Activity
Texas Instruments

Texas Instruments: Finding Slope Using Rise Over Run

For Teachers 9th - 10th
Students seem to have trouble finding the slope of a line using rise over run. This activity will allow the students to find slope of lines and tell the difference between lines of positive, negative, zero and undefined slope.
Activity
Purple Math

Purplemath: Slope of a Straight Line

For Students 9th - 10th Standards
This lesson on slope explains the slope concepts, demonstrates how to use the slope formula, shows how to find slope in horizontal and vertical lines, and how to use slope to find whether the lines through the pairs of points are...
Unit Plan
Sophia Learning

Sophia: Find Slope and Rate of Change

For Students 9th - 10th
This learning tutorial demonstrates how to find the slope of a line and the rate of change for a table. The lesson includes several PowerPoint presentations about slope and even provides practice problems for students to test their...
Unit Plan
Texas A&M University

Wtamu Virtual Math Lab: College Algebra: Slope of a Line

For Students 9th - 10th
Through this tutorial, you'll know what slope is and how to determine it. View examples of positive, negative, zero, and undefined slope, follow step-by-step slope calculations, and complete practice problems at the end.
Activity
Texas Instruments

Texas Instruments: Linear Functions: Slope With Grid

For Teachers 9th - 10th
Students learn to impose a grid on a line to quantify the steepness of a line. They learn that slope is the ratio of vertical change divided by the horizontal change. They also learn that lines can have slope that are positive, zero,...
Handout
Math Open Reference

Math Open Reference: Slope of a Line

For Students 9th - 10th Standards
Learn about the slope of a line with this helpful reference tool. Provides a detailed definition, examples, and an interactive activity that enhances further explanation. Includes links to related topics.
Unit Plan
Oswego City School District

Regents Exam Prep Center: Slopes and Equations of Lines

For Students 9th - 10th Standards
Explanation of linear equations and four types of slopes: positive, negative, zero, and undefined. Practice problems for the students are provided and a reinforcement activity using a graphing calculator is offered for the teacher's use.
Lesson Plan
TeachEngineering

Teach Engineering: Graphing Equations on the Cartesian Plane: Slope

For Teachers 7th - 9th Standards
The activity teaches young scholars about an important characteristic of lines: their slopes. Slope can be determined either in graphical or algebraic form. Slope can also be described as positive, negative, zero or undefined. Students...
Unit Plan
National Council of Teachers of Mathematics

The Math Forum: Ask Dr. Math: Equation for Undefined Slope

For Students 9th - 10th Standards
This site gives the equation for a vertical line which passes through 8 on the x axis. The Dr. explains why the equation is what it is by giving a more general equation for a line than y = mx + b.
Whiteboard
ClassFlow

Class Flow: Slope

For Teachers 9th - 10th
[Free Registration/Login Required] Slope (positive, negative, no, and undefined) in the real world.
Unit Plan
National Council of Teachers of Mathematics

The Math Forum: Ask Dr. Math: When Is a Slope 0 or Undefined?

For Students 9th - 10th Standards
At this site Dr. Math gives a discussion on the slopes of lines. The Dr. gives an analogy between the slope of a line and walking up and down hills. The Dr. explores the concept of undefined and zero slopes through his response to a...
eBook
Houghton Mifflin Harcourt

Holt, Rinehart and Winston: Homework Help Independent Practice: Coordinate Geometry

For Students 9th - 10th Standards
Get independent practice working with coordinate geometry. Each incorrect response gets a text box explanation and another try. Correct responses are confirmed.
Unit Plan
CK-12 Foundation

Ck 12: Algebra: Simplify Variable Expressions

For Students 7th
[Free Registration/Login may be required to access all resource tools.] Evaluate and simplify variable expressions involving integer division