## Thursday, December 21, 2006

### Mark Balderas' 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.)

- a percent is a number out of 100. it is also called "per centum".
the term per means "by the hundred" and the term cent means 100.

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.

- 3/5 = 3 divide by 5 = 0.6 x 100 = 60%
- 3:2 = 3/5 = 3 divide by 5 = 0.6 x 100 = 60%
- 60% = 60%
- 0.6 x 100 = 60%

as you can see.. they all have the same value.

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).

-
100 divided by 100 = 1%
80 divided by 100 = 0.8
0.8 x 35 = 28

- 80 divided by 2 = 40 = 50 %
40 divided by 2 = 4 = 5 %
40 - 4 - 4 - 4 = 28
50% - 5% - 5% - 5% = 35%

- 28/50 = 35/100
35 divided by a 100 = 0.35
0.35 x 80 = 28%

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=33406999&postID=3554359283139302086

i left a comment on this post about 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.

20 divided by 40=50% 11 divided by 20=55% Ms. Stanzi is right because theres more kids in Ms. Lowrey's class.

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.

16 is 40% of what number?
- 16 divided by 40= 0.4 x 100 = 40

What is 120% of 30?
- 30 divided by 120 = 0.25 x 100 = 25

#### 1 comment:

ruusty816 said...

Setup
4/5
Question 1
8/10
Comments: good definition, but no picture
Question 2
8/10
Question 3
0/10