Priority Standard: G-C0.9: Prove theorems about lines and angles. Theorems include: vertical angles are congruent; when a traversal crosses parallel lines, alternate interior angles are congruent and corresponding angles are congruent; points on a perpendicular bisector of a line segment are exactly those equidistant from the segments's endpoint.
Topics and "I can" Statements:
- I can identify corresponding, alternating interior, alternate exterior and consecutive interior angles using parallel lines and a transversal.
- I can apply the relationships between corresponding, alternating interior, alternate exterior and consecutive interior angles to find unknown angle measures.
- I can use angle relationships to prove that lines are parallel.
- I can prove lines perpendicular and parallel.
- I can find slopes given a graph or two ordered pair.
- I can identify parallel and perpendicular slopes.
- I can find equations of lines in slope-intercept form.
Unit 3: Parallel and Perpendicular Lines Resources
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Unit 3: Parallel and Perpendicular Lines Note Packet: Blank Copy
Unit 3- Section #1: Identify Pairs of Angles and Identify Pairs of Angles using Lines and Transversals (pg. 2-5)
Identify Pairs of Angles and Identify Pairs of Angles using Lines and Transversals Lesson: Guided Notes
Lesson Videos:
Vocabulary/Example #1 (pg. 12-13)
Vocabulary/Definitions/Theorems
Examples #2-#4
Example #5 and #6
Unit 3- Worksheet #1: Identify Pairs of Angles/Identify Pairs of Angles using Lines and Transversals
Unit 3- Worksheet #1: Answer Key
Unit 3- Section #3: Prove Lines are Parallel (pg. 6-8)
Prove Lines are Parallel Lesson: Guided Notes
Lesson Videos:
Vocabulary/Definitions/Theorems
Examples #1-4
Unit 3- Worksheet #2: Prove Lines are Parallel
Unit 3- Worksheet #2: Answer Key
Unit 3- Section #4: Prove Theorems about Perpendicular Lines (pg. 8-9)
Prove Theorems about Perpendicular Lines Lesson: Guided Notes
Lesson Videos:
Prove Theorems about Perpendicular Lines Lesson
Unit 3- Worksheet #3: Prove Theorems about Perpendicular Lines
Unit 3- Worksheet #3: Answer Key
Unit 3- Section #4: Find and Use Slopes of Lines (pg. 10-12)
Find and Use Slopes of Lines Lesson: Guided Notes
Lesson Videos:
Review
Unit 3- Worksheet #4: Find and Use Slopes of Lines
Unit 3- Worksheet #4: Answer Key
Unit 3- Section #5: Writing and Graphing Equations (pg. 13-16)
Writing and Graphing Equations Lesson: Guided Notes
Lesson Videos:
Review
Unit 3- Worksheet #5: Writing and Graphing Equations
Unit 3- Worksheet #5: Answer Key
Unit 3- Review Material
Unit 3- Parallel and Perpendicular Lines: Assessment Review
Unit 3- Parallel and Perpendicular Lines Assessment Review: Answer Key
Unit 2/3- Review Material
Unit 2/3: Assessment Review
Unit 2/3: Assessment Review Answer Key