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This There is Only One Line Passing Through a Given Point with a Given Slope lesson plan also includes:
- There is Only One Line Passing Through a Given Point with a Given Slope - Teacher Version (doc)
- There is Only One Line Passing Through a Given Point with a Given Slope - Student Version (pdf)
- There is Only One Line Passing Through a Given Point with a Given Slope - Student Version (doc)
- Grade 8 Module 4: Teacher Materials
- Grade 8 Module 4: Student Materials
- Grade 8 Module 4: Copy Ready Materials
- Math Fluency Support for Grades 6-8
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Prove that an equation in slope-intercept form names only one line. At the beginning, the teacher leads the class through a proof that there is only one line passing through a given point with a given slope using contradiction. The 19th part of a 33-part unit shows pupils how to graph a line in slope-intercept form.
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CCSS:
Designed
Concepts
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Instructional Ideas
- Lead a discussion about the number of lines that can have the same slope and the number of lines that pass through a given point
Classroom Considerations
- Assumes learners can find the slope of a line
- Slope is calculated using the ratio of sides of similar triangles
- Lesson provides the final concept needed to show the graph of a linear equation is a line
Pros
- Includes alternative problems rather than use the proof
- The exit ticket requires pupils to analyze the work of fellow classmates
Cons
- None