Math Blog 817 (2008): NickyD817

Showing posts with label NickyD817. Show all posts

Nicky's Percent Post

Monday, June 1, 2009

Part A

Part B

Posted by NickyD905 at 7:39 PM 1 comments

Algebra Scribe Post for January 21, 2009

Wednesday, January 21, 2009

Hello people! I am the scribe yet again on this fabulous Tuesday! Today in the class of mathematics (math class) we were in Mr. Penner's room because it's day 6 and we do that from now on. Anyway, we went over one question that somebody had problems with. Then we worked on our *trumpet fanfare* Multi-Coloured Book (which is shown below)!

We wrote quite a bit on it so listen carefully. On the bottom left corner (the one that says two step on it) we opened it to the second flap. This is the flap right after the additive type questions (which is blue on all of them I believe). We wrote the following questions on it which must be answered and verified: 7x-2=61 and -8t-23=-15. Next, we went to the exact same flap but this time we went to the other side which is the second flap of the bottom right! On this one we wrote: 2x-4=6 and -3x-1=-7 which must be done in algebra tiles. There is a picture below of what must be done (just click it to enlarge it).

Once we finished the subtractive examples we moved on to multiplication. We wrote the questions 3n+8=20 and -n-4=2 on the left side and the questions -2n=4=-2 and 3n+4=7 on the right side. There's a picture below of it all. Remember, just click to enlarge. ;)

Finally, we moved on to division! We only did stuff on the left side so don't write on the right side!!! We did many questions and all of them were completed in class. If you don't have them then they're below for you to copy.

Also, if you run out of room then go to the next page but stay on the lefternmost flap (the one to the farthest left). This is what it looks like:

Alright, now I will explain in detail how to do a two step divisive type algebraic equation (what a mouthful!). It's all explained in the picture below so have fun! Or at least try to...

There you go. Also, if you still don't understand any/some algebra then talk to Mr. H or ask somebody who does know. You could also ask me :)

Homework

For homework we need to complete page 43 and do page 44 of our lavender booklets.

Also, we have a Test on Friday, January 23, 2009!!! It's just 10 questions from our homework.

There you have it! Today's class in a (rather large) nutshell! Also, I pick Jai to do tomorrow's scribe!

Posted by NickyD905 at 6:27 PM 6 comments

Pay it Forward

Saturday, December 20, 2008

This year grade 8 students at Sargent Park school were asked to "Pay it Forward" over the winter break. Paying it forward means to do a random act of kindness "just because" and instead of getting paid back you tell the person that you helped to "pay it forward" (doing another random act of kindness just because). For pay it forward I decided to give to the Salvation Army because it helps those who need it the most. So, I did that and I was done but I still wanted to do some more. Eventually my dad had to snow blow our driveway (we have a snow blower and he uses that instead of a shovel) I decided to give him a hand by shoveling the walkways to our house as my second random act of kindness.

Once I was dressed in very warm clothing I went outside (along with my brother) and began to shovel. After I had finished shoveling the path to our back door I went to go see how my dad was doing. I then found out that the snow blower was broken (or something like that...it wouldn't work...that's all I know). Needless to say I started to help him shovel our driveway. Once we had finished shoveling our entire backyard we started on the front (me doing from the beginning of our path to the stairs, my brother shoveling the veranda and my dad shoveling from the backyard to the front yard). Once we had finished with those jobs my dad began making a path in the snowbank in front of our house. He was using an icebreaker (not the gum mind you) to do so and he only had one so he sent my brother and I inside. Later, my dad came inside and thanked us both and I told him to "pay it forward". He just nodded and said okay (he probably assumed that I'd tell him to pay it forward).
So you see, anybody can make a difference in the world. All you need to do is give a little of your time to help somebody out. In this way we can all make a difference, especially if you tell the person that you helped to pay it forward and they tell the person they helped to pay it forward. In this way, that one little thing that you did adds up and makes the whole world a better place for everybody to live in. Thus, I encourage anybody who reads this to do at least one random act of kindness and to "pay it forward".

