Help Algebra
Help algebra.com: Addition Principle
Beginning with a discussion of equivalent equation, this site describes the Addition Principle and how it is used to help solve algebraic equations.
Other
Traduciendo Expresiones Algebraicas
In Spanish. An overview of translating sentences into algebraic expressions. Begins with the basics of words relating to operations, and expressions with one variable. Many example problems available for students.
Math Medics
S.o.s. Math: The Complex Numbers
This lesson may be useful to both persons with prior knowledge of complex numbers and those without. The lesson begins with the definition of complex numbers and its notation, then gives the rules of arithmetic for them with exercises....
Interactive Mathematics
Interactive Mathematics: Introduction to Functions
Everything you need to know to begin working with functions is presented in this lesson. Learn the definition, notation, and use of functions then practice evaluating with the examples provided.
ClassFlow
Class Flow: Proportions
[Free Registration/Login Required] This lesson contains notes and examples for instructing how to solve proportions. Begins with relations to equivalent fractions, and then gets into solving algebraically using cross products. It...
Interactive Mathematics
Interactive Mathematics: Matrices
This over view of matrices begins with an application to electronics using circuit equations. Examples are provided to demonstrate types of matrices, the identity matrix, addition and scalar multiplication of matrices.
Khan Academy
Khan Academy: Data Set Warm Up
Begin your journey into the world of statistics with some warm-up questions about data sets. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Cut the Knot
Cut the Knot!: Polygons: Formality and Intuition
This is a very interesting site about polygons. The site begins by distinguishing between shapes whose sides intersect and polygons whose sides do not overlap. After this short introduction, you will find information regarding area and...
Oswego City School District
Regents Exam Prep Center: Review Factoring Polynomials
A wealth of material to supplement classroom instruction on factoring of polynomials. Lessons offer methods and guidelines for factoring as well as examples; practice exercises allow students to begin testing their factoring skills; and...
Wyzant
Wyzant: Exponents
Review the concept of exponents and what it means to take a number "to a power." This is a good resource for a beginning unit on exponents. An online practice worksheet is available.
Wyzant
Wyzant: Exponents
The lesson from WyzAnt begins with a review of the definition of exponents then proceeds to several examples which show the definition in action. Special cases such as those involving negative bases as well as the zero exponent and the...
Texas Instruments
Texas Instruments: Introduction to Slope and Intercepts Partner Activity
This partner activity is designed to have pre-Algebra students or Algebra 1 students compare and contrast different screen shots and begin to develop concepts needed to describe slope and intercepts.
Mathematics Archives
Math Archives: Visual Calculus: Even and Odd Functions
A detailed definition of even and odd functions begins an in-depth look at how these functions are composed and evaluated in the study of math. It goes from from basic algebra through calculus. Interactive LiveMath Notebooks are provided...
PBS
Pbs: Equivalent Expressions With the Distributive Property
This animated Math Shorts video explains how the distributive property can help students model and create equivalent expressions. In the accompanying classroom activity, students play a quick game where they identify common factors...
Hofstra University
Hofstra University: An Introduction to the Derivative
This lesson from the Hofstra University discusses the derivative. The lesson begins with the average rate of change of a function and discusses how this is related to the derivative of a function at a point. The site gives visual aids...
National Council of Teachers of Mathematics
The Math Forum: Problems Library Geometry Triangles
This site contains a wealth of problems that deal with the basic definitions of medians, altitudes, angle bisectors, and perpendicular bisectors or the defining characteristics of the different types of triangles. There are also...
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