1. Key Vocabulary
   1. Right Angles
   2. Protractor
   3. Compass
   4. Straight Edge
   5. Acute Angles
   6. Complementary Angles
   7. Supplementary Angles
   8. Angle Vertex
   9. Reflex Angle
   10. Straight Angle
   11. Obtuse Angles
2. Skills Needed
   1. Identify and classify angles according to size.
   2. draw a given angle measure to the nearest degree
   3. measure angles accurately to the nearest degree
   4. Appropriate notation used to identify angle measures
   5. Knowledge of triangle and angle properties
3. Key Concept
   1. Use protractors to accurately measure & classify the angles according to their measures
   2. Use a protractor and straight edge to accurately draw a given angle measure to the nearest degree
   3. Accurately classify angles as right, straight, obtuse, acute, or reflex.
   4. Accurately label angles using 3 points
   5. Parallel lines and angle measures
   6. Find angle measures using sums and angle property knowledge