The lesson teaches students about an important characteristic of lines: their slope. Slope can be determined either in graphical or algebraic form. Slope can also be described as positive, negative, zero, or undefined. Students get an explanation of when and how these different types of slope occur. Finally, students learn how slope relates to parallel and perpendicular lines. When two lines are parallel, they have the same slope and when they are perpendicular their slopes are negative reciprocals of one another. Prerequisite knowledge: Students must know how to graph points on the Cartesian plane. They must be familiar with the x- and y- axes on the plane in both the positive and negative directions.
Grade Level(s): 8, 9, 10, 11, 12
1 Hour(s) 30 Minute(s)
Keywords: slope, parallel lines, perpendicular lines, positive slope, negative slope, zero slope, undefined slope
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This resource is likely to support student engagement in the following the Mathematical Practices:
MAFS.K12.MP.1.1 - Make sense of problems and persevere in solving them.
MAFS.K12.MP.2.1 - Reason abstractly and quantitatively.
MAFS.K12.MP.4.1 - Model with mathematics.
MAFS.K12.MP.6.1 - Attend to precision.
Source and Access Information
Name of Author/Source: Teach Engineering
District/Organization of Contributor(s): Seminole
Access Privileges: Public
* Please note that examples of resources are not intended as complete curriculum.