MATH 250b


Spring Semester 2008, Section 2, Professor J. M. Cushing

Course homepage     Syllabus    Homework & reading assignments     Tests     Projects      Class presentations (pdf)


INSTRUCTOR:  Professor J. M. Cushing
    Office location:  502 Mathematics Building      E-mail:        Telephone: (520) 621-6863
    Dr. Christopher Bergevin will be assisting with the course. He will arrange for a weekly tutorial session.

TIME & PLACE:  8am - 9:15pm Tuesdays & Thursdays, Mathematics 101

OFFICE HOURS:  My office hours (held in Math 502) are:
                Tuesdays and Thursdays at 9:30am - 10:30am  and  Wednesdays 11am - 12pm

These are subject to change during the semester. Contact me by e-mail to make appointments at other times.
    Dr. Christopher Bergevin's office hours (held in Math 321) are:
                Mondays 3pm - 5pm and Wednesdays 3pm - 4pm
His e-mail address is

HOMEPAGE AND E-MAIL:  Updated information on the course (including weekly reading assignments, homework assignments and due dates, exam dates and information) will be available throughout the semester from the course homepage. If you have any questions please feel free to contact me by email. 
COURSE PREREQUISITE:  Math 250a, consent of instructor.
TEXT:  J. M. Cushing, Differential Equations: An Applied Approach, Pearson-Prentice Hall, Upper Saddle river, New Jersey 2004   (ISBN: 0-13-044930-X)
SYLLABUS:  Chapters 1 - 8 (selected sections, to be announced, will be skipped). See syllabus.
TESTS:  There will be two mid-term tests and a comprehesive final exam. See exams for dates and details. Final Exam: Thursday, May 15, 8:00am - 10:00am. There will be no make-up tests. 
HOMEWORK:  Homework is an essential part of the course. Assigned and suggested exercises will be posted on the homework & reading assignments page. A subset of thoe assigned exercises will be graded and an the results used in the calculation of the course grade. Late homework will not be accepted for grading.

PROJECTS:  During the semester there will be several written projects involving extended applications and case studies. See projects.

GRADES: A course percentage grade will be calculated as follows.
     The homework score H equals the %-score of graded homework after the lowest homework score is dropped.
     The adjusted test #1 score T1 equals the %-score on midterm test #1 or the %-score on part #1 of the Final exam, whichever is greater.
     The adjusted test #2 score T2 equals the %-score on midterm test #2 or the %-score on part #2 of the Final exam, whichever is greater.
     The project score P equals the %-score on course projects.
     The final exam score F equals the %-score on the final exam.
     The course %-score is  C = ( H + T1 + T2 + 2P + F )/6.
     The course letter grades cutoffs will be no higher than
A > 90% > B > 80% > C > 70% > D > 60% > E.

WITHDRAWALS:  Students withdrawing from the course before October 12 will receive the grade of W if they are passing at the time. Students will be considered passing at the time of withdrawal if they have scored at least 50% on the work completed at that time.  The University allows withdraws after October 12, but only with the Dean’s signature. Late withdraws will be dealt with on a case by case basis, and requests for late withdraw with a W without a valid reason may or may not be honored.

INCOMPLETES: The grade of I will be awarded if the student has met all of the following conditions:
    1. completed all but a small portion of the required work;
    2. scored at least 50% on the work completed;
    3. has a valid reason for not completing the course on time;
    4. agrees to make up the uncompleted requirements within a short period of time;
    5. asks for the incomplete before course grades are due (48 hours after the Final Exam). 
ATTENDANCE:  Students are expected to attend every scheduled class and to be familiar with the University Class Attendance Policy as it appears in the General Catalog. Frequent unexplained non-attendance may result in a student being dropped from the class. Experience has shown that regular class attendance is necessary for success in this course. It is the student's responsibility to keep informed of any announcements, syllabus adjustments or policy changes made during scheduled classes.
IMPORTANT DATES:  See the University calendar at Spring 2008 Dates.

CLASSROOM CONDUCT: Students at The University of Arizona are expected to conform to the standards of conduct established in the Student Code of Conduct. Prohibited conduct includes:
    1. All forms of student academic dishonesty, including cheating, fabrication, facilitating academic dishonesty, and plagiarism.
    2. Interfering with University or University-sponsored activities, including but not limited to classroom related activities, studying, teaching, research, intellectual or creative endeavor,administration, service or the provision of communication, computing or emergency services.
    3. Endangering, threatening, or causing physical harm to any member of the University community or to oneself or causing reasonable apprehension of such harm.
    4. Engaging in harassment or unlawful discriminatory activities on the basis of age, ethnicity, gender, handicapping condition, national origin, race, religion, sexual orientation, or veteran status, or violating University rules governing harassment or discrimination.

Students found to be in violation of the Code are subject to disciplinary action. For more information about the Student Code of Conduct, including a complete list of prohibited conduct, see .
ACADEMIC INTEGRITY: Students are responsible to be informed of University policies regarding the Code of Academic Integrity. Students found to be in violation of the Code are subject to sanctions that will be determined by the severity of the infraction. The Code of Academic Integrity will be enforced in all areas of the course, including tests and homework. For more information about the Code of Academic Integrity policies and procedures, including information about student rights and responsibilities, see .
STUDENTS WHO REQUIRE REASONABLE ACCOMODATIONS BASED ON DISABILITY: Students planning to use accommodations for this course should privately identify themselves to their instructor within the first few days of class. These students must also provide the instructor with a letter of identification from the Disability Resource Center. This letter should include information about any accommodations you will need for the class, including accommodations for test taking. Students are also invited to discuss specific issues with the course instructor during regular office hours or by appointment.

J. M. Cushing  / Department of Mathematics  / Program in Applied Mathematics  / University of Arizona / Tucson, AZ, 85721-0089

(revised 28 January)
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