School has decided to have a school wide math contest on 4/6/2014 (the midterm exam day) and all Math class students will take part in this contest. We have decided to use the contest in place of the midterm exam.
We will teach today, have the math contest next time, and use the lesson after the contest to go over the contest questions.
Up to now the three kinds of transformations we have talked about: Reflection, Rotation, and Translation, all do not change the figure’s shape and size. They are called rigid transformation. Today we talk about enlargement where the shape remains but the size changes. And an enlargement transformation can increase (when the scale fact is bigger than 1) and reduce (when the scale factor is less than 1) the size. And there must be a center of enlargement.
Lastly, we talked about the combination of multiple transformations and how to identify each transformation involved and fully describe it.
Homework:
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