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The Connection Between Algebra and Geometry

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Unit Topics Introduction to Coordinate Geometry Coordinate Systems

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Unit Preview Kick-off Activity KWL Notebook Knowledge Terms to Know Properties of Geometric Figures

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Terms to Know Angle Angles of Arc Circle Great Circle Horizontal Line Line Segment Perpendicular Plane Point Ray Rectangle Sphere Square Vertical

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The Coordinate Plane

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Seating Chart ABCDAisleEF 1 RayChristine 2 BrianPegLiz 3 NancyShawnChuck 4 Prof.PeterKristenLaura What is the location of your seat? ABCDAisleEF 1 RayBrianChristineLiz 2 ShawnPeg 3 NancyKristenLauraChuck 4 Prof. Find Your New Seat

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Terms to Know Axes Coordinate Plane Coordinates Graph a Point Grid Number Lines Ordered Pair Origin Quadrants x-axis x-coordinate y-axis y-coordinate

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x-axis y-axis 1 2 3 4 5 -2 -3 -4 -5 12345-2-3-4-5 Origin Axes Coordinate Plane Quadrant 1 Quadrant 4Quadrant 3 Quadrant 2 (4, 5)________________ __-____________ Quadrants A

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x-axis y-axis 1 2 3 4 5 -2 -3 -4 -5 12345-2-3-4-5 Representing Geometric Figures Line Segments Angles Geometric Shapes (circles, rectangles, squares, …) Rays

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x-axis y-axis 1 2 3 4 5 -2 -3 -4 -5 12345-2-3-4-5 Coordinate Plane Quadrant 1 Quadrant 4Quadrant 3 Quadrant 2 Graph a Point (x, y) (-3, 4) (-2, -3) (1, -2) (5, 5) (0, 0) (-1, 5) A B C D E F

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1 2 3 4 5 -2 -3 -4 -5 12345-2-3-4-5 Coordinate Plane and Graphing Review Graph the Point Name the Quadrant (-4, 2) (-1, -5) (5, -2) D E F A B C

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Life Connection

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You are stranded in the middle of the ocean. You have a raft but no food or water. The sun is high and hot. What would make it possible for someone to find you and rescue you? 5 lines

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Terms to Know Coordinate System Equator Geographic Coordinate System Latitude Longitude Prime Meridian Rectangular Coordinate System René Descartes

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Geographic Coordinate System

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References Latitude and longitude image from http://berjaenglish.wikispaces.com/Parallels+and+Me ridians http://berjaenglish.wikispaces.com/Parallels+and+Me ridians

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