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Table of Contents. September 2012. October 2012. Look at the set of points. (1,5) (2,6) (3,7) (4,\_\_) 1a. What number would go in the blank? Plot the points. 1b. What are some other points that would fit the pattern? Plot them. (\_\_\_,\_\_\_\_) (\_\_\_\_,\_\_\_\_) (\_\_\_\_\_,\_\_\_\_\_)

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warm up 1
Look at the set of points.

(1,5)

(2,6)

(3,7)

(4,__)

1a. What number would go in the blank? Plot the points.

1b. What are some other points that would fit the pattern? Plot them.

(___,____) (____,____) (_____,_____)

1c. Are they on a line?

1d. What is the relationship between each pair of numbers?

Warm-Up #1
stretching and shrinking introduction
Stretching and Shrinking Introduction

What does the word similar mean to you?

Draw a picture of similar figures

Similar means

Summary: What can be the same and what can be different about two similar figures?

warm up 2
Look at the set of points.

(3,9)

(5,13)

(7,17)

(9,21)

1a. What number would go in the blank? Plot the points.

1b. What are some other points that would fit the pattern? Plot them.

(___,____) (____,____) (_____,_____)

Are they on a line?

What is the relationship between each pair of numbers?

(______,______)

Warm-Up #2
slide8
Stretching and Shrinking

Reducing and Enlarging Shapes

Investigation 1.1

15in.

_______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ (use other side of paper if needed.)

slide9
Independent Work and Mathmatical Reflection

Using the picture……How tall would the person in the picture be if the magazine was 15in. in reality and .5 in. on the picture?

Show your work!!

warm up 3
Look at the set of points.

(1,5)

(2,6)

(3,7)

(4,__)

1a. What number would go in the blank? Plot the points.

1b. What are some other points that would fit the pattern? Plot them.

(___,____) (____,____) (____,_____)

1c. Are they on a line?

1d. What is the relationship between each pair of numbers?

(______,______)

Warm-Up #3
slide11
Investigation 1.3 Scaling Up---Scaling Down

Vocabulary Word

Corresponding Sides

Corresponding Angles

Definition:

Example or Picture

slide12
______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
warm up 4
Look at the set of points.

(1,5)

(2,6)

(3,7)

(4,__)

1a. What number would go in the blank? Plot the points.

1b. What are some other points that would fit the pattern? Plot them.

(___,____) (____,____) (____,_____)

1c. Are they on a line?

1d. What is the relationship between each pair of numbers?

(______,______)

Warm-Up #4
slide15
Given the information in the table predict what will be the difference between the wump family members?

_______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

warm up 5
Look at the set of points.

(1,5)

(2,6)

(3,7)

(4,__)

1a. What number would go in the blank? Plot the points.

1b. What are some other points that would fit the pattern? Plot them.

(___,____) (____,____) (____,_____)

1c. Are they on a line?

1d. What is the relationship between each pair of numbers?

(______,______)

Warm-Up #5
slide17
2.1 Con’t…..Graph the Wumps…

Attach the graph to the other side of this page

______________________________________________________________________________________________________________________________________

__________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

slide18
2.2 Hats off to the Wumps

Changing a Figures Size and Location

What happens when you add or subtract from a point on a graph versus what happens when you multiply by a number?

________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

warm up 6
Warm-Up #6

Ordered Pairs

( , )

( , )

( , )

( , )

warm up 8
Warm-Up #8

Ordered Pairs

( , )

( , )

( , )

( , )

3 3 scale factor and similar figures
3.3 Scale Factor and Similar Figures

Summary

When figures are similar, how are the lengths, areas, and scale factor related?

warm up 9
Warm-Up #9

Ordered Pairs

( , )

( , )

( , )

( , )

4 1 ratios within similar parallelograms
4.1 Ratios within similar parallelograms

Vocabulary

Ratios

Equivalent Ratios

Three ways a ratio can be written are…..

Examples

warm up 10
Warm-Up #10

Ordered Pairs

( , )

( , )

( , )

( , )

4 2 ratios within similar triangles
4.2 Ratios within Similar Triangles

___________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

warm up 11
Warm-Up #11

http://www.r-prollc.com/SavingEnergy.html

  • The graph has recorded trends from one day’s energy usage.
  • What is the largest source of residential energy cost according to the pie chart? _____________
  • The graph represents residential energy source for one day. Which source is represented in the graph and why? _______________________________________ ____________________________________________________________________________________________________________________________________________________________________________________________________________ ____________________________________________________________________
4 3 finding missing parts
4.3 Finding Missing Parts

When you know two figures are similar, name two ways you can find the missing parts?

Example

warm up 12
Warm-Up #12

http://www.aquaprosolutions.com/index_files/Brac_greywater_reclamation.htm

  • The graph has recorded trends from weeks water usage.
  • Which is the largest source of water usage according to the pie chart? _____________ What can you do to conserve water?_______________________
  • __________________________________________________________________
  • The graph represents one source of residential water usage for a week. What story could this tell? Explain. _________________________________________________ ________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
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