When Will We Ever Meet?

Investigate the slippery slope of parallel and perpendicular lines. The lesson explores the relationship between the slopes of parallel and perpendicular lines. Pupils use graphing calculators to graph lines with equal slopes and lines with opposite reciprocal slopes and then investigate the graphed lines.

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CCSS: Designed
Instructional Ideas

  • Make a connection between the slopes of parallel lines and no solution to the system of equations
Classroom Considerations

  • Individuals should know how to graph a linear equation on a graphing calculator
  • Assumes learners know how to find a reciprocal of a rational number
Pros

  • Contains a formative and summative assessment for the lesson
  • Provides suggestions to extend the lesson
Cons

  • None
Common Core