Lessons for G.CO.A.4
Composing transformationsApplying one transformation and then another, where the order can change the result.Lesson
ReflectionsFlipping a figure over the x axis or the y axis by changing the sign of one coordinate.Lesson
Rigid motions defined precisely, and what they preserveTranslations, reflections and rotations defined from segments, perpendicular bisectors and circles, and why each keeps distances and angles.Lesson
Two reflections in a rowReflecting twice gives a translation when the mirrors are parallel and a rotation when they cross.Lesson
Printable Worksheets
Composing transformations worksheet (PDF)Printable worksheet with answer keyPreview
Reflections worksheet (PDF)Printable worksheet with answer keyPreview
Rigid motions defined precisely, and what they preserve worksheet (PDF)Printable worksheet with answer keyPreview
Two reflections in a row worksheet (PDF)Printable worksheet with answer keyPreview