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?