Monday, December 18, 2006
Stephanie's Percentage Growing Post
It is an equivalent fraction out of 100 you will know it is a percent because you'll see this sign after the number %
Question 2;
How are three fifths (3/5), 3:2, 60%, and 0.6 all the same? Use pictures and words to show your answer.
They are all equivalents.
Because 3:2 , you add the two numbers together and you get 5 and that is the denominator and the first number of the ratio is the numerator so it's 3.
Then i would be 3/5.So both are the same value.
Now 60% is the same to all of these because to find a percent you have to divide numberator(3) by the denomenator (5) then you multiply it by 100 and you get 60% (n/d*100=%).
So that means it is similar because 3/5 = 0.6 * 100 = 60%.
Question 3;
Show 3 different ways to fine 35% of 80.There are 100 squares in each:100 divided by it gives you 1%. So its 80 divided by 100 which equals 0.80.8 is how much one area of a square equals.
4;Find a link to blogs that deal with percentages. Leave a comment behind and add the link with a review.I left a comment on this person’s blog.http://linden8z.blogspot.com/2006/12/review-of-percent.html
Question 5;
The principal announced that 50% of the children in Ms. Stanzi's class met their reading goal for the month and that 55% of the children in Ms Lowrey's class met their reading goal for the month. Ms Stanzi said that a greater number of her students met their reading goal. Could Ms Stanzi be correct? Why or Why not.
Ms. Stanzi: 40/2=20
Ms. Lowrey: 40/1.5=26.66
Question 6;
Use a hundred grid (unit square) to illustrate the following questions. Once you have explained and illustrated what the question means solve it.
a) 16 is 40% of what number?
b) What is 120% of 30?
I did it On PAPER =P
Sunday, December 17, 2006
Sarika's Growing Post
What is a good definition of a percent? You should use words symbols, pictures and numerical examples in you definition. (Suggestion gliffy is an excellent tool for adding detail to your definition.)
A percent is a number that you get out of a whole by dividing by 100. Example, if you got 18 out of 20 on a test that be 90% by dividing 18 by 20 you would get 90
Question # 2
How are three fifths (3/5), 3:2, 60%, and 0.6 all the same time? Use pictures and words to show your answer.
Decimal
0.6 = 0.6 * 100 = 60%
60/100 = 3/5
100 – 60 = 60:40 or 3:2Ratio
3:2 = N-N = 3/5
3/5
3/5 * 100 = 60%
60% = say it, write it, 60/100 or 3/5
60 /100 = 0.6
100 – 60 = 60:40 or 3:2
fraction
3/5 = 3/5 * 100 = 60%
3/5 = 0.6
3 – 5 = 3:2
Question # 3
Show 3 different ways to find 35% of 80. (Bubbleshare is an excellent tool to animate the many different ways of finding this answer.)
frist way
80/100 = 0.8
0.8 = 1%
35 * 0.8 = 28
second way
80 / 10 = 8
8 = 10%
8 + 8+ 8+4 =28
10 + 10 +10 +5 = 35
28 = 35%
80/2 = 40
40 = 50%
40 /2 = 20
20 =25%
0.1/80 =8
8=10%
Question # 4
Find a link to blogs that deal with percentages. Leave a comment behind and add the link with a review (what the post was talking about …yes you have to read the post and why others should read the post) hint in side the side bar there are link to other schools. Three of them done work on percentages!
8M Math: Understanding Percentages
Question # 5
The principal announced that 50% of the children in Ms. Stanzi's class met their reading goal for the month and that 55% of the children in Ms Lowrey's class met their reading goal for the month. Ms. Stanzi said that a greater number of her students met their reading goal. Could Ms Stanzi be correct? Why or Why not.
Question # 6
Use a hundred grids (unit square) to illustrate the following questions. Once you have explained and illustrated what the question means solve it
16 /40 * 100 =40%
B) What is 120% of 30?
120% of 100 is 120120/100=1.230 x 1.2=36120/100 = 36/30