Lesson #9 - Intersecting lines, triangle angle measure

  • Lesson plan
  • Angle rules handout
  • Triangle angle cutout for in-class
  • In-class exercise - page 1
  • In-class exercise - page 2
  • Homework - page 1
  • Homework - page 2
  • Homework - page 3
  • Practice competition instructions
  • Practice competition #1: Measurement
  • Practice competition #2: Geometry (page 1)
  • Practice competition #2: Geometry (page 2)
  • Answers

  • Note: Practice competitions are meant for use in a second one-hour class on a weekly basis. They reinforce recently learned concepts and give students practice working in teams.