All Eyes on Math

Linear Relations Unit Review

2008-03-05T16:34:00.005-06:00

OK... I changed my mind. Your unit test will be on Monday. If you're finished recording your voice on Voicethread and you've made your 3 comments, take some time to review the topics we covered this unit. You can also use these sites to study over the weekend!

Topic #1: Translating Equations

Tutorial

Topic#2: Solving Equations

Tutorial

Solving using Addition and Subtraction (x+3=10): Practice and/or Play
Solving using Division (2x=16): Practice and/or Play
Solving using Addition and Division (3x+3=24): Practice and/or Play

Demo of using Algetiles to solve
SlideShare demo of algetiles

Using applets for balancing equations:
Includes Variables on both sides.
Includes Fractions and brackets.

Topic #3: Word Problems

Try the questions posted in Voicethread for yourself!

Good luck!

Word Problems Task Part 2: Comments

2008-03-05T16:04:00.003-06:00

Good morning again! Thank you for your patience and cooperation yesterday with the technical difficulties!

This task will be completed in the second half of today's class, after everyone has finished task 1.

Your important task is to comment on your classmates' work. Here's how:

There are 4 problem types. You recorded a presentation about one of the problem types. Now you are responsible to comment on one problem in each of the other problem types (that means 3 comments).
You can do your comments using a microphone (if one is available) or by selecting "type" instead and typing your comment.
Each comment should say three things- something positive, something constructive, and a question.

For example: "Your explanation was really clear about how three more than a number became x+3. It was difficult to know when you were checking your work and when you were solving the problem. A label might have helped. How would your answer change if you used cents instead of dollars?"

DO listen to the person's audio explanation before commenting.
DO read other comments before adding your own.
DO be specific.
DO be constructive instead of insulting.
DO use the pen to highlight what you are referring to.
DO remember that your work is being commented on as well- check back and respond!
DO remember that the whole world can access your comments- you have a large audience!

DON'T just say, "Good job. I liked it."

Suggestions for what to comment on:

organization (how is the problem laid out?)
detail (are all the steps included?)
accuracy (is the answer correct?)
neatness and clarity (can you understand what was written and spoken?)

Once again, have fun! I am expecting that you will be able to solve any of these problems in your test on Friday after completing this exercise.

Word Problems Task Part 1: Using Voicethread

2008-03-05T06:21:00.002-06:00

Your task:

Each group member is to choose one of the problems you solved together. The problems have been organized in the following posts by problem type.
You are to record your voice using Voicethread explaining the problem and how you solved it.

DO start by reading the problem
DO imagine you are explaining this to a younger brother or sister or a parent (don't assume the person listening knows how to solve these problems)
DO speak slowly
DO give as much detail as possible; go through each of the steps
DO use the pen to highlight what you are talking about
DO listen to yourself before you save your work

DON'T just read what you've written

While you are waiting for the microphone, please work on the unit review for your test on Friday.

Have fun! :)

Worksheet Word Problems

2008-03-03T20:35:00.000-06:00

Perimeter Word Problems

2008-03-03T05:54:00.001-06:00

Number Word Problems

2008-03-03T05:52:00.002-06:00

Money Word Problems

2008-03-03T05:50:00.001-06:00

Word Problems

2008-03-03T05:49:00.001-06:00

Testing Voicethread

2008-02-27T17:47:00.002-06:00

Hello grade 9's!

If you push play on the voicethread box below, you will here what I am expecting from you over the next couple of days.

To get started though, you need a voicethread account!

Go to http://voicethread.com
Click on "sign in or register"
Click on "register"
Enter your name (Choose the same name as you did for blogger. Remember, first name only!) and e-mail address and create a password. I would even use the same password that you did for blogger so that you can remember it.

That's it!

In order to be able to post your work, I need your good copies submitted by Friday at 3:30 pm! Please don't be late!

aLisa's scribe

2008-02-14T22:58:00.001-06:00

aLisa's scribe #2

From: alisasaaysRAWR, 3 minutes ago

| View | Upload your own

SlideShare Link

Solving Equations

2008-02-14T22:54:00.001-06:00

Hey what’s up you guys Im the blogger for today and I’ll be showing you how to solve multi step equation by simplifying first before solving.

Okay so in our class today Ms Nicholson taught us how to solve equations that need to be simplified first to get the answer. Here’s an example:

EX: 2(x + 1) = 4
Okay so to solve this we have to simplify both sides first so:
2(x + 1) = 4
= 2x + 2 = 4 now it’s already simplified now we can start finding the value
of x , to do that we have to get the x all by itself so:
= 2x + 2 - 2 = 4 – 2 and since this is an EQUATION, the RULE is: what ever you do on
The other side you do to the other side so that it will remain balanced.
= 2x = 2 Now that the x is all by itself we have to divide both sides by the number
coefficient of x:
= 2x/2 = 4- 2
after we divided both sides, we are left with the answer:
x = 2
we can now check if it’s correct:
2(x + 1) = 4
= 2x + 2 = 4
= 2x + 2 – 2 = 4 – 2
= 2(2) = 4
= 4 = 4 and that’s it were done 4 equals 4 right? So that means that the value of x that we have is correct.

That all for my scribe hope you understand it. And oh yeah REMINDER to my
classmates we have an textbook assignment. Its page 91 27-40(odd) and page 98
1-12(odd) 32, 34. and that ends my scribe.

equations using division

2008-02-12T17:17:00.000-06:00

doing this algebraically
Ex.
7y=63(first thing you want to do is to leave the variable in one side alone.)

7y=63
7......7 (you need to divide it now)

y=9

doing it with algebra tiles
Ex.

1) it is 2x=-4
2) regroup the tiles to display the value for one variable
3)the answer is x=2

just look at this site for more info
...

!?!?!

