Scribe Post for Jan. 30 2009

Today at Math, we did number of the day. Today's number is 2969.402
After that Mr. Isfeld checked our homework from yesterday.

1. 6 - 3x = -6

To remove 6 and leave 3x, subtract 6 from both sides of the operation
6 - 6 - 3x = -6 - 6
-3x = -12
To remove -3 and just leave x, divide both sides by -3
-3x/-3 = -12/-3
x = 4

To verify:
6 - 3x = -6
6 - 3(4) = -6
6 - 12 = -6
-6 = -6

2. 5x/4 + 3 = -7

To remove 3, subtract 3 from both sides of the operation
5x/4 + 3 - 3 = -7 - 3
5x/4 = -10
To remove 4, multiply both sides by 4
5x/4 (4) = -10 (4)
5x = -40
5x/5 = -40/5
x = -8

To verify:
5x/4 + 3 = -7
5 (-8)/4 + 3 = -7
-40/4 + 3 = -7
-10 + 3 = -7
-7 = -7

3. x/5 = -3/4

To remove 5, multiply both sides by 5
x/5 (5) = -3/4 (5)
x = -3.75

To verify:
x/5 = -3/4
-3.75/5 = -0.75
-0.75 = -0.75

I choose Daylan for the next scribepost

Scribe Post for January 28,2009

Today we did Ordering Fraction Strategy.

1. Using Landmarks

Landmarks are thing everybody should know.

eg. - let's meet at Polopark.

- I live near the forks.

Fraction land marks

1/10, 1/5, 1/3, 1/2, 2/3, 3/4, 1/4, 1/1

2. Equivalent Fraction

eg. 11/15 = 22/30 (x2 on numerator and denominator)

7/10 = 21/30 (x3 on numerator and denominator)

Get common denominator or numerator.

3. Convert to decimal

3/5 or 13/20 What is bigger?

3/5 = 0.6/1 ( divided by 5 the numerator and denominator)

13/20 = 0.65/1 ( divided by 20 the numerator and denominator)

Their will be a test tomorrow about a balancing shape

I choose Guiseppe to do the next scribe post.

Scribe Post for Jan. 27, 2009

Today in math class we went to the computer lab and worked on our TLE. Today's lesson in TLE was ORDERING NUMBERS.

Today's objecive was: In this lesson you will learn to compare and order fractions, mixed numbers, and decimals.

-To do number 1 you have to write the method for ordering/comparing fractions with the same denominator. Example: 4/7 > 3/7
-To do number 2 you need to write the methods for ordering/comparing fractions with different numerators and denominators. Example: Which is greater, 3/5 or 4/9?

You need to change the denominator to 45 because it is the LCD of 5 and 9. Then just compare the numerator. There for the answer to this question is 4/9.

-Next you are going to do a vocabulary list which you can find on the glossary.

-In question number 1 in the other page, you need to use the <> symbol to complete the statement.

-Question number 2 is like number three but you need to change the denominator and replace it with the LCD. Which is 63 in this question. Then all you have to do is compare the numerator and write the correct symbol.

-The last question is just to write the following numbers from greatest to least.

Please comment the mistakes that I did. I choose Allen for the next scribe.

Scribe Post for Jan. 26, 2009

Today in math we did our number of the day. The number is 3269.148 incase you weren't here. Remember, its for homework!

We also did this problem.



And then we did our portfolios. We had to order fractions from least to greatest and greatest to least.

I choose Patricia for the next scribepost.

Scribepost for January 23, 2009

The number for Number of the day is 4568.327, if you didnt finish it it class finish it for homework

In Math Mr.Isfeld gave us the answers for the puzzle,

















after that he gave us a folder and 2 sheets that have thinking skills and thinking sense. after he gave us a sheet with these questions and answers

Order the following groups of numbers from least to greatest

1.Q.0.86, 0.87, 0.81, 0.77, 0.50, 0.25, 0.68,
A.0.25, 0.50, 0.68, 0.77, 0.81, 0.86, 0.87

2.Q. 22.987, 22.789, 22.999, 22.199
A.22.199, 22.789, 22.987, 22.999

3.Q. 1.999, 2.001, 3.256, 1.111, 1.234, 1.921
A. 1.111, 1.234, 1.921, 1.999, 2.001, 3.256

Order the following groups of numbers from greatest to least

1.Q. 123.321, 321.123, 333.111, 222.22, 111.33, 213.213, 312.312
A. 333.111, 321.123, 312.312, 222.22, 213.213, 123.321, 111.33

2.Q .1.999, 2.111, 1.111, 2.999, 2.501, 2.510, 1.005
A. 2.999, 2.510, 2.501, 2.111, 1.999, 1.111, 1.005

3.Q. 0.65, 0.06, 0.01, 0.09, 0.90, 0.54 ,0.45
A.0.90, 0.65, 0.54 ,0.45,0.09, 0.06, 0.01

I choose Harvey for the next scribe post

Scribepost for January 22, 2009

Today in math we had a test on measures of central tendency.

The test was out of 42 with questions about mean, median, mode, range, and outlier.

Mean: The sum of the numbers in the data set divided by the total numbers of numbers in the data set.

eg. 10,14, 20, 9. 10 + 14 + 20 + 9 = 53 ------> 53 / 4= 13.25 ------> 13.25=mean

Median: The number in the middle of the data set.

eg. 8, 11, 14, 17, 23. / The middle in the data set is 14.

Mode: The number that appears most in a data set.

eg. 12, 9, 5, 9, 9, 15. The mode is 9.

Range: The number you get when you get the highest number and the lowest number in the data set then subtract the highest number by the lowest number in the data set.

eg. 5, 10 , 15, 20. --------> 20 - 5 = 15 ----------> The range is 15.

Outlier: The number that is greatly lower or greatly higher than the other numbers in the data set.

eg. 14, 13, 79, 17, 21. The outlier is 79.

After you are done your test you were supposed to do your number of the day.

Today's number was 3179.269 remember number of the day is homework everyday.

If you finished your number of the day you were supposed to do a math problem.

If you did not finish this during class time it is homework.




I choose Ezekiel for the next scribe.

Scribepost January 21,2009

Today we did Number of the Day
it helps you do division and multiplication and other stuff.

After we did Number of the Day after we did number of the day we went to do Math Links and we worked on pages 437 and 438.

This stuff will be on the Quiz tomorrow...(i think) so study if your awake at 11:09


The person I choose is .........................Eric Q.Phan tee hee