1. 9 mm 5 mm Opener 1. How much more area does the bigger rectangle have? 2. What is the area of the triangle? 3. How much more area does the square have than the triangle? 5 in 15 in 2 in 7 in 11 cm 6 cm 12 cm 5.47 cm

2. Opener 1. How much more area does the bigger rectangle have? 5 in 15 in 2 in 7 in

3. Opener 2. What is the area of the triangle? 11 cm 6 cm 12 cm 5.47 cm

4. 9 mm 5 mm Opener 3. How much more area does the square have than the triangle? Area of Square: Area of Triangle:

5. Think / Record / Report Explain why definitions are or are not important. THINKRECORD REPORT Key Vocab: n/a Sentence Starter: "Definitions are (are not) important because..."

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7. Essential Question Learning Objective Why are the undefined terms important in geometry? I will identify and describe the undefined terms and use them to define other geometric objects.

8. . you should know: What is perimeter and area how to calculate perimeter and area of rectangles, squares, and triangles what you've learned: the undefined terms 1.1 Undefined Terms

14. Point

15. Line

19. T A B C D E m l a)Give two other names for b)Give another name for plane T c)Name three points that are collinear d)Name four points that are coplanar

26. Q P S T R a) Give another name for b) Name all rays with endpoint Q. Which of these rays are opposite rays?

31. Essential Question Learning Objective Why are the undefined terms important in geometry? I will identify and describe the undefined terms and use them to define other geometric objects.

32. Closure 1. What are the three undefined terms? 2. Give an example of each one, based on the picture below.

33. HW HW #1 p.5 #1, 3-13, 27- 38 (odd), 46