This Power Point Presentation provides students with 10 multiple choice practice problems, applying the Angle Sum Theorem & the Exterior Angle Theorem. You may use this with clickers (Turning Point), if you have them, or without. A PDF option is available also.
The questions build in difficulty:
Questions 1-2: Basic application of Triangle Sum Theorem
Questions 3-5: Triangle Sum Theorem (Using Algebra)
Questions 6-7: Basic application of Exterior Angle Theorem
Questions 8-10: Exterior Angle Theorem (Using Algebra)
I used this in my 8th grade Pre-Algebra class the day after I had introduced the lesson. I had students work out the problems on mini whiteboards.