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Welcome to the Math Portal!!!

Algebra

Henrico County Alg 1 Course Online
Defininely worth looking at!!!!

http://teachers.henrico.k12.va.us/math/HCPSAlgebra1/module1-2.html
Henrico County Alg 2 Online
This is Alg 2, but Alg I students can still learn some from this

http://teachers.henrico.k12.va.us/math/HCPSAlgebra2/modules.html

Factoring Polynomials

Factoring Numbers
The basics of factoring integers

http://www.purplemath.com/modules/factnumb.htm
Factoring Calculator
An online "calculator" for factorig, a bit clunky though

http://www.algebrahelp.com/calculators/expression/factoring/
Factoring Polynomials
Polynomials are further down the page

http://library.thinkquest.org/20991/alg2/polyf.html
More on Factoring
Explains basic factoring first, then polynomials

http://www.helpalgebra.com/onlinebook/factoringpolynomials.htm
Textbook Online Quizzes
Polynomials and factoring are in Ch 9

http://www.phschool.com/webcodes10/index.cfm?fuseaction=home.gotoWebCode&wcprefix=atk&wcsuffix=0099
Glencoe Online (Another textbook publisher)
Ch 9 is polynomials - see the Self-check quizzes and "Extra Examples"

http://www.glencoe.com/sec/math/algebra/algebra1/algebra1_05/index.php4/va

Polynomials

Definitions of Polynomials
Purplemath.com site for introduction of polynomials

http://www.purplemath.com/modules/polydefs.htm
Practice Test on Polynomials
An online practice test on polynomials

http://www.mccc.edu/~kelld/polynomials/polynomials.htm
Adding and Subtracting Simple Polynomials
About.com site about adding and subtracting polynomials

http://math.about.com/library/blpoly.htm
Adding and Subtracting Polynomials Online
You can import your equations here and they will be solved online - use this to CHECK your work!!!

http://www.webmath.com/polyaddsub.html
Multiplying Polynomials
A Purplemath.com site on multiplying polynomials

http://www.purplemath.com/modules/polymult.htm
Multiplying Monomials
Shows you how to multiply them and gives you a chance to practice

http://www.studyzone.org/mtestprep/math8/g/8multmonol.cfm
Dividing Monomials
An about.com site for dividing monomials

http://math.about.com/od/polynomials/ss/divmon_2.htm
Dividing Polynomials
A purplemath.com site for dividing polynomials

http://www.purplemath.com/modules/polydiv.htm

Problem-Solving

Thoughts on problem-solving
Explains different types of problem-solving with some real-life examples

http://www.engin.umich.edu/~problemsolving/
Brain-teasers
What better way to learn problem-solving than to do it with brain-teasers

http://www.pedagonet.com/brain/brainers.html
More problems to solve
This shows how the brain can be tricked

http://www.depts.ttu.edu/hs/rhim5200/htm_files/0024.htm

Algebra Basics

Algebraic Expressions and Properties

Basic algebraic expressions
Mathpage.com that gives explanations and some practice on algebraic expressions

http://www.themathpage.com/alg/algebraic-expressions.htm
http://www.math.com/school/subject2/lessons/S2U1L1GL.html
A math.com site that reviews expressions and other important vocabulary - highly recommended

http://www.math.com/school/subject2/lessons/S2U1L1GL.html
Balancing expressions and terms
An interactive site that allows you to literally balance terms

http://illuminations.nctm.org/ActivityDetail.aspx?id=10
Other properties - transitive, etc.
Goes into a brief explanation of transitive, reflexive and symmetric properties

http://www.mathwords.com/t/transitive_property.htm
Algebraic Expressions Defined
A great site for Algebra students - explains algebraic expressions

http://www.algebra-online.com/variables-expressions-1.htm

Integers and Order of Operations

Game on integer operations
This is a Quia game where students have to get the answer right to advance

http://www.quia.com/rr/41496.html
Integers and Order of Operations
Find the mystery picture by solving the order of operations correctly

http://www.dositey.com/addsub/Mystery11.htm
Mathgoodies.com Interactive Practice Site
Read about the order of operations and then get the practice on this site

http://www.mathgoodies.com/lessons/vol7/order_operations.html
Math.com reference Site
A Math.com site where the information is explained in steps - worth looking at

http://www.math.com/school/subject2/lessons/S2U1L2GL.html

Matrices, Box and Whisker, Other Data Analysis

Box and Whisker Plots
An online school with resources and notes on box and whisker plots

