In this lesson leading up to our assessment, we considered different ways to show that two triangles are similar.
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These are the notes that accompany the video lessons (part 1 and part 2) accessible at my youtube channel or at classroom.google.com. this focuses on how to determine similarity by performing more than JUST dilations.
This is the link to the youtube video for part 2 of the lesson on Friday October 28. ON Thursday we consolidated our knowledge of dilations with a review lesson.
In this lesson, students got practice with more complicated dilations, and were asked more challenging questions regarding dilations on a coordinate plane.
this lesson tackled a challenging theorem called the fundamental theorem of similarity that helps students show that dilating a pair of points by the same scale factor will produce parallel lines that are proportional.
In this lesson, we worked with dilations and students got practice constructing dilations with compasses and rulers.
This first lesson of module 3 introduced the concept of similarity and a new transformation--dilations. We saw that dilations are not rigid motion transformations, as they can change the size of a line segment or shape.
Using what we know about parallel lines and triangles, can we find missing angle measurements?
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