Mathematics 141 - Trigonometry

Mathematics 142 - Trigonometry and Analytic Geometry

Sections A, B, C

Math 141 and 142 run in parallel until the trigonometry exam. This serves as final exam for 141, exam 3 for 142. Then Math 141 is finished, no more classes to attend. Students in Math 142 go on to analytic geometry and take a final which examines this part only.

News

No new homework before exam 3/Math 141 Final! but look to WebCT for a practice exam. I recommend looking at the following exercises: From 7.3, #11, 13, 33, 34. From 7.4, 25, 26, 27, 28, 39, 42. Look at them, DO NOT HAND IN! but ask about these in recitation.

Whenever you discover a mathematical error in the textbook or in anything I put on the web, please tell me via email. I will award you three homework questions' worth extra credit if you are the first one to report a particular error. I will award you even five questions' worth if it is related to a homework and you report it at least two days before the deadline for that particular homework. This is because the rest of the class benefits even more when any confusion is cleared up as early as possible. Here are known errors which you should check out first before emailing me.

This page will normally be updated only for homework and whenever there is a problem with WebCT. To make sure you have the latest version of this page, make sure to press the Refresh/Reload button.

Instructor

Dr Christian Roettger

Lectures, recitation sessions

Lectures are MF, 8-8.50 in Carver 0001 for everybody! Recitation sessions are one for each section - know which one you are in! If in doubt, you can find this on Access Plus. It also shows up in WebCT. Time and place for section 142 A1 is the same as for 141 A1 and so on. We have two excellent TAs for this course.

Name Email address Office Office hours
Olga Ruff olgaruff AT iastate DOT edu Carver 451 (NEW!) TR 9-11
Michelle Lastrina lastrina AT iastate DOT edu Carver 419 TR 9-11

A1 T 8-8.50am in CARVER 0068
A2 T 8-8.50am in CARVER 0098
B1 W 8-8.50am in CARVER 0002
B2 W 8-8.50am in CARVER 0004
C1 R 8-8.50am in CARVER 0068
C2 R 8-8.50am in CARVER 0098

The first class is Monday, Aug 21, 2006, and the last class is Friday, Dec 8, 2006. There are no classes on Labor Day (Sept 4) and during Thanksgiving Break (Nov 20-24). The Final for Math 141 will be on Nov 3, 8-8.50am in Carver 001, same as Exam 3 for Math 142. This will be comprehensive. The Final for Math 142 will be on Tuesday, Dec 12, 2.15-4.15pm in Gerdin 1148 for sections A1, A2, B1, B2 and in Carver 305 for sections C1, C2.

Homework and Schedule

Homework will always be due on Fridays. No late homework will be accepted. Please, PLEASE write your name and section designator legibly on top of each sheet that you hand in. Please staple multiple sheets together. Also indicate clearly the section of the textbook which your homework is about, eg

Christian Roettger, Math 141 Y4 - homework on section 5.1

Here is a homework schedule which will be continually updated.
Section Problems Due
5.1 pg. 335: 22, 26, 38, 76, 78 8/25
5.2 pg. 352: 14, 36, 58, 96, 106 9/1
5.3 pg. 367: 24, 32, 38, 50, 86 9/1
6.1 pg. 423: 14, 22, 38, 40, 52 9/22
6.2 pg. 429: 12, 18, 30, 42, 44 9/29
6.3 pg. 435/36: 12, 30, 58,72,74 9/29
6.4 pg. 445: 16, 30, 36, 40, 58 10/6
6.5 pg. 455: 12, 22, 30, 36, 40 10/6
6.6 pg. 459: 16, 40 Extra Credit 10/6
6.7 pg. 465: 12, 22, 40, 54, 57. Make sure to find all solutions in specified interval for #12, 22! # 54, 57 worth 4 points. 10/13
6.8 pg. 473: 8, 10, 22 10/13
7.1 pg. 491: 18, 24, 40, 50, 58 10/27
7.2 pg. 502: 10, 16,26,42,48a) (see p. 489 for 'bearing') 10/27
8.1 pg. 543 - 544: 26, 44, 62, 72, 82 (do not attempt to solve the equation) 11/10
8.2 pg. 560: 16, 18, 24, 32, 40 (just calculate a few suitable points, compare to example in text and connect points with smooth curve). 11/10
8.3 pg. 569: 18, 24, 34, 46, 54 (read section 8.3 if you are working on 46, 54 before Monday) 11/17
9.1-9.2 pg. 622 - 623: 14, 22, 26, 32, 34 (9.1 has no homework attached) 11/17
9.3 pg. 633: 14, 22, 32, 40, 48 12/1
9.4 pg. 647: 24, 34, 38, 44, 48 12/1

Additional resources

WebCT GOLD is a tool for publishing your grades with statistics like average, max/min, plus model solutions.

The Math Help Room is staffed by students who can help with questions, too.

Consulting Hours are the times when you can come to my office to see me in person. If the door is shut, please knock!

Here is Syllabus. You do not have to print this out - it will always be here!


Textbook

Sullivan Precalculus, 7th edition

If you are in Math 141, you will cover chapters 5, 6, and 7 in the course. If you are in Math 142, you will cover chapters 5, 6, 7, 9, and part of 8 in the course. If not shrink-wrapped with the text, you may also purchase the corresponding Student Solution Manual, which contains worked out solutions to the odd numbered problems (not obligatory).

Disabilities Statement

If a student has a disability that qualifies under the Americans with Disabilities Act and Section 504 of the Rehabilitation Act and requires accommodations, she/he should contact the Disability Resources (DR) office for information on appropriate policies and procedures. DR is located on the main floor of the Student Services Building, Room 1076; their phone is 515-294-6624. If you are considering this, I recommend talking to me early in the process, too.


This webpage is http://www.public.iastate.edu/~roettger/141/homepage.html

Comments to roettger AT iastate.edu

Please put the letters Math 141 [x] (resp. 142) at the beginning of your subject line (where [x] is your section, A1, ..., C2)!!! Then add some meaningful subject like 'meeting' or 'grade' or 'homework'. This really helps me a lot!