Tuesday, November 21, 2006

Today's scribe post

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Tuesday, November 21, 2006.

In class today, we learned about Fractions, Decimals, Percentages and Ratios.

Fractions
Numerator/Denominator

How to turn a fraction to a decimal:
You take the numerator and divide it by the denominator.

For example: 4/5

4 divide by 5 = 0.80

How to turn a fraction to a percentage:
You take the numerator and divide it by the denominator and then you times it by 100 to get the percentage.
For example: 4/5
4 divide 5 = 0.80 * 100 =80%

How to turn a fraction to a ratio:
Part 1 : Part 2
Part 1 ---> Numerator
Part 2 ---> Denominator subtract Numerator

For example: 4/5

Part 1 ---> 4
Part 2 ---> 5-4 = 1
4:1




Decimals
.
To turn a decimal to a fraction:
When you see a number with a
decimal, you have to SAY the number... then you will write it out.
For example:
.67 is the number
you say it ---> 67 hundredths
the you write it ---> 67/100

To turn a decimal to a percentage:
You take the decimal and times it by 100.

For example:
.67 * 100 = 67%

To turn a decimal to a ratio:
The easiest way to turn the decimal to a ratio is to turn the decimal to a fraction first.
Then you will take the numerator of the fraction as part 1. Take the denominator and subtract the numerator from it and you will get the part 2 as your answer.

For example:
.67 ---> 67/100
100 - 67 = 33

Percentage
%
To turn a percentage to a decimal:
You take the percentage and you divide it by 100.

For example:
23% divide by 100 = .23

To turn a percentage to a fraction:
You take the percentage as the numerator and if the percentage is less than 100, than you put the denominator as 100. If it's more than 100, than the denominator is 1000 etc.

Example 1:
23% is less than 100
23%/100

Example 2:
783% is more than 100
783%/1000

To turn a percentage to a ratio:
You take the percentage and subtract it by 100 (or by the value of the number).
Part 1 ---> percentage
Part 2 ---> 100 - percent

For example:
Part 1 ---> 23%
Part 2 ---> 100 - 23 = 77
23 : 77


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Ratios
Part 1 : Part 2
To turn a ratio to a fraction:
You take the part one of the ratio and you use it as the numerator. For the denominator, you will have to use part 1 AND part 2 for the denominator.

For example:
7 : 3
Part 1 ---> 7
Part 2 ---> 7 + 3 = 10
7/10

To turn a ratio to a decimal:
You will have to turn the ratio to a fraction first. Then you take the the numerator and divide it by the denominator.

For example:
7 : 3 ---> 7/10
7 divide by 10 = .70

To turn a ratio to a percentage:
First you will have to turn the ratio to a fraction. After that you will take the numerator and divide it by the denominator to get a decimal. Then you times the decimal by 100.

For example:
7 : 3 ---> 7/10
7 divide by 10 = .70
.70 * 100 = 70%


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These are some fun sites that might you might want to like at and check it out. These sites would help you to understand more about fractions, percentages, ratios and decimals alone, and converting them. Also, in one of the sites, there are some fun math games that you might like.


http://www.factmonster.com/ipka/A0881930.html
http://www.mathgoodies.com/lessons/vol4/meaning_percent.html
http://www.mathgoodies.com/cd/Objectives/objectives_vol4.html



Homework:

The stuff that we wrote from the white board should be copied down into your big, long sheet. Write all the stuff in boxes four and five and box 3 should be full of pictures.

EQUIVALENTS THE ASSIGNMENT

You should be able to find this assignment in our homeroom blogger and you should have finished this for homework. This is needed for your portfolio so make sure you finished it.

THINGS YOU NEED TO HAVE DONE:
1. Equivalent Chart
2. Big Paper
3. Quiz 1 and 2 (with corrections)
4. Equivalent Assignment #1
5. Equivalent Assignment #2 (number line)
6. Assignment #3
7. Pre-Test (with corretions)
9. Test (with corrections)

The next scribe person will be Jessica G. because she wanted to do it today. =)
K.V. 8-41

Changes I made:
-I added some of the things that are needed for the math portfolio
-I added some links for fun math websites about conversions
-Changed some of mistakes on scribe, like spelling, aligning...etc



10 comments:

oranges said...

wat do we put on row 3,4, and 5 on the long paper???

michelle 8-16 said...

Great use of color!

Mr. H said...

This is a very consistant use of colour. It is not overdone. I appreciate all the work you have done. To make it better find some links or add some questions we could do to further understand the topic.

Thanks for all you hard work.

Harbeck

Melvin841 said...

Goood thing yoou put the things that were needed done and good post

Katira_M said...

Thanks a lot for putting the homework down!! XD I almost forgot!!

mMm dela cruZZZ said...

it looks so pretty with all those colours. good job =)

tears_77 said...

good job Kim !!! keep it up

Mr. H said...

This post is getting better all the time. You have done really great edits. To make this hall of fame worthy you need to add images. I would love to place it in the hall of fame if you make these final edits.

Keep on editing
Harbeck

.:THE SOUP MAN:. said...

I love what you did with the Bubbleshare slideshows. It was really effective. The colour use was quite good. Your "Hall of Fame" add was well deserved.

Good Job!

ardia=)_841 said...

WOAH!!!! thats so awesome!!! haha i love the pictures and everything .. nice job =)