Tuesday, November 21, 2006

VANESSA'S SCRIBE

Today we spent most of the class writing this in our math notebooks:

FRACTIONS

Converting Fractions to Decimals
Divide the numerator by the denominator to get the decimal.
N/D=decimal
e.g.
¾ 3 / 4 = 0.75

Converting Fractions to Percents
There are two possible ways:
Multiply the numerator by 100 and divide it by the denominator.
N x 100 / D = Percent
e.g.
¾ 3 x 100 = 300

300 / 4 = 75%
OR
Divide the numerator by the denominator and multiply by 100.
N / D x 100 = Percent
e.g.
¾ 3 / 4 = 0.75

0.75 x 100 = 75%

Converting Fractions to Ratios
Part 1 : Part 2
Part 1 is the numerator.
Part 2 is the numerator subtracted from the denominator.
N : D-N
e.g.
¾ 3 : 1


DECIMALS
Converting Decimals to Fractions
Say the decimal then write it.
e.g.
0.42 (forty-two hundredths)
42/100

Converting Decimals to Percents
Multiply the decimal by 100
e.g.
0.42 x 100 = 42%

Converting Decimals to Ratios
Convert the decimal to a fraction first.
e.g.
0.42 → 42/100
Part 1 in the ratio is the numerator.
Part 2 in the ratio is the numerator subtracted from the denominator.
N/D N : D - N
e.g.
0.42 42/100
42 : 58
.........^100 - 42 = 58

PERCENTAGES
Converting Percents to Decimals
Divide the percent by 100.
% / 100
e.g.
57% / 100 = 0.57

Converting Percents to Fractions
The percent is already out of 100, so the denominator will be 100.
The actual percent is the numerator.
e.g.
57% 57/100

Converting Percents to Ratios
Part 1 is the actual percent
Part 2 is 100 subtracted by the percent
................(100 - % )
e.g.
57% 57 : 43
......................^ 100 - 57 = 43

RATIOS
Converting Ratios to Fractions
Part 1 + Part 2 = denominator
Part 1 = numerator
e.g.
7 : 3 7/10

Converting Ratios to Decimals
First convert the ratio to a fraction.
e.g.
7 : 3 → 7/10
Numerator is 7 because its Part 1. Denominator is 10 because part 1 + part = 10 ( 7 + 3 = 10 )

Then divide the numerator by the denominator to get the decimal
N / D = Decimal
e.g.
7 / 10 = 0.7

Converting Ratios to Percents
First convert the ratio to a fraction.
e.g.
7 : 3 7/10
Numerator is 7 because its Part 1. Denominator is 10 because part 1 + part 2= 10 ( 7 + 3 = 10 )
Then divide the numerator by the denominator to get the decimal
N / D = Decimal
Next multiply the decimal by 100 to get the percent
Decimal x 100 = percent

e.g.
7 / 10 = 0.7
0.7 x 100 = 70%

After you've finished copying the above information into your notebook, you need to write it again in the big paper, in rows 4 and 5.

Then we spent the last 15 minutes working on " Equivalents the Assignments. "

HOMEWORK
"Equivalents the Assignment"
4 questions, Mr. Harbeck already posted it (scroll down to last post)

Stuff we did so far and need to be completed (portfolio):
1. Equivalent Chart
2. Big Paper
3. Quiz
4. Equivalent Assignment

NEXT SCRIBE : April T

3 comments:

Mr. H said...

Wow Vanessa. Great Scribe. Your use of minimal colour changes makes it easy to see the different sections of this scribe. You have tremendous detail. To make this scribe even greater you need to add some links to helpful sites and perhaps some questions for students to answer. YOu could use some of the examples from your homework!!

Great Job

Harbeck

Janna said...

Great scribe Vanessa. Hope your foot heals really good!!

wes said...

hey
Great Scribe...it was very neat and organized


wes