5.3 Parallel and Perpendicular Lines
Lines and Angles
I.SectionObjectives
- Identify parallel lines, skew lines, and perpendicular lines
- Know the statement of and use the Parallel Line Postulate.
- Know the statement of and use the Perpendicular Line Postulate.
- Identify angles made by transversals.
II.ProblemSolvingActivity-SchoolMap
- Students are going to use parallel lines, perpendicular lines and skew lines to create a map of the school.
- You can begin this lesson by using a fire exit map of the school to assist students in getting started.
- The students are going to work in groups of three to create a map of the school.
- Students will need chart paper, rulers, yard sticks, colored pencils.
- Take students on a walk around the school to begin taking notes for their design.
- Note: If your school is very large, you can either challenge students with the whole school or select a floor to
design. This could create a complete school map in the end with groups putting their “floors” together. - Have students draw and design their map.
- When finished with the map, students must identify two sets of parallel lines and two sets of perpendicular
lines. - Extension- you can extend this activity even further by asking the students to identify an example of the
Parallel Line Postulate and an example of the Perpendicular Line Postulate on their map. - Allow time at the end for the students to share their work.
- Create a class display of student maps.
III.MeetingObjectives
- Students will identify parallel lines.
- Students will identify skew lines.
- Students will identify perpendicular lines.
IV.NotesonAssessment
- Use each map to assess student work.
- Do the students have a good understanding of parallel lines?
- Of perpendicular lines?
- Of skew lines?
- Are students able to identify an example of each postulate?
Parallel Lines and Transversals
I.SectionObjectives
Chapter 5. Geometry TE - Problem Solving