HW Due Friday:
page 48 problems 2-26 and 2-27

HW Due Wednesday:
Page 45/46
Problems 2-17, 2-18, 2-21

HW Due Tuesday:
Page 43
Problem 2-7 (Write simplified expressions)
Problem 2-9

IF you were absent today -- You need to see me or talk to someone else who was in class about algebra tiles!!!

Tonight's hw:

Page 29, problems:

1-54,

1-55

1-56

Tonight’s Homework:

Page 17, problems:

1-27

1-28

1-29

Due Wednesday

Homework due Tuesday, 12/8
Page 16 problems 1-22 and 1-25

Wednesday homework
Page 51, #4

Homework due Tuesday Nov. 24
Page 39, #37-40

Negative numbers got me like...what?!

Homework due Monday: page 33 #6,7

Extra Credit: Please bring in a model that helps us understand why subtracting a negative is the same thing as adding a positive!!!

Homework due Wednesday:
#32-36 on page 18

Have a great evening!
Sarah

Homework due Tuesday:
Page 17 #12-29

If you plan on retaking the test you must do so by the end of the week!  Talk to me!

Happy Weekend!
Your homework due Monday is to fill out the pre assessment form for our next unit: Accentuate the Negative
Here's a link for it if you lost yours... https://docs.google.com/document/d/1sWgSEDzveydiotS0eLK6p2qYNaBdhMp7JBkTfi-OBSo/edit?usp=sharing

For homework due Wednesday please finish the back of the worksheet that we did in class today.
You need to clearly label the volumes you calculated for each shape.

Here's the answer:
V(cone): 1959.36
V(cylinder): 5425.92
V(hemisphere): 133.97
V(Pyramid): 147

Total volume of Building:
(V(cylinder) + V(cone)) - (V(pyramid) + V(hemisphere))
7385.28 - 280.97 = 7104.31 ft.^3

Homework due Tomorrow...yes, Tuesday!
Problem #1 on page 52

Volume for a sphere:
4

3

π

r

3

Homework for tonight is to finish problem 3.3 on page 36 in your textbook!
You are finding the Surface Area and the Volume
I will see you all Monday, have fun with Mygnoc tomorrow.

Homework due TUESDAY (yes, we have math tomorrow)
Problems 1-12 on pages 23, 24 in the packet.

We will continue in the packet tomorrow and start in our new textbooks on Wednesday.

Review Problem Answers

- Problem 21 on page 45
<a = 60 deg.
<b = 120 deg.
<d = 60 deg.
<e = 60 deg.
<f = 120 deg.
<g = 120 deg.
<h = 60 deg.

- Problem 29 on page 47
a. A third of a right angle is a third of 90 deg. which = 30 deg.
b. Two times a quarter rotation is two times 90 deg. = 180 deg.
c. Two and a third times a quarter is 180 deg. plus 30 deg. which = 210 deg.

- Problem 35 on page 48
a. 1/6 of 60 min is 10 min
b. 1/6 of 30 min is 5 min
c. 5 min is 1/12 of an hour
d. The minute hand has moved through 1/12 of a complete rotation, 1/12 of 360 deg. = 30 deg.

-Problem 14 on page 65
a. 72 deg. x 5 = 360 deg.
b. If he turns around a regular hexagon, he will go 60 deg. x 6 = 360 deg.
For an octagon, he would go 45 deg. x 8 = 360 deg.
No matter which polygon shape the garden is, he will make a complete 360 deg. turn because he will arrive back at the same vertex facing the same direction from where he started.

- Problem 8 on page 76
The two 3-foot poles and the 5-foot poles will make a tent, but it will be a low tent.  The two 3-foot poles and the 6-foot pole, and the two 3-foot poles and the 7-foot pole will not make a tent, because the sum of any two sides is not greater than their third side.

Test on Monday!

Please due problems 1-5 on page 76 and problems 9-13 on page 77

We will have a test on Shapes and Designs on Monday.  Please make sure you come to math on Monday ready to ask any questions about what we've covered in this short unit.

We covered the following chapters:
2.3 Using an Angle Ruler
2.4 Analyzing Measurement Errors
2.5 Angles and Parallel Lines
3.1 Angle Sums of Regular Polygons
3.2 Angle Sums of ANY polygon
4.1 Building Triangles
4.2 Building Quadrilaterals.

Here's some review questions that can be found in your text book.  I'll post the answers in the next post

- Problem 21 on page 45
- Problem 29 on page 47
- Problem 35 on page 35
- Problem 14 on page 65
- Problem 8 on page 76

Homework due Friday
Starting on page 64 #11, 22, 23

Homework due Wednesday:
#1-9 starting on page 62

Great job coming up with equations to find the angle sum of any regular polygon.
They are...
(N-2)180
(180N)-360
In both, N= number of sides in the polygon

On Wednesday, we'll be able to see visually why these formulas apply.

Homework due Wednesday

Please do problems 15, 16, 17, and 20.  They start on page 43.
If you are LEO, VIOLET, DUNCAN, or SOLAURA please stop in and see Corbin on Tuesday to get an angle ruler.
Refer to page 34 in your textbook to review how to use the angle ruler.

There will be a sub on Wednesday because I will be at a math conference.  good times

I will see you Monday!
Sarah

First Official Test is Friday! WooHOo!

Here are the answers to the review.  Double check them against your answers.  I'm 99% positive that these posted answers are correct...if you disagree post a comment and explain how you solved the problem.  Best of luck! Sarah

Page 1
1. B
2. F
3. C
4. F



Page 2
6. 
Rectangle     Scale Factor    Short Side    Long Side   Perimeter    Area
A                            1                      1                     4                   10          4
B                            3                        3                   12                  30         36
C                           10                     10                    40                100         400
D                             1/2                  1/2                  2                    5            1

7. Length of corresponding sides     and         area

8. a. 2.25 times larger
 b. 1.5



Page 3
2. 1 and 2 are similar -- explanations should include discussion of ratios or scale factor

3. a. side AC = 20
side AB = 16



Page 4
b. 4
c. 1/4
d. 4 times the perimeter
e. 16 times larger

4. a. side TR = 10
b. side XZ - 26
c. angle T = 110 degrees
d. angle z = 20 degrees



Page 5
c. length of meterstick shadow = 1/3 meter

d. height of meterstick = 1m

3.
a. height of the roof of the shed = 2.5 m

b. Distance from center of mirror to great dane = 1/3 m



Page 6 Look closely at the diagram!!!!

4.
a. 64.3 m
b. approx. 107 m
c. 560 m

Tuesday night homework

Just one problem tonight... page 85, #4
Show me them triangles!

Monday night Homework

You must draw diagrams for the following problems and label your drawings!
Page 84, #1-2

Weekend Homework...

Homework due Monday
problems 9-12 starting on page 68
Don't forget!!!! How much does the area grow by in comparison to scale factor?

Homework due Friday

Problem #2 on page 67
For parts b and c you do not need to do 'each pair' you need to just do 'one pair.'
Have a great evening!

Tuesday Night Homework

We'll solidify our understanding of the relationship between scale factors and ratios tomorrow.

Tonight's homework is problems 15-20 on page 70.

How many similar figures can be made this picture of my face?

Scale Factor of 7!

Nice job on answering the exit question today.

Tonight's homework
Complete parts A, B and C from problem 3.3 (this was the classwork we started today0
Do problem 8 on page 48 (the back of your class worksheet has grid paper you can use for this problem)