Lesson 52 Transformations Day 3.notebook
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Lesson #52 Isometries, Composition, and OrientationMath 433 Mr. Greenberg
Objective: Students will be able to identify transformations as direct and indirect isometries and perform composition of transformations.
Do Now: Take out your stations
Jan 246:57 PM
Reflect (5, 4)a) over the xaxis
b) over x = 1
c) over x = 2
d) over y = 5
Lesson 52 Transformations Day 3.notebook
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January 28, 2018
Jan 246:58 PM
Rotate (2, 3)a) 90 degrees
b) 180 degrees
c) 270 degrees
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A line reflection can be thought of as a flip, a rotation as a turn, and a translation as a slide. The image of a figure is congruent to the original figure that was flipped, turned, or slid. Thus, we can say that distance is preserved. Angle measure, parallelism, midpoint, area, and collinearity are all also preserved. A transformation that preserves distance is called an ______________.
The order in which the vertices of a figure appear is called the orientation of the figure. A transformation may or may not preserve this orientation. A ___________________ is an isometry that preserves orientation (the order of the vertices). An ___________________________ is an isometry that changes the order of the vertices from counterclockwise to clockwise or vice versa.
Lesson 52 Transformations Day 3.notebook
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Lesson 52 Transformations Day 3.notebook
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Lesson 52 Transformations Day 3.notebook
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January 28, 2018
Jan 2810:44 AM