Monday, February 26, 2007

BOB - Proportional Reasoning

When we first started this unit, I was totally lost. I didn't really understand any of the things Mr. Harbeck was teaching us. Then as the year went on, and we learned more and more about Proportional Reasoning it started to come to me and i started to understand these things, because we learned how to solve these problems by using XKY charts , Ratio Tables and Equivalent Fractions.

What i found easy about this unit was to finish the activities in the bluebooklets which were also aobut Proportional Reasoning, but in shapes and numberlines. What i found to be the most difficult was the word problems because they had some complicated stuff. I say this unit in Proportional Reasoning has taught me how to solve alot of problems in muliple ways, which may come in handy in the near future.

Thursday, February 08, 2007

pAoLa's cUmULaTivE tEsT qUeSTiOn 8

8. A child can run 5 blocks in 2 minutes. How long does it take the child to run 8 blocks, at the same speed.
solution in 3 ways(cross multiplication,equivalent fraction and ratio chart)

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Nicole's Culmulative Review Question #1

(1) You have a notebook of 23 sheets of paper; and 3 of them are black. A page falls from your notebook; what is the probability is was a black sheet?

To get the percent:
You divide 3 by 23, then multiply the answer by 100.
3 / 23 = 0.13
0.13 x 100 = 13%

question # 5 in cumulative question....


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comment if i made some mistakes.. thnx... :D

-rivka cabalquinto 8-17

Cumulative ; Question Number 12

(12) Dave interviewed a number of students in his school regarding their favorite ice cream. Dave claimed that exactly 40% of the 37 students interviewed liked vanilla the best. Is it possible to determine whether David's claim is correct? Why or why not?

David is INCORRECT ! 14.8 Students like vanilla ice-cream. It is not possible to determine David's claim you can't have a decimal of a person. View BubbleShare for explanation.

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Question 11 Alexm

(11)Is taking 10% off a given item and then an additional 40% off the reduced price the same as taking 50% off the original price? Why or why not.


-Choose a number you can easily play with... i chose ''100''
-10% off the original price(100) = 90
-My question; what is 40% of 90 = 40 "divide" 100 = 0.4 x 90 = 36

answer: NO, it is not 50% when you do this because you get the 40% of the 90 making it 36.

Question 7 - Cu-mulative Question

(7) Christina practices figure skating an average of
15 hours per week. Kayla practices figure skating an average of 1.5 hours for every hour Christina practices. How many hours a week does Kayla practice?

1.5 (hours for every hour christina practices) x 15(hours per week) = number of hours kayla practiced. In this case, lets say christina practiced for 1 week which equals 15 hours. So... Kayla practices 1.5 hours for every hour christina practices.

1.5 x 15 = 22.5

kayla practices 22.5 hours in one week.

Question#9 : Cumulative Review Questions =)

Question no. 9 /.

(9) Find the mean, median, and mode of the following sets of numbers.
» 2,5,7,8,3,6,4,5,1
» 12,4,16,22,19,4
» 78,45,45,78,60,75

Mean = Average

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Median = Middle

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Mode = Most Common

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Good luck on our TEST :)

BY: ANDREA T , 8-17

Question 3 > Cumulative Questions

(3) Zach owns 34 black outfits, and about 5 colored outfits. If he choses his outfit at random, what are the chances that he will select a black outfit on any one day?

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Camille's Camulative Review Question #10

(10.)An ice chest contains 9 cans of apple juice, 8 cans of grape juice, 7 cans of orange juice, and 5 cans of pineapple juice. Suppose you reach into the container and randomly select a can. What is the probability that you will pull a,
  • Apple Juice
  • Grape Juice
  • Pineapple or Orange Juice

Question 4, Cumalative questions

(4) What is the Square root of the following numbers. Use your perfect square chart and fractions. Do not use a calculator.
Square Root of 27, 46, 72, 115.

*Note: you may not be able to see the "Gizmos" I don't know why.*

finding the square root of 27 without a calculator. Watch this bubble share.

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finding the square root of 46 without a calculator. Watch this bubble share.

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finding the square root of 72 without a calculator. Watch this bubble share.

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finding the square root of 115 without a calculator. Watch this bubble share.

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Hope you have understood my explanations and good luck on your test tomorrow!

Wednesday, February 07, 2007

BOB Proportional Reasoning

When we started proportion i have no idea what will i say if Mr. Harbeck ask me about it. But when we watch the video I started to learn something. I learned how to use "X K Y" and "equivalent fraction". But when Mr. H. give the house problems I'm completely lost again,but when he teach some example I all understand it. My favorite part of this term is when he gave us the question for the test. I like the ratio table because you can find the answer easily. I guess my marks will go higher in this term.

John's bob

When we start doing proportions, I had no idea what to do especially when we got the blue booklet.But when we get to know more about proportion's I was starting to get it and also the video that Mr.Harbeck showed us it helped me a lot too. I also learned how to use the x k y chart and the ratio table. But when we get to the problem solving sometimes I get mixed up because some of the words it confuses me. This unit was not that difficult especially if you listened carefully. I hope that I did a good job in this term.

