## Tuesday, March 17, 2009

### Scribepost for March 16

Area

Area- is the number of square units contained in a two dimensional region.

Parallelogram- a four sided figure with opposite sides parallel and equal in length.

Base- side of a two dimensional figure common symbol is b.

Height- the perpendicular distance from the base to the opposite side common symbol is h.

Perpendicular- a line that meet another line at a right or 90 angle.

Remember:

Homework is to find the area of the following figures.

I choose Cole for the next scribepost.

## Monday, March 16, 2009

### Scribepost for March 16, 2009

Today as usual we did number of the day.
Today's number is 2374.198.
We also review probability.

There are two ways that u could see all the outcomes
One way you could show all the outcomes is to draw a tree diagram.

This is a tree diagram.

This tree diagram explains what the coin rolled.

The other way you could show it is a table chart.

I believe that we didn't have homework.

I pick Damian for the next scribepost.

Sorry if it was short.

## Sunday, March 15, 2009

### Scribepost for March 12,2009

I am going to do the Scribe post for Thursday because Caitlin was sick.

On Thursday we started by doing what we always start with.Number Of The Day
Thursday's number was 1247.936

1.True 6. A 11.C 16.D 2.False 7. D 12.C 3.False 8.D 13.B 4.False 9.D 14.A 5.True 10.B 15.C

17.Favourable Outcome
18.Outcome
19.Tree Diagram and Probability Chart or Table
20.One Half
21.Tree Diagram
22. 1/25
23.Independent events

24.B 29.
25.A
26.D
27.E 30.They have an equal amount of winning.
28.C

After we did the test we copied some notes about probability.
This is what they said(or at least what I wrote. (= ).
More Probability
P(Rolling Prime Number) with a regular die.

P(Rolling Prime Number)=
Favourable outcome
---------------------------
Possible outcome

P(Rolling Prime Number)= 3/6 we always have to simplify so 3/6 is 1/2, 50% and,1:2

Find the probability of rolling two sixes in a row with a reg
ular die.
You need to use a probability tree to solve this problem.

P(two sixes in a row)=
favourable outcome
----------------------------

possible outcome _
P(
two sixes in a row)=1/36,2.78, 1:36

Independent Event- The outcome of one event has no effect on the outcome of another event.

Sample Space- All possible outcomes of an experiment.

Tree Diagram-
Diagram used to organize outcomes

Find The possibility of landing a
coin on HEADS, and rolling an ODD number.

favourable outcome
----------------------------

possible outcome

I know that the font is too big and messed up but i don't know how to fix it.So im just going to post it like this.

For the next Scribe Post i pick Jex M. But if someone didn't do the Scribe Post yet you should tell me.

## Wednesday, March 11, 2009

### Scribe post for March 10, 2009

Today in class we did more PROBABILITY.

Here are some of the exercises that we did during class:

a) Choose a student from grade 7 and choose a student from grade 8.

Are these choices DEPENDANTor INDEPENDENT on each other?
They are independent. Because the person you choose from grade 7 has no effect on the person you choose from grade 8. Therefore they are independent.

b) Choose one marble from a bag, then without replacing it, choose a second marble from the same bag.

Are these choices dependant or independent on each other? They are dependant because once you have chosen one marble from the bag, you have one less marble to chose from when you pick your second one. They have an effect on each other, therefore they dependant.

When figuring out if the choices you are making are dependant or independent on each other, the question you should as yourself is:DOES THE FIRST THING I DO, CHANGE THE SECOND THING I DO?

If the answer is YES, that means that they are DEPENDANT.
If the answer is NO, that means that they are INDEPENDENT.

HOMEWORK:
Make sure you know how to do a tree diagram, and a chart to find the sample space of probability problems.

Make sure that number of the day is finished: today's number was 7835.621

Don't forget TLE tomorrow!

(Please leave your comments and don't be afraid to point out any mistakes I have made so that next time I can do better!)

I choose Caitlin for the next scribepost. :)

## Monday, March 9, 2009

### scribepost for march 9 2009

Today in class. We did more probability.
We did some qeustions and notes about probablity.

Notes:

Sample space is the set of all possible outcomes of a random proccess.

Independent events is the outcomeof one event has no effect on the outcome
of another event.

