Showing posts with label kuung 841. Show all posts
Showing posts with label kuung 841. Show all posts

Hanbit's Last Fraction Post

Monday, May 11, 2009
This was all done in my voicethread .. Yeah, no voice. Sorry if it's confusing but I tried my best.

Maeddah's and Hanbit's Multiplying Fractions

Wednesday, April 29, 2009



Question 8
A sailboat is sailing at 8 1/2 km/h. If the weather conditions and the current do not change, how far will the sailboat travel in 1 1/3 h? Show your thinking.
The sailboat will travel 11 2/6 km/h far.


Question 9
The distance to Grandma's house is 4/5 of the distance to Uncle Glen's house. If Uncle Glen's house is 3 1/2 hours awy, how long will it take to get to Grandma's house if you travel at the same speed?
It will take 2 4/5 hours if you travel at the same speed.

Question 10
It takes 3/4 of a tank of gas to get to work and back each day. How much gas is used over 5 days?
3 tanks of gas is used over 5 days.

Question 11
Owen is 2 1/4 times as old as Robin. When Robin celebrates his 8th birthday, how old will Owen be?
Owen will be 18 years old when Robin celebrates his 8th birthday.
I did my question on.. GOOGLE DOCS!

April 23 2009, Scribepost

Monday, April 27, 2009
Hi you guys! Today is a Sunday, and I'm doing a post for Thursday. Sorry I'm really late. I was caught up, and forgot I had to do a scribe .. Sorry!
We were doing some more fractions today. And the question today was:

Question: Which neighborhood is getting more hardtop than the other? (is there more hardtop in one lot than the other?
How would you convince the people in the two neighborhoods that your conclusion is correct?




I multiplied it like I would when I add two fractions together. Since we're trying to find out which is bigger- 2/5 or 3/4- for the hardtop, I figured it would be easy by finding the common denominator first. A 20 would go into both, so I multiplied 2 by 4 to get 8 and 5 by 4 to get 20. The answer for my first one, was 8/20.


For this one, I multiplied it like I would if I were to add fractions .. again. The answer came out as 15/20. If we compare 8/20 with 15/20- which would be bigger? Obviously 15/20! So, Flatbush has more hardtop space, whereas Carrol Gardens has more playground space.


How would I convince these people? Well, I already showed diagrams, and I think I explained well enough .. :) k, if you don't get it; go to Harbeck's at lunch!
Next scribe .. do I have to pick? Well, if I do have to pick, then I would pick .. RON!


Correction:
I'm sorry. I'm BAD at math, so I got the above answer all wrong! The correction is: You start off with a square that's divided into four, and 3 fourths of it is shaded in. Then, you find out the common denominator! So since the denominator is 20, you divide the square into 20. Since it's now divided, into 5 lines, you shade in 2 parts of it from the 3 fourths that was shaded in. I know this doesn't make sense, I didn't get it either :(





Since this is Flatbush, we divide this one into fifths first, then divide it by 4, into 20. 3 fourths of it is a simplified version of 6/20.










So this means, that FLATBUSH and CARROL GARDENS have equal parking lots!


I think this might help .. o.O

Harbeck has Amnesia!

Wednesday, February 25, 2009
Harbeck fell and bumped his head.. he's like that guy, who bumped his head and couldn't get up till morning? Or something like that. Anyways, he found these weird things, and wants us to find out how they relate to each other, because he forgot! What did he find? Well, he found some weird looking shapes...


He also found a weird looking formula! Also found a bust. Well I so happen to know what those shapes are, and that formula + the bust. But Harbeck had also found some words on a piece of paper.. legs, hypotenuse, R.A.T, Greek, theorem. I happen to know what those mean too! :) Sit back, relax and get ready to learn!

Want to wonder what those words relate to the pictures? Well, then.. legs relate to the triangle. The legs make a big L or they can make up a 90 degree angle. If they can make up a right angle, they will be called complimentary angles! They will always be labeled as A or B.


