1. + HOMEWORK: 1. 1.3 PRACTICE A WKSHT 2. QUIZ EXTRA CREDIT 3. CHAPTER 1 SECTIONS 1.1-1.3 QUIZ ON WEDNESDAY DO NOW: NAME THREE POINTS THAT ARE COLLINEAR OBJECTIVE: use postulates and undefined terms

2. + HOMEWORK CHECK Textbook p. 17 # 16, 18, 22, 26, 32, 34, 36, 42, 44, 50 and 52 16. BC and DE 18. Plane T or plane ADE 22. true 26. true 32. F 34. M 36. T and two points on RV; for example R, S, T 42. E 44. G 50. K, L, M, and N 52. L, M, Q and R

3. + REVIEW…POSTULATE 1: TWO POINTS DETERMINE A LINE n Line n passes through points P and Q WordsSymbols P Q Through any two points there is exactly one line

4. + REVIEW…POSTULATE 2: THREE POINTS DETERMINE A PLANE Through any two THREE NONCOLLINEAR points there is exactly ONE PLANE. Plane T passes through points A, B and C. WORDSSYMBOLS A B C T

5. + GROUPWORK p. 17 # 20, 24, 30, 38, and 40 Now choose one of the problems to write on the board! CHOOSE A PARTNER AND COMPLETE EACH OF THE FOLLOWING PROBLEMS

6. + ANSWERS 20. false 24. true 30. F 38. D 40. H

7. + CLOSING WHY CAN’T TWO POINTS BE COPLANAR?