Showing posts with label melanie873. Show all posts
Showing posts with label melanie873. Show all posts

Melanie's 2 Minutes to Make a Difference

7:58 PM

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This is MAZE's 2 minutes to make a difference video. Me, Aleiah, Zerlina, and Elmane. Our topic is on Global Warming and Natural Disasters. We'll be talking about what others think, what negative things are happening right now, how people react, how to prevent global warming, how to be prepared for natural disasters, and what will happen in the future.



http://www.youtube.com/watch?v=BSvmv3egsKY

Thanks for watching, and please leave a comment (:

melanie905

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Melanie's Last Fraction Post

2:16 PM

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Okay, here are the instructions Mr.Harbeck gave us, for this assignment:
1) Explain how to add and subtract fractions.
- Give 3 examples: one has to be a mixed fraction.
2) Explain how to multiply fractions.
- Give 2 examples: one has to be used with proper fractions and the other with mixed fractions.
3) Explain how to divide fractions.
- Show with both proper and mixed fractions
4) Solve 2/3 word problems that he gave us.
- Show all of your work.
*Labels: yourname, fractionpost & Title: Yourname's Last Fraction Post*
DUE: TUESDAY, MAY 12 at 9:00am.

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

1) Explain how to add and subtract fractions.
- Give 3 examples: one has to be a mixed fraction.

Here are 10 easy steps on how to do it. Although, some steps aren't nessessary, depending on what kind of question you're dealing with.
1) write down the question
2) add/subtract the whole numbers
3) put the sum/difference on the other side of the equal sign
4) if the denominators aren't the same, you need to find the LCD (Least Common Denominator)
- find the multiples for each denominator until you get a number that both denominators have
5) for both sides of the equal sign, do this: (LCD/D)N=NN
- Least Common Denominator divided by Denominator times Numerator equals New Numerator
6) add/subtract the fractions
7) if the sum/difference is an improper fraction, convert it into a mixed number
- divide the numerator by the denominator (subtraction doesn't always work)
- instead of having a remainder, that number will be the numerator
- rewrite your mixed fraction
8) now just add this sum/difference to your whole number on the other side of the equal sign
9) simplify if nessessary
10) there's your answer
*simplifying basically means to make the pieces of the whole smaller*
Reminders:
- if the question you're answering, is a word problem, don't forget the simple sentence
- if there's a unit, don't forget it in your simple sentence
- if there are brackets in the question, do them first before you do the outside
- if you're adding more than 2 fractions, use the same steps, and make sure you find the LCD for all of the fractions

Now here are 3 examples:




















































~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

2) Explain how to multiply fractions.
- Give 2 examples: one has to be used with proper fractions and the other with mixed fractions.

Here are 8 easy steps on how to do it. Although, some steps aren't nessessary, depending on what kind of question you're dealing with.
1) write down the question
2) if you're multiplying a whole number by a fraction, that number will be the numerator, and the denominator is one
3) if you're multiplying mixed fractions, convert them into improper fractions
4) multiply the numerators
5) multiply the denominators
6) simplify if nessessary
7) if your final answer is an improper fraction, convert it back into a mixed fraction
8) there's your answer
Optional: draw pictures

Reminders:
- if the question you're answering, is a word problem, don't forget the simple sentence
- if there's a unit, don't forget it in your simple sentence
- if there are brackets in the question, do them first before you do the outside
- if you're multiplying more than 2 fractions, use the same steps

Now here are 2 examples:













~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
3) Explain how to divide fractions.
- Show with both proper and mixed fractions

Here are 8 easy steps on how to do it:
1) write the question vertically
2) if you're dividing with mixed fractions, convert them into improper fractions
3) if you're dividing with a whole number, that number will be the numerator, and the denominator is one
4) find the reciprical of the divisor
5) multiply the reciprical by the dividend
6) multiply both top and bottom
7) simplify if nessessary
8) if your final answer is an improper fraction, convert it back into a mixed fraction

Reminders:
- if the question you're answering, is a word problem, don't forget the simple sentence
- if there's a unit, don't forget it in your simple sentence
Now here are 2 examples:









~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

4) Solve 2/3 word problems that he gave us.
- Show all of your work.
Here are the 2 word problems I've chosen to share with you:






























Finally, I'm finished. Well, thanks for checking out my last fraction post.
Well, I hope you all understood this (:
Please leave a comment.
Goodbye fractions. Hello geometry.

melanie905

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Skills Work - Dividing Fractions

9:32 AM

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Hello, I'm here to show you how to divide fractions. Just by following these 8 simple steps, you'll find the answer to whatever question you're trying to figure out.