The next word, hypotenuse is side C in the triangle. It is the longest side, and is always located across the 90 degree angle.
R.A.T. stands for Right Angled Triangle, meaning, it has a right angle! (90 degree angle).


Greek relates to Pythagoras, the guy who's the bust. He was Greek and the father of math but we'll talk about that later..
Theorem? The Pythagorean Theorem is the theory that Pythagoras talks about A2 + B2= C2 (the 2's meaning squared).



First, let's start off with a triangle. That triangle is called a right angled triangle, it only has one right angle. The right angle is made from the legs, or theta and beta. Theta and beta can also be called complimentary angles, because they make up a right angle as well.



Second is the square. A square has 4 equal sides, and to represent that the sides are equal, we draw lines on each 4 sides. There are 4 right angles in a square, and if you cut it from the corners, you can get a triangle!






The third picture is the Pythagorean theorem. The Pythagorean theorem explains how A2 is AxA + B2 is BxB. The sum of A2 and B2 equals to C2. I'm sorry if I can't explain this well, but it's easier said than done. My sister said this was sort of the way to explain it, so I will leave it like this.


AND.. finally, the picture of Pythagoras' bust. He was a great, Greek mathematician. He made important developments in the theory of music, astronomy and math. Pythagoras usually hung out in Egypt and was a vegan. He was the first one to believe that the Earth was round, and that the Earth revolved around the sun.







Here is an example on how to solve the Pythagorean theorem.
(2 means squared. I can't find any other small 2 -_-)

A2+B2= C2
Let's label the 10mm as C, since it's the longest side.

Then, label the 8mm as A, or B. The bottom, A or B.

A2+8(2)= 10(2)-8(2) .. I put brackets so you won't get confused.
-8(2)

B2= 10(2)-8(2)
B2= (10x10) - (8x8)
B2= 100-64
B2= 36
(square root for both of them)
B= 6.
So, when you have only B or only A, you have to add the opposite. For example, 8(2)'s opposite would be -8(2).


Another example of the Pythagorean theorem is finding the perimeter from finding the sides of the squares. Next, you will know what the sides A and B will be, because they're equal. After you have found A and B, you will have to find out what the hypotenuse is. After you've found out what the hypotenuse is, add up all the sides on the triangle to find out the perimeter of the game board!


Here are the two videos that Tracy, Peachy and Gelli made. I'm not in the video because I had an ortho, and now my teeth hurt -_- Well anyways, good job making the video, you guys!




Here you go Harbeck & .. classmates! :) I fail to explain things well, so I'm sorry if this is confusing. Like I said, easier said than done.

Scribe Post for Feb.19, 2009.

Sunday, February 22, 2009
Hello you guys! I'm the scribe.. again. I should probably stop volunteering.. haha. Anyways, for my recap of what we did, I made like.. 6 paint pictures. They took me an hour to do, booooo >:( But luckily, i'm finished and I can finally sleep. Um, I hope you like my pictures, I tried making them color coordinated! :D And if they don't help you in any way, then just go to Mr. Harbeck's! He's open every lunch hour, I think. Or unless he kicks out people now. Well, this is a long introduction. Hope you guys will understand, and any mistakes? Comment it please!


This is a right triangle. But what in the world is that circle in the corner, and that huge B? Also, what's that square, what the-? The real question is, what are those letters for?













That circle thing, is called theta. The fancy big B is called beta. Theta and beta, added together equals to a 90 degree angle.















That 90 degree angle is the only one in a right triangle. A right triangle can also be called R.A.T. which means right angled triangle.
















So what are the letters for? A and B are called legs, these legs can ALSO make up a 90 degree angle.

Harbeck told us that B is for 'bottom' or 'base', so it's labeled on the bottom. :)

The C is called a hypotenuse.










What's a hypotenuse?
It's the longest side in every right triangle.

How do you know where it is?
You can always, always, ALWAYS find it across from the right (90 degree) angle.


