Rigid transformations bring together algebra and geometry in an interesting connection. Our big idea is that a rigid transformation in a plane creates an image that is congruent to the original pre-image (maintains distance and angle when moving).
We created notes from reading in class today (copy attached). We also did investigations 1 and 2 from pp 81-83 in the textbook. And we practice rotating 90 degrees on a grid.
All grades through HW #1 are caught up and posted. Check through HAC to make sure I have not made any mistakes.
HW #2 needs graph paper and a small piece of patty paper. You can print off graph paper by googling "graph paper PDF". Waxed paper or tracing paper will work for patty paper.
HW #2 - pp 85-86:1-14,21-23. It is OK to do the entire assignment on graph paper if you wish.
Quiz on Fri-Mon, 18 pts, at the end of class.