1) write the question vertically
2) if you're dividing with mixed fractions, convert them into improper fractions
3) if you're dividing with a whole number, that number will be the numerator, and the denominator is one
4) find the reciprical of the second ___?
5) multiply the reciprical by the fraction you're dividing
6) multiply both top and bottom
7) simplify if nessessary
8) if your final answer is an improper fraction, convert it back into a mixed fraction

Reminders:
- if the question you're answering, is a word problem, don't forget the simple sentence
- if there's a unit, don't forget it in your simple sentence

Now here are 2 examples:

Well, thanks for checking out my skills post on how to divide fractions, and I hope you all understand what I've done.
Please leave a comment.

melanie905

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Math Homework Questions

10:16 PM

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Here are my four questions from our homework.
9 to 12.

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 away, how long will it take to get to Grandma's house if you travel at the same speed?

















10) It takes 3/5 of a tank of gas to get to work and back each day. How much gas is used over 5 work days? Show your thinking.

















11) Owen is 2 1/4 times as old as Robin. When Robin celebrates his 8th birthday, how old will Owen be?


















12) The karate club is arranging a grading for its members. It takes 3 1/4 hours to test a group of 4 canidates. How long will the club need the gym in order to process 3 groups of 4 canidates each?


Thanks for reading, and please leave a comment.
If I did anything wrong, please tell me (:
Thanks thanks (:



melanie905

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Scribe Post for April 17, 2009

5:36 PM

(3) Comments

Hello everyone. I'll just be showing you 5 examples from our homework. And Simran will show you another 5 on her post. My 5 questions are on the first page/pg. C-41.

I'll be doing A and B from the top row, M and O from the bottom row, and word problem P.
First of all, you need to remember the steps for adding fractions, with different denominators.
*If subtraction, use the same steps, but subtract instead of add (step 4)*

1) write down the question
2) write down the multiples for each denominator, until you find a number that both denominators have AKA LCD (Least Common Denominator)
3) for both sides of the plus sign, do this: (LCD/D)N=NN (Least Common Denominator divided by Denominator, times Numerator, equals New Numerator)
4) add the fractions

I'm sorry if it's hard to understand, but I hope these pictures help. If not, ask Mr.Harbeck (:


































For Question M, you'll notice that there are brackets. Don't be afraid. Just do the inside of the brackets first (using the steps above), then just repeat what I've already shown you above.




















RELAX! You just need to convert/change that improper fraction into a mixed number. Hmmm... how do you do that? Well here's your answer. (shown below)

1) divide the numerator by the denominator
*subtraction doesn't always work*
2) instead of having a remainder, that number will be the numerator
3) rewrite your mixed fraction












Now you've solved inside the brackets. Now do the rest.
*When dealing with mixed numbers, just bring them down, then add/subtract*



















Okay, now here is question O. There are 3 fractions to add, but there are no brackets. So this means we aren't doing the same thing we did for question M.























Now here is the last question I'll show you. It's word problem P.
A BigBurger has 1/4 pound of meat. A SuperBurger has 1/3 pound of meat. How much more meat was used for the SuperBurger? ___ lb.
*When solving word problems, always remember the unit (lb.) and a simple sentence.*
The SuperBurger used 1/12 lb. more meat than the BigBurger.
There, 5 questions from our homework. There are 37 questions you need to do. I've already given away 5, so tomorrow everyone should have at least 5 done. *wink wink*
FINISH IT.
Well I hope my scribe made sense to you guys, and thanks for reading.
Please leave a comment.
I pick Zerlina for the next scribe (:

melanie905

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Skills Work - Adding Mixed Numbers

9:44 AM

(0) Comments

Hello. I'm here to show you how to add mixed numbers.
Here are 10 easy steps on how to do it. Although, some steps aren't nessessary, depending on what kind of question you're dealing with.

