Showing posts with label equivalents. Show all posts
Showing posts with label equivalents. Show all posts

Tuesday, November 28, 2006

Maxine's Scribe Post: Equivalents

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So today in class we corrected our homework. We had to convert numbers into fractions, decimals, percents or ratios. For example 35.5%
Fraction - 355/1000 (hint: If you have a decimal number and you want to get into a fraction you take away the decimal and add a 0 to the denominator)
Decimal - 0.355
Ratio - 355:645

Next you have to place it onto a number line. You have the raw numbers on the top and the equivalent you choose on the bottom. Remember to put the markers because you will have to use them on the test. (0, 25, 50, 75, 100)




If you have any questions about this or need help just ask me and I'd be happy to help.

After we went over that Mr. Harbeck put up an Equivalents Pre-test. You had to fill out a chart and using NO CALCULATOR.


Convert the following values so that you can place them on the number line below. Show all your work.

Try to convert some of your own like 3:2 into a fraction. Or the ones that you find hardest even if you don't want to it'll be for the best!


Try 5/10 into a percent, 0.66 into a ratio, and 46:98 into a decimal.


After you have filled out this chart you have to place the numbers on a number line. *Remember that the raw numbers go on the top and which ever equivalent you choose goes on the bottom, put your markers before you put your numbers*


If you do not get this once again you can always ask me anything. I'm serious!
There was also one more question.
6, 6, 8, 14, 14
How could you determine whether the average of these numbers is greater than 10 without acually computing the average? Explain how you you decided if the average was more than 10 or less than 10.
BTW - You should have your big paper done because it can come in useful. And the unit book is gonna be due on Friday, I think. So have everything ready! And go over the mean, median, mode and range just in case :)
Some websites that can help you study are:

Conversions and Equivalents

Word problems using Equivalents


Ratios
Well that sums it up and I'm gonna choose Boeun to be the next scribe.

Math Pretest Equivalents

Math Pretest

Convert the following values so that you can place them on the number line below. Show all your work.



0.175

55%

3:10

15/51

9:3






How could you determine whether the average of these numbers is greater than 10 or less than 10 without actually computing the average. Explain how you decided the average was more than or less than 10.

Monday, November 27, 2006

Marielle's scribe post: equivalents

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During our second period of math (6th period) we first worked on our equivalents numberline (assignment #2) on the long graph paper Mr.Harbeck had given us.


Your finished assignment should look similar to this :





After being given almost half the class to finish the numberline, we were given another assignment titled "Equivalents Assignment 3". It consisted of 4 questions about percent, decimal, ratio, and fraction. You had to convert each one to each of the 4 listed (fraction, decimal,ratio, percent). At the bottom of the questions were the 'personal reflection' which also had to be answered too. If you did not copy down all the questions in class, assignment #3 can be found at the link below:
http://sargentparkmathzone.blogspot.com/2006/11/equivalents-assignment-3.html


If you have forgotten how to convert fractions to decimals or any others, just check your big paper, or janna's scribe (located under Cj's). You may also use these sites I've found:
http://sjh.hsd.ca/deruyck/images/junereview.htm
^^ this site talks about everything we have learned so far in math class. It also contains other things related to math like how to solve word problems, dividing/multiply fractions, and many more.

http://www.sparknotes.com/testprep/books/sat/chapter10section6.rhtml
http://content.class.com/c3_content/lor/mathematics/alg_percents/html/0302_0201.htm



This all pretty much ended our day. Tomorrow there will be a "pre-test" about ratios, fractions,percents, and decimals. The next scribe will be maaxineriLaaay :) [Maxine A]


`Marielle D. 8-17





Cj's Scribe Post: Equivalents

Today, during our first math class, Mr. Harbeck showed us these pieces of data:







With these pieces of data, we were to construct a number line arranging these pieces of data in numerical order:






First, we were to complete a table that showed: the decimal, percent, ratio, or fraction, (that was equivalent to all of the pieces of data); the pieces of data; and all of the equivalents in numerical order:









Then we were to start a rough copy of what we were going to put on the long sheet of graph paper, Mr. Harbeck would be handing out:







On this long sheet of graph paper, we would put what we placed on our table; but the pieces of data would either above or below the number line; showing us what equivalent it matches up with. The equivalents would then be placed above or below, (depending on where you put your pieces of data), and it would, too, match up with its equivalent. However, the numbers would not just be placed ANYWHERE on the number line, but it would be arranged from SMALLEST to LARGEST. In this case below, the pieces of data and equivalents are arranged from 0.1-1.0:









THE NEXT SCRIBE POSTER IS DOCTOR, (MARIELLE D the MD).

Saturday, November 25, 2006

!!!Janna's Scribe Post!!!

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Well, since Aaron didn't complete or try to do his scribe I get to do the honours of replacing him. To start off class we looked at our homework as quick as we could since we didn't get math the next day(which was Wednesday). Our homework was to find the formula of getting the following below:

Ratio:
to Fraction: The first number or part of the ratio will be the numerator of the fraction. Add the numerator and the denominator to get the second number in the fraction. Part to part.

Example: Ratio is 3:1. Numerator is 3 since 3 is the first number. 3+1=4. 4 is the denominator.

to Decimal: Get a fraction from the Ratio by using the formula above. Then divide the numerator by the denominator to get the decimal.