2008-02-01T21:44:00.000-06:00

when is the tessellation project due??

blog

2008-01-11T16:27:00.001-06:00

ROTATION

•

A transformation in which a figure is turned about a point.
There are two kinds of rotation direction:

clockwise

counter clockwise

And there are 4 kinds of rotation:

90°

180°

270°

360°

Translations are totally different from rotations. Translation is to slide a shape, but rotation is to turn.
And it is different from reflection too.
assignment page 307-308 , numbers 1-33(0dd numbers only)

For more info in rotations click this--> !!!
If you want to test your self about rotations click this--> \m/
For more info about translation click this--> ...
If you want to test your self in translation click this--> ***
For more info for reflection click this--> ===
If you want to test your self in reflection click this --> ^^^
-->$$$

aLisa's daily blog

2008-01-10T00:11:00.001-06:00

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HOW TO PLOT REFLECTION

2008-01-09T08:44:00.000-06:00

This morning we did mental math to review also.. Then we wrote a note about " How to plot reflection"

How to plot a reflection

Step 1: Plot the coordinates of the original image
Step 2: Draw the reflection line (given question)
Step 3: Plot each reflected point an equal distance away from the reflection line
Step 4: Join the new points

Ex. Plot the qua drilateral A (1,0) , B (1,2), C ( 3, 3) , D ( 3,-1) reflect ( ABCD) in the y-axis and label the image A'B'C'D'

Ex. Plot the triangle X (-1,3) , Y ( 0,3) Z (-3,-1) Reflect the figure over the horizontal line that passes through (0,-2) label the image X'Y'Z'

Scribe List- January

2008-01-08T16:35:00.000-06:00

Monday, January 7: Charisse
Tuesday, January 8: Paris
Wednesday, January 9: Alisa
Thursday, January 10: Colleen
Friday, January 11: Christian

Monday, January 14: Destiny
Tuesday, January 15: Yassir
Wednesday, January 16: Yassin
Thursday, January 17: Kidus
Friday, January 18: Kevin

Monday, January 21: Rowena
Tuesday, January 22: Stephanie
Wednesday, January 23: Jahmal
Thursday, January 24: Pelo
Friday, January 25: Natasha

January 28 - January 31: EXAM WEEK
Friday, February 1: No Classes

Monday, February 4: Gudu
Tuesday, February 5: Michael
Wednesday, February 6: Justine
Thursday, February 7: Kirstie
Friday, February 8: Brett

2007-12-12T20:42:00.000-06:00

Hi everyone!

I am back with Polynomials, as you know we finish our polynomials Unit
and UNIT TEST on Thursday!!

anyway today in class we write a little bit note about what is going to be on the test and the marks of the test

so our test is going to be out off 55
check out what is going to be in our test on Thursday

Part A= Translating

which looks like this

Ex. 9 less than x
they say that nine is less than x
so we took the word less which means
SUBTRACT
so we will write in this way

= X-9

Ex. Twice a number, decreased by 4

so we choose any letters to represent the
number
for example i choose letter N to represent my number
as you know decreased which means SUBTRACT
so we will represent in this way

=2n-4

Part B= Terminology

This terminology is example of ADDITIVE INVERSE which means opposite

This simple

Ex. what is the additive inverse of 3
which means the opposite of 3
which is -3.
Ex. what is the additive inverse of x

which is -x

Part C= Substitution

Let's look at an example using the Substitution method:

Ex. 3x-4y when x=3 and y=-3

So we know that x=3 and y=-3

now we can solve this equation
by putting 3 into the x and
-3 into the y

3x-4y

=3(3)-4(-3)
=9+12
=21 ans
it is simple very easy!

Ex. 2(3x-4y)-3(2x+2y) when x=2 and y=-2
We start with PEDMAS

=6x-8y-6x-6y
=6x-6x-8y-6y
=-14y
=-14(-2)
=28

Part D= Simplification:
.Add,Subtract,Multiply

simplifying is one of my best part

Ex. simplify by combining like terms.

d+d+d+d+p+p+p+d

we collect the like terms then we add them which will give as

=5d+3p

stop there because they are no more like terms
but remember multiplying polynomials can multiply
with any kind of variables.

Ex. (d-5) - (d+3)

so this question is subtracting polynomials
as we know we change the other side to opposite

= (d-5) - (d+3)
= (d-5) + (-d-3) we change the other side
= d-5-d-3 we took off the brackets
= d-d-5-3 we collect the like terms and solve it
= -8 this is what we found!

it is simple if you try more

let see multiply polynomials

Ex. (-2m^3)(m)

(-2m^3)(m)

=-2m^4 we add the exponent thats why i get m^4

Lets try another one

(2x^2)(-3y)

=-12x^2y

Part E= Word Problem
.Algetiles (subtract)
. Perimeter/Area rectangle
.Find missing side given Perimeter
. Creating dimensions

Lets use this question with algetiles

Ex. (-3x+10) - (-10x-8)

lets try another question

so in this rectangle they give as the length
and the width
so if we want to find the perimeter of this rectangle we add the all side.

P=x+x+5x+5x P=2x+10x P=12x

If they told us to find the are of the
rectangle we multiply

A=L*W

A= x(5x)
A= 5x^2

ANYWAY THIS IS WHAT SHOULD STUDY FOR YOUR TEST

POLYNOMIALS REVIEW

2007-12-10T12:34:00.000-06:00

Hi everyone!!! Today in class we did some nice activities such as the TEST review and jeopardy games and it was great for us who were in the class.

This are some of the activities we did in class.

Check out with this question

1) Add/ subtract

(5x²-3x+5)+(2x²-7x-10)=

5x²-3x+5+2x²-7x-10

=7x²-10x-5

it is simple if you try more!!

