G.CO.A.1
Describe transformations as functions that take points in the plane (pre-image) as inputs and give other points (image) as outputs. Compare transformations that preserve distance and angle measure to those that do not, by hand for basic transformations and using technology for more complex cases.
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 translationsTranslating shapesRotations introDetermining rotationsReflecting shapesTranslations introDetermining translationsMapping shapesSequences of transformationsReflect shapesDilations: scale factorCongruence & transformationsTranslate pointsFind measures using rigid transformationsDilate trianglesDefining transformationsDilate pointsIdentify transformations Reflect pointsRigid transformations: preserved propertiesDetermine reflectionsDetermine translationsTranslate shapesDilations and propertiesTranslating shapesRotating pointsTranslating pointsDilating shapes: expandingReflecting pointsDetermining translationsIdentifying transformationsDilations introMapping shapesNon-congruent shapes & transformationsDetermining rotationsSequences of transformationsDilations: scale factorRigid transformations introDilating shapes: shrinking by 1/2Rigid transformations: preserved propertiesFinding measures using rigid transformationsDetermining reflectionsDilations and propertiesReflecting shapesDilating pointsCongruent shapes & transformations
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