Department of Mathematics 
University of Nebraska Lincoln 


Spring 2008 Math 221 Section 006 Home PageWelcome to the Math 221Section 006 (Differential Equations) home page. You're probably here for information, so let's start with the vital statistics of the course. Essential Information
Differential Equation Course Resources
It's interesting to see how much information can be found on the web. Go to your favorite search engine (like Google or Yahoo) and try searching on "ordinary differential equation". See how many web pages you hit and visit a few interesting looking sites. AnnouncementsNotes and FAQWhere do I stand right now?... Well, that's easy enough. Here's a table to help you out. This table has all the possible grades for tests and quizzes in this course. Notice there are blanks where an activity has not been completed yet. So if you are looking at this table and we've only done the exams through three, then the grade scales are based on this data alone. Now all you need is your own scores. If you don't have them or simply want to see what grades I have recorded for you so far, email me from Blackboard. I will respond with the grades I have in my grade book. If you calculate your own grade remember that the quiz scale is dynamic and will vary with the number of quizzes currently finished in the course, and that the lowest quiz is dropped. Also note that the grade scales row gives the bottom score to attain the given grade. Grade Scales for Math 221, Section 006, Spring 2008
Class Policy
Course:Math 221  Section 006, Differential Equations Places/Times: 204 OldH, 12:301:45 TR, Spring 2008 Preq: Math 208 or 107H or equivalent with a grade of 'P' or 'C' or better. Objectives: The goals of this course are to help students achieve competence in the following areas:
Telephone: Office 4727233 Home 4890560 Email: tshores1@math.unl.edu Web Home Page: http://www.math.unl.edu/~tshores1/
Office Hours: Monday 2:004:00, Tuesday 3:305:00, Thursday
10:0012:00, Friday 9:0010:30, and by appointment. Office: 229
AvH Class Attendance: Is required. If absent, it is incumbent upon the student to determine what has been missed as soon as possible. It is advisable to consult with the instructor. There will be no makeup exams or quizzes. Homework/Projects: Everyone is expected to master the syllabus homework assignments. These will generally not be graded, but at least one question on each exam and most quiz questions will come directly from these problems. Therefore, students are strongly encouraged to work them and ask questions about them in and outside of class. Current information about the course will be available through the web (via the Math 208 homepage in Blackboard or my home page.) Using the web is strongly recommended for keeping track of current activities and resources for the course. Reading Assignment: Read the sections of the text as, or before, they are covered in class lectures. This is a standing assignment throughout the semester. Grade: Three class exams will be given as specified in the syllabus and these will account for 100 points each. The final exam will count 200 points. All exams are closed book with no calculators. There will be six fifteen minute quizes/assignments at 20 points each, of which the lowest score will be dropped. The dates of the quizzes/assignments will be announced in class one week in advance. The final grade will be based on these 600 points. Final Exam: Will be comprehensive. To be given on Friday, May 9, 10:0012:00 noon in 204 OldH. Grades of "I", "W" or "P": These grades will be given in strict accordance with University policy. (See any Schedule of Classes for the relevant information and dates.)
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