polynomials by viewing an example and a video lesson.
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Unit Plan
Help Algebra

Help algebra.com: Fractions

For Students 9th - 10th
This resource offers an overview of fractions from several aspects, including simplifying, reduced, mixed numbers and improper form, and basic operations. Examples and diagrams are included to help demonstrate each topic.