## Sunday, December 17, 2006

### Josh'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. (suggestion gliffy is an excellent tool for adding detail to your definition.)

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 the same because you can convert 3/5, 3:2, and 60% into each other.

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).

1. 80 divided by 100 = 0.8, 0.8 x 35 = 28

2. 80 divided by 10 = 8 or 10%, 8 x 3 = 24 or 30%, 8 divided by 2 = 4 or 5%, 24 + 4 = 28 or 35%

3. 80 divided by 20 = 4 or 5%, 4 x 7 = 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!

https://beta.blogger.com/comment.g?blogID=28281661&postID=2980960493616467332

I think this is a really good site because it deals with percents, decimals, ratios, and fractions. They also have pictures to help you understand what they are talking about. I think this site could really help you if your confused about something.

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 could be correct. She could be right if the number of students in her class is greater than the number in Ms. Lowrey's. If Ms. Stanzi has 50 kids in her class then 25 of them {50%} met their reading goal. If Ms. Lowrey has 40 kids in her class then 22 of them {55%} met their reading goal. But if they both have the same number of kids in their class Ms. Stanzi would be wrong.

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?

You divide 16 by 40 = 0.4 x 100 = 40

b) What is 120% of 30?

You go 30 divided by 10 = 3 or 10%

3 x 12 = 36 or 120% of 30

#### 1 comment:

Anonymous said...

Setup
5/5
Question 1
10/10
Question 2
7/10
Comments: All you need to do is explain in numbers why theyre equivalent
Question 3
4/10
Question 4
5/5