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.
Handout
Purple Math

Purplemath: Graphing Overview: Straight Lines

For Students 9th - 10th Standards
This resource provides an overview of graphing for various types of functions, instruction on graphing straight lines and also, includes advice on common mistakes made by students.
Activity
Texas Instruments

Texas Instruments: Walk the Line: Straight Line Distance Graphs

For Teachers 9th - 10th
In this activity, students' use a motion detector to create straight-line, or constant-speed, distance versus time plots, and analyze the linear equation that describes the plots.
Activity
Lawrence Hall of Science

The Math Page: Skill in Algebra: The Equation and Graph of a Straight Line

For Students 9th - 10th Standards
Here is a site that clearly and thoroughly explains the equation of a line, including how to find points on a line, intercepts, and how to recognize the equation of a line. There are example problems solved, problems for the student to...
Graphic
Lawrence Hall of Science

The Math Page: Topics in Pre Calculus: The Equation of a Straight Line

For Students 9th - 10th Standards
Here is a site that clearly and thoroughly explains linear functions and the equation of a straight line. There are example problems solved, problems for the student to attempt, and answers to the student problems. Point this site out to...
Lesson Plan
Shodor Education Foundation

Shodor Interactivate: Lesson: Arithmetic Practice W/ Ordered Pairs

For Teachers 3rd - 8th Standards
The Shodor Education Foundation provides this lesson plan to have students practice simple computation that results in them graphing their answers. If they are accurate they will have a straight line. Students use an interactive...
Interactive
Mangahigh

Mangahigh: Algebra: Draw Straight Lines Using Alternative Linear Formats

For Students 9th - 10th
This interactive media source has two parts a learning mode and a practice game mode. The learning mode is where students are guided through understanding concepts of linear functions. Next, students play a game where they are asked...
Unit Plan
Other

Technical Tutoring: Linear Functions and Straight Lines

For Students 9th - 10th Standards
Learn how to write equations for linear functions in all three forms: point-slope, slope-intercept, and general. Also look at equations for parallel and perpendicular. The page gives an explanation of how to obtain the point slope form...
Activity
Texas Instruments

Texas Instruments: Tight Rope

For Teachers 9th - 10th
In this activity, students examine quantities that are linearly related and can be visually represented using a straight-line graph. Students collect distance versus time data using a motion detector and find a model for the...
Unit Plan
Mangahigh

Mangahigh: Algebra: Draw Straight Line Graphs Using Y = Mx + B

For Students 9th - 10th Standards
Students watch an online tutorial on the concept of graphing using slope intercept form. After watching, students test their knowledge by attempting ten practice problems that increase or decrease in difficulty based on their answers.
Handout
Duke University

Duke University: Intercept of a Straight Line

For Students 9th - 10th
A brief look at the y-intercept and how to write the y-intercept in point notation.
Handout
Purple Math

Purplemath: Using Slope and Y Intercept to Graph Lines

For Students 6th - 8th
Demonstrates, step-by-step and with illustrations, how to use slope and the y-intercept to graph straight lines.
Handout
Purple Math

Purplemath: Graphing Quadratic Functions: Introduction

For Students 9th - 10th Standards
The most basic quadratic is y = x2. The general technique for graphing quadratics is the same as for graphing linear equations. The quadratics graph as curvy lines (called "parabolas"), rather than the straight lines generated by linear...
Lesson Plan
TeachEngineering

Teach Engineering: Crash! Bang!

For Teachers 7th - 9th
Learners learn about the physical force of linear momentum - movement in a straight line - by investigating collisions. They learn an equation that engineers use to describe momentum. Students also investigate the psychological...
Activity
Wolfram Research

Wolfram Math World: Line

For Students 9th - 10th Standards
This MathWorld site gives Euclid's definition of a line, properties of lines, common terminology, and algebraic representations of lines and their distinctive parts in a cartesian system. The site then goes into detail of different line...