## Sunday, December 17, 2006

### Jorel's Percentage Growing Post

Question 1

What is a good definition of percent? You should use words symbols, pictures and numerical examples in your definition

Question 2

How are three fifths (3/5), 3: 2, 60% and 0. 6 all the same ? Use pictures a nd words to sho w your answer.

if you all convert them all to decimal, you will all see that they are equivalents, they are all 0.6

if you divide 60 by 100 you'll get 0.6

60% / 100 + 0.6

add 3and 2 together, that's the denominator. the numerator is 3

3:2= 3/5=0.6

divide 3 and 5 and you'll get 0.6
3/5=0.6

Question 3

Show 3 different ways to find 35% of 80. (bubbleshare is an excellent tool to animate the many different ways of finding these answer).

a) 35% /100=0.35x80=28

b) 80/100=0.8 or 1% x 35 = 28

c) 80/4=20 or 25% 80/10=8 or 10%

20+8=28 or 35%

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 the side bar there are links to other schools. Three of them have done work on percentages!

I found this blog http://linden8m.blogspot.com/ and its awesome.

you can learned how to convert percent into fraction and decimal if you still don't know

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.

the answer of is defend on the number of Ms. Stanzi's students compare to the number of the

students in Ms. Lowrey's class.

because for example if Ms. Stanzi have 200 students and Ms. Lowrey only have 100, Ms. Stanzi

would have more students who mer their reading goal.

Stanzi= 200 / 2 =100 or 50% 100 students met their reading goal in here

Lowrey= 100 / 100 = 1 x 55 = 55 or 55% 55 students met their reading goal in here

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?

40% x 2 = 80%+20%=100% 40% = 16 / 2 = 8 or 20%

16 x 2 = 32 + 8 = 40 or 100%

b) What is 120% of 30?

0.3 x 20 = 6
100% = 30
20% = 6
100% +20% = 120%
30 + 6 = 36 or 120%

I have left comments at Aaron's and Christian's Percentage Growing Posts.

/ andrea ; said...
This comment has been removed by the author.
/ andrea ; said...

Setup
5/5

Question 1
7/10
Comments: I think that a picture isn't just enough, maybe add a little short explanation. But good work on the diagram btw!

Question 2
8/10
Comments: At first I think you should explain this furthur. But I decided to give you an 8 because I think you did a GREAT job explaining . :D

Question 3
4/10
Comments: Uhm, good explanation and solving but I think you should add a picture made in Gliffy or wherever & upload it into Bubbleshare.

Question 4
2/5
Comments: Nice choice of site but maybe leave a comment behind (i'm not soo sure if there is because i can't find it!)

Question 5
6/10
Comments: I say maybe add a picture from Gliffy and more effort , dude! (not to be mean or anything..)

Question 6
11/15