Math Planet
Math Planet: Pre Algebra: Ratios and Percent: Rates and Ratios
Explains what rates and ratios are and how they are different. Shows how to solve an example problem about ratios and presents a video demonstrating how to show a ratio as a fraction or a decimal. [1:52]
ClassFlow
Class Flow: Math Order Operations
[Free Registration/Login Required] The teacher will use this flipchart to use concepts of algebraic thinking to solve problems.
CK-12 Foundation
Ck 12: 2.2 Dividing Rational Expressions
This section investigates the process for dividing rational expressions that are written as fractions. Additionally, it provides opportunities to explore different processes for simplifying rational expressions written as fractions prior...
Cool Math
Coolmath: Pre Calculus Freaky Factoring
This CoolMath resource provides a review of factoring polynomials and an introduction to factoring exponents that are fractions.
Varsity Tutors
Varsity Tutors: Hotmath: Algebra Review: Reducing Fractions (Simplest Form)
Find a quick, concise explanation of how to find the simplest or lowest form of a fraction. An example is given and clearly explained.
Wolfram Research
Wolfram Math World: Rational Number
This site gives an overview of rational numbers, gives interesting facts about the rational numbers including countability and probability of a rational numbers denominator being even. The site also contains related links.
Shodor Education Foundation
Shodor Interactivate: Coloring Remainders in Pascal's Triangle
In this activity the student will identify number patterns formed in Pascal's triangle when coloring remainders.
Math Is Fun
Math Is Fun: The Evolution of Numbers
Discusses what numbers are and how our understanding of them has evolved over thousands of years, from simple counting to negative numbers and irrational numbers, for example. Includes a set of practice questions where students identify...
Teachnology
Teachnology: Math Lesson Plans
Great lesson plans covering a wide-range of math-related subjects.
Math Medics
S.o.s. Math: Division by Zero in a Simple Fraction
This tutorial explains why division by zero is undefined. Gives examples and practice problems.
Math Playground
Math Playground: Problem Solving Videos
"Rated 'M' for middle school," Math TV invites you to tune in each week for videos of word problems being solved. Back episodes are available in subjects such as percentages, number sense, and fractions. Watch a problem worked out, then...
Alabama Learning Exchange
Alex: Cool Kool Aid Experiment
Seventh grade middle schoolers have had wide-ranging experiences with fractions and operations on fractions, but ratios and rates may be new concepts for them. This activity introduces students to the idea of rates via a familiar and...
Varsity Tutors
Varsity Tutors: Hotmath: Algebra Review: Multiplying Fractions by Integers
Find a quick, concise explanation of how to multiply a fraction times an integer. An example is given and clearly explained.
Varsity Tutors
Varsity Tutors: Hotmath: Algebra Review: Multiplying Fractions by Fractions
Find a quick, concise explanation of how to multiply a fraction by a fraction. An example is given and clearly explained.
Help Algebra
Help algebra.com: Rational Expressions
In addition to defining rational expressions, this resource demonstrates how to find the excluded values and zeros of the expressions.
Varsity Tutors
Varsity Tutors: Hotmath: Algebra Review: Terminating & Repeating Decimals
Find a quick, concise explanation of both terminating and repeating decimals. An example of each is given and clearly explained.
Wyzant
Wyzant: Simplifying Fractions With Negative Exponents
The tutorial illustrates how to simplify negative exponents. Students review the lesson and then check for understanding by completing the practice problems.
Math Planet
Math Planet: Pre Algebra: Finding the Greatest Common Factor
Gain an understanding of how to find the greatest common factor by viewing examples and a video lesson. [1:47]
CK-12 Foundation
Ck 12: Algebra: Inverse Property of Addition in Fraction Equations
[Free Registration/Login may be required to access all resource tools.] Identify and apply the inverse property of addition in fraction operations
Khan Academy
Khan Academy: Equations With Parentheses: Decimals & Fractions
Solve linear equations that contain expressions with parentheses and the coefficients are rational numbers. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Wyzant
Wyzant: Polynomial Exponents
This WyzAnt lesson displays examples for multiplication and division of polynomial exponents and polynomial exponents in fractions.
Wyzant
Wyzant: What Is Simplifying?
This site from WyzAnt explores what simplifying is, as well as how to simplify a variety of algebraic equations. Content focuses on simplifying multiple signs, combining like terms, simplifying multiplication, distributing a number or...
Interactive Mathematics
Interactive Mathematics: Common Factor & Difference of Squares
These easy to follow examples demonstrate how to factor algebraic expression using GCF and difference of squares.
Math Medics
S.o.s. Math: Different Fractional Faces of One
Explains how to change the number one to various different improper fractions. Gives examples and exercises to practice this skill.
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