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Parallel and Perpendicular Lines
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Enduring Understanding:
- To describe and understand real-life objects that are composed
of parallel and perpendicular lines
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Essential Questions:
- How do equations of lines reflect the appearance of their graphs?
- What happens when two lines are intersected by a third line (transversal)?
- What is slope?
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Target Goals:
- To be able to identify relationships between lines by analyzing
graphs and equations
- To be able to identify angles formed by two lines and a transversal
- To be able to use properties of parallel lines to prove angles
congruent or lines parallel
- To be able to write equations of lines given various information
- To be able to find slope and also use slope to identify parallel
and perpendicular lines
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Assessments:
- Quiz/Test
- White board/chalkboard problems in class
- Verbal response
- Daily homework
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Activities:
- Find parallel and perpendicular lines in various real-world settings
- Identify angle relationships
- Identify slopes graphically and algebraically
- Think-pair-share
- Writing proofs in small group and whole group settings
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State Goals:
- 8.C.4a - Analyze
and report the effects of changing coefficients, exponents and
other parameters on
functions and their graphs
- 9.B.4 - Recognize
and apply relationships within and among geometric figures
- 9.C.4c - Develop
and communicate mathematical proofs
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