# Strategies for Solving Business Problems

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```					         Math 105:
Problem Solving in Mathematics
Course Description
•    This course introduces students to the true nature
mathematics, what mathematicians really do, how they
think, and what they try to accomplish.

• The focus is on using quantitative reasoning and intuitive
logical thought techniques to solve problems rather than
formal rigid processes.
Course Objectives
The student will be able to:

• Be able to recognize and produce a precise and formal statement of
a problem.

• Explore various parts of a problem, including any necessary
background information, basic examples, what sort of solution is
required, and what techniques might help to solve it.

• Demonstrate a logical reasoning process in solving problems.

• Be able to precisely present their ideas to others.

• Demonstrate an ability to understand and critique non-technical
scientific writing.
Course Objectives
The student will be able to:

• Be able to recognize and produce a precise and formal statement of
a problem.

• Explore various parts of a problem, including any necessary
background information, basic examples, what sort of solution is
required, and what techniques might help to solve it.

• Demonstrate a logical reasoning process in solving problems.

• Be able to precisely present their ideas to others.

• Demonstrate an ability to understand and critique non-technical
scientific writing.
First Assignment
• What is Mathematics?

• Describe what you think Mathematicians do.

thus far in previous Math classes.
Why Solve Problems?
• What major world problems need solving?
Why Solve Problems?
• What major world problems need solving?
• Are all of these problems going to be solved by scientists?
Why Solve Problems?
• What major world problems need solving?
• Are all of these problems going to be solved by scientists?
• What major problems will you need to solve in your major field of
study?
Why Solve Problems?
• What major world problems need solving?
• Are all of these problems going to be solved by scientists?
• What major problems will you need to solve in your major field of
study?
• Will your solutions be scientific?
Why Solve Problems?
• What major world problems need solving?
• Are all of these problems going to be solved by scientists?
• What major problems will you need to solve in your major field of
study?
• Will your solutions be scientific?
• Even if your solutions are not scientific, they may require
–   Formal reasoning
–   Critical thought
–   Careful re-evaluation of your solution
–   The careful formation of an argument to convince others
–   The evaluation of other people’s arguments and reasoning.
• We will focus on these aspects of your solutions.
Our goal
• The solution of a problem is not really our goal.

• Understanding the solution is the goal.
– If you understand the solution, then you may be able to apply it
to other situations,
– or you will know why you cannot apply it.

• Measure your understanding by how well you can
explain it to someone.
Our goal
• Use any resource available to solve a problem and
understand the solution.

• Begin by trying to solve easier versions of the problem.

• Take solutions to other problems and generalize them or

• Create new problems. Ask questions.
Example
You arrive in the afterlife and find two guardians, each one
standing before a door. One of the doors leads to a
place of eternal happiness and the other leads to a place
of eternal anguish.

truth, the other one always lies, and you are allowed to
ask one of them a single question.

What should you do?
How will your learning be evaluated?

– Group Projects. (65%)

– Midterm (5%) & Final Individual Projects. (10%)
How will your learning be evaluated?

– Group Projects. (65%)
• Problem solving abilities

• Argument and reasoning abilities

– Midterm (5%) & Final Individual Projects. (10%)
• Problem solving, research, argument abilities
How will your learning be evaluated?
Projects (65%):
• Typed report for each project.
• Some of these will be presented to the class.                      This will be a
random selection, so you should always be prepared to present your project.
• Your project score will be based on:
–   the organization and detail of your explanation,
–   problem solving strategies,
–   argument and reasoning abilities,
–   appropriate use and citation of sources,
–   possible new ideas generated for future research.
• Your project score will not be based on:
– the length of the project
– whether or not you solved the problem.
How will your learning be evaluated?
• The formation and evaluation of arguments.
• Bi-weekly readings of Mathematical writing.
• 3-4 page paper:
– Summarize the main argument(s) in the reading.
– Is the argument well-organized, well-written, and effective?
– Is sufficient evidence presented? Were you convinced?
– What did you learn from the reading that you did not know before?
– Ask and discuss 3 interesting questions about the ideas presented in
– Discuss the reading’s relationship to other courses.
How will your learning be evaluated?
Midterm (5%) & Final Individual Projects (10%):
• More on this later.
Example
Which list has more numbers in it?

The even numbers:       2,4,6,8,…

The odd numbers:        1,3,5,7,…
Example
Which list has more numbers in it?

The natural numbers:    1,2,3,4,…

The even numbers:       2,4,6,8,…
Example
Which list has more numbers in it?

The natural numbers:       1,2,3,4,5,…

The natural numbers
and zero:                0,1,2,3,4,5,…
Example
Which list has more numbers in it?

The natural numbers    1,2,3,4,…

The integers   …-4,-3,-2,-1,0,1,2,3,4,…
What is expected of you
• Work towards an understanding of the Mathematical
process of problem solving.

• Contribute ideas to your group.

• Present projects that you are proud of.

• Learn some Mathematics along the way.

• You are responsible for your learning.
What should not happen in this class:
• When are we ever gonna use this stuff?

• Will this be on the test?

• You expect us to come up with that on our own?

• Do we have to know that?

• I hate Math. I’m terrible at Math.
What should not happen in this class:

• When are we ever gonna use this stuff?
–   Whenever you solve problems you may be able to apply some of these techniques.

• Will this be on the test?
–   No, there aren’t any tests in this class. Are you here to learn or take tests?

• You expect us to come up with that on our own?
–   Now I do. Learning involves applying reasoning abilities and skills to new situations.

• Do we have to know that?
–   You don’t HAVE to do anything. The fact that you’re in college tells me that you want to
learn.

• I hate Math. I’m terrible at Math.
–   You probably hate the Mathematics that has been presented to you so far: numbers &
equations. This is not what Mathematics is all about.
Book
The Language of Mathematics by Keith Devlin
First Individual Project
What is Mathematics?
Read the Prologue of The Language of Mathematics (p.1-12) and do the following in a
3-4 page paper:
• Present and discuss a formal definition of Mathematics.
• Describe at least one particular field of Mathematics.
• Describe what Mathematicians do (they don’t just solve equations).
• Discuss how you think you will use Mathematics (beyond arithmetic) in your intended
field of study.
• Give a brief history of a famous Mathematician from before 1900 and a summary of
his/her accomplishments (i.e. what problems did they solve?).
• Give a brief history of a modern Mathematician (1900 or later) and a summary of
his/her accomplishments.

You may need to use additional sources and you should cite these sources using any
format you are familiar with and include a bibliography. Visit the Writing Center with
your final draft. Submit via email.

Due: Friday January 28

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