rivka's scribe 12/13/06

- Get Your Own



today we had our math twice... so this is...


- Get Your Own


before we started, Mr. H asked us to glue and shade the grid/squares that we have to put in the big paper. Then when we were done, he taught us how to find 1% and 10%. Here's how we did it:
these things that im going to show should be in the "How to find 1%" column in the big paper.

that --->>>> / means divide...
this square is a 100%, so to get the value of each square you have to divide 100 to 100 (100/100=1) so the value of each square is 1. you can use equivalent fraction so you will know if your answer is right or wrong. checking: divide the shaded squares to 100(shaded squares/100=decimal) after that divide the another fraction which is the value of the square/s divided by the representing number. then the answer of the two fraction should be the same. if it's the same your answer is right.


this square represents 500. to find the value of each square/s you should:


then after we did that, Mr. H asked us to find the 5%, 12% and 86% of 500:



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these things should be in the "how to find 10%" column in the big paper
this is the same as the box that I've shown before, but here you supposed to divide 100 to 10 because the squares that are shaded are 10. 100/10=10 or 10% beacuse we were making 10 equal groups.

this box represents 500, so we need to find the value of each square. like what i said before you have to divide 500 to 100 and you're going to multiply it by 12 (500/100=5x10=50) because there are 10 squares that are shaded. so the value of each squares is 50. there is also a different way to find the value of the squares:500/10=50

these are the answers on how to find 20%, 70% and 5% of 500:



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ooppss... by the way before i forgot.. i've made a mistake on those grids i put 110 squares instead of 100.. sorry guys! i didnt notice! i can't edit it because it's too late!

this is where we stopped.

and this is....

- Get Your Own




Mr. H asked us a question...

If a small square has a value of 0.75 the unit square has a value of?
this is the answer...

(sorry if the picture is small)

after we answer it, we continued completing the big paper.

these things that im going to show should be in "how to find 50%" column in the big paper.

in this part Mr. H told us that if we were going to half something we divide it 2.





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"how to find 25%" column:




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this website is from AMY LY: Here is a link that may help you on solving percentages:http://www.mathleague.com/help/percent/percent.html

Finaly im done! sorry if i didnt explained it well because it's hard to explain here...
oh oh...tell me if there's something wrong with my scribe so i can edit it! thanks!

Shawn's Scribe Post - Percentage

Today in class, we first checked the Problems Of The Week Question which was assigned for homework. We had to do the Visual Question which stated the following :

Consider the shape shown. Can you keep the perimeter the same and make the area smaller? Larger? If so, draw the picture.







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As you can see in the first image which is the original Visual which we are basing our answers off of, has:
- Perimeter of 16
- Area of 9

The second image shows that you can make an object using all the criteria that was used in the first image to make an object that has the same perimeter, but a bigger area:
- Perimeter of 16
- Area of 11

The last image shows that you can also make an object using all the criteria that was used in the original image to make an object that has the same perimeter, just a smaller area this time:
- Perimeter of 16
- Area of 7


We then had to Convert numbers which Mr. Harbeck had made into decimals, ratios, fractions and percentages into equivalents. This is what had been written down as the assignment:

Convert the following into equivalents:

0.65 - 65/100 = 13/20 , 65:35 , 65%

5:2 - 5/7 , 0.714 , 71.4%

17/20 - 0.85 , 85% , 17:3

2.6% - o.026 , 26/1000 , 26:974

These are the answers that were given at the end of this assignment , if there are any questions ask Mr. Harbeck !



The other day Mr.Harbeck gave us the numbers 300 & 85 and we had to find out the following percentages for them :
NOTE: This was given for homework.

1% - 300/100 x 1 = 3 = 1%

10% - 300/100 x 10 = 30 = 10%

15% - 300/100 x 15 = 45 = 15%

25% - 300/100 x 25 = 75 = 25%

50% - 300/100 x 50 = 150 = 50%

75% - 300/100 x 75 = 225 = 75%

In this case the whole 10x10 grid which is 100% is = to 300 because that is the total. That means each square in the grid below has a different value than the value of each square out of a total of 100. ex. 1% of 100 = 1 . So the value of each square in the grid below is 3.




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The following are the number of squares and what the percentage is worth:

1) 1% of 300 = 3 = 1 square
2) 10% of 300 = 30 = 10 squares
3) 15% of 300 = 45 = 15 squares
4) 25% of 300 = 75 = 25 squares
5) 50% of 300 = 150 = 50 squares
6) 75% of 300 = 225 = 75 squares



This is the second part of the assignment which had also been corrected today in class. In this part we had to find out the following percentages for 85:

1% - 85/100 x 1 = 0.85 = 1%

10% - 85/100 x 10 = 8.5 = 10%

15% - 85/100 x 15 = 12.75 = 15%

25% - 85/100 x 25 = 21.25 = 25%

50% - 85/100 x 50 = 42.5 = 50%

75% - 85/100 x 75 = 63.75 = 75%

Now in this scenario the 100% is = to 85 because 85 is now the total. Now each square is worth 0.85 which is 1% of 85



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The following is the number of squares and the value of the percentage for this part of the assignment:

1) 1% of 85 = o.85 = 1 square

2) 10% of 85 = 8.5 = 10 squares

3) 15% of 85 = 12.75 = 15 squares

4) 25% of 85 = 21.25 = 25 squares

5) 50% of 85 = 42.5 = 50 squares

6) 75% of 85 = 63.75 = 75 squares

The homework that was given out today was the Data/Investigations on the Problems of the Week paper. We also had to use 400 & 162 and find out the percentages using the following and then colour them on to the 10x10 grids :

1% , 5% , 10% , 30% , 65% , 85%

The other piece of homework that was given is almost the same thing as the assignment were we have to find specific percentages for two numbers but this time they are all random percentages and numbers. The questions were shown as the following:

What is 45% of 60?

" " 21% of 78?

" " 35% of 18?

" " 91% of 210?

" " 55% of 370?

" " 12% of 125?

" " 70% of 256?

After dooing this assignment you must colour them on the grid paper.

I will post the websites I used at school tomorrow!

The next scribe will be , JACOB MANLIGUEZ !! =P

BTW, here are some helpful links:
http://www.netcomuk.co.uk/~jenolive/percent1.html
http://www.mathleague.com/help/percent/percent.htm

& i also commented on this post: http://apcalc06.blogspot.com/2006/11/scribe-post-day-52.html