Welcome to LSP 120 Quantitative Reasoning

1
Welcome to LSP 120 Quantitative Reasoning

• Dr. Angel Resto
• Section 112 TTH 940a-1100a
• SAC 262 268(lab)

2
Who am I?
3
Who are you?

• Human Bingo!!

4
What is LSP 120?

• We will examine data look at it, talk about it,
  graph it, manipulate it
• To graph and manipulate we will use mathematics
  and technology
• Why do we want to do this?

5
What is LSP 120?

• Because the person that can use data
  (information) gains knowledge and thus has power!
• In college writing research papers and taking
  advanced courses
• In your job career advancements
• In life more intelligent life decisions

We are going to search for the story behind the
numbers!!
6
What are the topics?

• Linear and near-linear models (with trendlines
  and forecasting)
• Exponential models
• Useful percentages
• Graphing
• Consumer Price Index
• Absolute versus relative values
• Financial models

7
Did you know..

• If you feel you already know the material in LSP
  120, it is possible to take a proficiency exam to
  test out of this course.
• Please take the LSP 120 placement exam ASAP. See
  Jennifer in SAC 268
• More info at qrc.depaul.edu/ Click on placement

8
Class Website

• www.qrc.depaul.edu/aresto-gallardo
• www.qrc.depaul.edu (click on Angel Resto)
• Here you will find
• Syllabus
• In-Class Activities
• Calendar
• Assignments
• Study Notes
• Lab Rules
• Groups Info
• More

9
Course Format

• Meet at SAC 262(lecture) SAC 268 (Practice)
• Class activities (groups)
• Weekly assignments (Individual)
• Mid term Oct-15th
• Written Project (3 stages) Due on Nov 17th
• Presentation of Project
• Final Exam Nov 24th

10
Course Rules!!

• Final Exam  (25)  The final exam must be taken
  in order to receive a grade in the course, and
  you must receive a grade of 55 or more in order
  to pass the course.  If you cannot take the exam
  due to illness or family emergency, you must
  inform me in advance by phone or email. 

11
Rules!!

• Midterm Exams (15 each) In-class midterm
  examinations will be given during class. There
  are NO MAKEUP exams in this course.  If you
  cannot take an exam due to illness or family
  emergency, you must inform me in advance by phone
  or email.  An unexcused missed examination will
  count as a 0.  An excused missed midterm exam is
  dropped, and the remaining forms of evaluation,
  especially the final exam, are more heavily
  weighted in the final grade.

12
Rules!!

• Written Project (15) Throughout the course I
  will ask you to work on a written project
  involving variety of different computer and
  analytical tools from the course.  I encourage
  you to hand in a draft of this paper.  I must
  receive the draft on November 10th (one week
  before it is due), so that I can read it and
  respond to your work. The final paper is due on
  Tuesday, November 17, 2009.  Late project papers
  will not be accepted.  

13
Rules

• Presentation of Project (10) A PowerPoint
  presentation based on your written reports. 
  Presentations will be held on the last two
  scheduled days of class.  Attendance these days
  is mandatory.  Your presentation grade will be
  lowered by one full grade for each class day you
  do not attend.

14
Rules!!

• Out of Class Assignments  (10) Most weeks there
  will be an assignment to be done outside of
  class. Their purpose is to give you individual
  out of class practice on the skills we are
  learning and to explore some ideas more
  thoughtfully and deeply.  The assignments are
  posted on the course web page.  Homework
  assignments must be done individually. 

15
Rules!

• Attendance/Participation (10)  Class attendance
  and participation are important. Role will be
  taken on lab activity days. Much of the class
  time will be spent working in groups doing
  exploratory activities that embody a
  collaborative "learn by doing" approach. I will
  collect these activities, and your entire group
  will receive the same grade for the activity.
   Each activity must include a signed statement
  that each group member participated fully in the
  assignment.

16
What is LSP 120?

• Lets take a closer look at the syllabus

17
Syllabus

• Contact Info aresto-gallardo_at_gmail.com
• Required  Materials
• USB drive
• Outline of the Course (Please mark your calendar)
• Evaluation
• A passing grade (gt55) on the final exam is
  required to pass the course.
• Grading Policy
• Incomplete grades
• Academic Integrity

18
LSP 120

• Linear Models

19
Linear Relationships

• What makes a graph or function or table linear?
• There is a constant rate of change

20
Linear Relationships

• Why do we care if a set of data is linear?
• If a data set is linear (or near-linear), then we
  can better predict where the data will be in the
  future
• We can also go back in time and see where the
  data has been!

21
Linear Equation

• ymx b
• mslope
• b y-intercept

22
Rate of Change (Slope)

• Slope Rise/Run
• Slope Change in y/Change in x

23
Linear Relationships

• Look at a set of values. Is it a linear
  relationship?

What makes a table linear?
There is a constant rate of change
Lets Calculate the slope or rate of change
Is it a linear relationship?
YES
24
Linear Relationships

• Look at a set of values. What is the equation?

Step 1- Calculate Slope Step 2-Calculate
y-intercept Step 3- Write the equation
How can we verify this equation?
25
Linear Relationships-Practice 1
Is this table linear? Calculate slope,
y-intercept the equation?
26
"Real world" example of a linear function

• Studies of the metabolism of alcohol consistently
  show that blood alcohol content (BAC), after
  rising rapidly after ingesting alcohol, declines
  linearly.  For example, in one study, BAC in a
  fasting person rose to about 0.018  after a
  single drink.  After an hour the level had
  dropped to 0.010 .  Assuming that BAC continues
  to decline linearly (meaning at a constant rate
  of change), approximately when will BAC drop to
  0.002?

27
Solution

• Step 1 define the variables in the function and
  create a table.
• Step 2 Calculate the slope y-intercept
• Step 3 Write the equation
• Step 4 Answer the question, "when will the BAC
  reach .002?Plug in .002 for Y and solve for X.
• Step 5 The BAC will reach .002 after 2 hours.

28
Lets Go!

• Lets head to the lab and start our first
  Activity
• But first, lets break up into groups

29
Groups

• GAJC, VICTORIA
• GIOVANNINI, MARINA
• GLAS, AMANDA
• GROSS, JACLYN
• GUSTAFSON, CALI
• HANSEN, KELSEY
• HENIFF, KAITLYN
• MIROBALLI, SAMANTHA
• MOORE, ERIN
• MURILLO, MONICA
• NELSON, SHELBY
• RAYYAN, GEORGE

• AKHRAS, SAMIA
• ALVARADO, MELISSA
• AROBELIDZE, NINO
• BARAN, SARAH
• BODE, SHAUNA
• BRISTON, JENNIFER
• CHIAPPETTA , DOMINICK
• COMPERNOLLE, CATHERINE
• CRESPO, NATASHA
• DEMBOWSKI, AARON