LET'S MOVE ON ...
TO SQUARES.
When you draw a square, it might not be the perfect square! It may be a rectangle! But if you draw lines on all 4 sides, it will mean that all sides are equal and therefore, has proof that it is a square.
What do the lines mean?
The lines show that all sides are equal. It also shows that since all sides are equal, it is a square and not a rectangle.
4 with an exponent of 2, means 4 squared. Since it is 4 squared, it is 4 doubled. If you draw the measurement of one side of a square, then you can easily find out the area!
But when there are letters, you can only find out AxA and A squared, since there are no numbers to show what the area is.
WELL, during the whole time I was doing this, my foot was asleep 8/ it felt weird. I hope you guys liked my scribe! Okay, some things might've deleted .. and it's not my fault, it's my laptop's fault -_- It's so weird. For next scribe..? Harumph.. I choose Joseph :) Hehe, you sucker.

Pay It Forward

Sunday, January 4, 2009
I am going to help my neighbours by writing thoughtful cards for them, or shoveling their driveway. I can also help by doing chores at home without being asked, or babysitting and telling my parents to have a night off. I can volunteer at charities or christmas cheerboard and at the Children's Hospital. I can help these people, whenever I think they need to be helped. Or I can help them when I have something I don't really need to do.

What happened was that I helped an employee at a clothing store because most of the customers left the clothes in the fitting rooms and also would toss them in a pile. I didn't really say anything to the him but I took the clothes in the pile and started to fold them. I felt happy that I was able to make his job easier. I felt kind of excited and glad because now he didn't need to waste a lot of time on folding and sorting out the clothes. He reacted by smiling at me and saying that it was okay and that he could fold the clothes by himself. But I didn't listen to him, and kept on silently folding the clothes. After I was done folding them, I sorted them out into groups (jeans with jeans, shirts with shirts) and just left them on the table. The person smiled at me and said 'thank you' before I left. No, I didn't ask the person to pay it forward, because I forgot that I was doing a project, until afterwards when I realized that I should have told him about my project.
One person can make a big difference in the world. If I start doing something kind, other people will learn from my acts of kindness, and it will rub off on them, like a disease. So that they have no choice to spread it to other people, until the whole world is involved. That's how charities began and that's how foundations began, all by one person trying to make a difference.

The Great Big Book of Algebra

Thursday, December 4, 2008
Chapter 1: Math Poetry

Picture poem: Adding

add
add
add
add
positive integers combined equals positive
positive add negative is same as subtract
add
add
add
add

Haiku: Subtracting
Add the opposite
It's better to change the sign
Change it to adding

Free verse: Partitive
To explain partitive,
you must stay on task.
If you ever get confused,
questions will be asked.

To explain partitive,
sharing must be done.
You have to make groups,
and divide the numbers one by one.

To explain partitive,
we're almost done you see!
Just remember sharing is important,
so share with you and me!

Tanka: Quotative
Sometimes it is hard,
sometimes it is easy!
If you learn how to,
you will agree completely!
What goes into what, that's all!

Free Verse: Ron's Rule
Multiplying
odd number of negative integers,
will make a negative product.
Multiplying

even number of negative integers,
will make a positive product.
Multiplying
using Ron's rule,
will always help you!