Posted by NickyD905 at 9:32 PM 0 comments

The Great Big Book of Algebra

Sunday, November 30, 2008

Chapter One: Integer Poetry

"Adding Integers with Kitty"
One day while I was walking,
As happy as could be,
I noticed a little cat,
That happened to follow me.

I asked him what his name was,
And you know what? He could talk!
He said "My name is Kitty,
And I'll teach you how to walk!"

I told him that I knew how,
And although he looked quite sad,
He then cheered up and told me,
"Then I'll teach you how to add!"

I told him that I knew how once more,
But still,he offered to help,
He then wrote on a piece of paper,
And then I gave a little yelp!

He had added two negative integers,
Right before my eyes,
I could not believe it so I asked,
"Can I give it a try?"

He handed me the paper and pen,
And I gave it my best shot,
But sadly I could not add them,
Probably because I forgot!

Kitty was quite surprised at this,
However he showed me how,
To add integers quite easily,
And I can add them now!

"Subraction is Myth"
Subtracting is false
Adding opposites is true
Be true and go far

"Parti-wha?"
Partitive division,
Now what on earth is that?
Is it some form of writing,
Or a blue and purple hat?

I for one do not know,
What this could really mean,
Although I might've guessed,
That it might be for the keen.

Of course it is a long two words,
And the first is quite confusing!
This word I believe is just for those,
Who find such words amusing.

However it is not,
It is a form of math you'll see.
So now you know what "you know" means,
And I hope you'll let me be!

"A Man from a Town...in a Gown?"
There once was a man from a town,
Who did division while wearing a gown,
He was a bit crazy,
Some thought he was lazy,
Still, this did not make him frown.

"The Rules of Math"
Rules, rules, rules,
That's all I ever hear!
It's like I am surrounded,
By a herd of angry deer!

However in the math world,
The rules are really nice!
They bring me much enjoyment,
Kind of like a fuzzy dice.

The rules for multiplying,
Are really helpful too!
They make it easy to do a question,
And no more saying "Boo hoo!"

Oh yes these rules are something,
That I really like to obey,
These are in fact the only rules,
I listen to everyday!

Chapter Two: Combining Like Terms

and The Distributive Property

Script

British Guy: Hello Governor!

Other Guy: What? Are you talking to me?
British Guy: Yes I am.
Other Guy: Well...my name's not Governor. It's Bob.
British Guy: Alright Bob... Do you know how to simplify n+3 -5n+12 by adding like terms?
Bob: Hey man I ain't in school no more! I can do that! It's -6n+15! How do you like dem apples!
British Guy: Well...personally I must say that dem apples are rotten! The answer is -4n+15! I thought you knew how to combine like terms!
Bob: Hey man! Don't be that way! I tried my best.
British Guy: Well your best isn't good enough! I must teach you how to combine like terms!
British Guy: To start you must reorder the integers and variables. To do this you must first circle the terms that you need to combine. In this expression you would circle 3n and -5n! Do you understand?
Bob: Yeah! I get it now!
British Guy: Good. The next step would be to reorder the integers and variables so that they are next to a like term. In this expression you would put n and -5n together and put 12 and 3 together. Are you with me so far?
Bob: I guess so...
British Guy: Alright...The final step in simplifying the expression is actually combining the terms. If you do this properly then you will get -4n+15. But, in your answer you probably thought that n equals negative one.
Bob: So, it doesn't equal negative one?
British Guy: No, it just equals one.
Bob: Cool...

