Lesson plan

Recognize congruence when rotating an image by using ordered pairs

teaches Common Core State Standards CCSS.Math.Content.8.G.A.1 http://corestandards.org/Math/Content/8/G/A/1
teaches Common Core State Standards CCSS.Math.Content.8.G.A.1a http://corestandards.org/Math/Content/8/G/A/1/a
teaches Common Core State Standards CCSS.Math.Content.8.G.A.1b http://corestandards.org/Math/Content/8/G/A/1/b
teaches Common Core State Standards CCSS.Math.Content.8.G.A.1c http://corestandards.org/Math/Content/8/G/A/1/c

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Big Ideas: Numbers, expressions, and measures (for example lines and angles) can be compared by their relative values. Two- and three-dimensional objects with or without curved surfaces can be described, classified, and analyzed by their attributes (for example the size of their angles and sides). Objects in space can be oriented in an infinite number of ways, and an object’s location in space can be described quantitatively. When rotating a point about the origin the x and y values will change. The signs of the values depends on quadrant location. Students will be able to apply a rotation to an ordered pair, and be able to explain that the resulting new image is congruent to the original pre-image. Vocabulary: Congruency, Similarity, Transformation, Translation, Reflection, Rotation, Parallel, Image, Prime, Notations, Order pair, notation, Pre-Image, Angle, Line, Parallel Line Special Materials: Graph Paper Rulers Protractor Geo boards Patty Paper Geometry Software