Chapter 2: Combining Like Terms and Distributive Property


Bear: Teddy! I need your help, can you help me?
Teddy: Sure Bear! What do you need help on?
Bear: Algebra obviously!
Teddy: Okay then.... What question?
Bear: Hm.. n+3-5n+12. I think the answer is is -6n+15.. But how do I draw how I got it?
Teddy: WRONG! The answer should be -4n + 15.
Bear: WHAT?!
Teddy: You get it by combining the like terms, n and -5n are like terms because they include n!
Teddy: Whenever you combine the like terms together, always bring the sign in front of it too.
Teddy: After you add n and -5n together, it's -4n because the n is a positive and not a negative.
Bear: Oh... What about the other numbers?
Teddy:Add 3 and 12 together, you just add together like normal numbers. The answer should be 15.
Bear: Haha oh I get it! Thanks Teddy. I need you to help me with on more question though!
Teddy: Sure, no problem. What is it?
Bear: 2 + 4(3n+8) Is the answer 12n+10? Because that's what I got!
Teddy: Sorry but that's not the answer.
Bear: Ugh.. Okay so what is the answer?
Teddy: When there's a bracket and a number beside it, the number that's touching the bracket is the multiplier of the numbers inside the brackets.
Bear: So then it's 3n multiplied by 4 and 8 multiplied by 4, right?
Teddy: Yup!
Bear: So then.. 3n times 4 is 12n.. and 8 times 4 is 32...
Bear: You add them all together .. 2+4+12n+32 ... which is...
Teddy: Hold on! That's wrong, you don't add the 4 because the 4 was already used as a multiplier. If a number has already been used, then you can't use it twice.
Bear: Oh.. okay, then it's 2+12n+32?
Teddy: Remember to combine like terms to make it look nicer.
Bear: Haha okay. Is the answer 12n+34 then? Because 2+32 is 34 and 12n has no like term.
Teddy: You got it!
Bear: Thank you so much Teddy! I owe you one!
Teddy: It's okay! Anything to help a friend, right?
Bear: Thanks Teddy! I'll see you in school tomorrow, okay?
Teddy: Okay!
Bear: Bye!

THE END :)
by the way: I kind of changed my script on the movie because the script was too long for it to all fit in one movie and I was lazy to make a continuation? So.. sorry if my movie is horrible and the camera angles are WRONG WRONG WRONG!



Chapter 3: One Step Equation Solving
Additive:


Subtractive:


Multiplicative:

Divisive:

Chapter 4:

^ HAHHA, sorry. My voice sounds so screwed up in the whole video. And I have a major lisp -_- Oh jee, and props to MAEDDAH LIMUACO, TRACY OCHOA! :) I hope you enjoyed our algebra tiles movie. It was fun making it. And sorry for the NOISY background people. HAHA, kidding you guys (y)

Scribepost for November 14th, 2008.

Sunday, November 16, 2008
I want to get my scribe done and over with :) Don't just scroll all the way to the bottom please, just read it and ... comment if it doesn't make sense? :) I kind of didn't know what to do at first, so it might not make sense to what Mr. Harbeck did? HAHA, okay then. Long enough introduction.

(This might be the 'new stuff'.)
ORDER OF OPERATIONS:

You can't group the positive or negative integers together in a multiplication question, to make it easier. You HAVE TO go in order. Whatever is written first must go first in the order of operations. Multiply the integers in the brackets FIRST. After you multiply the 2 together, bring the adding sign down. Then add the question altogether to get the answer.
FOR EXAMPLE?
-3(6) - (2)(-4) =
-18 - -8 =
-18 + +8 = 10
BOX..ES:
<>
eew, H O M E W O R K :
In the green booklet, on page six (COMBINING MULTIPLICATION WITH ADDITION AND SUBTRACTION) , do questions 1 to 9 in your notebook. Remember to show your work, I hope what my scribe says, kind of taught you to show your work .. well? :)
Well okaay then, I think i'm done my scribepost? Am I missing anything, Harbeck? :) Hopefully not! HAHA , yeeah i'm not going to 'break the chain' you guys :) I want to pick a guy for the scribe, I don't even know why .. o.O The next scriber is... SEAN! Sorry, but I had no one to choose. They didn't want to be scriber and they were blahblahblah... So yeah :D Have fun!

