G-CO.2
Represent transformations in the plane using, e.g., transparencies and geometry software; describe transformations as functions that take points in the plane as inputs and give other points as outputs. Compare transformations that preserve distance and angle to those that do not (e.g., translation versus horizontal stretch).
Example Problems
Point Q' is the image of Q under a translation.
What was the translation?
What was the translation?
Point is the image of under a translation.
What was the translation?
What was the translation?
Point is the image of under a translation.
What was the translation?
What was the translation?
Khan Academy ResourcesProperties of translationsTranslations reviewRotations introRotations reviewReflections reviewTranslations introSequences of transformationsReflect shapesDilations: scale factorDetermine rotations (basic)Translate pointsRotate points (basic)Find measures using rigid transformationsDilate trianglesDefining transformationsDilate pointsReflect pointsRotate pointsRigid transformations: preserved propertiesSimilarity & transformationsDetermine reflectionsDetermine translationsTranslate shapesDilations and propertiesDetermine rotationsSide lengths after dilationSequences of transformationsDilations: scale factorRigid transformations introRigid transformations: preserved propertiesFinding measures using rigid transformationsDilations and propertiesSimilar shapes & transformations
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