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Transitions

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by

Miriam Heras

on 26 January 2015

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Transcript of Transitions

Transitions
Melissa Sanchez
Patricia Bobadilla
Miriam Heras
Reflection:
Reflection Example:

Rotations:

Credits
http://images.pcmac.org/SiSFiles/Schools/MS/DeSotoCounty/SouthavenMiddle/Uploads/Forms/Lesson%20Plan-%20Rot_Dilations.pdf
www.Prezi.com
7th grade textbook pages: R17,
Miriam Heras
Melissa Sanchez
Patricia Bobadilla
The End!!
Reflection:
A type of transformation in which a figure is flipped over a line of symmetry(mirror image).
To reflect a figure over the y or x-axis on a cordinate plane you have to count the amount of spaces from any point to the axis line. Then, you start on the axis line and go the opposite direction the same amount of spaces.
The points were all the same just on the opposite side. Your points below the x-axis are your new points(prime points).


Translations:
One tipe of transformation that a geometric figure is slid horizantlly,vertical, or both.
Rotations can occur in either a clockwise or counterclockwise direction.
To work with rotations, you need to be able to recognize angles of certain sizes. A clock is a good example that illustrates the different angles we’ll be working with when looking at rotations:
Rotation=Turn
A rotation is a transformation that turns a figure about a fixed point called the center of rotation.
 An object and its rotation are the same shape and size, but the figures are turned in different directions.
 The rotation of an object is called its image. If the original object was labeled with letters, such as triangle ABC, the image may be labeled with the same letters followed by a prime symbol, A'B'C'.
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Counter-clockwise
Clockwise
Now It's Your Turn!!!
Reflect triangle MLN over the x-axis
Now it's your turn again:
Rotate this figure around point "C" 90 degrees clockwise.
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Translate this image 5 units up, 2 right, 3down, and 4 left.
Dialations:

Dilation = Size Change


A dilation is a transformation that produces an image that is the same shape as the original,
but is a different size.

A good real-life illustration of dilation would be our pupils and how they react to sunlight .
Our pupils reduce in size (or get smaller) when we are in the sunlight.
Our pupils enlarge in size (or get bigger) when it’s dark.
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