Hanbit's Integer Story

Sunday, October 26, 2008
Once upon a time, in a land far, far away there was a princess named Lynn. Lynn was those fairytale book princesses, but always got ignored by authors and publishers because she didn't have a fancy name like Cinderella or Rapunzel. Anyways, Lynn got up one morning, got into her morning dress and went outside for a walk with her dog. After an hour, she got tired and decided to lie down in a field of grass. She looked up at the clouds and felt tired, so she took a little nap. When Lynn woke up, she found her dog gone and herself in a weird place. Everything was made out of fluffy material and it felt like she was going to fall at every step she took. When she looked down, she saw tiny buildings, and squares of fields. She noticed she was walking on clouds! Lynn screamed and expected to fall but instead something hit her leg. It was a penguin! The penguin asked her, "If you want to go back on land, you have to answer this question! What's (-8) + (-13)?" Lynn thought hard, and she suddenly thought of a number line! Lynn told the penguin that the answer was -21. "Correct!" said the penguin, and with a cloud of puffy purple smoke, he vanished. "HEY! Hey!" yelled Lynn. What was she supposed to do when the penguin didn't even keep his deal? She sighed and walked around some more. She bumped into a goose that appeared to be flying south but lost his way. "Excuse me! Sorry, but how do you get down from here?" Lynn asked. The goose honked, "I'll help you get down from here if you tell me the answer to this question. What's (-4) + (+4)?" Lynn thought of another way to answer the math question. She thought of bingo, which made her think of bingo chips, which made her think of integer chips! "I know what the answer is! It's 0!" said Lynn. The goose nodded his head and told her to hop on his back. Lynn did as he told and the goose dove down. He dove deeper, deeper and deeper. Lynn's cheeks flubbed against the wind and she screamed as the goose came to a screeching stop. The goose smiled and said, "You're welcome!" Before Lynn could say anything, he took off again to the clouds. Lynn looked around and smiled, she was so happy to be back on land. But she noticed that something was missing... her dog! She looked around and asked everyone if they saw her missing dog. One person said that she did but she would only tell Lynn where she saw her missing dog if she answered another integer question. "What's (5) + (-3) ?" Lynn was puzzled and didn't know any other strategy to use to answer the question! She thought of money and came up with this answer.. "I think the answer is +2!" exclaimed Lynn, hoping to be right. The person nodded her head and smiled. "Your dog is somewhere inside a building that has a big H on it. That's all." The person replied, and brushed past her. Lynn sighed and looked around for a building that had a big H. She gave up hope and asked people where she could find a building with a big H on it. One person said there was no such building. Another person said that it was far, far away. At last, there was a person who could help her. His name was Prince. "I know where you can that building, but first you have to answer my question. What's (2) + (+7) + (-2)?" Lynn laughed because she thought it was such an easy question that she didn't even need to use any strategy at all!Prince showed her the way and led her inside the building. Lynn heard a dog bark and ran to every room to find her dog! When she finally did, Prince blocked her way. "Move man!" Lynn yelled, desperate to go home with her dog but Prince shook his head. Prince told her that the dog belonged to him, not her and that she couldn't go home with it. Lynn couldn't believe her ears, and all the trouble she went through just for this! Prince smiled evilly and told Lynn to go home without the dog but she wasn't the type of princess who could just easily buy another dog. She was someone who didn't go down without a fight!

TO BE CONTINUED :)
CONTINUATION ..

Lynn yelled at Prince, throwing a shoe at his face. But Prince didn't even move, he just stayed at the exact same spot for hours and hours. Finally Lynn got tired and wanted to just go home. "Eh, who needs a dog anyways? I have lots more at home." Lynn said and turned around. Before she even took one step, Prince coughed loudly. "Sooooo... You don't want your dog anymore?" Lynn just shook her head and walked to the doorway of the building. She heard her dog bark but she pretended not to care, when inside, she really wanted her dog back. Prince grunted and said, "What if... I'll give him back to you?" Lynn raised her eyebrows and turned her head. "BUT... You have to answer a really tricky question and I'll give the dog back to you." Lynn laughed and rolled her eyes. "Whatever, I can do this!" Prince laughed back at her, "Then what's (+6) - (-4) =?" Lynn's eyes went really big. She never learned how to subtract integers! She panicked and her eyes looked as if they were about to pop out of her socket. Lynn thought hard, and remembered how she solved the other questions, with integer chips! So she decided to use them again and it looked like this...

