Unit Plan
Sophia Learning

Sophia: Simplifying Radical Expressions: Lesson 5

For Students 9th - 10th Standards
This lesson will provide examples simplifying radical expression by applying the properties of square roots and prime factorization. It is 5 of 8 in the series titled "Simplifying Radical Expressions."
Activity
Varsity Tutors

Varsity Tutors: Hotmath: Graphing Calculator Practice Problems Number Theory

For Students 9th - 10th Standards
Practice using your graphing calculator for number theory problems, including prime factorization, greatest common factor, least common multiple, and scientific notation. If you get stumped or if you would like to check your work, then...
Lesson Plan
Alabama Learning Exchange

Alex: My Favorite Number

For Teachers 4th - 7th
The activity allows students to review many of the number theory concepts. Students will pick a composite number write verbal expressions about the number, find the factors, prime factorization, list multiples, draw a cartoon character...
Unit Plan
Texas A&M University

Wtamu Virtual Math Lab: College Algebra: Factoring Polynomials

For Students 9th - 10th
This page includes a tutorial which teaches you how to find the Greatest Common Factor (GCF) of a polynomial, factor out the GCF of a polynomial, factor a polynomial with four terms by grouping, factor trinomials, and factor a difference...
Unit Plan
Other

University of Surrey: The First 500 Fibonacci Numbers

For Students 9th - 10th
A list of the first 500 Fibonacci numbers, including their prime factorization and whether they are prime.
Whiteboard
SMART Technologies

Smart: Factors and Multiples

For Teachers 3rd - 6th Standards
Students are introduced to prime numbers, composite numbers, prime factorization, greatest common factor, and least common multiple in this SMART whiteboard activity.
Activity
Shodor Education Foundation

Shodor Interactivate: Factorize

For Students 3rd - 8th Standards
This Shodor site gives a brief explanation of factorization, and it allows you "to find all of the factorizations of a given number and then draw the product as the area of a rectangle on a grid."
Interactive
Calculator Soup

Calculator Soup: Greatest Common Factor Gcf Calculator

For Students 6th - 8th Standards
Calculate GCF, GCD, and HCF of a set of two or more numbers and see the work using factorization. An interactive calculator, explanations, and examples are included.
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.
Activity
Varsity Tutors

Varsity Tutors: Hotmath: Practice Problems: Greatest Common Factor 2

For Students 9th - 10th Standards
Twenty-four problems present a variety of problems working with finding the greatest common factor and finding prime factorizations. They are given with each step to the solution cleverly revealed one at a time. You can work each step of...
Activity
Varsity Tutors

Varsity Tutors: Hotmath: Practice Problems: Monomial Factors of Polynomials

For Students 9th - 10th
Thirty problems on factoring polynomials. To review the basics on this topic, click the "View Lesson" button at the top.
Graphic
Cool Math

Coolmath: Pre Algebra Factorizations

For Students 9th - 10th
Learn about "factorization" from Cool Math. Several examples and practice problems are provided.
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.
Activity
Wolfram Research

Wolfram Mathworld: Polynomial Factorization

For Students 9th - 10th Standards
This site discusses factoring of polynomials, giving a general definition, and many links to satisfy unfamiliar terminology. There are however very few examples.
Activity
University of Cambridge

University of Cambridge: Nrich: Funny Factorisation

For Students 6th - 9th
Learning exercise deals with factors and factorization.
Activity
Discovery Education

Discovery Education: Web Math: Factor an Integer

For Students 3rd - 8th Standards
WebMath gives a calculator to give all the factors of a number. Drop down menu can select just prime factors of number entered. Also discusses the definition of a factor.
Activity
Purple Math

Purplemath: Lcm & Gcf

For Students 9th - 10th Standards
Purplemath shows an easy and orderly way to determine the GCF and LCM of any two numbers. Even large numbers won't be a challenge with this method.
Activity
Other

Help With Fractions: The Greatest Common Factor

For Students 3rd - 8th Standards
Two different methods of finding the greatest common factor are explained at this one page website. It is very easy to follow the step by step directions.
Handout
Cuemath

Cuemath: Highest Common Factor

For Students 9th - 10th Standards
Explore the world of Highest Common Factor or Greatest Common Factor (GCF) by going through its various aspects and properties. Find answers to questions like what is the highest common factor for a group of numbers, easy ways to...
Unit Plan
Texas Education Agency

Texas Gateway: Applying the Order of Operations

For Students 6th - 7th Standards
Given a numerical expression including whole number exponents and prime factorization, students will use the order of operations to generate an equivalent expression.
Lesson Plan
Google

Google for Education: Measuring Complexity of Function or Algorithm

For Teachers 9th - 10th Standards
In this lesson, 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.
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.
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.
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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