Tree diagram is adiagram used to organized outcome.
-Contains a branch for each possible outcome of an event.

Questions:

What si the probablity of rolling a prime number with a regular die

find the probability of rolling two sixes in a row with a regular die.

Probability of landing a coin on heads and rolling an odd number.

ENJOY!

HOPE YOU LIKE IT............I PICK LAURA TO DO THE NEXT SCRIBEPOST.

## Thursday, March 5, 2009

### Scribe post for march 5, 2009

This math class we did number of the day, probability test , and Mr. Isfeld taught us more about probability

This are the questions of the math test and their answers.

True/False

1. There is an equal probability of picking a red card or picking a black card from a full deck of 52 cards. Answer: true.

2. Using a six-sided die, the probability of rolling an even number is 1:3. Answer: false.

3. Using a six sided die the probability of rolling a 5 or a 6 is 1:2. Answer: false.

4. If there are fewer "favourable outcomes" the probability increases. Answer: false.

5. The formula for determining probability is = all outcomes over favourable outcomes Answer: false.

Multiple Choice

6. The probability that an event happens is 4:12 what is the probability that the event will not happen. Answer: 8:12.

7. What is the probability of drawing a red face card ( i.e., king, queen, or jack ) from a full deck of playing cards?. Answer: 6:52.

8. If you spin this spinner 30 times, how many times might you expect it to land on red?

9. There are 14 marbles in a bag: 4 red, 4 orange, 5 green, and 1 blue. You take out one marble out of the bag. What is the probability of getting a red or a blue marble? Answer: 5: 14.

10. Each letter of the word PROBABILITY is written on a separate card and placed in a bag. Fareshta draws one card from the bag what is the probability of her drawing a B? Answer: 2:11.

11. A _________ is a successful result in a probability experiment. Answer: favourable outcome

12. The expression "50-50 chance" means a probability of _______ percent. Answer: 50%.

This is an example of probability which Mr Isfeld taught us more about a while ago.

What is the probability of hitting heads while flipping a coin and rolling 3 on a normal six sided die.

probability tree/diagram.

___________________
possible outcomes
= 1: 12.

I pick Owen to do the next scribe post.

## Wednesday, March 4, 2009

### Scribe Post, March 4, 2009

Today in Math, we did Number Of The Day, as usual. The Number of the Day is 7791.692. We also continue doing Probability.

Probability continued

Outcome means one possible result of a probability experiment.

Favourable outcome means a succesful result in a probability experiment.

Examples:

The tiles S, N, O, and W are placed in a bag. What is the probability of drawing a letter W from the bag?
Another way to write this question is P(W).

1. P(W) = favourable outcomes
over
possible outcomes

P(W) = 1/4

If they ask you in a sentence you must answer in a sentene too.
The probability of drawing a W is 1/4, 25%, or 1:4.

2. P(S or O) = favourable outcomes
over
possible outcomes

P(S or O) = 2/4

P(S or O)= 1/2

P(S or O) =1/2, 25%, or 1:2

Homework:

The letters M, O, U, N, T, A, I, N are in a bag.

A. Probability of drawing a letter N

B. P(consenants)

C. P(letter)

I pick Charlie to do the next scribe post.

## Monday, March 2, 2009

### Scribe Post, March 2, 2009

Today in Math, we did "Number Of The Day" as usual. Today's Number of the Day is 9876.123.

Today we're in a new unit. Our next unit is called "Probability". Probability is the likelihood or chance of an event occurring.

1. Favourable Outcomes means what we want to happen.

Possible Outcomes means what might happen.

Probability can be expressed as a Ratio, Fraction, or Percent.

Example: Ratio Farction Percent
1:2 1/3 40%

More Types of Probability:

Earth reaching Absolute zero! This is an example of Impossible Outcome or event.

Impossible Outcome mean is when you are sure that event is not gonna happen.

People will always watch television whenever they're bored. This is an example of Certain Outcome or event.

We might find aliens in the future! If your Not sure of something.

Homework:

Put a letter on top of the number line where you think it would go.

What is the probability...

