Presentation is loading. Please wait.

Presentation is loading. Please wait.

DO NOW Directions (Part 1):

Published byDenis Marshall Snow Modified over 6 years ago

Similar presentations

Presentation on theme: "DO NOW Directions (Part 1):"— Presentation transcript:

1 DO NOW 10.2.17 Directions (Part 1):
Open your Engage NY Module 3 workbooks to the inside cover. On the top line, write today’s date. Draw the two figures below on the page. You need to label the vertices. You also need to label the side lengths (in cm). Write your name on your new Module 3 book Directions (Part 2) – Make sure to leave space to answer: Look at the two figures. Does this appear to be an enlargement or a reduction? How do you know? ________________________________________________________________________________________________________________________________________________________________________________ Compare Segment AB to A’B’. What do you notice? __________________________________________ Compare Segment AC to A’C’. What do you notice? __________________________________________ Compare Segment BC to B’C’. What do you notice? __________________________________________ What is the scale factor used in this dilation? How do you know?

2 A dilation is an enlargement or a reduction.
CCSS.MATH.CONTENT.8.G.A.3 Describe the effect of dilations, translations, rotations, and reflections on two-dimensional figures using coordinates. Enlargement Original Size A dilation is an enlargement or a reduction.

3 Original Figure (Pre-image)

4 Turn to Page S.1 I believe the figures in Pair A are similar / are not similar because: _________________________________________________________________________________ The triangles are the same shape, but different sizes I believe the figures in Pair B are similar / are not similar because: _________________________________________________________________________________ The shapes are different in both shape and size.

5 Turn to Page S.1 I believe the figures in Pair C are similar / are not similar because: _________________________________________________________________________________ I believe the figures in Pair D are similar / are not similar because: _________________________________________________________________________________

6 Turn to Page S.2 I believe the figures in Pair E are similar / are not similar because: _________________________________________________________________________________ I believe the figures in Pair F are similar / are not similar because: _________________________________________________________________________________

7 Turn to Page S.2 I believe the figures in Pair G are similar / are not similar because: _________________________________________________________________________________ I believe the figures in Pair H are similar / are not similar because: _________________________________________________________________________________

8 Turn to Page S.2 O P

9 Turn to Page S.3

10 Turn to Page S.3

11 Turn to Page S.3

12 Turn to Page S.4

13 Turn to Page S.5

14 Turn to Page S.5 This means, use the information given. Do not rely on the picture below, it is only a guide to show you that a dilation is occurring.

15 Turn to Page S.6

Download ppt "DO NOW Directions (Part 1):"

Similar presentations

Lesson 7.5 Dilations.

Lesson 7.5 Dilations.
Math 10F Transformational Geometry Examples. Translations Translations are “slides” Described by a length and direction Eg. translate the following shape.

Math 10F Transformational Geometry Examples. Translations Translations are “slides” Described by a length and direction Eg. translate the following shape.
Geometry: Dilations. We have already discussed translations, reflections and rotations. Each of these transformations is an isometry, which means.

Geometry: Dilations. We have already discussed translations, reflections and rotations. Each of these transformations is an isometry, which means.
Reflection symmetry If you can draw a line through a shape so that one half is the mirror image of the other then the shape has reflection or line symmetry.

Reflection symmetry If you can draw a line through a shape so that one half is the mirror image of the other then the shape has reflection or line symmetry.
Dilations Shape and Space. 6.7 cm 5.8 cm ? ? Find the missing lengths The second picture is an enlargement of the first picture. What are the missing.

Dilations Shape and Space. 6.7 cm 5.8 cm ? ? Find the missing lengths The second picture is an enlargement of the first picture. What are the missing.
2.7: Dilations.

2.7: Dilations.
Properties of Dilations, Day 2. How do you describe the properties of dilations? Dilations change the size of figures, but not their orientation or.

Properties of Dilations, Day 2. How do you describe the properties of dilations? Dilations change the size of figures, but not their orientation or.
Objectives Define and draw lines of symmetry Define and draw dilations.

Objectives Define and draw lines of symmetry Define and draw dilations.
1.(2,4) 2. (-3,-1) 3. (-4,2) 4. (1,-3).  The vertices of a triangle are j(-2,1), K(-1,3) and L(0,0). Translate the triangle 4 units right (x+4) and 2.

1.(2,4) 2. (-3,-1) 3. (-4,2) 4. (1,-3).  The vertices of a triangle are j(-2,1), K(-1,3) and L(0,0). Translate the triangle 4 units right (x+4) and 2.
Translations, Rotations, Reflections, and Dilations

Translations, Rotations, Reflections, and Dilations
Have you ever wondered how different mirrors work? Most mirrors show you a reflection that looks just like you. But other mirrors, like the mirrors commonly.

Have you ever wondered how different mirrors work? Most mirrors show you a reflection that looks just like you. But other mirrors, like the mirrors commonly.
An operation that moves or changes a geometric figure (a preimage) in some way to produce a new figure (an image). Congruence transformations – Changes.

An operation that moves or changes a geometric figure (a preimage) in some way to produce a new figure (an image). Congruence transformations – Changes.
Rotations and Dilations

Rotations and Dilations
Objective Identify and draw dilations..

Objective Identify and draw dilations..
A dilation is a transformation that changes the size of a figure but not its shape. The preimage and the image are always similar. A A’

A dilation is a transformation that changes the size of a figure but not its shape. The preimage and the image are always similar. A A’
Transformation Geometry Dilations. What is a Dilation?  Dilation is a transformation that produces a figure similar to the original by proportionally.

Transformation Geometry Dilations. What is a Dilation?  Dilation is a transformation that produces a figure similar to the original by proportionally.
4-1 Congruence and transformations. SAT Problem of the day.

4-1 Congruence and transformations. SAT Problem of the day.
EXAMPLE 1 Draw a dilation with a scale factor greater than 1

EXAMPLE 1 Draw a dilation with a scale factor greater than 1
Lesson 2.7 Objective: To complete dilations on a coordinate plane.

Lesson 2.7 Objective: To complete dilations on a coordinate plane.
Bell Work: Simplify 4.36 0.4. Answer: = 10.9 LESSON 26: TRANSFORMATIONS.

Bell Work: Simplify Answer: = 10.9 LESSON 26: TRANSFORMATIONS.

Similar presentations

Ads by Google