Example: Ratio is 4:2. Fraction is 4/6. 4 divided by 6 = 0.666666666667

to Percent: First get a fraction form the Ratio. Take the Numerator and divide it by the Denominator to get a decimal. Multiply the decimal by 100.

Example: Ratio is 2:5. Fraction is 2/7. 2 divided by 7= 0.285714 (repeated) x 100= 28.5714285714

Fraction:
to Decimal: Divide the numerator by the Denominator

Example: Fraction is 3/5. 3 divided by 5 = 0.6

to Percent: Divide the Numerator by the Denominator. Take the decimal and multiply it by 100.

Example: Fraction is 1/3. 1 divided by 3 = 0.333333(repeated) x 100= 33.333333(reapeated)

to Ratio: Take the Numerator and make it the first number in the ratio. Then add the numerator and the denominator to get the second number in the ratio.

Example: Fraction is 4/1. 4 is your first number or part. 4+1=5. 5 is your second number or part.

Decimal:
to Fraction: Say the number --> Write the number.

Example: Decimal is 0.48. Say it. 48 hundredths. write it, 48/100.

to Ratio: Turn the decimal to a fraction first. Then take the numerator and make it the first number in the ratio. Take the denominator and subtract the numerator from it to get
the second number in the ratio.

Example: Fraction is 3/8. 3 is the numerator so its the first number or part. 8-3=5. 5 is the second number or part. Ratio is 3:5

to Percent: Take the decimal and multiply it by 100. Simplify if you can.

Example: Decimal is o.83. 0.83 x 100= 83 83/100

Percent:
to Ratio: Take the percentage and get rid of the percent sign. That will be the first number or part. Then subtract the percentage by the value of the bottom number(usually 100) to give you the second number or part.
First number in ratio = the
percent
Second number in ratio = (value of number e.g. 100) 100 - percentage

Example: Percent is 46%. 46

to Decimal: Take away the percent signs and divided by 100.


Example: Percent is 37%. 37 divided by 100=0.37

to Fraction: Since percents are out of 100, just take the percent put it over 100 and take away the percent signs. Then Simplify.
Example: Percent is 77%.




HOMEWORK:

Complete the following for our portfolio's':
1. Equivalent Chart
2. Big Paper
3. Quiz 1
4. Equivalent Assignment
5. Quiz 2

Our homework was to finish off boxes four and five on our big papers. It would be ___ to ___ in box 4. Then in box five the formula. (box 3 should be full of pictures).

Also the Equivalent worksheet found below my post, should be completed. The one where you have to find 4 decimals using 1-2-3-4-5-6-7-8-9 and then use your formulas to get the fraction, ratio and percent for them all.

Some websites you can visit are found below:
http://www.mathgoodies.com/lessons/vol4/meaning_percent.html


This site gives you different questions for fractions, ratios, decimals and percents, such as finding fractions from coloured grids. Then compare it to other fractions, ratios, decimals and percents. It also gives you the answer when you click on the word "answer". It includes questions and some ways of solving these problems.

http://www.aaaknow.com/pct.htm
This site shows you formulas to get certain thins from something. Such as a fraction to a ratio ...etc. It is not as useful as the first site above, but it does help if you get stuck on the homework and work shown above in my scribe.


The Next Scribe Is Carmie-Jane (C.J.)



Tuesday, November 21, 2006

Equivalents the Assignment

Equivalents The Assignment

1. Make 4 different fractions using the digits below. You may only use each digit once. Convert these 4 fractions into decimals, percents and ratios.

1, 2, 3, 4, 5, 6, 7, 8, 9

2. Make 4 different decimal using the digits below. You may only use each digit once. Convert these 4 decimals into fractions, percents and ratios. (Do not use the decimals from the question above).

1, 2, 3, 4, 5, 6, 7, 8, 9

3. Make 4 different percents using the digits below. You may only use each digit once. Convert these 4 percents into fractions, decimals and ratios. (Do not use the fractions and decimals from the questions above).

1, 2, 3, 4, 5, 6, 7, 8, 9

4. Make 4 different ratios using the digits below. You may only use each digit once. Convert these 4 ratios into fractions, decimals and percents. (Do not use the fractions and decimals or percents from the questions above).

1, 2, 3, 4, 5, 6, 7, 8, 9

Friday, November 17, 2006

Rommel's scribe post

The first thing that we did in class was to put the square root unit in order which was... the pink paper, the perfect square chart, the fist journal(which ones the perfect square),journal 2 where you had to draw things,the perfect squre the long paper, estimating square roots using chart and biulding problem, estimating square roots using fractions,recipe quiz 1 corrected,quiz 2 corrected, and the test corrected.

Then we got split in groups and got this paper and cards with pictures of decimals, percent, fractions, and pictures.


Ratio tells how one number is related to another number is related to another. A ratio may be written as " A:B " or the phrase " A to B" . A ratio of 1:5 says that the second number is 5 times as large as the first. The following steps will allow determination of a number when one number and the ratio between the numbers is given.

EXAMPLE :
Determine the value of the B if A:B and hte ratio of A:B = 25

-determine how many times the valiable A is divisible by the corresponding portion of the ratio. (6/2=3
-multiply this number by the portion of the ratio prestenting B(3x5=15)
-Therefore if the ratio of A:B is 2:5 and A=6 then B+15

Next scribe is Fiel