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Activation—Unit 5 Day 1 August 5 th , 2013. Draw a coordinate plane and answer the following: 1. What are the new coordinates if (2,2) moves right 3 units? 2. What if (2,2) moves down 6 units? 3. How far and in what directions does the shape on the left have to move to make the shape on

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activation unit 5 day 1 august 5 th 2013
Activation—Unit 5 Day 1August 5th, 2013

Draw a coordinate plane and answer the following:

1. What are the new coordinates if (2,2) moves right 3 units?

2. What if (2,2) moves down 6 units?

3. How far and in what

directions does the shape

on the left have to move

to make the shape on

the right?

unit 5 day 1 august 5 th
Unit 5 Day 1 August 5 th

I can recognize essential geometry definitions and perform and recognize translations.

G.CO.1Know precise definitions of angle, circle, perpendicular line, parallel line, and line segment, based on the undefined notions of point, line, distance along a line, and distance around a circular arc.

G.CO.4Develop definitions of rotations, reflections, and translations in terms of angles, circles, perpendicular lines, parallel lines, and line segments.

G.CO.5 Given a geometric figure and a rotation, reflection, or translation, draw the transformed figure using, e.g., graph paper, tracing paper, or geometry software. Specify a sequence of transformations that will carry a given figure onto another.

essential definitions
Essential Definitions

Know the lingo!

Practice matching the word to the right

definition.

Memorize the words and their definitions. (You

will need them in Units 5 & 6)

what are transformations
What are transformations?

Transformations are the mapping, or movement, of all points of a figure in a plane according to a common operation, such as translation, reflection or rotation. Examples:

Which transformations are these examples of?

introducing reflections
Introducing Reflections:

A reflection is a transformation of a figure that creates a mirror image, “flips,” over a line.

Examples:

introducing reflections1
Introducing Reflections:

A reflection is a transformation of a figure that creates a mirror image, “flips,” over a line.

Examples:

introducing reflections2
Introducing Reflections:

A reflection is a transformation of a figure that creates a mirror image, “flips,” over a line.

Examples:

introducing reflections3
Introducing Reflections:

A reflection is a transformation of a figure that creates a mirror image, “flips,” over a line.

Examples:

introducing rotations
Introducing Rotations:

A rotationis a transformation that turns a figure about a fixed point through a given angle and a given direction, such as 90° clockwise about the origin. Examples:

introducing rotations1
Introducing Rotations:

A rotationis a transformation that turns a figure about a fixed point through a given angle and a given direction, such as 90° clockwise about the origin. Examples:

introducing rotations2
Introducing Rotations:

A rotationis a transformation that turns a figure about a fixed point through a given angle and a given direction, such as 90° clockwise about the origin. Examples:

introducing dilations
Introducing Dilations:

A dilation is a similarity transformation in which a figure is enlarged or reduced using a scale factor ≠ 0, without altering the center. Examples:

introducing dilations1
Introducing Dilations:

A dilation is a similarity transformation in which a figure is enlarged or reduced using a scale factor ≠ 0, without altering the center. Examples:

introducing dilations2
Introducing Dilations:

A dilation is a similarity transformation in which a figure is enlarged or reduced using a scale factor ≠ 0, without altering the center. Examples:

introducing symmetries
Introducing Symmetries:

Symmetry is when one shape becomes exactly like another if you flip, slide or turn it. Examples:

introducing symmetries1
Introducing Symmetries:

Symmetry is when one shape becomes exactly like another if you flip, slide or turn it. Examples:

introducing symmetries2
Introducing Symmetries:

Symmetry is when one shape becomes exactly like another if you flip, slide or turn it. Examples:

introducing translations
Introducing Translations:

A translation is a transformation that slides each point of a figure the same distance in the same direction.

Most people find

translations to be

the easiest

transformation

because the shape

just "slides!"

introducing translations1
Introducing Translations:

A translation is a transformation that slides each point of a figure the same distance in the same direction.

Most people find

translations to be

the easiest

transformation

because the shape

just "slides!"

introducing translations2
Introducing Translations:

A translation is a transformation that slides each point of a figure the same distance in the same direction.

Most people find

translations to be

the easiest

transformation

because the shape

just "slides!"

translation algebra
Translation Algebra:

Sometimes we just want to write down the translation, without showing it on a graph.

Example: if we want to say that the shape gets moved 30 Units in the "X" direction, and 40 Units in the "Y" direction, we can write:

translation algebra1
Translation Algebra:

Sometimes we just want to write down the translation, without showing it on a graph.

Example: if we want to say that the shape gets moved 30 Units in the "X" direction, and 40 Units in the "Y" direction, we can write:

This says "all the

x and y coordinates

will become x+30

and y+40."

(See Graph)

translation algebra2
Translation Algebra:

Sometimes we just want to write down the translation, without showing it on a graph.

Example: if we want to say that the shape gets moved 30 Units in the "X" direction, and 40 Units in the "Y" direction, we can write:

This says "all the

x and y coordinates

will become x+30

and y+40."

(See Graph)

translation practice 1
Translation Practice #1:

Describe first using words then using algebra how each of these are translated:

Light preimage

Dark image

translation practice 1 answer
Translation Practice #1 Answer :

Describe first using words then using algebra how each of these are translated:

Light preimage 1. Right 2 units,

up 4 units

2. (x + 2, y + 4)

translation practice 2
Translation Practice #2:

Describe first using words then using algebra how each of these are translated:

Preimage = ABCD

Image = A'B'C'D'

translation practice 2 answer
Translation Practice #2 Answer:

Describe first using words then using algebra how each of these are translated:

Preimage = ABCD

1. Right 6 units,

down 4 units

2. (x + 6, y - 4)

homework
Homework:

Transformations - Translations and Definitions

closing
Closing:

Draw a coordinate plane that spans 6 units in each direction. Then graph each number and translate the following:

1. E(2, 3) - translate 5 units left

2. F(-1, -3) - translate 3 units up

3. Draw the square A(0,0), B(2,0), C(2,2), D(0,2) - translate right 3 units and 4 units down