A. ...flipping a coin and landing on heads?

B. ...with 1 normal six sided die, you roll an 8?

C. ...a bag contains 8 red markers and you reach into the bag and pull out 1 red marker?

D. You spin a spinner with four equal sections marked chocolate, fruit, yogurt and ice cream. What is the probability of the pointer stopping on the fruit?

E. A bag contains letters, A, B, C, D, E, F, G, H. What is the probability that you can pull out the letter H?

F. A bag has 3 gold marbles and 1 silver marble. What is the probability that you can pull out the silver marble?

G. What is the probability that the next baby born in Winnipeg is a boy?

Probability of spinning A.

Probability of spinning a vowel.

Probability of spinning Q.

I think this was homework too.

Discover the value of each shapes. The total weight is 77.

P.S.

Sorry because I didn't do the Friday's blog because I have Tonsilitis.

## Wednesday, February 25, 2009

### scribepost for feb.25

Today in Math we did number of the day as always. The number was 2691.543.

After that mr. Isfeld said to do the math links book pages 398 to 401. It was all algebra eg. are,

1. A + 7 =12
A+7=12

A=5

verfiy
A+7=12
5+7=12
12=12

2. 6d=30
6d/6=30/6
d=5

verfiy

6d=30
6(5)=30
30=30

There are some eg. of algebra but there are alot more in different ways to do it.

In algebra you should always have the = sign in a line and do the verify.

some stuff from the math links are,

#3. d-27=15
d-27+27=15+27
d=42

In the book it said to just do the question or solve it, in the math links book you don't always have to do the verify (you should do it on test or for other stuff).

Don't forget to study for the test.

For next scribe i pick Abby:)

## Tuesday, February 24, 2009

### Scribe Post For February 24 , 2009

Today in math class we started of with number of the day, as usual. The number of the day is 8394.162. Make sure you do number of the day everyday if you do not finish in class.

Then After that Mr.Isfeld told us to do math links textbooks on page 398 to 400. It was mostly about Algebra and mental math. If you do not know already here are some examples of how to do an algebraic question :
Verify
Question : R - 3 = 7 R - 3 = 7
Answer : R - 3 + 3 = 7 10 - 3 = 7
R - 3 + 3 = 7 + 3 7 = 7 R = 10

#2. S + 12 =20
S + 12 - 12 = 20 - 12

S = 18

#5
a) b + 11 = 14

3 + 11 = 14

The solution is b = 3

#6
a) 3 b) 8 c) 4

There is no homework for today.
I pick Kaitlin L. to do the next Scribepost.

## Friday, February 20, 2009

### Scribepost for 02-20-09

So today we corrected our algebra questions.

These are the questions.

1. a+5=11
a+5-5=11-5
a=6

Verify
a+5=11
6+5=11
11=11

2. b-3=7
b-3+3=7+3
b=10

Verify
b-3=7
10-3=7
7=7

3. c/5=25
c/5x5=25x5
c=125

Verify
c/5=25
125/5=25
25=25

4. 6d=30
6d=30/6
d=5

Verify
6d=30
6(5)=30
30=30

5. 7e+8=29
7e+8-8=29-8
7e/7=21/7
e=3

Verify
7e+8=29
7(3)+8=29
21+8=29
29=29

6. 2f-2=8
2f-2+2=8+2
2f/2=10/2
f=5

Verify
2f-2=8
2(5)-2=8
10-2=8
8=8

7. g/3+2=7
g/3+2-2=7-2
g/3=5
g/3x3=5x3
g=15

Verify
g/3+2=7
15/3 +2=7
5+2=7
7=7

8. h/4 -3 =2
h/4+3+3=2+3
h/4=5
h/4x4=5x4
h=20

Verify
h/4-3=2
20/4-3=2
5-3=2
2=2

9. 4x+2+3x=9
7x+2=9
7x+2-2=9-2
7x/7=7/7
x=1

Verify
4x+2+3x=9
4(1)+2+3(1)=9
4+2+3=9
6+3=9
9=9

10. There are two more than twice as many dogs as cats in the vet.
If there are six cats, how many dogs are in the vet? Show all of your work including the equation and verifying and answer in sentence.

6 cats d=dogs
6x2+2=d
12=2=d
14=d

Verify
6x2+2=d
6x2+2=14
12+2=14
14 = 14

There are 14 dogs in the vet.

So this is what we did today.