The Perimeter of the following triangle is 16x-12. Find the expression of BC.

(6x-3) +(3x-4)

=6x-3+3x-4

=9x-7

P=16x-12

Now we subtract (9x-7) from the Perimeter of the triangle.

Lets try It!!

(16x-12)-(9x-7)

as we know we subracting we change the other side in opposite.
We took off the brackets

=16x-12-9x+7

=16x-9x-12+7

=7x-5

REMEMBER THURSDAY TEST

FOR MORE PRACTICE CHECK OUT THIS

Wednesday December 5th

2007-12-05T22:57:00.000-06:00

I was picked to be the scribe for today in Math
Today in math we learned about Pedmas and Substitution

-When you're given a substitution question, first expand and simplify the polynomial as much as possible and then substitute at the very end.

Ex 1. x=5 and y = -2

2(2x + 3y) + 3(-3x + 2x) - (2x - 2y)
P :2(2x + 3y) + 3(-x) - (2x - 2y) : We only add like terms
E : No exponents
D : No division
M : 4x + 6y + -3x - 2x - 2y
A : -x + 8y
S : No subtraction

Now lets substitute : -x + 8y
= -(5) + 8(-2) : x becomes 5, y becomes -2
= -5 + (-16)
= -21

Other than taking notes on pedmas and Substitution, we got a new worksheet called "Polynomials using substitution" which is worksheet on the stuff we learned that class.

Gr 9 daily blog

2007-12-04T21:02:00.001-06:00

Hello class! I changed my scribe a little this time. Hopefully you find it more understandable and easier to go through (:

View Upload your own

One thing i forgot to mention on my slide is HOMEWORK! complete pg. 63 1, 3, 5, 7, 9, 11, 13, 15, 19, 21 a & b (:

scribe for today

2007-12-03T18:44:00.000-06:00

Hi everybody Im Michael and Im the scribe for today

ok so today in class Ms Nicholson gave us some notes to copy about substitution and evaluating an expression.
here are the notes that she gave us:
*in polynomials if a number is substituted into an expression for the variable, then the expression has a value. This is called "evaluating an expression".

after copying the notes she gave us, she gave us a problem to solve about the notes that we just copied.
Here's the problem: evaluate the following polynomial expression if b = 3
-4b2 + 8b - 5
to solve this problem we have to follow two steps.
step 1 : substitute 3 in for every b. which will give us:
-4(3)2+ 8(3) - 5
step 2 : use PEDMAS to find the value of the expression:
= -4(3)2 + 8(3) - 5
= -4(9) + 8(3) - 5
= -36 + 24 - 5
= -12 - 5
= -17
so the value of this expression is -17,
-17 is the answer for this problem.

after doing that Ms Nicholson asked us to group up so that we can pick the top 3 gifts that we are going to donate to the children in Africa, and the top 3 gifts that we have picked are, warm blankets, mosquito nets and seeds of a coconut tree.

and that ends my scribe for today...... hope that you understand it.

2007-11-28T12:35:00.000-06:00

Hello everyone
Im the scribe thing what ever you call it for today anyways in class today we didn't do a mental math i was so happy about that well what we did do was area how to find it in rectangle and others.
Well also we had to work on mutiplying polynomials it was easy i say, well here are some examples:
(3a)(2b)=6ab
(-2f)(-5f)=1oF2
(4e)(-3e)=-12e
stuff like that we had to do and more but here is what was on the other side of the page:
5(x+3) = 5x+5 . 3 = 5x+15
5(x-3) = 5x-5 . 3 = 5x-15
2(x+6) = 2x+12

Here was someother thing that we had to do
8+3(x+2)
8+3x+6
3x+14
that was a question on the other page that i had to do
I hope this scribe wasn't to weird well bye bye
STEP

Scribe Post

2007-11-21T16:37:00.000-06:00

Hello Christian here for the scribe post.

The first thing we did is mental math while playing BINGO. The winner of the game is Alisa for the second time. The mental math was about Multiplying Polynomials.

ex.

(3x²y²) (6abx²z³)
First step is you multiply the number coefficients = (3)(6)= 24 And then multiply the variables = (x²y²) (abx²z³)= abx³y²z³
put the two together= 24abcx³y²z³

The next thing we did is we went over to our tests about Adding and Subtracting Polynomials.

Then we did question number 16 in the paper that Miss Nicholson gave us about Algebraic Problems about Perimeter.

Ex.

So the first thing you do is add both sides.
-7x²+9
2x²-3
-----------
-5x²+6
Then subtract the answer to the perimeter.
-20x²-10 = -20x²-10
- -5x² +6 =+ 5x² -6
--------------------------------
the answer is -15x² -16

and lastly we had the bag and we put money for donation now we have $66.00 :)

Adding and Subtracting Polynomials

2007-11-19T17:23:00.000-06:00

Hi every one !
i am scribe post today and need to tell you guys what did we do in class

today in class Ms. Nicholson pass to us a bag for the world vision's gift catalogue and we put carpel of dollar that we can put.

Then she give us a quiz of Subtracting Polynomial and adding polynomial

(2(2x)+2x+5) - (2(5x) - 7x +4) first be for we do this. When we subtracted one polynomial from another we add the additive inverse ( opposite) of the polynomial that's being
Subtracted
Example: (2(2x)+2x+5)
(2(-5x) + 7x-4)
=(2(-3x)+9x+1

Adding
Example: (2(3y) - 8y+3) + (2(2y)+8y-9)

(2(3y) - 8y+3)
+ (2(2y)+8y-9)
=(2(5y)-6

Scribe List

2007-11-19T12:30:00.000-06:00

Monday, November 19: Yassir
Tuesday, November 20: Charisse
Wednesday, November 21: Christian
Thursday, November 22: Destiny
Friday, November 23: NO SCHOOL

Monday, November 26: Gudu
Tuesday, November 27: Stephanie
Wednesday, November 28: Samuel
Thursday, November 29: Colleen
Friday, November 30: Kirstie

Monday, December 3: Michael
Tuesday, December 4: Alisa
Wednesday, December 5: Kevin
Thursday, December 6: Brett
Friday, December 7: Rowena

Monday, December 10: Pelo
Tuesday, December 11: Yassin
Wednesday, December 12: Justine
Thursday, December 13: Paris
Friday, December 14: Natasha

Monday, December 17: Kidus
Tuesday, December 18: Jahmal

Christmas Giving

2007-11-18T16:03:00.000-06:00

Hello students!!