BOB-Proportional Reasoning

When the first time I heard proportion, I thought that it was hard. At the first time we work on it I really thought I can't do it because I didn't know how to do it,but when Mr. Harbeck teach us the precious "XKY CHART,the unstoppable "RATIO TABLE", and last but not the least the prestigious "EQUIVALENT CHART".When I first saw the questions and the problem of the blue book I thought that i can't answer anything but when we learn that three wonderful solution i can answer all of that horrible and scary questions. The hardest part was when I had to made rectangles.I learn more in this topic and I really learned about the 3 solution. In the most of time I really used XKY CHART because i really think that it's easy.Sometime i find many hard question on it.


BOB-Proportioanl Reasoning

I thought proportioanl reasoning was going to be hard but after the explanations from Mr. Harbeck, I thought it was easier. At first when Mr. Harbeck handed the blue books out to us, I looked through it and I thought it was really hard. After learning how to use the ratio tables, xky chart, and equivalent fractions, the blue book wasn't so hard after all. The most difficult thing for me now is knowing when to put the right numbers in the right place. For example, how to use equivalent fractions, I need to learn where to put the right numbers in the denominator and the numerator place. Sometimes the larger numbers go on the top and I would have switched the answer around. Other than that everything is just fine.

BOB ; Proportional Reasoning

This unit was an interesting unit to work on because there were a few challenges and a few .. NON-challenges, i guess. "XKY" charts: I understood them because they were well-explained and they were easy to understand, but not at first. At first i was REALLY confused with them, but now i'm okay. Ratio tables: I understood them because just looking at them made sense and they were easy to use because of the making of the unit rate. I learned that finding the unit rate makes it easier to complete a ratio table. One thing i found out was that if an "XKY" chart, ratio table, or equivalent fraction pops up in your mind when you look at a question, then odds are ; that's the best way to figure out the question because it's easier to see or to work with. The blue book: I found easy and hard at the same time. But i found the lines, (instead of the rectangles and squares), the easiest because it was easy for me to solve, rather than the rectangles and squares. Overall, i liked this unit because it taught me a lot: how to use an "XKY" chart; how to use a ratio table; how to figure out proportion word problems, (which i understood after the first or second question!).

BOB - Blogging on Blogging

I think that this unit was a long stretch for my mind. I think that I struggle for the most part of this unit. The easiest thing in this unit was the number lines in the blue booklet and the shading in the percent. The hardest part of this unit was learning how to use the "XKY" charts but now I know understnad how to do them. I think that I really have to try a bit harder. For me that how my unit went...i hope that I do better for the next unit.


BOB Proportional Reasoning

This unit has been a challenge for me. I've learned how to do a ratio table, an XKY chart and how to solve proportion word problems. The first time I got the blue booklet and i looked through the pages, I thought it was so hard. Fact is I found it quite easy. So the easiest thing for me in this unit I think would be doing the blue booklet. Drawing on the scale was the easiest. The quiz we had I found hard to do. I just didn't get it, but when I learn it I'll remember it for the next test.

- - Maxine 8-17

BOB's-Proportionat, Reasoning

I had no idea what proportionat reasoning was. I thought they were like ratios or a a portion of something or a piece. In a way I was right. I thought it may be confusing. When you gave us the blue booklet I was confused. I looked at the questions and thought to myself, are these really the questions? Simple fractions. I was wrong these thingas can be difficult, some require you to think really hard but others you get in a snap.I learned how to use equivalent fractions to solve problems first(I've always been a fraction person)the the xky chart next and lastly the ratio table. I think the most difficult part about proportional reasoning is reading the question carfully. This unit has taught me how to use these strategies(equivalent fractions, xky chart and ratio table) to figure out many other questions than just proportionat reasoning.

Summitted by J K Rowling(janna)

Tuesday, February 06, 2007

BOB-proportional reasoning

proportions and ratio????it really gave me a hard time doing it because there are relationships with numbers and i kinda don't like relations with numbers....but as we go through this topic i understand it little by little on how to solve word also made the topic more easier when Mr.Harbeck gave us more ways like ratio table and xky charts.but i really can't understand until now the double the size of the shape like on the quiz....

I think the easiest thing i did was the white paper and the hardest was the double the size of the shape.i hope i can pass the test now that i understand how to do the proportions and ratio...

****pAoLa ****

Bob- proportional reasoning

At first, when Mr.Harbeck told us that we will learn about Proportion, I was scared if it was going to be hard, but every time we learned proportion, it was getting easier and easier. I was glad that it was easier than I thought. The easiest part was the first 2 pages of the blue booklet. The word problems are still little confusing because I'm not sure where the numbers have to go, but I noticed that some word problems are easy too. I think this unit would help me a lot in the future.

