Translations and Glide Reflections

In this lesson I will teach you about translations and glide reflections.  Assuming you have watched the previous lessons in this chapter you know we are studying transformations.  Recall a transformation is a mapping of a figure to another location.  In the previous lessons we have looked at the transformations of reflections, rotations and dilations.  Now we will explore another type of transformation called a translation.  Wow I know the words “transformation” and “translation” are very similar so make sure to not to confuse the two.  Ok what is a translation?  Well a translation is a simple transformation such that we move a figure up or down or side to side.  A glide reflection is a transformation where we first do a translation- then a reflection.  Confused?  Don’t stress the video will show this very clearly and I’m sure you will understand.  As in the other lessons you want to have graph paper and a ruler to practice the concepts.  How do you like geometry so far? If you have watched and understood all the lessons to this point in the course you have a lot to be proud of- great work!

TabletClass Math Translations Guide Reflection Lesson from John Zimmerman on Vimeo.

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