I pick Kamille for the next scribepost.

## Wednesday, February 18, 2009

### Scribepost for February 19, 2009

Well, today in class we did number of the day. Then we had to do these algabra questions when we were finished with the number of the day. These were those questions with the answers;

1.5+x=16 VERIFY
5+x-5=16-5 5+x=16
x=11 5+11=16
16=16

2.4+x=9 VERIFY
4+x-4=9-4 4+x=9
x=5 4+5=9
5=5

3.x+4=9 VERIFY
x+4-4=9-4 x+4=9
x=5 5+4=9
9=9

4.x/6=3 VERIFY
6X3=18 x/6=3
x=18 18/6=3
3=3

5.4+x=14 VERIFY
4+x-4=14-4 4+x=14
x=10 4+10=14
14=14

6.16=x+10 VERIFY
16-10=x+10-10 16=x+10
6=x 16=6+10
16=16

7.x+5=11 VERIFY
x+5-5=11-5 x+5=11
x=6 6+5=11
11=11

8.6+x=15 VERIFY
6+x-6=15-5 6+x=15
x=9 6+9=15
15=15

9.x/5=5 VERIFY
5x5=25 x/5=5
x=25 25/5=5
5=5

10.10+x=20 VERIFY
10+x-10=20-10 10+x=20
x=10 10+10=20
20=20

11.X/7=7 VERIFY
7x7=49 x/7=7
x=49 49/7=7
7=7

12.3+x=15 VERIFY
3+x-3=15-3 3+x=15
x=12 3+12=15
15=15

13.6x=30 VERIFY
6x/6=x 6x=30
30/6=5 6(5)=30
x=5 30=30

14.x+9=21 VERIFY
x+9-9=21-9 x+9=21
x=12 12+9=21
21=21

15.x+7=7 VERIFY
x+7-7=7-7 x+7=7
x=0 0+7=7
7=7

16.x+4=7 VERIFY
x+4-4=7-4 x+4=7
x=3 3+4=7
7=7

After we did those questions, we did some other questions, harder questions. First Mr. Isfeld wanted to show us how to answer them,

The question looked like this;
59=5x+6x+4

The first step is to, combine the 5x and 6x to get 11x then your question will now look like this,

59=11x+4

Then from there, you subtract 4 from both sides, and now it looks like this,

55=11x

Now this last part is easy;
11x/11=x
55/11=5
So x=5,

Now you verify,
59=5x+6x+4
59=5(5)+6(5)+4
59=25+30+4
59=59

THERE I HOPE YOU UNDERSTOOD WHAT I JUST TAUGHT !
I PICK ELVIN TO DO THE NEXT SCRIBEPOST !

P.S. My computer is different then most, and i didnt have time to change the color on my other computer,
so maybe next time I can make a better scribepost with way more color, and better designs...

## Tuesday, February 17, 2009

### Scribepost for February 17, 2009

Today in class, we started off with number of the day, as usual.
Then we started a balancing act that looked like this:

Then we corrected it in class with Mr. Isfeld. Here are the answers:

After that we did algebra equations.

4m-6-2m+2=m+2

m=6

Verify:

4m-6-2m+2=m+2

4(6)-6-2(6)+2=6+2

24-6-12+2=8

18-12+2=8

6+2=8

8=8

Write and solve the following equation :

Six less than three times a number is twenty four.

3n-6=24

3n-6+6=24+6

3n=30

n=10

Verify:

3n-6=24

3(10)-6=24

30-6=24

24=24

We didn't have any homework today and I choose Noelle for the next scribe post.

## Wednesday, February 11, 2009

### Scribe post for 02/11/09

Today in math we had our term test , we also corrected it . The test was on things we learned this term and some things we learned last term .
We got to sort of correct homework from yesterday .

Which was .. :
Write an equation and solve it, for the following statement . Daylon talked for 45 minutes during class , how many minutes did he work ?

Answer : A + 45 = 55 Verify
A + 45 - 45 = 55 -45 A + 45 = 55
A = 10 10 + 45 = 55
55 = 55

We don't have any homework today .

P.S I'm really really sorry i posted this late !

I pick.. AMMORN for the next scribe post .

