2. Coordinate Graphing Dorinda Forsythe Cobb 6 th Grade Campus GPISD

3. TEKS Objective 6.7 The student uses coordinate geometry to identify location in two dimensions.

4. Purpose The learner will locate and name points on a coordinate plane using ordered pairs of non- negative rational numbers.

5. When will I ever use coordinate graphing in real life?  Police officers, fire fighters, and taxi drivers all use coordinate graphing daily when using maps.  The GPS in your car uses latitude and longitude (x,y) to locate your desired destination.  On Star and 911 emergency personnel use GPS to find you in an emergency.

6. Coordinate Graph A coordinate plane has a pair of perpendicular lines that form the axes. The vertical line is the y axis, and the horizontal line is the x axis. y x

7. How to name points.  An ordered pair is (x,y)  ‘Start at (0,0), this is where the two axes cross. The first number in the ordered pair represents the distance to travel on the x axis. The second number in the ordered pair represents the distance that you travel vertically (up or down) in the plane.

8. Guided Practice  Name the points y x...... a b c d e f a:(, )b:(, ) c:(, )d:(, ) e:(, )f:(, )

9. Independent Practice  Go to this web site and complete the activity.  http://teacher.scholastic.com/lessonrepr o/reproducibles/profbooks/brainboostma th.pdf

10. Conclusion  Students use coordinates to locate points and travel on a plane.