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Stretching and Shrinking

Day Topic Homework IXL √

1 Intro Day Fraction worksheet P.1

2 Inv 1.1 Inv 1/ACE # 1-2, 8-11 P.2

3 Inv 1.2 Inv 1/ACE # 13-17, 19 P.3

4 Start Inv 2.1 Finish Wumps P.4

5 Finish Inv 2.1 and start Inv 2.2 Finish Hats W.1

6 Finish Inv 2.2 Inv 2/ACE # 1, 3, 18, 20-28 W.3

7 Inv 2.3 Inv 2/ACE # 8-9, 11, 13, 30 W.4

8 Inv 3.4 Study for Quiz W.7

9 Quiz Worksheet 1 J.1

10 Start Inv 4.1 Worksheet 2 J.2

11 Finish Inv 4.1 Worksheet 3 J.9

12 Inv 4.2 Worksheet 4

13 Inv 4.3 Worksheet 5

14 Inv 4.4 Worksheet 6

15 Practice Finish Review Packet

16 Review Study for Test

17 Unit Test All IXL assignments due

Tentative Quiz: Thursday 11/3 Tentative Test: Monday 11/21

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Date: _____ Day 1 & 2 Inv 1.1

Write down your thoughts about what it means for two things to be similar. Use the separate lab sheet to complete the activity in the investigation. A) Describe how the original figure and the image are alike and how they are different. Be sure to be thinking about these features:

General shape

Length of line segments

Perimeters

Areas

Angles Do you want to change your ideas about two things being mathematically similar?

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Date: _____ Day 3 Inv 1.2 Corresponding sides Corresponding angles

A) Describe how the original figure and the images are alike and how they are different. Be sure to be thinking about these features:

Length of line segments

Perimeters

Areas

Angles

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B) How do the relationships in the size comparisons relate to the copier size factors used? C) 1) If two figures are similar, what is the same about them and what is different?

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Date: _____ Day 4 & 5 Inv 2.1 Be sure to read Inv 2.1 in your book to answer the questions.

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Date: _____ Day 5 & 6 Inv 2.2

Be sure to read the investigation in your book and answer the questions.

Mug’s Hat

Mug’s Hat Hat 1 Hat 2 Hat 3 Hat 4 Hat 5

Point (x, y) (x + 2, y + 3) (x - 1, y + 4) (x + 2, 3y) (0.5x, 0.5y) (2x, 3y)

A (1, 1)

B (9, 1)

C

D

E

F

G

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Date: ______ Day 7 Inv 2.3

A) 1) Which pairs of rectangles are similar? Explain.

2) Find the areas and perimeters of the similar rectangles.

3) How does the scale factor affect the relationship between the perimeters of the similar rectangles?

4) How does the scale factor affect the relationship between the areas of the similar rectangles?

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B) 1) Which pairs of triangles are similar? Explain.

2) Find the areas and dimensions of the similar triangles.

3) How does the scale factor affect the relationship between the dimensions of the similar triangles?

4) How does the scale factor affect the relationship between the areas of the similar triangles?

C)

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Date: _____ Day 8 Inv 3.4

A) What is the distance across the river from stake 1 to tree 1?

B) What is the relationship between the perimeter of the smaller triangle and the perimeter of the larger triangle.

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D) Does the second group get the same measurement for the width of the river?

***Read pp. 80-81 before class tomorrow.***

Day 9 is a quiz.

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Date: _____ Day 10 & 11 Inv 4.1

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***Read p. 84 before class tomorrow.***

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Date: _____ Day 12 Inv 4.2

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Date: _____ Day 13 Inv 4.3

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Date: _____ Day 14 Inv 4.4

The Shadow Method

A)

B)

C)

D)

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The Mirror Method