-Boeun S. 8-17-

BOB - Proportional Reasoning

During this unit, I’ve learned multiple things about proportions and ratios. When we first got the blue booklet, I thought that it would have been difficult to do; the fact that I didn’t understand much about it. As time passed, I’ve learned how to use XKY charts, ratio tables, and equivalent fractions to solve problems. I also found proportions easier than I thought.

What I found easy was trying to complete the shapes in our blue booklet so that it is equivalent to the fraction given. What I found hard was reducing and enlarging the shape (like the one on the quiz) because it confused me a whole lot. This unit has taught me a lot on how to use these strategies to solve some problems in real life.

>>Marielle D. 8-17

BOB-proportional reasoning

proportional reasoning??? well, at first i thought its gonna be hard. but when mr.h gave us a blue booklet, and taught us how to solve the problems from the blue booklet, i realized that its not that hard. and yeah, i learned lots of things from this term. and i learned three ways in solving some problems like equivalent fraction, x k y chart and ration table. x k y chart and ratio table was kind of confusing but i still use it in solving problems. oh yeah, i was also confused in word problems, because i really dont know how to solve it like the one from the test:D.. the easiest part that we did is doing the blue booklet and the most difficult part is when we were learning about word problems... i really hope that i really did a great job in this term. im expecting that i will learn more things in the next term...

Rivka Cabalquinto-8-17

Andrea's B.O.B =)

Proportion: The first time I heard that word, I thought it was hard to figure out. But when the class finished the unit, I was glad that I was wrong. It's really easy to do if you fully understand everything Mr. H had said. All I did was I payed attention. At the end, I didn't have any trouble on answering word problems.

And that's the best part. I thought word problems was going to be hard, because some word problems are long. But Mr. H was right, if you can read, then you'll be able to answer the problem. Now, doing word problems became easy, whether in equivalent fractions, ratio tables and XKY forms. But I guess I got used to the 1st way, equivalent fractions. So I often used that one.

BUT, I find the decreasing-increasing-the-original-size part really confusing. And too bad, that is a part of the quiz/test. :'(

In this unit, I learned a lot, and I hope to learn more next term!

`Andrea Tria, 8-17

<<<_NiCoLe'S B.o.B._>>>

Before, I don't like it. But I know that even if it is not exciting for me unlike the other lessons that we already tuckled, I should study about it and ask someone to explain it to me so that I can understand it. Besides, it is my responsibility as a student and it will help me a lot to apply it to my everyday life and it will help me especially in my future.
The things that I don't understand before was...
1.How do you know that the keyword is right.
2.What do you have to do to be able to get the answer in 3 ways.
3.How to use the "RATIO TABLE".
4.How to use the "X K Y" chart.
5.How do you know that the numbers that are in " RATIO TABLE and X K Y" chart were the right numbers.
Until now, I still don't know how to answer if the number is not a happy number.
But now, I already understand all of it. I asked my seatmate(Andrea) and my other friends and they all did a very great job explaining it to me. With their help, I understand all of it now.
All I can say for now is "GOODLUCK FOR OUR TEST TOMORROW!!!" ...
_-Patricia Nicole-_.... :)

Camille's B.O.B.

At first, I thought that learning Proportional Reasoning was hard. But when we started doing the blue booklet, I found out that it was easy. Well, some of them were easy and some of them weren’t. I learned a lot of things this term. For me, the easiest part was solving the word problems using the x k y, ratio table and the 1 other way. The hardest part was enlarging and decreasing the original size (just like the quiz). I think that the x k y chart and the 2 other ways to solve the questions were easy to do. I’m expecting to learn a lot more about something next term.

Camille T. 8-17

BOB-Proportional Reasoning

When we started to learn Proportional Reasoning, i was completely lost. I had no idea on what to do and didn't understand anything. As we learned more about proportional reasoning, I started to understand it a bit more and now, i understand it alot... kinda. I learned a lot of things from this unit... from X K Y charts to Ratio Tables. What i found the easiest to do was probably the first page of the blue booklet. I'm still a bit confused on the word problems, because i get confused on which number goes where, but some word problems i do understand. This unit has pieced my understanding very slowly, but I've learned a lot of things that i can use in my day-to-day life.

Jakes Mangoalie - 8-17

BOB-Proportional Reasoning

Well, in my opinion I thought that proportional reasoning was going to be really difficult. When I saw the blue booklet and when Mr. Harbeck gave us those questions, I really thought maybe I would have trouble with this unit.
After learning how to use ratio tables, XKY charts, and equivalent fractions to solve problems. I noticed that these questions weren't that hard. I think the more difficult part about proportional reasoning is not knowing which numbers go where and which chart to use. This unit have taught me a lot about how to use these strategies in real life.

Jaymie S. of room 8-17

Monday, February 05, 2007

Thursday Class (Feb1) AlexM

*What is the best deal?

1. 20ft2 area rug $150

2. 10ft2 area rug $60

3. 40ft2 area rug $220

How to compare...