## Math 256 - Differential Equations - Fall 2013 - Prof. Mark Janeba

 Meetings MWF 8:00-9:00 a.m. Ford 204 Office: Ford Hall 216 E-mail: mjaneba@willamette.edu Phone/Voice Mail: (503) 370-6123 Office hours:  www.willamette.edu/~mjaneba/hours.html Text: Calculus Elementary Differential Equations and Boundary Value Problems, 9th edition, by Boyce & DiPrima ISBN 978-0-470-38334-6, published by WileyCovering roughly chapters 1-4, and portions of 5-8.

### Course Content and Goals:

Upon completion of this course, successful students will demonstrate the ability to:
• Identify the basic categories of ordinary differential equations, and identify appropriate elementary methods to apply toward their solution;
• Model a wide variety of natural phenomena with ordinary differential equations, interpret given models and evaluate them for appropriateness, and interpret the resulting solutions;
• Accurately carry out a variety of elementary solution methods, with understanding of those methods' limitations;
• Make informed choices among various exact and approximate solution methods, including elementary methods, Laplace transforms, numerical and series solutions, and qualitative methods, depending on the nature of the problem and the type of solution desirable;

 Weekly quizzes at 25 points each, except on exam weeks, drop 2 lowest: 200 points (approx) Five to ten WebWork assignments, mostly integration review approx 5 points each, 25-50 points total Three one-hour exams at 100 points each: 300 points One or two group projects at 75 points: 75-150 points Comprehensive Final exam: 200 points Total: 800-900 points (approx)
For each graded piece of work, I will post cutoff scores for grades of A-, B-, C, C-, and D. At the end of the term, if your point total is more than the total of the A- cutoffs, your grade will be an A- or better, and so on. However, see the notes below on grade adjustments. Cutoffs will never be higher than this:
 A- B- C C- D 90% 80% 70% 67% 60%
... but they are often lower.
• Tentative hour exam dates: [Sept. 25 or Oct 2],[Oct. 23 or 30], [Nov. 20 or 25]
• The final exam is on Saturday, Dec.14, 2013, from 8-11 am
• For borderline grades, I tend to pay more attention to the final exam score.
• At the end of the term, I will consider those students who have done unusually small or unusually large shares of their group's project and adjust their grades accordingly.
Exam makeup policy: Exam make-ups or early hour exams are given only for verifiable illness or for university-sanctioned intercollegiate activities. For collegiate activities, you must see me before you leave to arrange a makeup time. In any case, contact me in advance except in emergencies.

Final exam time is Saturday, Dec.14, 2013, from 8-11 am, as set by the University; early finals will not be given. Please make your travel plans now.  Really.  I mean it.  If someone else will be making your travel plans, it would be wise to notify them immediately of your committments.

The project will be done by assigned groups. One paper per group is to be submitted, and a common grade is given.

### Quizzes, Homework, and Participation

Quizzes are 15 to 25 minutes long, with problems that resemble homework. We will usually have a quiz in any week without an exam or a project due. Some weeks may be more crowded.

Homework is assigned daily but will not be collected; however, skipping or putting off homework will damage your grade badly. Don't let this happen to you. Careful and precise exposition of your work is required on exams. Such writing does not come automatically, so it will help to practice careful writing on your homework.

Please come to class prepared to discuss the previous night's homework.

Accommodations for students with disabilities:Accomodations required by students with disabilities will be provided upon reasonable advance notice and verification of requirement/eligibility from the Office of Disability Services(Bishop Wellness Center).  If you forsee needing an accomodation, it is probably best to inquire at the Office of Disability Services at the start of the semester.  If Disability Services prescribes extra time for exams, you must remind your instructor of your needs at least one week before an exam and send an email reminder at least three days before the exam to ensure appropriate accommodations have been made.

Policy on in-class distractions and cell phones: It is important to respect the concentration and attention of each student in the class.  Class time is limited, precious, and the tuition is quite expensive per minute.  Arriving late for class is not acceptable barring genuine emergencies.  Electronic devices not required for the course must be turned off during class time.  Exceptions include calculators, and special-needs aids such as lecture-recording devices.  If your cell phone rings during regular class time, you will be required to bring pastries or cookies for the entire class at the next class meeting.  During exams and quizzes, the penalty is more specific: two points for each ring, or one point per second of audible sound, whichever is greater.  Please help me hold distractions for your fellow students to an absolute minimum.

### Workload and time committment expectations

It is the policy of the College of Liberal Arts taht for every hour of class time there is an expectation of two to three hours of work outside of class.
Thus, for our class you should anticipate spending six to nine hours weekly outside of class engaged in study time, reading and homework assignments, and group work.