Scribe Post for November 12, 2008

4:38 PM

(9) Comments

Today we corrected our homework (green booklet pg. 5, 1-12). We spent almost half the class time on correcting it. Here on the scribe post I wouldn't bother with yesterdays homework. Instead I'm going to scribe about the multiplication rules. Then would scribe about Mel's Integer Theorem. Last but not least, the homework for today.

So, here we go. These are the multiplication rules/theorem. With positive and negative integers.
For the first one, the answer is negative. The next question however, you could use the previous question.Then just multiply the rest with the answer from the previous question. That was the pattern Mr. H was looking for. For me I did it a different way. It took longer, especially explaining it during class.

This is another multiplication rule/ theorem. Here it is only including negative integers.

For this theorem I have a formula using exponents. Here it is.





These formulas are just explaining Mel's Integer Theorem.

This is Mel's Integer Theorem.

When you multiply integers and there are an even amount of negative integers the product is positive.

When you multiply integers and there are an odd amount of negative integers the product is always negative.

Today's homework is to prove Mel's Integer Theorem. We are suppose to prove it by answering questions 13- 18, pg 5, green booklet. I would show 13 and 14 to you.



13.

14.

That's all for today people. Don't forget to do your homework.For the next scribe I choose Kristin. Thanks for reading my scribe post and please leave a comment.

angela905

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Scribe Post For Nov 10. 2008

6:01 PM

(10) Comments

Today in class the first thing we did was look over our homework which was done in the blue barn yard.

Then he gave us homework from page 5 in the green booklet. He made us pick 4 questions and each and to be from the coordinate chart and we had to illustrate them. The other eight we just had to write the answer. Here are the 4 I picked.

1) (3)(9)=

Which is from the quadrant 1 and it means 3x9. Here's how I answered it...


This represents 3 groups of 9 which equals to 27.

2) (-12)(3)

This question is from quadrant 2. Here's how I answered it....


This represents 3 group of- 12 getting removed. The answer equals to - 36.

3) (6) (-2)

This question is from quadrant 3. Here's how I answered it...

This shows 6 groups of -2 which equals to -12.

4)(-5)(-4)

This question is from quadrant 4. Here's how I answered it.

This shows -5 groups of -4 getting removed, which equals to +20.

He also gave us homework to find the pattern, what we noticed, to make a rule and anything else for this...
This is how I answered it.

(-)(-)=positive

(-)(-)(-)=negative

(-)(-)(-)(-)=positive

(-)(-)(-)(-)(-)=negative

(+)(-)= negative

(+)(-)(-)=positive

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

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


The rule when multiplying a negative integer with a negative integer the product is always a positive. When multiplying a positive integer with a negative integer the product always equals to a negative.

The patterns I noticed were that the answers were positive then negative and vice versa. Each time you went down they would add a second integer.



For the next scribe I pick Angela. Thanks and please leave a comment. :)

simran 9-05

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The Adventures of captain Integer

5:55 PM

(5) Comments



Once upon a time there was a town that is been cursed by the powerful wizard named addition he is the powerful wizard who wants to destroy captain integers. But before captain Integer was a super hero he was a regular boy who dreamed of being a mathimatician, not just a mathimatician but a super mathimatician. So he went some challenges of his life to be a super mathimatician. I'm going to tell you his story.




When Integer was just a small boy his family was poor and nothing to eat. Integer is walking by down the street while he was walking by he saw a very wonderful school with wonderful students while he was walking there was a wizard(addition is the wizard)watchin his every move so the wizard sent a mathimatician named Cresa, Cresa is a very beutiful girl and smart the wizard sent that girl because the wizard wants to know if Integer was really smart so the girl chalenge him into a math question the question is (-5)+(+5) if you answer this correctly you will be the smartest person in town, said Cresa.so he answerd the question:


so integer answered the question correctly. so Cesa just disappeared. HE knew that he was the smartest person in town he jumped and danced all the way to his home. when he was at home he told his parents how he became the smartest person in town he told hi parents all he did.
the next morning ............he woked up in the morning crying he don't know why so he asked himself if IS SOMETHING TO DO WITH ME OR IST JUST TEARS OF JOY........................
TO BE CONTINUED............LET'S SEE IF THESE MYSTERY IS OVER.

