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This Comparing Equation of Parallel and Perpendicular Lines: Parallel and Perpendicular Lines interactive also includes:
It seems perpendicular lines have slopes which follow a specific rule. Scholars use an interactive to investigate this rule by moving a pair of lines on a coordinate plane. They find that perpendicular lines have slopes that are opposite reciprocals.
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CCSS:
Designed
Concepts
Additional Tags
Instructional Ideas
- Use the review questions for homework
Classroom Considerations
- Requires free CK-12 account set up
- Learners should understand the meaning of opposite reciprocal
Pros
- Provides hints for challenge questions
- Includes video tutorial explaining topic
Cons
- Relationship between slopes in interactive is difficult to determine because it gives them as decimals