On Friday we had a bit of a discussion about two of my favorite quotations:

"We can do no great things only small things with great love" (Mother Teresa).

"Be the change you want to see in the world" (Mahatma Gandhi).

Out of this we agreed that over the next two weeks we're going to pool our funds to buy a gift (or more!) for someone in the world who needs it but can't afford it otherwise.

We are doing this through World Vision's gift catalogue. If you want to start getting some ideas, feel free to check out the gifts on the website for yourself. At the end of the two weeks, we will see how much money we have and vote on which gifts we will purchase.

Remember, your gifts will be given silently into a bag that we will pass around the room at the beginning of every class. This is because we all come from different circumstances and each of us may not be able to contribute the same amount, but we can all give something and every little bit counts. It will be a collective effort. And don't forget, I will match every dollar you contribute, so if you do the math...

Feel free to leave a comment with an idea for your classmates as to how you can save up a few dollars.

Happy giving!

assignment

2007-11-10T17:59:00.001-06:00

can someone please help me with the assignment for math cause i forgot to bring the book i left it in my locker its page 152 number 12-20 please post it don't make it as a comment

Test

2007-11-06T19:41:00.002-06:00

Hi every one!

Today in class we start with Introduction of Polynomial and we answered all of them in class.

For example:

-2c + 10

Numerical coefficient: -2
Variable: c
Constant: 10
classification: binomial
Degree: first degree(even if you don't see exponent of c)

and we get Little trick here! 9t-8

Numerical coefficient: 9
Variable:t
Constant:-8 because negative is for 8 number
Classification:binomial
Degree:is 1 because the exponent of t is one .

Then Ms Nicholson give us test which it's all about introduction of polynomial and translate of mathematical expression. I don't thing so if this test was hard because we have all ready learned about them.

That all we did to today.Oops i forget to tell you guys we have to hand in the like terms and Thursday is day to hand in.If you need a bonus mark to add in your last exam please go to room 69 @ 12:30 on Thursday.

If you want to bring a gift for Christmas child you can bring any thing that you like and give Ms.Necholson.

Polynomials

2007-10-31T17:56:00.002-05:00

Today in class we start with metal math of polynomials as you know we do every morning and some others activities, anyway let's begin.

let's start with this question

1. Arrange term in alphabetical order with Constant last

okay let's write 4c + 7a + 3b as you see this question is mixed up so let's correct this terms
instead of writing 4c + 7a + 3b we write 7a + 3b + 4c.

2. Arrange the terms of each polynomial so that the powers of x are in
ascending order.

so we have this question 6x-3x2y+4-2x8

okay we get the question we start with which of the following has have a larger power. so we see 6x is with out power and -3x2y has a power of 2 , +4 is without variables and power and -2x8 has a power of 8 .
so which of the following has a larger power for i say we will start with -2x8 follow by 3x2y follow by 6x and 4
so we will write in this way -2x8-3x2y+6x+4 that's our answer.

so let's go with adding polynomials.

Look for the opposite terms
egg. -8n+3n+8n
OK lets find the answer lets start with -8n+8n we get 0n and we remain with +3n so our answer will look like this

-8n+3n+8n=3n

if you understand it is time for you to practice
please Click .

Tomorrow post will be Kidus ah! ah !

Miss Nicholson demonstrating blog

2007-10-24T10:17:00.000-05:00

You type in this box whatever you are supposed to.

To make a link to another website, you highlight the word that you're going to attach the link to, math site.

Translating Mathematical Expressions

2007-10-23T21:36:00.001-05:00

Sorry if my post is late because i went to a Filipino language test.
First we did mental math. And then we finished answering the assignment sheet about TRANSLATING MATHEMATICAL EXPRESSIONS like

"Add 7 to the quotient of -9 and 3"
=>(-9/3)+7
=>(-3)+7
=>4"

TRY THIS...
1. THE SUM OF 6 TIMES 9 AND 7
2. THE SUM OF NINE AND 10 TIMES 80
3. THE SQUARE OF 6 DIMINISHED BY THE CUBE OF 2 DIVIDED BY THE SQUARE OF 4-2
4. 10 INCREASED BY THE QUOTIENT OF 7 AND 49
5. THE CUBE OF 6DECREASED BY THE PRODUCT OF 12 AND 20
6. THE SQUARE OF THE DIFFERENCE BETWEEN 20 AND 90
7. 4 LESS THAN 7 TIMES THE SQUARE OF 2
8. 100 TIMES THE SUM OF 4 AND 7
9. 5 DECREASED BY 8
10. 2 MORE THAN THE SUM OF 5 AND THE SQUARE OF 10

Miss Nicholson gave back the unit test that we had last week. And she gave an assignment but I'm not sure what is it i think that we need to write in a sheet of paper all the wrong answers in our Unit test and correct it but if this is wrong please leave a comment and correct me.

Math Blog (Oct 22 2007)

2007-10-23T18:30:00.000-05:00

For class we Worked on Number phrases and word phrases, The questions asked were Questions like, Add -8 to the sum of -20 and 5 or Find the average of -10, -3, 8 and 17.we had to show our work. We also did a test on lose leaf which had questions on Dividing, adding, subtracting, and multiplying integers. we went over the list we had to sort into 4 categories which was a home work assignement.