muriel 9-04

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Zeeshan's Measures of Central Tendency

5:12 PM

(8) Comments

Mean




  • Put raw data in ascending order

  • Sum of all data/overall outcome

  • If you have a outlier it can change the mean


Example



1,1,4,6,9,12=33



Median




  • Put raw data into ascending order

  • Find the middle number

  • If there is 2 numbers left add and divide by 2

  • If there is an outlier, median is the best way to find the average



Example


Mode

  • Put raw data in ascending order
  • Most common data
  • You can have more than 1 mode
  • You can have no mode at all

Example

1,1,3,6,8,12

1 is the mode

Range

  • put raw data into ascending order
  • the largest data minus the smallest data


Example

1 , 1 , 6 , 9 ,12

1-12=11 is range

Zeeshan873

Scribe Post For Nov.6 2008

4:56 PM

(8) Comments

Today In class we first had a Quiz on adding and subtracting integers pretty much everything we learned not including multiplying integers. Here was one of the questions on the quiz

(-9-3) - (-21) =

This is how i answered it

(-9-3)-(-21)=

(-12) - (-21)=

But then theres an "uh oh"

(-12) + (+21)= 9

Then We went over the stuff we did yesterday.

(+6)(+2)

Then we figured out this sentence.

" When you multiply a positive integer and a positive integer the product is positive."

After that we went on to the next part, * remember the parts go counterclockwise.

We started with this question






Then For homework we had to write our own question here's mine.



Then We Moved on the the 3rd part We started with this question.





Here is the example how its done with Integer Tiles.





** The arrows mean take away ****


Then We had to make a question for homework here's mine.



The last section

(+3)(-2)=



Then we had to do a question for home work here's mine




For the next scribe i pick Simran. Thanks and Please leave a comment.

shaneille 9-05

Scribe Post for November 5, 2008

4:25 PM

(8) Comments

Today in class, we talked about multiplying integers. We were recorded by the smart board. Mr. Harbeck and Mr. Baché gave us 2 pieces of paper. One was blue and the other one was white. (we only used the blue paper for today.) We had to fold it and make it into eight squares. We opened it up and only kept the 2 flaps folded in. We cut on the middle of the paper so there
would be 4 doors, 2 at the top and 2 at the bottom. At the end, it should look like this:

















On the first flap (++) we opened it and wrote:

(+2)(+3)

When brackets are touching we multiply

Make two groups of 3.














For homework in our (++) Multiplying Integers Sheet (blue) we had to make up a question draw a picture here is what I did:


(+3)(+5)

For next scribe I choose Shaneille. So I guess I am done now. Thanks for reading my scribe post. Please leave a comment!

Zerlina905

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Scribe Post for November 4, 2008

5:33 PM

(5) Comments

Today in class, we went over questions from yesterday's homework, that people had difficulties with. For example, one of those questions were Question #10, in Part Three. People found this question difficult, because there is a subtraction sign by itself in the beginning of the question.

But before I explain how to solve Question #10, I'll go over the steps on how to solve questions that have more than one integer in the brackets.


Okay, now I'll explain how to do Question #10, in Part Three.

After Mr. Harbeck went through all those questions, he taught us how to solve questions that have discountonall square brackets. Those brackets look like these --> [ ]

When solving these kinds of questions, the steps are a little different, compared to the steps on how to solve questions with more than one integer in the brackets.

1. solve inside the round brackets

2. solve inside the square brackets

*when you've finished solving inside the square brackets, you should be left with only one integer*

3. rewrite the question
  • keep the brackets
  • pull down all the order of operation signs

4. get rid of the "uh-oh's" by changing it into an addition sign

5. rewrite the question in standard form

6. solve

These are two examples of questions that have square brackets.

Example #1 -


Example #2 -


For homework, we need to finish Part Four, and Page 12 (AKA last page). Also, you need to pick any 10 questions from Pg. 12, and in your scribbler, rewrite them in standard form.
That's about everything we did in class today.
For tomorrow's scribe, I pick Zerlina.
Thanks for reading my scribe, and please leave a comment (:

melanie905

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