1) write down the question
2) add the whole numbers
3) put the sum on the other side of the equal sign
4) if the denominators aren't the same, you need to find the LCD (Least Common Denominator)
- find the multiples for each denominator until you get a number that both denominators have
5) for both sides of the equal sign, do this: (LCD/D)N=NN
- Least Common Denominator divided by Denominator times Numerator equals New Numerator
6) add the fractions
7) if the sum is an improper fraction, convert it into a mixed number
- divide the numerator by the denominator (subtraction doesn't always work)
- instead of having a remainder, that number will be the numerator
- rewrite your mixed fraction
8) now just add this sum to your whole number on the other side of the equal sign
9) simplify if nessessary
10) there's your answer

*simplifying basically means to make the pieces of the whole smaller*

Reminders:
- if the question you're answering, is a word problem, don't forget the simple sentence
- if there's a unit, don't forget it in your simple sentence
- if there are brackets in the question, do them first before you do the outside
- subtraction uses the same steps, but instead of adding, it's subtracting
- if you're adding more than 2 fractions, use the same steps, and make sure you find the LCD for all of the fractions

Now here's an example:


















There you go. I hope all of this makes sense to you. If not, you should go talk to Mr.Harbeck.
Thanks for checking this out, and please leave a comment (:

melanie905

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Pythagorean Theorem

9:44 AM

(3) Comments

Mr. Harbeck was supposed to teach us a new unit, but he had an accident, and unfortunately forgot everything. So here's what I think the whole unit is about.

These are the four artifacts that were found in his backpack:












1) How are these artifacts linked?

a) The statue of a man's head is Pythagoras.
b) The shape with a little square in the corner, is called a right triangle.
c) The square is simply, just a square.
- all sides are equal
- you could tell if all sides are equal if there are four ticks on them
- has 4 right angles
- has 4 sides
- has a line of symetry
- two right triangles make a square
d) The formula is called the Pythagorean Theorem.

Pythagoras figured out a theorem, which was a2+b2=c2. That's why it's called the Pythagorean Theorem. In his theorem, he used right triangles and squares to figure out some math problems.

Here are some vocabulary that was found on a piece of paper:

a) legs
b) hypotenuse
c) R. A. T.
d) Greek
e) theorem

2) How could you use the vocabulary to explain the artifacts?

a) The legs are the two sides of a right triangle, that make a 90 degree angle.


















b) The hypotenuse is the longest side of a right triangle, and/or the side that is opposite of the 90 degree angle.
















c) A R. A. T. is a right angled triangle. Basically, a right triangle. (same thing)
d) Pythagoras is Greek.
e) Pythagoras' theorem is a2+b2=c2.
*label all three sides, a, b and c.*

3) What is the Pythagorean Theorem, and why does Mr. Harbeck care, in Grade 8 Math?

The Pythagorean Theorem is a2+b2=c2. It's basically a formula to calculate a side of a right triangle. When using this theorem, you'll be dealing with triangles, squares, areas, perimeters, and square roots. If you read my post carefully, you'll understand, but if not, I recommend that you find more sources.

I think Mr. Harbeck cares about this unit, so we could be prepared for Grade 9 Math, next year. I also have a feeling that we're going to be dealing with this stuff in the future.

4) Here are 2 problems that I'll show you how to solve:

Problem #1

This diagram shows the game plans for a game designed by Harbeck Toys INC. The board is made up of a square and 4 identical right triangles.
If the central square has an area of 225 square centimetres, what is the perimeter of the board game?












































Problem #2

What is the perimeter of the orange triangle?































17 + 30.232 + 24.999 = 72.231 cm

Thanks for reading my Pythagoras Post (:
Please leave a comment.


5) Here's my video with Elmane. Zerlina's part of our group but she couldn't do it with us.







melanie905

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Scribepost for January 22, 2009

1:44 PM

(4) Comments

Today in class, Mr.Harbeck went over yesterday's homework that were difficult for some people. We went over pages 43 and 44.

I'll show you two examples from page 43.

























I'll show you an example from page 44.


















I'll show you an example from page 46.


For homework:
1) Make sure your finished page 43.
2) Do the rest of page 44. But you don't need to do the word problems, but you can if you want.
3) Do the equations on page 45. Don't do the word problems.
4) Pick any 6 questions from page 46, and do them.
That's about everything we did in class today.
Thanks for reading my scribepost.
Please leave a comment.
I choose Angela for the next scribe.
WEAR PJS TOMORROW :P
or else... I'm going to be mad at you... just kidding :P

melanie905

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Pay It Forward

1:02 AM

(2) Comments

On Friday, December the 19th, all the grade 8 classes went to Mr. Harbeck's room and watched a movie called, "Pay It Forward." The main message in that movie was that, just one person could make a difference. To help spread the word about "paying it forward," each student was assigned to do one act of kindness, during the winter break.
I know that we were only assigned to do one act of kindness, but I wanted to do an extra one, and I did, but I got Mr. Harbeck's permission first. (:

1) Who are you going to help?
2) What are you going to do?
3) Where are you going to do this?
4) When are you going to do this?
I'm planning to help drivers, pedestrians, my parents, and my brother, by shoveling the snow in my back lane (with parent supervision), and cooking eggs for my brother. I'll be doing this in my house kitchen, just before we sleep.








