Every student should have received the study guide attached below. If you are in 0B and did not get it, you may come by or print this one off. Also the review assignment attached below is due for the next block only if you are in 0B, 6th, or 4th.
Today we went over the 3 graphs from pp 371-3 and glued them into appropriate places in our notebooks. Make sure you have written up the definition of "dilation" from the bottom of p 371 into GT, gluing in Example B to go with it. Write up the Conjecture (un-numbered) on p 372: all circles are dilations of each other. Sketch concentric circles with an arrow from the inner to outer circle to show this to be true.
We discussed and practiced with technology and graph paper: dilating a point, dilating a segment where the center is not collinear (so parallel), dilating a segment where the center of dilation IS collinear which yields collinear segments.
We did the investigation on p 376 and added F"O"U"R" with a scale factor of 0.5.
4th, 0B, and 6th were asked to write up the definition of "Similar polygons" from the bottom of p 374, using sketches of CORN ~ PEAS with all of the info between the figures (from p 377). Also write up C-57 from p 375: If one geometric figure is a dilation of another, then the figures are similar.
You do not need a separate sketch for this. Make a note: see definition of dilation above.
Final Review first part is due (worksheet attached) for the next block.