Purple Math
Purplemath: Symmetry About an Axis
Explains symmetry about a line, using animations to illustrate the "rotation" or "reflection" involved in this type of symmetry.
Purple Math
Purplemath: Systems of Linear Equations: Definitions
Covers the basic definitions involved in systems of linear equations.
Physics Classroom
The Physics Classroom: Momentum and Its Conservation: Algebraic Problem Solving
In this physics tutorial, the law of momentum conservation will be combined with the use of a momentum table and some algebra skills to solve problems involving collisions occurring in isolated systems.
Purple Math
Purplemath: Basic "Percent Of" Word Problems
Demonstrates how to set up and solve 'percent of' word problems such as 'What percent of 16 is 5?'.
Purple Math
Purplemath: "Coin" Word Problems
This site demonstrates how to solve 'coin' word problems, given relationships between the types of coins.
Purple Math
Purplemath: Conics: Ellipses: Introduction
Introduces the basic terms, variables, and equations for ellipses, and discusses their physical properties.
Purple Math
Purplemath: Adding and Subtracting Matrices
Demonstrates how to add and subtract matrices, explains why the addition or subtraction sometimes can't be done, and gives an example of how matrix addition is used in homework problems.
Purple Math
Purplemath: "The Bible Says Pi = 3"
Shows how a simple reading from the Bible proves that the Judeo-Christian value of 'pi' is about 3.14 and not 3.
Purple Math
Purplemath: "Number" Word Problems
Demonstrates, step-by-step and with illustrations, how to set up and solve 'number' problems.
Purple Math
Purplemath: "Work" Word Problems
Explains the "trick" to "work" word problems (such as two people painting a room, or two pipes filling a tank), and demonstrates how to set up and solve these exercises.
Purple Math
Purplemath: "Investment" Word Problems
Demonstrates in a systematic way how to set up and solve 'investment' word problems.
BBC
Bbc: Solving Equations and Inequalities
This is where you can pick up some valuable pointers on how to solve equations and inequalities. When you finish working your way through the pages you can take an on-line "Test Bite," and check your understanding.
Math Planet
Math Planet: Systems of Linear Inequalities
A system of linear inequalities in two variables consists of at least two linear inequalities in the same variables. The solution of a linear inequality is the ordered pair that is a solution to all inequalities in the system and the...
Thomas Jefferson National Accelerator Facility
Jefferson Lab: Speed Math Inequalities
Students are given two equations and will use inequality symbols to compare them.
University of Cambridge
University of Cambridge: Maths and Sports: The Olympic Torch Tour
Can you find the best route for the Olympic Torch relay to take? This more challenging activity is designed to be accessible to GCSE maths students (grades 8, 9, and 10).
CK-12 Foundation
Ck 12: Algebra: Absolute Value Inequalities
[Free Registration/Login may be required to access all resource tools.] In this lesson students solve problems involving absolute values and inequalities. Students can watch a video tutorial, explore guided notes and attempt practice...
CK-12 Foundation
Ck 12: Algebra: Multiplication and Division Phrases as Expressions
[Free Registration/Login may be required to access all resource tools.] In this lesson students write multiplication and division phrases as single variable expressions. Students examine guided notes, review guided practice, watch...
CK-12 Foundation
Ck 12: Algebra: Graphs of Linear Systems
[Free Registration/Login may be required to access all resource tools.] Students learn to solve linear systems by graphing. Students examine guided notes, review guided practice, watch instructional videos and attempt practice problems.
CK-12 Foundation
Ck 12: Algebra: Graphs of Linear Systems
[Free Registration/Login may be required to access all resource tools.] Students learn to solve linear systems by graphing. Students examine guided notes, review guided practice, watch instructional videos and attempt practice problems.
CK-12 Foundation
Ck 12: Algebra: Multiplication of Polynomials by Binomials
[Free Registration/Login may be required to access all resource tools.] In this lesson students learn how to distribute a binomial to a polynomial. Students examine guided notes, review guided practice, watch instructional videos and...
Math Planet
Math Planet: Use Graphing to Solve Quadratic Equations
A quadratic equation is an equation that can be written on the standard form ax^2 + bx + c = 0, where a is not = 0. One way of solving a quadratic equation is by factoring. Another way of solving a quadratic equation is to solve it...
Purple Math
Purplemath: Metric Units & Converting Between Them
This resource demonstrates how to convert between various sizes of metric units quickly and easily. Metric units are very nice to work with, since they are all multiples of ten (or a hundred, or one-tenth, etc) of each other. You can...
University of St. Andrews (UK)
University of St. Andrews: Biography of Thomas Muir
The School of Mathematics and Statistics of St. Andrew's University provides biographical information on the mathematical career of Thomas Muir. Included are links to other famous individuals with whom he worked and links to his topics...