Homework problems will be assigned at almost all class periods, and will be due at the following class.
The assignments should be found by consulting the appropriate homework webpage.

There will be three sorts of Homework Assignments this semester; often more than one sort may be due on any given day.
Sometimes, I will also put Practice Problems for you to look at and think about. They are NOT for you to turn in; often, they have may have been discussed in the Problem Session class, Phys. 167. They may be accessed by looking at this link.

1. The first sort will be fairly traditional, and will be done on paper and turned in at the beginning of classtime, the following class period. The problems on the paper homework assignments will usually involve more than just "plug-and-chug" exercises where you simply insert a number into a formula.
   The problems must be turned in at the beginning of class since we may well discuss some of the problems during that class.
   The homework should be put into the large, roll-about box at the front of the room, as soon as you arrive;
   that box has bins labelled alphabetically; please insert your paper into the bin corresponding to the first letter of your last name.

   Paper homework will be graded and returned to you as soon as possible, usually within 1 week. There are boxes for this return in the lobby. A range of those boxes will be allocated to this class, and each of you will be assigned a particular, numbered box, for the return of homeworks, exams, etc.
   Please ALWAYS put your box number on any paper that you might want returned.

   • Solutions to homework problems will be placed at the appropriate link from the class Web page, on the day they are due.
   • The Teaching Assistant for this class will be a graduate student, not yet known by name.
     All questions concerning HW grades must first be taken up with that TA, who will have office hours, both for this purpose, and for general questions about class material.
   • You are allowed, and indeed strongly encouraged, to work in a group [of two to four persons] on your paper homework problems. In this case, please make ONLY ONE COPY of the HW with everyone's name on it, and box number. [It will be returned to the first box number, but all members of the group will receive equal grades.]
   • To encourage you to do Homework, you should note that
     1. homework will be counted as 25% of your final grade, and
     2. many exam problems will be similar to HW ones.
2. We are also using a Web-based homework system, called WebAssign. You may access it directly from this link, or use the URL: http://www.webassign.net/student.html
   The problems I assign for you on WebAssign will usually be fairly simple problems, designed to allow you to go over material that has been discussed recently in class.
   In this approach, each of you will do similar problems, by computer, although the answers for each student will be different since the computer randomizes the input numbers for the problems. The computer will grade your problems, and tell you the result as you turn them in. After you have finished the problems, you may click on the button marked Submit and the computer will determine which parts of each problem are correct, or not, and give you a summary of the grades. It will then give you a chance to revise your answers on the ones that are wrong. [Note that when you page through the problems a second time it will have marked those parts that are incorrect with a big red X.] You may then correct them, and re-Submit the problems. You are allowed a total of three chances to Submit, with the computer counting for your grade the last one you submit. Solutions to the computer problems will be posted, along with the solutions to the paper problems, on the appropriate website.

   You must have a computer account in order to effectively use WebAssign. You may acquire one from the university computer system (CIRT) is you do not already have one.
   You will also need a WebAssign UserName, a PassWord, and a WebAssign Student Access Code. I have created for each of you a username and password, and have already given them to WebAssign---actually only, so far, those of you that were registered by early Friday morning, 11 Jan. To acquire a Student Access Code, you need to obtain from me the small "ticket" that contains your very own Code. Scratch the grey area in order to display it.

   I created your username and password from the letters of your name---the official version of your name that the university puts in its records---and your UNM ID number, according to the following scheme:

   For your user name, take the first 5 letters of your lastname, and then put the first 2 letters from your first name, and, finally your middle initial, for a total of 8 letters---all Lower Case. If your official name has no middle initial, you will need 3 letters from your first name, instead. If, on the other hand, you have fewer than 5 letters in your lastname, again, take more from your firstname. If your firstname is hyphenated, I treated it all as a firstname, rather than treating the second part of it as a middle name.

   For your password, take the first 4 letters of your firstname, and then put the last 4 numbers from your UNM ID number; in case you have fewer than 4 letters in your firstname, use more from the ID number.

   In case your name seems not to lend itself to this approach, I have a list of all the actual usernames and passwords that I assigned, and you may ask me.

   When you first log on, they will ask for your username, your university (which is unm [lower case]), and your password. You will then notice that there is an assignment where you are told to Register. You do this by inserting the Student Access Code number in the proper place; this proves to them that you have been properly accounted for in the system.
   The first time you logon you will see the DEADLINE, for registration, is the morning of Monday, 28 January.

   The online manual for WebAssign may be accessed at this URL.

   If none of this works for you, or you do NOT have all of these things, please ask me after class, and/or inquire via e-mail to me.

3. There will also be a few "challenge problems" during the semester, perhaps as many as 5. These are yet-more-difficult problems that also are more interesting than normal. The grades on these challenge problems will be added as a bonus on top of your regular homework score. Therefore, if you get all of them completly correct, and if you do all the regular homework problems correctly, you may boost your total homework score to as high as 125%. [5% for each challenge problem]

I will hold extra problem and HW sessions at special times during the semester when this seems most appropriate, such as prior to exams, or when requested. These will be announced in class and posted on the main class webpage.

There are other professors who hold office hours in Regener Hall, Room 109. They are there to answer questions that you may have and, thus, if you are unable to come during my office hours, you should feel free to question any of them.

1. homework leading to the first exam,
2. homework leading to the second exam,
3. homework leading to the third exam,
4. homework leading to the final exam;