COORDINATE GRAPHING
Graphing in the coordinate plane has lots of practical uses. We use a coordinate graphing system to map points on a map. We will first examine graphing points in the first quadrant of the coordinate plane where all numbers are positive. We will then extend our knowledge of graphing by graphing points in the second, third, and fourth quadrants of the coordinate plane where both positive and negative numbers are used.
SYMMETRY AND TRANSLATIONS
When you fold a shape and both pieces are a reflection of each other, the shape has symmetry. When you turn a shape around a point and the shape maintains the original appearance, it has symmetry. Look around and find symmetrical objects. They are everywhere, both natural and manmade. We will examine line and rotational symmetry.
Many designs that occur naturally or that are man-made display properties of transformation. Properties of transformation are translation, reflection, rotation, and dilation.
Graphing in Quadrant I of the Coordinate Plane
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Graphing in Quadrants II, III, and IV
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Symmetry
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Transformations of Two-Dimensional Shapes
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 Click on the icon to find and practice topics for this unit. |
| Translations |
| Rotations |
| Reflections |