Properties of Parallel Lines

Work within a parallel universe. Scholars learn about the relationships of angles when two parallel lines are intersected by a transversal. They see how to find the measurements of all eight angles by knowing the measure of one angle. Using algebraic skills, individuals calculate the measures of angles in figures.

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CCSS: Adaptable
Instructional Ideas
  • Create a postulate/theorem wall with the text of the postulates and theorems from the lesson; continue to add to it as the unit progresses
Classroom Considerations
  • Assumes the class knows how to solve linear and quadratic equations
  • Second lesson in a seven-part unit
  • Uses colors to highlight different types of angles
  • Shows the steps in solving the algebraic solutions to the problems
  • None