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Graphic
Curated OER

University of St. Andrews: Marin Mersenne

For Students 9th - 10th
Even though his equation to determine all prime numbers did not succeed, it did help the investigation of large prime numbers.
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Article
Cuemath

Cuemath: Factors

For Students 5th - 8th
A factor of a number in math is a number that divides the given number. Factors are used in many situations in daily life. This article explains factors and how to find factors using multiplication and division. Included are solved...
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Article
Cuemath

Cuemath: Least Common Multiple

For Students 5th - 8th Standards
Learn about the properties of Least Common Multiples (LCM) and the three methods to find the LCM. Included are solved examples and interactive problems for review.
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Lesson Plan
Google

Google for Education: Measuring Complexity of Function or Algorithm

For Teachers 9th - 10th Standards
In this activity, students learn how to measure the complexity of the function or algorithm in a math problem and understand how this applies to real world situations.
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Interactive
CK-12 Foundation

Ck 12: Math Grade 3

For Students 3rd
Browse resources related to third-grade math standards. Click on a topic for interactive lessons, videos, and extra practice.
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Unit Plan
Cuemath

Cuemath: Square Root of 98

For Students 9th - 10th
In this mini-lesson, learn how to find the square root of 98 using various methods.
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Unit Plan
PBS

Pbs: Greatest Common Factor

For Students 6th - 8th Standards
In this video, learn how to find the greatest common factor of two numbers. Then, see how this can be used to solve problems with large numbers. In the accompanying classroom activity, students learn to find prime factors using factor...
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Handout
Other

Appalachian State University: Sets and Bags

For Students 9th - 10th
This page provides extensive information about sets and bags. Includes descriptive set notation and examples.
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Interactive
AAA Math

Aaa Math: Least Common Multiple

For Students 3rd - 8th Standards
This tutorial offers an explanation of least common multiples, practice finding them and a game to play. There is a lot of information available at this location.
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Activity
Wolfram Research

Wolfram Math World: Pascal's Triangle

For Students 9th - 10th
This site from MathWorld provides great information on Pascal's Triangle. Links are provided throughout for additional information, along with several helpful charts and formulas. This is a good site to check out on the subject.
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Interactive
Other

Greatest Common Factor Calculator

For Students 9th - 10th Standards
Free online calculator provides help with finding the greatest common factor.
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Unknown Type
Math Aids

Math Aids: Fractions Worksheets

For Teachers K - 1st Standards
Great resource for learning and practicing fractions and their different operations. Math worksheets are printable, may be customized, and include answer keys.
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Handout
Quia

Ixl Learning: Least Common Multiple

For Students 5th - 6th Standards
Brush up on your math skills relating to the least common multiple then try some practice problems to test your understanding.
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Interactive
Calculator Soup

Calculator Soup: Factoring Calculator

For Students 9th - 10th
The factoring calculator finds the factors and factor pairs of a positive or negative number. Enter an integer number to find its factors.
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Whiteboard
ClassFlow

Class Flow: Greatest Common Factor

For Teachers 6th - 8th Standards
[Free Registration/Login Required] This flipchart assists in the instruction of finding the Greatest Common Factor. Two methods for identifying GCF are used.
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Interactive
Calculator Soup

Calculator Soup: Lcm Calculator Least Common Multiple

For Students 9th - 10th
The Least Common Multiple (LCM) is also referred to as the Lowest Common Multiple (LCM) and Least Common Divisor (LCD). For two integers a and b, denoted LCM(a,b), the LCM is the smallest positive integer that is evenly divisible by both...
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Unknown Type
Math Aids

Math Aids: Factors Worksheets

For Students K - 1st
Great resource for learning and practicing fractions and their different operations. Math worksheets are printable, may be customized, and include answer keys.

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