British Guy: Alright. I have another expression for you to simplify. This time you must use the distributive property to solve it. The expression is 2 + 4 (3n+8)

Bob: I know what that is! It's that thing where you multiply the stuff in the brackets by what's kissing it right?
British Guy: Well...I don't know about kissing but...I guess so.
Bob: Yeah!!! I'm right! So...yeah... the answer is 12n+10!
British Guy: No, sorry Bob. That is incorrect. The answer is 12n+34
Bob: What!? How did you get that!?
British Guy: Well, you have to multiply what's in the brackets by what's...kissing...the brackets. In this expression you would multiply both 3n and 8 by 4 because that's what's touching the brackets.
Bob: Oh! So you have to multiply both numbers by 4! I didn't know that!
British Guy: Well now you do!
Bob: Thanks man! Hey, I never did get your name. What is it?
British Guy: My name? Well...I can't tell you that!!!
Bob: Why? Please tell me! I told you mine!
British Guy: Alright...my name is...Petunia Louise... Don't laugh...
Bob: Hey man! Don't sweat it! That's an awesome name! In fact, it's also my mom's name!
Petunia Louise: ...Oh my...

Movie

Chapter Three: One Step Equation Solving

Have you ever wanted to solve algebraic equations? Do you want to be able to show off in math class? Do you even know what algebraic equations are? If you want to know the answer to these questions then you must know the acronym ICOBV! Now, you're probably thinking "What's that weird word supposed to do for me?" but I can tell you that if you know this then you can solve any one step algebraic equation that you want. By the way, ICOBV stands for:

Isolate the variable by

Cancelling using the

Opposite

Balance

Verify

This equation can be used to solve any kind of one step equation that you come across. Now, allow me to show you how to use ICOBV to solve the following questions.

Addition

I'll start with addition because I'm pretty sure everyone is very comfortable with it. The question will be... (note: just click the image to make it larger).

Subtraction
Now that you know how to do one step algebraic addition questions you'll find that subtraction questions are very similar. The question is...

Multiplication

Now we're in the big league. Many people get scared when someone says multiplication but I assure you that ICOBV will still come through for us.

Division
Now we're at division, the last question. Division is just the opposite of multiplication and as such you'll find many similarities to the two.

Congratulations! You can now solve one step algebraic equations! Or, if not, then I suggest that you read this post again.

Chapter Four: One Step Equation Solving

with Algebra Tiles

Posted by NickyD905 at 4:25 PM 8 comments

Integer Scribe Post for November 5, 2008

Wednesday, November 5, 2008

Hello again everyone! I'm the scribe for November 5, 2008 (as the title also states). In today's class we had a guest teacher in the room, Mr. Backe. While he was asking us what we were learning in class and what we knew about the topic, (as if he didn't already know) Mr. Harbeck was handing out giant blue and white papers. Mr. Backe then instructed us on how to actually fold the papers into the shape you'll see below. He also told us to write positive and negative signs on it just like a coordinate grid.

He then told us what the paper was for. It's going to be used to write things we learn about multiplying integers and later dividing them on the white side...the back which you can't see. After all this we started to write things on the actual piece of paper.

You probably can't see those things up there so I'll tell you what the open flaps say. The two middle ones were homework but we'll get to that later.

On the right flap (the positive, positive flap) we wrote the question (+2)(+3)= and underneath wrote When the brackets touch they multiply (in Mr. Harbeck's words they kiss and then multiply). After that we solved the question by figuring out what the question is saying. It was saying 2 groups of (+3). Then we wrote that next to the question in algebra tiles. Afterwards we put the answer to the question after the equals sign (as we always do). There's a picture of it all below if you're too lazy to read this....

Then we had to write something on the left flap (the negative, positive flap). We wrote the question (-2)(+3)= and underneath wrote This question says... Then underneath that we put the words Remove two groups of (+3) because when you have a negative first it means remove. Next, under remove we put (-) and under two we put 2. After that we put algebra tiles under it. There's a picture for it all...don't worry.

That's all we did in class today...yes, it was a relatively easy class...except for...

Homework

Don't cry! It's easy. All you need to do is make up a question like the ones on the flaps but this time you write them on the insides (what's under the flaps when your paper is closed).

That's all for today so...goodbye! Oh! Except for who's the next scribe. The next scribe is Carlo (he asked so...his wish is my command I guess)!

