Start a 10-Day Free Trial to Unlock the Full Review

Why Lesson Planet?

Find quality lesson planning resources, fast!
Share & remix collections to collaborate.
Organize your curriculum with collections. Easy!
Have time to be more creative & energetic with your students!

Investigating Slopes

Students investigate slopes of parallel lines.  In this Algebra I/Geometry lesson, students verify the Slopes of Parallel Lines Postulate through the use of a graphing calculator.  Students construct parallel lines and examine their slopes and the product of the slopes to verify the postulate. 

3 Views 5 Downloads
Resource Details

9th - 10th
2 more...
Resource Type
Lesson Plans
Instructional Strategy
Inquiry-Based Learning
Included Materials
  • Project