That was a brief Explanation of what we did in class

Brett

2007-10-22T17:22:00.000-05:00

Multiplying one negative number with a positive number produces a negative answer.

Ex. Simplify (-4) (+5) :

Since multiplication can occur in any order this is the same as (+5) (-4) and would produce an answer of -20.

There for (...) (-4) (+5) = -20

Multiplying two negative number together is more complicated ti understand.
Let's examine the pattern produced by the following to see if we can determine what will happen.

(+3) (-5) = -15
(+2) (-5) = -10
(+1) (-5) = -5
(0) (-5) = 0 Increases by 5
(-1) (-5) = +5
(-2) (-5) = +10
(-3) (-5) = +15

(NEGATIVE) (NEGATIVE) = POSITIVE

When multiplying two negative the result is positive. It is as follows:

-the number themselves multiply as usual, and
-the two negative signs multiply to produce a positive.

Ex. simplify (-3) (-4) :

(-3 ) (-4) = +12

Insummation, when multiplying two numbers with the same sign the result is positive. Wherea, When mutiplying two numbers with opposite signs the result is negative.

(+) (+) = +
(-) (-) = +
(+) (-) = -
(-) (+) = -

Had nothing better to do -_-

2007-10-20T21:14:00.000-05:00

signed numbers
operations with signed numbers

combining terms
I'm working with numbers, question as :

5 + 8 = 13

7 - 4 =3

are straight forward. However if a question such as "6 - 9 =" presents itself we have a problem.

Let's examine this problem in terms of money. What if you had $6.00 and i had to pay out $9.00you would have to go into debt by $3.00. in other words you would still owe $3.00 (after giving up the $6.00 had). We will write this as -$3.00 using a minus in front of the number 3.

There for (...) 6 - 9 = 3

Ex. The following question can be read as :

2 - 6

*i have 2 * *and i owe 6*

combining these, results in owing 4.

There for (...) 2 - 6 = -4

Ex. How could we interpret the following?

-3 + 5 =

ANSWER : i owe 3 and i have 5. The result is I have 2.

There for (...)
-3 + 5 = 2 or +2

Any amount that i have is a whole number or a number with a plus sign in front of it. this is Known as a POSITIVE NUMBER (+)

Similarly, any amount that i owe would be written with a minus sign in front of it. Such a nimber is known as a NEGITIVE NUMBER.

The number zero (0) is a considered to be neither. Each item, whether it be an amount we have (positve value) or an amout we owe (negitive value) is called a Term. these question are all about Combining terms to come up with the end result.

Once again i had nothing better to do =/

daily blog

2007-10-19T21:08:00.000-05:00

Hi everybody im michael and im the blogger for today so wish me luck because im not good at doing blogs but I'll do my best.

I'll start, today in class all of us did the test that alisa mentioned in her blog it was all about what we have learned so far in class, the test wasn't very hard because it was only about INTEGERS so I didn't have to much a hard time doing it, any way after we finished doing the test Ms. Nicholson gave us extra work to do so we dont get bored or start making noise.

here's the extra work the she made us to do: SORT THE FOLLOWING WORDS INTO FOUR CATEGORIES IN YOUR SHEET, the categories are [+,-,x, and /], and also we have to use the integers 6 and -3 to write an example of each.

THE WORDS ARE: Difference between, Sum,
Divided by, Multiplied by,
Add, Subtract,
Minus, Product,
Times, Less than,
Increased by, Multiply,
Divide, Quotient,
Plus, More than,
Take away,

E.G. + -
The sum of 6 and -3 is 3 The difference between 6 and -3 is 9

x /
6 multiplied by -3 is -18 6 divided by -3 is -2

Did you get my example? well I hope you understanded it, bye everybody this ends my blog for the day, thanks for reading my blog. The next person to do the blog will be Brett.

Gr. 9 Math

2007-10-18T18:28:00.000-05:00

Today in class we went over our Review worksheets on integers before our end of the unit test which is today. I will be posting up the answers for the worksheet for those who did not get the answers, or want to check over to see if they did they're work correct.

Before i post the answers, you should remember:

Rules for Multipying & Dividing:
( - ) x ( + )= ( - )
( - ) x ( - )= ( + )
( + ) x ( - )= ( - )
( + ) x ( + )= ( + )
The Order for PEDMAS:

PARENTHESIS
EXPONENTS
DECIMALS & MULTIPLYING
ADDING & SUBTRACTING

which ever comes first, you do.

Starting for left to right

ex. (9-4) + 4 x 6

(9-4) + 4 x 6
5 + 4 x 6
5 + 24
= 29

A number line if you need help on knowing the smaller numbers and larger numbers.

Answers to Review Worksheet on Integers:

1. Highlight the numbers that represent integers
1/2, .3333 , (-4 ), 32, +1/4, 50%, +18

2. State the opposite

-7 +7 -2 +2 +8 -8 -3 +3 +22 -22

3. Complete the chart

(if you do not understand, check the number line at the beginning to help you )

4. Circle the larger integer in each pair.

5. State the Integer described by each of the following:
a) 22°C above zero : +22
b) 9°C below zero: -9
c) 234m below sea level: -234
d) A loss of 13 points: -13
e) A profit of $1216: +1216
f) 8 floors up: +8
g) 12 under par: -12

6. explain and show how you got the answer for +4 + (-3)

- State with 4 positives and 3 negatives
- ■ + ■ = 0 [ cancel zero models]
- Positive 1 is left over
- +4 + (-3) = +1

7. Write out the steps to solve (-16) - (-4)
Step 1: Change subtracting sign to adding
Step 2: Change -4 into +4
Step 3: Add -16 + (-4)
Step 4: take the signs from the larger digits. In this case its (-)
Step 5: Subtract -16 - 4 = -12
The answer for -16 - 4 = -12

8. Complete the table.

9. Use PEDMAS to solve the following:

Ms. Nicholson taught us a new clever trick.
Pick any number: (ex. 2)
Double it: ( 2x2 = 4)
add ten : (2+10 = 12)
subtract your original number: (12 - 2 = 10)
add fourteen: (10 + 14 = 24)
and divide by 6: (24/6=4)

your and answer should alway be four whether you picked a different number, it doesn't matter, it'll always be four.