"The answer is.. +10, right?" Lynn said. Prince looked BEWILDERED, he was flabbergasted, he was shocked and amazed! He didn't know what to say, but he was very pleased that Lynn got the question right because he was actually scared of dogs. Prince nodded his head so many times that Lynn thought it was going to roll of his neck. She scoffed and remarked, "I told you. I'm just smart." She took her dog and walked out of the building. But the Prince was too surprised that he didn't want Lynn to leave! "WAIT!" He was going to yell her name, but then, he remembered that they didn't even know each other's names! Prince just ran after her, out onto the busy streets. He looked around but couldn't find Lynn anywhere! Little did he know that Lynn was behind behind a trash can that was in the alley of the building. She laughed quietly, but her dog barked so loud that it echoed through the trash cans and out to Prince's ear. Prince spun around and smiled, when he spot the Lynn who was squashed between a garbage can, and a dog. Lynn rolled her eyes and stood up, asking, "What do you want?" Prince smiled and said, "Since you're an unknown princess and I'm a very famous prince that's known in EVERY fairytale, you'll become a very famous princess! So... why don't you marry me?" Lynn stood there, too shocked to say anything. "Excuse me? ME? AN UNKNOWN PRINCESS?! Pfft, and what fairy tales are you mentioned in?" Lynn asked. Prince laughed like he was proud and replied, "In every one of them. Like, Cinderella, my name was mentioned and in Rap-" Lynn waved her arms in front of him, motioning for him to stop talking. "Whatever. If you want to marry me so bad, you have to answer a question. It's going to be the hardest one ever. What's (+2) - (-5) + (+5) - (-2)?" Prince scoffed, "That's the EASIEST one ever." He was a very smart prince and thought that if there were 2 uh-ohs beside each other, you have to replace them with 2 plus signs. In his head, his thought process looked like this..."The answer is +14! Now, will you marry me? We can end this story with a 'happily ever after!'!" remarked Prince, anxious for her to be his wife. "That's... right. I think.." sighed Lynn, she didn't even want to be his wife! She didn't even want to marry! She sadly nodded yes, and walked away with her dog. Prince and Lynn married a week after that. She didn't know what kind of person Prince was! He was so nice to her, and he understood her. Lynn was happy, and so was Prince! Lynn was also happy because what Prince said was true! Lynn actually did become a very famous princess. A story was written about her, but not a normal prince rescues princess kind of fairytale. It was called Hanbit's Integer Story! Anyways,they both lived happily ever after.

Scribepost for October 24th, 08

Hello you guys, sorry it's not even the 24th today, but the scribepost is for last Friday.
Mr. Harbeck told us to make an integer story that requires 4 to 8 pictures. 4 pictures that have a question ( (+4) + (+8) =? ) and 4 pictures that have the answer ( (+4) + (+8) = +12). The pictures can be done on paint or it can be taken on a digital camera and uploaded onto your computer. The end must have 'to be continued'. The tags you make must be your display name, wworkshop, intstory. Don't capitalize any letters. If you kind of don't get what i'm explaining, you can look at all the other pro integer stories that the other people made.
Well, I think this might be enough for explaining the integer story? HAHA well , sorry I did such a sucky job and i'm sorry if it's all confusing and weird.. Anyways, the next scriber is.. CARRIE! :D good luck!

Hanbit's Measures of Central Tendency

Monday, September 29, 2008
Mean:
  • Arrange data in ascending order.
  • Sum of all data, divided by how many numbers there are in the data

Median:

  • Arrange data in ascending order.
  • If there are 2 medians, add them together, then divide by 2 to get the average.
  • The middle number from the data

Mode:

  • Arrange data in ascending order.
  • The most common numbers in the data.

Range

  • Arrange data in ascending order.
  • subtract the smallest piece of data from the greatest piece of data.

Here is a video from youtube that explains mean, median, mode and range.