## Tuesday, February 10, 2009

### Scribepost 02/10/09

Today in math we did number of the day. The number for today is 7214.586.
We also did our provincial folders. After Mr. Isfeld checked our number of the day. In our provincial folder this is what we did so far Ordering decimals, Comparing Fractions, Ordering Fractions, & more.

This is what we need to study for our test including Order decimals, Algebra, ordering pictures and the newest one that we are studying is about constructing a pattern.

Our Homework

Write an algebraic equation and solve it for the following statement:
Daylon talked for 45 minutes in today's class. How many minutes did he work

Make sure to study for the tomorrow about every single thing that we did.

I pick Shania To do the next Scribepost.

## Monday, February 9, 2009

### Scribe post Feb.9

PATTERNS

In class to day we talked about patterns and the different charts.

In Class we had to draw the Numbers 4 and 5 of the pattern that Mr. isfeld gave us.
after that we had to describe how to draw this as if your telling someone on the phone.
so we had to say like , number 1 is 2 vertical lines connected at the top, number 2 is 3 vertical lines connected by 1 horizontal line at the top. Number 3 is 4 vertical lines with one horizontal line connecting them at the top. Number 4 is 5 vertical lines connected by one horizontal line at the top. The last number 5 is 6 vertical lines connected by one horizontal line and all pictures are level.

In class we also talked about how much vertical lines there would be if it was the 25 pattern.
It ended up being 41 lines for the 25 pattern. When we did that we use two charts, the T chart and the horizontal chart.

On this cart it is like a coordinate grid but it is only quadrant 1. on this cart the y axis gos up by a consistent number so it doesn't just jump around it just gos up by 2. when you have a cart like this you always have a TITLE.

I Don't think we had any home work and i pick JEX >:) for next scribe post.

## Friday, February 6, 2009

### scribe post febuary 6

Today we did provincial folders: Mental mathematics

Today we did mental math, we got a worksheet with several questions that we had to solve in our heads for example:

- 50 x 40 = 2000

We also had to explain the steps we used to get the answer like:

- multiply 50 by 10, 4 times which equals 2000

- 50 x 10 (= 500) x10 (=1000) x10 (=1500) x 10 = 2000

Today's homework is:

Make algebraic equations for addition, subtraction, multiplication and division where the letter or variable equals six then solve and verify your own questions.

- for example -
a / 3 = 2

a /3 x 3 = 2 x 3

a = 6

Verify

a / 3 = 2
6 / 3 = 2
2 = 2

I choose LAYTON for the next scribe post

## Thursday, February 5, 2009

### Scribe Post For Febuary 5, 2009

Today in Math Class, We did a Math Quiz...

Don't worry it's not that bad... I'll be showing you the Math Quiz with the answers.

First we did a balance table

Second, we have to do some Fractions

And last but not least the Algebra Questions!
Question
A+3=9
A+3-3=9-3
A=6
Verfiy
A+3=9
6+3=9
9=9
B-4=2
B-4+4=2+4
B=6
B-4=2
6-4=2
2=2
C ÷ 3 = 7
C ÷ 3 x 3 = 7 x 3
C=21
C÷3=7
21÷3=7
7=7
d/2=18
d /9 = 18/9
d=2
d/9=18
2/9=18
18=18

Hope you Comment On My Post !

Q:How did you found out the answers to those Balance Table?
A:It's pretty much like guess and check

Q:Where can I find a website about Algebra?
A: You can find a website by clicking HERE!

Q:Is there even a video about Algebra?
A:Why yes there is Videos about Algebra on youtube. Here's One for example

Q:Did you had any problems doing this post?
A:The Only Thing I have issues is the Algebra part.

Q:Who are you even picking for the new scribe post?
A:I'll be choosing Brianna for the next scribe post

## Tuesday, February 3, 2009

### Scribe Post Febuary 3

In class we corrected are algebra homework.
(Question )

7+A=10
-7+7+A=10-7
A=3
Verify
A+7=10
3+7=10
10=10

B-4=3
b -4+4=3+4
B-7
Verify
B-4=3
7-4=3
3=3

4-B=3
B-4-4=3-4
Verify
4C=12
4C/4 12/4
Verify
4C=12
4(3)=12
12=12
C4=12
C4/4 12/4
verify
C4=12
(3) 4 =12
12=12

(sorry if it's so short)
I pick Jennifer for the next scribe post.