1) What happened?
2) How did you feel?
3) How did the the person/people react?
4) Did you ask the person/people involved, to "pay it forward?"
5) If you did not ask the person/people, to "pay it forward," how come?

While I was shoveling, a car passed by, and the driver smilied at me. I felt good about what I was doing. I knew that I was doing the right thing. Plus, I was having fun, too. My parents were very pleased, and proud of me. And I did ask them to "pay it forward." And they said, "definitely."

I cooked scrambled eggs for my little brother, for a bedtime snack. I felt good about myself, and the fact that I love to cook, made this act of kindness very fun for me. As a result, the eggs turned out great. My brother ate it all up and said thank you. And I also asked him to "pay it forward." And he said, "of course."

Yes. I strongly believe that only one person could make a difference. Even if you just did the simplest things, like setting up the table for dinnertime and putting your toys away. Just as long as your making someone else happy, and you feel good about it. If everyone in the world "pays it forward," we could be able to make a big difference.
I dream of a world where everyone's smiling. And happy.

Thanks for checking out my "Pay It Forward" experience.
Please leave a comment (:

melanie905

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Melanie's Big Book of Algebra

8:13 PM

(8) Comments

Chapter 1 - Integer Poetry

1. Adding Integers - Picture Poem (a poem that forms a picture)












2. Subtracting Integers - Tanka Poem (5, 7, 5, 7, 7 syllables)

Always think money
No such thing as subtraction
Add the opposites
Take away, minus, decrease
Negatives and positives

3. Partitive Division - Haiku Poem (5, 7, 5 syllables)

Divide, easy, share
The number of equal parts
Distributing, plain

4. Quotative Division - Haiku Poem (5, 7, 5 syllables)

Simple, numbers, plain
Positives and negatives
How many are there

5. The "Rule for Multiplying" Integers - Tanka Poem (5, 7, 5, 7, 7 syllables)

Multiplication
An even or odd amount
Product, integers
Positives or negatives
zeros, product is
Thanks for reading my poems.
Please leave a comment.

Chapter 2 - Combining Like Terms and the Distributive Property

Michael: Hey, Jenny!
Jenny: Hey!
Michael: Wow, long time no see. So how’s it going?
Jenny: Haha! Yeah, I know! Well I’m okay. I’m just having some trouble in math…
Michael: Oh, really? What are you having trouble on?
Jenny: We’re learning how to combine like terms. And, also the distributive property.
Michael: Oh, same here. Although, I’m doing pretty good on it. I’ll be glad to help you.
Jenny: Okay. Thanks, I would really appreciate it.
Michael: Haha, no problem. Okay, I’ll ask you 2 questions. So then, I know everything that you know.
Jenny: Okay. I’m ready.
Michael: Okay, Question #1, n+3-5n+12. What’s the answer?
Jenny: Hmmm… the answer is… -6n+15.
Michael: Umm.. sorry, but that’s incorrect. The correct answer is -4n+15.
Jenny: Huh?! But how?
Michael: Okay, remember you need to regroup all the terms by circling them?
Jenny: Okay… I did that…
Michael: Good, and then what did you do?
Jenny: Ummm… I did -5n-n, and then got -4n.
Michael: Okay… there. That’s you mistake. You made the n negative.
Jenny: Ohh.. I get it. Oops.
Michael: Haha. Okay, I’ll ask you the next question. But this one is about the distributive property.
Jenny: Okay.
Michael: 2+4(3n+8). What’s the answer, Jenny?
Jenny: Okay… I’m pretty sure that the answer is 12n+10. Is it correct?
Michael: …uhh… sorry, that’s also incorrect. The correct answer is 12n+34.
Jenny: Aww… well, what did I do wrong this time?
Michael: Well, instead of multiplying 4 by 8, you added 2 and 8. So, basically, you keep forgeting some steps. But just remember, practice makes perfect.
Jenny: Okay, thanks Michael.
Michael: No problem, Jenn. Well, I’ve gotta run.
Jenny: Okay then, see you later.
Michael: Bye.

I apoligize, for not having an xtranormal movie. Honestly, I did finish, but then it had troubles loading.
Thanks for reading my xtranormal conversation.
Please leave a comment.
Chapter 3 - One Step Equation Solving
Additive






















Subtractive























Multiplicative






















Divisive


I'll rotate them as soon as I could.
Chapter 4 - Solving Equations with Algebra Tiles

I'll upload the video as soon as I could.


Chapter 4

melanie905

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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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