Crossing the River with Dogs

1
Problem Solving Strategy
Make a Systematic List
2
Strategy Make a Systematic List

• When you make a systematic list, you reveal the
  structure of a problem. Sometimes the list is
  all you need to solve the problem. Systematic
  lists include train and airplane schedules and
  travelers only need to read the schedule to solve
  their problems quickly and easily.
• A systematic list is just what its name says it
  is a list generated through some kind of
  system. A system is any procedure that allows
  you to do something (like organize information)
  in a methodical way. The list should be
  understood and clearly organized so that the
  solution can be verified easily, without too much
  effort.
• Many lists are in the form of a table where the
  columns
• and rows are set up to provide organization to
  the list.

3
Playing with Frisbees.
The object of the game called Frisbin is to throw
three Frisbees at three different-sized bins
that are set up on the ground about 20 feet away
from the player. If a Frisbee lands in the
largest bin, the player scores 1 point. If a
Frisbee lands in the medium-sized bin, the player
scores 5 points. If a Frisbee lands in the
smallest bin, the player scores 10 points. Kirk
McCoy is playing the game. If all three of his
Frisbees land in bins, how many different total
scores can he make?
4
Make lists you are willing to give up.

5
When you find a system, monitor it.
6
Try alternative lists.
7
Be careful at logical break points.
8
Make sense of others lists.
9
Strategy Make a systematic list

• Start with a messy list or lists you are willing
  to give up.
• Be sure you thoroughly understand your system.
• Monitor your system, being especially careful at
  logical break points.
• If the system doesnt seem to be working, dont
  be afraid to revise it or start over.

10
Now its YOUR turn

• Open your problem solving book and go to the
  section on Make a Systematic List (pages 9-10).
• Print off a problem solving sheet and do a
  complete solution to a problem from this
  sectiondo one and submit it or do more for
  extra fun. (Tennis Tournament, Apartment
  Hunting, and Archery Contest)
• Email your complete solution, with your steps
  clearly shown to NCAMath_at_district87.org or put
  them in Nancy Powells mail box!
• Have fun and Problem solve!