That was all we did in class today. *REMEMBER, TEST TODAY. Sorry for posting this really late. If there's any questions, or you see i made an error, please inform me, or comment your questions. I'm going to bed now, bye (:

The next blogger will be michael (: good luck.

2007-10-17T19:46:00.000-05:00

hello fellow class mates
Today in math class we didnt have much to do well we had a math review on our test that is going to be on friday instead of thursday the stuff we had to do was pretty easy but if you didn't get most of this stuff then you should look back at your notes that we had form when ms armstrong was here and then maybe you will get it. I do have some examples that i remember

(8)/(5)=
(9)+(-7)=
(7)-(14)=

Stuff like that well c you all tomorrow if some of you are at school anyways bye!!!

Stephanie

2007-10-17T17:51:00.000-05:00

I know I'm not the scribe for the class but i just didn't have any thing better to do.
So to day in class we did a Review Worksheet Unit Integers and i didn't get it until i got home.
Well heres some Examples - (42 / -7) - 6
-6 - 6 = 0

Grade 9 Math : Daily Blog

2007-10-16T20:49:00.000-05:00

Today in class we talked about PEDMAS (Parenthesis, Exponents, Divisions, Multiplication, Addition, Subtraction)

Example :

(-5)2 - 10 / 5 + 4 x 10

+25 - 10 / 5 + 4 x 10

+25- 2 + 4 x 10

+25 - 2 + 40

+23 + 40

63

We also practiced PEDMAS using cards. The 4 green cards were Exponents, Division, Multiplication, Addition and Subtraction and 4 number cards. We mixed the them to make equations so we can practice PEDMAS.

The Pi Challenge

2007-10-15T17:37:00.000-05:00

Check out this video on pi.

PEDMAS Practice

2007-10-15T09:36:00.000-05:00

Good morning!

I just finished correcting the sheets of the students who handed them in on Thursday. First, remember to SHOW YOUR WORK! If you get the incorrect answer and don't show how you arrived there, then we can't diagnose the problem so you don't make the same mistake again! At this stage, underlining the step you are working on is also very helpful.

For the students who did show their work, I can see that you are following the correct order of operations (PEDMAS)- WONDERFUL!- but arithmetic errors are leading you down the wrong road. Use your flip booklets to review what to do when adding, subtracting, multiplying and dividing integers.

I found some websites in Ms. Armstrong's binder that can give you extra practice:

http://www.aaamath.com/pro73c-order-of-operations.html This site allows you to test yourself on the computer.
http://www.amby.com/educate/ord-op/ This site has an explanation and a practice test.
http://www.mathgoodies.com/lessons/vol7/order_operations.html This site has an explanation and a practice test.
http://www.dositey.com/addsub/Mystery11.htm This site has you work through the puzzle to find a hidden picture.
http://www.quia.com/cm/16544.html This site has you match the question to the answer.

That's all for now! Happy number crunching. :)

2007-10-14T13:23:00.001-05:00

Parentheses - Brackets

Exponents - (5)(5)(5) = 5³

Division - 6 / 3 = 2
Multiplication (first come, first served) - 6 + 6 + 6 = 18 - 6 x 3 = 18

Addition -

1 + 1 = 2

(verbally, "one plus one equals two")
Subtraction (first come, first served) 1 - 1 = 0 ( verbally, "one minus one equals zero")

2007-10-11T12:42:00.000-05:00

In class we took notes:

Order of Operations:

-Anthmetic operations(x, ,-,+) must be solved in a particular order. We can use the acronym "PEDMAS" to help remeber the order. Brackets/Parenthesis hold an operation together and bracket holed a number.
Rules:-Evalute expressions within parenthesis first (brackets) P ( )
-Evaluate expressions with exponents next
-Multiply and Divide from left to right in orded of what comes first M/D
-Add and Subtract from left to right in order of what comes first A/D

Here are some examples of what you have to do.
3 2
Ex. 2+8x2² +3
8+8x4+3
8+32+3
40+3=
43

math music

2007-10-09T17:43:00.002-05:00

http://www.youtube.com/watch?v=a81YvrV7Vv8

Grade 9 Math : Daily Blog

2007-10-09T17:08:00.000-05:00

Sorry if this isn't the best blog because it's the first one of this year and it's the FIRST one I'VE ever done too.

Well, I think I should start talking about what happened today in class because that's what I'm supposed to be talking about but I don't seem to be doing that.

Okay, well, here it goes! =)

Well, today in class, we talked about who would be the first people to do the blog and what to do.
After that, we corrected the two worksheets we got the week before. One was on multiplying integers and the other was on dividing integers.
While we were correcting, Ms. Armstrong did a few sample questions. She gave a brief mesage about number patterns. It wasn't really something we should put in our binders or take notes about it but I think we might be talking about number patterns later on in the year.
Anywho, she explained the difference between brackets and parenthesis. Here are the notes about brackets and parenthesis :

* Brackets hold an integer together
example : (9)(-3) which means 9 x -3 ( nine times negative three )
* Parenthesis hold an operation inside
example : (9-3) which means 9 - 3 ( nine minus three )
* If there is no space in between variables/numbers, it means multiplication
example : (9x)(-3) ( nine times "x" times negative 3 )

We will be working more on brackets later on in the year. ( Hint Hint ) These notes down here about multiplying negative and positive integers :

* If you have an even number of negative integers, the answer will have a positive sign

example : (-5) (-3) (-7) (+1) (-3) = even number of negatives

ANSWER : +315

* If you have an odd number of negative integers, the answer will have a negative sign

example : (-5) (+3) (-7) (+1) (-3) = odd number of negatives

ANSWER : -315

That's basically all we talked about in class today. Hope that that was informative enough.
The next person who will be doing the Daily Blog for tomorrow will be Paris.

