1. Warm Up Find the values of y by substituting x = 2, 3, 10 1. y = 3x-1 2. y = 4(x+3) 3. y = 8(x+4) + x(8+x)

2. Today’s Objective  To identify basic shapes and figures in Geometry in order to use them for future objectives.  Homework: Marking Figures Worksheet

3. To identify basic shapes and figures in Geometry  Warm Up√  Anticipatory Set  Marking Figures  Vocabulary  Ruler Postulate notes  Segment Addition Postulate Notes  Intersecting Lines and Planes  Gallery Walk  Closure

4. Anticipatory Set  Where in the room do we find:  Point  Line  Plane  Segment  Ray

5. Marking Segments Measurements: Congruent/Equal Segments: Bisected Segments: F E 4 cm B A D C Z X G H Y

6. Warm Up  Mark up the angles and segments to show the statements Z X G H Y K L J M

7. Today’s Objective  TSWBAT understand basic figures and postulates in Geometry in order to use them later in the course.  Homework: Pg 12 #1-19 odd

8. To identify basic shapes and figures in Geometry  Warm Up√  Anticipatory Set√  Marking Figures Worksheet√  Vocabulary  Ruler Postulate notes  Segment Addition Postulate Notes  Intersecting Lines and Planes  Gallery Walk  Closure

9. Vocabulary 1. Postulate 2. Coordinate 3. Distance 4. Between 5. Congruent Segments

10. Postulate  A rule that is accepted without any proof

11. Coordinate  The number that corresponds to a point  Where the point is located AB Name of Points 36 Coordinate of Points

12. Distance 1. How far apart two things are. 2. The absolute value of the difference of the coordinates of the point 1. A is at coordinate 1 2. B is at coordinate 8 3. The distance between A and B is: Which equals?

13. Between  When 3 points are collinear then the point in the middle is “between” the other two  B is between A and C A B C

14. Congruent Segments  Line segments that have the same length are congruent segments.

15. To identify basic shapes and figures in Geometry  Warm Up√  Anticipatory Set√  Marking Figures Worksheet√  Vocabulary √  Ruler Postulate notes  Segment Addition Postulate Notes  Intersecting Lines and Planes  Gallery Walk  Closure

16. Ruler Postulate  The points on a line can be matched one to one with the real numbers. Giving them coordinates  Using their coordinates, we can find the distance between the points A=0B=3C=5D=10

17. To identify basic shapes and figures in Geometry  Warm Up√  Anticipatory Set√  Vocabulary Quiz√  Vocabulary √  Ruler Postulate notes √  Segment Addition Postulate Notes  Intersecting Lines and Planes  Gallery Walk  Closure

18. Segment Addition Postulate  If B is between A and C, the AB + BC = AC  AB = 15  BC = 20  AC = 35 A B C 15 20 AC 35

19. Example of Segment Addition  If segment EG is 36 and segment EF is 21, what is segment FG? F G E

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21. Let’s Review the Vocabulary