Unit 3 Vocab.
Published on Nov 18, 2015
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MORE DECKS TO EXPLORE
PRESENTATION OUTLINE
TRANSFORMATION
- Moving a shape so that it is in a different position, but still has the same size, area, angles and line lengths.
- Turn, flip or slide are the basic moves.
- This is an example of a turn (rotational) transformation.
ISOMETRY
WHEN THE ORIGINAL FIGURE AND ITS IMAGE ARE CONGRUENT.
TRANSLATION
- Function that moves every point a constant distance in a specified direction.
- Real World Example: pushing a box from one side of a room to the other.
COMPOSITION OF TRANSFORMATIONS
- When 2 or more transformations are combined to form new transformation.
- Real World Example: getting life insurance depends on your age.
REFLECTION
- A transformation that creates a mirror image of the shape.
- Real World Example: a mirror.
ROTATION
A CIRCULAR MOVEMENT
SYMMETRY
EXACTLY SIMILAR PARTS FACING EACH OTHER OR AROUND AN AXIS
SYMMETRY REFLECTION
- When one half is reflection of the other half
- Real World Example: the reflection from a lake.
ROTATIONAL SYMMETRY
THE SHAPE OR IMAGE CAN BE ROTATED AND IT WILL LOOK THE SAME
POINT SYMMETRY
- Point Symmetry is when every part has a matching part that is ...
- ...the same distance from the central point...
- ...but in the opposite direction.
- Real World Example: a playing card.
LINE SYMMETRY
THE IMAGINARY LINE WHERE YOU COULD FOLD THE IMAGE AND TWO EQUAL HALVES.
DILATION
TO RESIZE SOMETHING.
GLIDE REFLECTION
THE TRANSFORMATION THAT IS A MIX OF REFLECTION AND TRANSLATION