Assignment1

2007-10-08T23:38:00.000-05:00

QUESTIONS TO ANSWER:
1) What is the TITLE of the post and who was the author?
The title of the post is "Midpoint of a Segment" and the author is Meagan

2) What is the math topic that the person was writing about?
The midpoint of a segment.

3) What reasons were given for inducting this post into the hall of fame?
Excellent job annotating class notes. Use of diagrams and colour adds to the readers comprehension.

4) What did you think of the persons work?
I think this persons work was very descriptive. This person used many pictures for examples and had a short descriptions in each of the pictures, which I think is very helpful. The persons explanations and instructions are clear and easy to understand. I think this persons work is very good.

Assignment 1

2007-10-08T16:48:00.000-05:00

1. What is the title of the post and who was the author?
TITLE: Percentages.
Author: Thyra-May.

2. What is the math topic that the person writing about?

The topic that the student was talking about was Percentages.

3. What reason were given for inducing this post in to the hall of fame?
Made readers visualize step by step process of percentages using thumb stacks. Tremendous detail in her post.

4. What did you thing of the person work?
It was amazing blog and her work was step by step even i understand

Math Made Simple - Rules for Integers

2007-10-07T10:00:00.001-05:00

QUESTIONS TO ANSWER

2007-10-05T00:04:00.001-05:00

sorry everyone, I wasn't able to blog at this TIME because my Internet wasn't working. But we had someone come over tonight &fix it so, AAA!:)

So far during lats at this QUESTIONS TO ANSWER

1) What is the TITLE of the post and who was the author?
The Title of this post was midpoint of a segment.And author was Meagan

2) What is the math topic that the person was writing about?
the math topic was Midpoint of a segment

3) What reasons were given for inducting this post into the hall of fame?
this is very impressive work. He did a great job.People said it's excellent job annotating class notes.

4) What did you think of the persons work?
i say it's a very! nice job.This person added a lot of Example on Midpoint segment,added a wonderful colors was cool.I think i understand a lot of them.It's was nice to read this.but other of them i didn't understand.i like to voted this guy to the hall of fame.

from Yassir bye i want to sleep right know

assignment1

2007-10-04T22:41:00.000-05:00

QUESTIONS TO ANSWER:
1) What is the TITLE of the post and who was the author?
The title is SCRIBE POST, IDENTITIES. The author is Daureen N.
2) What is the math topic that the person was writing about?
The topic was RATIONAL and IRRATOINAL NUMBERS.
3) What reasons were given for inducting this post into the hall of fame?
I think the reason that it was introduced into the HALL OF FAME is because it's very clear and understandable.
4) What did you think of the persons work?
I think that she did great in explaining the RATIONAL and IRRATONAL numbers and that it really deserves to be in the hall of fame.

Hall of fame assignment

2007-10-04T21:15:00.000-05:00

In this assignment I had to choose the best hall of fame post in the hall of fame list. So the one I chose was "square root and perfect squares", By Julie Rose The post was about square roots and perfect squares. I chose this one because She uses very nice pictures it is well organized it is an easy post to understand, so if I wanted to learn perfect squares or square root I would be able to. This post was entered into the hall of fame for its detail and organization, and some other things. So, i think that was the best post in the hall of fame.

-POST BY BRETT

Assignment 1

2007-10-04T19:31:00.000-05:00

QUESTIONS TO ANSWER:

1) What is the TITLE of the post and who was the author?

The title of the post is "Can you say... Patterns are IMPORTANT??" and the author is Lisa.

2) What is the math topic that the person was writing about?

THe person wrote about Number Patterns and what they talked about in class.

3) What reasons were given for inducting this post into the hall of fame?

She did a good job and it was very informative. People said that it was "in depth with what happened in the class."

4) What did you think of the persons work?

She did a great job and she used a good amount of color. There were good diagrams and she showed what the teacher had put on the board. I think that she did a really good job. She is definately POST HALL OF FAME WORTHY =)

Assignment 1

2007-10-04T19:09:00.000-05:00

Answers to Assignment 1:

1) What is the title of the post and who was the author?
The title is 6th Scribe Post and the author was Manny.
2) What is the math topic that the person was writing about?
Circular Functions.
3) What reasons were given for inducting this post into the hall of fame?
Meaningful use of colour. Well laid out on page. Annotated graphics help to explain concepts illustrated.
4) What did you think of the persons work?
The way she used the colors to show which were the answers and questions was very clever, it's organized wonderfully so the one viewing the post would know which was which. The use of images are also helpful.

assignment 1

2007-10-04T18:57:00.000-05:00

Answering questions to assignment 1

1. What is the title of the post and who was the author?

The title of the post is Exponentials & Logarithms --a trick for students; a treat for teachers by Jhoann.

2. What is the math topic that the person was writing about?

The topic the student was talking about was Exponentials & Logarithms. This student was finding the area of triangle ABC.

3. What reasons were given for inducting this post into the hall of fame?

Amazing detail and effort. Colour Illustrations, clear explanations and detail. Obvious that student invests a lot of hard work and time.

