## Friday, December 15, 2006

### StEven'S GroWin PoSt

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

A percents is a number out of 100.

2)
How are three fifths (3/5), 3:2, 60% and 0.6 all the same? Use pictures and words to show your answer.
3:2 is the same because if you convert the ratio it would be 3/5 (3+2=5 3/5 and 0.6.

3)Show 3 different ways to find 35% of 80.

1.100/100=1
70/100=0.7
0.8x35=28

2. 60/2=30=50%

6/2=3=5%

28/80 = 35/100
28 / 80 = 0.35
35 / 100 = 0.35

4)
Find a link to blogs that deal with percentages.

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.

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?

A./ 16 is 40% of what number ?
....
40 / 40 = 1
16 / 40 = 0.4
0.4 x 100 = 40
16 40
_________
40 100

b) What is 120% of 30?

B./ What is 120% of 30?