1. Lesson 3.1 Identify Pairs of Lines and Angles

2. Objective Identify angle pairs formed by three intersecting lines

3. Standard Prep for 7.0 - Students prove and use theorems involving the properties of parallel lines cut by a transversal, the properties of quadrilaterals, and circles

4. Academic Language Parallel lines Skew Lines Parallel planes Transversal Corresponding angles Alternate interior angles Alternate exterior angles Consecutive interior angles

5. Parallel Lines Two coplanar lines that don’t intersect

6. Skew Lines Two non-coplanar lines that don’t intersect

7. The Visual

8. Example

9. Refresh How many times do parallel lines intersect? How many times do perpendicular lines intersect? And what do they form?

10. Transversal A line that intersects two or more coplanar lines at different points l m transversal t

11. Angles formed by transversals

13. Example

14. Write it out What is an easy way to remember the different pairs of angles. Use appropriate academic language.

15. Homework p.150 #1, 2, 5, 6, 9, 16, 18, 24, 29, 48