GeoGebra Classroom

# Translation and Reflection

## Wednesday Practice Lesson

Today, you should spend 35 minutes practicing translations and reflections on geogebra. If the lesson is taking you much longer than 35 minutes, you can make a comment on google classroom to let me know how far you got. To let me know you are finished, make sure you click "submit" on the google classroom assignment.

## Translation

Next, we'll work on translating shapes. Watch the video on using the "translate" tool in geogebra, then practice translating in the applet.

## Look at the image above.

1) What vector was use to translate ABC to A'B'C'? 2) What would happen if we translated the triangle by vector m and then by vector v?

## Use the "translate by vector" and "reflect over line" to show each transformation described below. Use the style bar (top right) to choose a different color for each one.

1) Translate figure S along the vector v. Color this image green. 2) Reflect the figure S across line y. Color this image blue. 3) Reflect figure s across line m. Color this image purple. 4) Translate figure S along the directed line segment w. Then reflect the image across the line y. Color this image pink.

## Look at the images you created in the last activity.

1) How are the images different? 2) How are they the same?