http://www.worsleyschool.net/science/files/box/plot.html
More on box and whisker plots
A Purplemath.com site that explains box and whisker plots

http://www.purplemath.com/modules/boxwhisk.htm
An interactive site to create box and whisker plots
An interactive site that uses Java to create and examine box and whisker plots

http://nlvm.usu.edu/en/nav/frames_asid_200_g_3_t_5.html
Create your own box and whisker plot
The NCTM site for creating box and whisker plots - interactive and fun

http://illuminations.nctm.org/activitydetail.aspx?ID=160
Mean, Median, Mode, and Range
A Quia game for practice

http://www.quia.com/rr/51667.html
Lesson on mean, median, mode, and range
A Purplemath.com site that explains it very well

http://www.purplemath.com/modules/meanmode.htm
Adding and subtracting matrices
A cursory explanation of adding and subtracting matrices

http://www.ucl.ac.uk/Mathematics/geomath/level2/mat/mat4.html
Scalar multiplication
Purplemath.com shows how to multiply a matrix by a scalar

http://www.purplemath.com/modules/mtrxmult.htm
Creating Stem and Leaf Plots
A Purplemath.com site on creating stem and leaf plots - definitely worth a look!

http://www.purplemath.com/modules/stemleaf.htm
Creating graphs with Excel
Knowing how to create graphs with Excel is definitely useful

http://pubs.logicalexpressions.com/pub0009/LPMArticle.asp?ID=190
Another site on creating charts
Excellent and easy to use site (developed for

http://nces.ed.gov/nceskids/CreateAGraph/default.aspx
Creating circle graphs (pie charts)
An interactive site where you can manipulate the data

http://www.shodor.org/interactivate/activities/CircleGraph/

Mean, Median, Mode, and Range

Another lesson (from a university)
Examples and definitions are given as well as some notes

http://www.cimt.plymouth.ac.uk/projects/mepres/book8/bk8i5/bk8_5i2.htm
College Tutorial on the topic
The background makes it hard to read, but the material is still useful

http://www.dean.tec.ma.us/MCAS/mcasmean.htm
Shodor Interactive on mean, median, mode, and range
An interactive site where you can practice online calcuating mean, median, mode, and range

http://www.shodor.org/interactivate/activities/PlopIt/?version=1.6.0_06&browser=Mozilla&vendor=Sun_Microsystems_Inc.

Properties

Properties
Describes and explains the different properties

http://mathforum.org/dr.math/faq/faq.property.glossary.html
Some postulates
Can be a little bit more advanced, but some of this relates to Alg

http://library.thinkquest.org/2647/algebra/post.htm
Lesson from McDougall Littell
An online textbook resource about properties of real numbers

http://www.classzone.com/books/algebra_1/page_build.cfm?&ch=2
Distributive Property
A description and explanation

http://www.purplemath.com/modules/simparen.htm

Equations and Inequalities

Two-Step/Multi-Step Equations/Inequalities

Inequalities
Interactive practice on inequalities

http://www.aaamath.com/g725-inequalities.html
More on solving multi-step equations
Comes from a textbook publishers, Glencoe. This is a PDF file from the textbook

http://www.glencoe.com/sec/math/algebra/algebra1/algebra1_05/study_guide/pdfs/alg1_pssg_G022.pdf
Online practice with multi-step equations
Problems, space provided, and feedback given on multi-step equations

http://www.algebrahelp.com/worksheets/view/simplifying/combiningliketerms.quiz
Solving inequalities
Shows an equations, steps, and answers

http://www.veazeys.com/math/lesson1-3.htm
Solving multi-step equations
Explains and demonstrates how to solve multi-step equations

http://www.algebralab.org/lessons/lesson.aspx?file=algebra_onevariablemultistep.xml
Two-step problem solving
Interactive practice on two-step equations

http://www.harcourtschool.com/elab/act_7_8.html
Wonderful site!!! From the textbook publisher!!!
Must look at this! HIGHLY recommend

http://www.phschool.com/iText/math/sample_chapter/Ch02/02-03/PH_Alg1_ch02-03_Obj1.html

Linear Equations

Proportions and Ratios

Ratios
A webmath.com site on ratios, interactive

http://www.webmath.com/k8ratio.html
More on ratios
Purplemath.com site for ratios and proportions

http://www.purplemath.com/modules/ratio.htm

General Academics