## Monday, February 2, 2009

### Scribepost for Feburary 2, 2009

In class we did paper work on Provincial Folders we had to order fractions and we had to match fractions . And we did Number of the day in class too .

ordering fractions Eg. 1/2 , 3/4 , 1/3 , 2/5 , 3/5

Least to greatest: 1/3 , 2/5 , 1/2 , 3/5 , 3/4
Greatest to least : 3/4 , 3/5 , 1/2 , 2/5 , 1/3

match fractions Eg. 2/4 , 1/2 , 4/8 , 6/12 , 3/6

And we had algebra homework to do :

A+7+10
7+A=10
b-4=3
4-b=3
4c=12
c4=12
d/2 =7
2/d=7

sorry its not as good, i didnt know what to put on here!!

I pick MONICA for the next scribepost.

## Friday, January 30, 2009

### Scribepost for January 30, 2009

Today we discussed about Algebra.. for example.

1) a+1=2

what's happening at the A?

-it is being added by 1.

The next step is,

you make the equation balanced, to make it balanced you put the opposite number beside itself. like this

a+1-1=2

The next step is..

what you did before you have to do it again beside the answer, like this.

a+1-1=2-1

The next step is..

you now subtract 2 and 1 and now you got the answer for this question

a= 1

now you verify..

a+1=2

1+1=2

2=2

HOPE YOU UNDERSTAND IT.(I TRIED MY BEST)

I PICK CAITLIN FOR THE NEXT SCRIBE.

## Thursday, January 29, 2009

### scribepost for jan.29,2009

Today we do Number of the Day and we had a test on a Balancing Act.

it has to be total of 64 . i put the answers too .

Homework !

6-3x=-6 , 5x/4 + = -7 , x/5 = -3/4

tip:"to solve this problem u must isolate the variables"

PS. make sure you guys do the homework ! .

I pick NADINE for the next scribepost gl (:

### Scribepost 01/28/09

Ordering Fractions

1.Using land marks: A land marks are things everybody should know
eg. let"s meet in polopark (land mark).

I live near the forks (land marks)

strategies

howmanyI have Fractions Land mark what they are

Practice

2.Equevalent Fractions eleven fithteen equal twentytwo thirty and times 2

3. covert to decimals like three fith or thirteen twenty. And dont use the color that you can"t see like yellow sky blue and more

I pick Vanessa to do the next scribe post. :)

## Monday, January 26, 2009

### Scribepost for 01/26/09

Today we did Number of the Day,Provincial and
FolderBalance Puzzle
.

For Balance Puzzle we had to balance find the weight for each shape.

For the Provincial Folder
we had to arrange the fraction in order.

I Pick Amiel to do the next Scribepost.

## Friday, January 23, 2009

### Scribepost for 01/23/09

Decimal numbers such as 3.762 are used in situations which call for more precision than whole numbers provide.

As with whole numbers, a digit in a decimal number has a value which depends on the place of the digit. The places to the left of the decimal point are ones, tens, hundreds, and so on, just as with whole numbers. This table shows the decimal place value for various positions:

Note: That adding extra zeros to the right of the last decimal digit does not change the value of the decimal number.

Im going to show you what we did today but not exactly the same question or number .

Eg. Order these decimal numbers from least to greatest

0.89,0.45,0.27,1.42,1.27

I pick Edmil for the next scribepost.

## Thursday, January 22, 2009

### Scribepost for January 22, 2009

Today we had a test on the Measures of Central Tendency, Fractions, Decimals and as well with Percents.

This is how our test looked like . The answers are on there too.
Homework: Find how much these shapes weigh. Total is 160.

## Tuesday, January 20, 2009

### scribe post for january 20 2009

Range and outlier

Range- positive difference between the largest and smallest values in a data set.

example:3,9,2,4,7,

First step is ordering them
by smallest to largest
2,3,4,7,9
the smallest value and the biggest value
subtract them together.

9-2=7
* therefor-range is seven

Outlier- a value that is much smaller or larger than the other data values.
- a data set may have more than one outlier or zero outliers.

example: *2,9,7,3,4,108

* 21,24,31,29,23,2,91,24,27