16/04/07 Scribe

Today, we went over the 2 blue sheets that Mr.H gave to us on Friday to do for homework. My job right now is to explain again about TRAPEZOIDS RULE !!

1. We had to draw out the next two patterns.















2. We had to make a table to show the results of our investigation.


3. We had to describe the patterns found in each row.

Trapezoids :
- adding 2
- starting at 2
- even #'s only
Figure number :
- adding 1
- starting at 1



3b. We had to describe why the patterns increased in the way they do.

x :
- adding new figures
y :
- start with 2 trapezoids
- then add 2 more trapezoids
4. We had to describe the relationship between the two columns.

x to y add 1, add 2, add 3, add 4......
---->

4c. We have to write an algebraic equation and the "language arts" edition to show the relationship.

LA version : two times (the figure)
algebraic equation : 2n

letn = fig. #
n+ n

5. We had to predict what the 20th, 35th, and 99th diagram will look like.
n = figure number

20th- 2n
2 (20)
40

35th - 2n
2 (35)
70

99th - 2n
2 (99)
198

6. We had to predict which diagram will use 30, 50 and 125 blocks.

30 blocks - 2n = 30
2 (15) = 30
30 = 30 <----------- always put this!! It's for verification!!

50 blocks - 2n = 50
2 (25) = 50
50 = 50

125 blocks - 2n = 126
2 (63) = 126
126 = 126

7. We had to make a graph for the first 6 terms and label the line according by it's equation.

Find any problems!? Comment for me okkays???

K.V. 8-41

OOPS!! JUST FOUND OUT TODAY (18/04/07) THAT THE PICTURES WON'T APPEAR AND WHEN I UPLOAD AGAIN, IT WON'T WORK!! MY COMPUTER IS HAVING PROBLEMS THESE FEW DAYS.