Chapter 7 – Identify Subproblems & Chapter 9 – Solve an easier Related Problem

POD - Used Cars

          While watching a commercial on late night TV, But noticed the following subtitles at the same time the announcer was saying something:  “sochi na warak” was on at the same time as the man said “sale cars sheep.”  Bud was intrigued, so the next several times he saw the commercial, he wrote down the following subtitles and phrases:

“quandi bonki warak”             “big blue cars”

“quandi sochi”                                  “big sale”

“kandi sochi konaa”                         “no sales people”

“warak na”                               “cheap cars”

“bonki tayku ta”                       “green and blue”

“konaa qualliak”                      “no lemons”

“sochi na warak”                     “sale car cheap”

“wassa tayku”                         “green money”

 

In whatever language this is, what is the meaning of the following sentence?  “qualliak na ta konaa tayku kandi.”

 

 

Previous Homework –

Pg 178,  #3  (hint – what fraction (or %) of the passengers are the 68 men?  How many passengers are there?  How many passengers could the plane hold?)

          #5 (hint:  Area of circle is Śr2 ; white regions are each Ľ of a circle – what is its radius?)

          #7

          Pg 182 - #2

 

 

QUIZ  - 

 

IN CLASS - One Hundred Sixty-Eight Inches of String

          One hundred sixty-eight inches of string were used to make these squares, which are all the same size.  What is the total area of the 10 squares?

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Chapter 9 – Solve An Easier Related Problem

 

When a problem seems to hard or too confusing, look for an easier related problem.

 

1.  Use a number instead of a variable.

2.  Use a smaller or easier number in place of a more difficult one in order to develop

the process for solving the problem.

3.  Do a set of specific easier examples and look for a pattern.

4.  Do a specific easier example and figure out an easier process that will work to

solve the problem.

5.  Change, fix, or get rid of some conditions.

6.  Eliminate unnecessary information.

 

IN CLASS – Young Entrepreneurs

          Marc has had his own greeting card company since he was 6 years old.  Suppose Marc and 7 of his artist co-workers have a meeting.  As they arrive, each one hands a sample of his or her work to each of the other artists.  How many greeting cards will be passed around?

 

IN CLASS - Luncheon Seating

          Nikki is setting up tables for a noon luncheon in the gym.  She has 25 small square tables that hold one person to a side.  She plans to put 25 of these tables in a row to make one long rectangular table that is only one table wide.

a)  If 60 people will be attending the lunch, will she have enough space to seat them all using this plan?

b)  If she placed all 25 tables in the form of a big square, how many people could she seat?

 

IN CLASS -  Bad Coin

          In a group of nine coins, eight weight the same and the ninth is heavier.  Assume that the coins are identical in appearance.  Using a pan balance, what is the smallest number of balancing needed to identify the heavy coin?

 

IN CLASS – Find the Sum

          Find the sum

 

 

IN CLASS - Strange Arrangement

          The integers greater than 1 are arranged as shown:

 

2

3

4

5

9

8

7

6

 

 

10

11

12

13

17

16

15

14

 

 

.

.

.

 

          a.  In which column will 100 fall?   (i.e. 1, 2, 3, 4, or 5)

          b.  In which column will 1000 fall?

 

POD – Page 183 - #5 - Nightmares

 

Assignment:  Page 182, #2;  Read Chapter 9, pg 219 – top pg 231

          Pg 243 & 244 - #1, #2, #7