Posted by NickyD905 at 5:07 PM 3 comments

Ned the Integoolie

Thursday, October 23, 2008

Once upon a time there was a world quite different from ours. This world's name was Inteplanet. On this world there were strange inhabitants named Integoolies. The Integoolies were an extremely advanced and colorful race. No two Integoolies looked the same. Sadly though they were unable to think of anything other than integers. Due to this everything in their lives had to be done by solving integer questions. Even to go outside their front doors they had to solve an integer question.

One day a little Integoolie named Ned decided to go outside for a walk. As usual he had to solve an integer question to open his door. Today's question was a really simple addition question. So simple in fact that he decided to just do the math right in his head.

After he had finished putting his answer into the keypad on his front door the door flung open and he went outside. It was a very nice day and Ned saw his neighbour Paula working in her garden. Of course she wasn't gardening the normal human way. She was gardening by solving integer problems. Ned asked her if he could help. She was glad that he offered to help because there was a very hard question that she had to do for her seed package to open. Ned decided to show her a good way of doing problems with both negative and positive integers in them like the one on her seed package.

Ned found some circular rocks, 5 blue and 3 white, and arranged them in two lines, 1 with blues and 1 with whites. He then explained that a blue rock represents a positive number while a white rock represents a negative number. He also explained that a blue rock and a white rock makes a zero pair and that zero pairs equal zero. After that he explained that all you have to do is make zero pairs and then what isn't in a zero pair is your answer.

Paula used the two blue rocks that represented the answer to the integer problem in the seed package. The seed package opened and Paula was able to plant her plants. She thanked Ned and Ned went on his way.

After a while Ned saw another Integoolie who was trying to open his intezoomer. Ned being the nice Integoolie that he was decided to help the other Integoolie. The other Integoolie said that his name was Peter and that he had been trying to get into his intezoomer all day! Ned took a look at the problem and explained that it really wasn't that hard to solve.

Ned said that an easy way to solve problems with any integers is to use a number line. Ned asked Peter if he had some paper with him. Peter actually did have some paper with him and he also had a pencil. Ned didn't waste any time and started drawing a number line. He explained that zero goes in the middle of your number line and all numbers to the left of it are negative and all numbers to the right are positive. Ned then explained that number lines need scales and for the number line Ned drew he put a scale that went up one (or down when going left). After that, Ned explained that to show your numbers you would go left however many numbers it says if negative and the opposite if positive.

Peter entered the answer on the keypad on his intezoomer and the door opened and it started. Peter got inside, said thank you to Ned and flew off!
Ned was getting hungry from all his good deeds and he decided to go for lunch at Posi-Neg's Diner. When he got there he went to the lunch vendor and of course there was a problem on the vendor that he would have to answer.

Ned decided that since he would have to take out his intecoins anyway he would think about the integers as if they were intecoins. He thought like this: negative numbers I owe and positive numbers I have.

Once he had figured out the problem Ned ordered some intesoup and found a table to sit at. Once he was finished though he heard someone scream "HELP HELP!!!"

Obviously he ran outside and he saw the person who was asking for help. It was Ned's little brother Norman. Even though he didn't seem like he was in real trouble, Ned decided to go investigate. Norman explained that his integame had a question on it that Norman had never seen before.

Ned said to Norman that subtraction is a myth! All you do is add the opposite! Although Norman was puzzled when Ned said this he decided to go along with it. Ned then showed Norman how to do it on his own.

Norman wrote the answer on the bottom screen of his integame and it worked and it let him play. Norman was so happy that he rushed home without Ned. Ned then decided to go with him because he was tired of walking around.
Once he got home he found Norman again who was trying to open their door. The puzzle on it wasn't very hard for Ned because it was just a question with both addition and subtraction.

He did however teach Ned how to do questions like these for future reference.

Ned entered the answer into the keypad and him and Norman stepped into their house. There, their parents greeted them, they had dinner and they went to bed and no they didn't have to solve an integer question...although their dreams are a different story...