4. What did you think of the persons work

I say it was very well done! This person added a lot of information on solving the questions, added a lot of great diagrams, and having different colours was a very excellent touch to the persons post. Even though i do NOT understad any of the math the person was talking about, It was very nice to read over and look at. I would've voted this person to the hall of fame also. Kudos to their hard work.

Assignment 1

2007-10-04T17:20:00.001-05:00

Intro to circular function.
Author : mr jeff.
Reasons:Meaningful use of colour and graphics help to illusrate text.
I bet that person worked very hard . I can Tell they put a lot of time init because their is lorst information and i like the use of color and all the pictures. There is also at the bottom of the post words that run off the page and run back around leave from left and coming from the right , i thought that was nice. I also like how they coordinate the colored lettering and they pictures.

assignement 1

2007-10-04T17:20:00.000-05:00

QUESTIONS TO ANSWER .

1) What is the Title of the post and who was the auhor?
TITLE- scribe #1!? and the Author was Jeff.
2)What is the math topic that the person writing about?
Intro to circular function.
3)What reasons were given for inducing this post into the hall of fame?
Great depth of detail. Meaningful use of color and graphics help to illustrate text.
4)What did you think of the person's work?
I bet (think) that person worked hard. I can tell they put a lot of time in it because their lorst of information And I like the use of colo and all the pictures. There is also at the bottom of the post words that run off the page and run back around leave from the left and coming from the right . I thought that was cool. I also like how they coordinate the colored and letterring and they pictures.

assignment 1

2007-10-04T16:50:00.000-05:00

QUESTIONS TO ANSWER:

1) What is the TITLE of the post and who was the author?
the title of the post is multiplying and dividing polynomials and the author was Jeff R.

2) What is the math topic that the person was writing about?
MULTIPLYING AND DIVIDING POLYNOMIALS

3) What reasons were given for inducting this post into the hall of fame?
they picked this as part of the hall of fame because it was made nicely and it was very easy to understand

4) What did you think of the persons work?
it was nicely done i like it and i understand how to multiply and divide polynomials.

Assignement1

2007-10-04T15:59:00.000-05:00

QUESTIONS TO ANSWER:

1) What is the TITLE of the post and who was the author?
Title-Scribe #1!?
Author-Jefferson
2) What is the math topic that the person was writing about?
Intro to circular function
3) What reasons were given for inducting this post into the hall of fame?
Great depth of detail. Meaningful use of colour and graphics help to illustrate text.
4) What did you think of the persons work?
I think that this person worked hard. I can tell they put a lot of time in it because their is lots of information and I like the use of color and all the pictures. There is also at the bottom of the post words that run off the page and run back around leave from the left and coming from the right I thought that was cool. I also like how they coordinated the colored lettering and they pictures.

Multiplying and Dividing Integers

2007-10-04T10:25:00.000-05:00

When multiplying or dividing integers with the same sign we get a positive answer.
When multiplying or dividing integers with different signs we get a negative answer.

Check out this quiz to see how you're doing.

Fractions and Percents - AAARRGH!

2007-09-11T13:58:00.000-05:00

Hi Jellybeans,
I've found some videos, games, and quizzes to help review concepts about fractions and percents.
Try them out to refresh your memory.

Adding and Subtracting Fractions
Multiplying and Dividing Fractions
Fresh Baked Fractions - Try identifying the equivalent fractions.
Mystery Picture - A Fraction game
20 different fraction games - Take your pick
Percent Tip - This game has 4 levels. Try working your way up.
Need Extra Help - This site gives you instruction on how to convert between fractions, decimals, and percents.
Memory Game - Only this game has you comparing fractions, decimals, and percents.
Quiz yourself

Great Game - DaVinci's Secret

2007-09-10T19:49:00.001-05:00

Hey Jellybeans,
Before we get into a lot of math content this year I want to share one of my favorite games with you. It's called DaVinci's Secret and it's found on Yahoo games. In order to play, you will need to download it onto your computer. The first 60 minutes is free. This should be enough time to learn how to play. After that, it will only give you 5 minutes at a time to play before it cuts out. DON'T pay for the game. This works out perfectly because it forces you to plan your strategy and try to execute it in the 5 minutes. BE PERSISTENT, don't give up just because you can't finish a level on the first try. There was one level that took me between 30-40 tries before I completed it. I'm on level 63 right now. Have fun!!
Ms. Armstrong

An Internet Safety Reminder

2006-12-04T18:19:00.000-06:00

Hey Jellybeans,

Please use only your first name when working on an internet site. There are millions of people from around the world who can access this information. While most of them are reading because they are interested in the content, we can never be too careful. There are harmful, lurking, predators that use the internet to lure young people into a false sense of security. Remember the criteria that we spoke of in class for using the internet... be responsible, be kind, be safe.

See you tomorrow,
Ms. Armstrong

Your first mission as Agent Jellybean

2006-10-03T12:09:00.000-05:00

Hello there Agent Jellybean.
Your first mission is this...
1) Click on the link SCRIBE POST HALL OF FAME (you will find it on the right side of the screen).
2) Choose any 1 of the posts that has been inducted into the hall of fame and answer the following questions in the comment area of this post. (Click on 'comments' below). Each HALL OF FAME POST can only be used once, so make sure that no one has commented on it before you (or yours will not count).

QUESTIONS TO ANSWER:
1) What is the TITLE of the post and who was the author?
2) What is the math topic that the person was writing about?
3) What reasons were given for inducting this post into the hall of fame?
4) What did you think of the persons work?

Don't forget to be respectful of people's work and the safety issues that we discussed in class. In order to give you credit for doing this homework assignment you must use your real first name (NO last name).

Have fun... and welcome to YOUR blog.
Ms. Armstrong

Start Testing

2006-08-29T21:38:00.000-05:00

Time to change the template