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Graphic
National Council of Teachers of Mathematics

The Math Forum: Lines and Slope: Chameleon Graphing

For Students 6th - 8th Standards
Join Joan the chameleon in an exploration of lines and slope. You'll be drawing lines, calculating slope, using equations and more!
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Website
Cool Math

Coolmath: Perpendicular Lines

For Students 9th - 10th Standards
This CoolMath Resource will help students determine if lines are perpendicular by finding the slope, using the point-slope formula, and graphing.
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Handout
Interactive Mathematics

Interactive Mathematics: Graphs of Linear Functions

For Students 9th - 10th Standards
A brief overview of three methods used to graph lines is presented through examples. Slope-intercept, point-slope, and intercept form are demonstrated step-by-step along with a review of the formula for finding the slope of a line.
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Handout
CK-12 Foundation

Ck 12: Algebra: Determining the Equation of a Line

For Students 9th - 10th Standards
This comprehensive study guide highlights the main terms and formulas needed to determine the equation of a line. Examples are included.
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Whiteboard
ClassFlow

Class Flow: Definition of Slope

For Teachers 9th - 10th Standards
[Free Registration/Login Required] Presents the definition of slope and the formulas for y-intercept form.
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Handout
CK-12 Foundation

Ck 12: Algebra: Graphing Linear Equations

For Students 9th - 10th Standards
This comprehensive study guide highlights the main terms and formulas needed to review graphing linear equations. Examples are included.
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Unit Plan
Texas A&M University

Wtamu Virtual Math Lab: Intermediate Algebra

For Students 9th - 10th
This site is a tutorial for students in algebra 2 or for those who need a refresher. The site has explanations, definitions, examples, practice problems and practice tests are found covering topics such as linear equations, graphing,...
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Activity
Paul Dawkins

Paul's Online Notes: Algebra Cheat Sheet [Pdf]

For Students 6th - 8th
An algebra "cheat sheet" to use as a reference when completing algebra homework. Lists basic facts, properties, operations, formulas, and functions, as well as common errors.
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Whiteboard
ClassFlow

Class Flow: Straight Lines

For Teachers 9th - 10th Standards
[Free Registration/Login Required] Students explore straight lines, graphing lines and applying the formula for graphing linear equations.
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Website
Wolfram Research

Wolfram Math World: Algebra

For Students 9th - 10th Standards
MathWorld provides a basic overview of Algebra. Includes a few formulas and many links to related topics.
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Activity
Purple Math

Purplemath: Algebra Resources

For Students 9th - 10th
Purplemath contains about 40 different lessons on various algebra topics. The lessons are divided into five different sections: preliminary topics, beginning algebra, intermediate algebra, advanced algebra, and word problems. The lessons...
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Unknown Type
Khan Academy

Khan Academy: Algebra I: Linear Equations Word Problems

For Students 9th - 10th
Solve word problems about real world relationships that are given in formulas. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.