Course: Math 100 Section 1
Meets: MWF 2:30-3:20, Bilger 152
Professor: Prof. David Ross, ross@math100.info

Office hours: PSB319, Monday 9:45-12:15 + by appointment (these might change!)

GRADING PROGRESS (Last Update: 5/19 1PM)

Grades are now computed. I will probably do some last-minute error-checking, but I don't think anyone's grade will be worse than the one posted. (Here is a detailed description of how the grades were computed.)

NOTE: Several of you were caught by the policy (very clear in the syllabus!) that to earn a C or better you need to work at least half the MML homework. If you were one of those students who worked fewer than half of these assignments...what were you thinking? I had to assign Ds to some students with solid B averages on the exams:-(

CLICK HERE TO SEE YOUR GRADES.

I can be around later this week or next week if people want to make an appointment to discuss their grades with me.

Finally: I am sorry if you didn't get the grade you wanted. I've been told that in some departments course averages are in the B range; we tend to still use C in the Math department, though in this case the course mean and median were right at the B/C orderline.

Curve for Final Part I (16 problems total)

A:10 B:8 C:6 D:4

Curve for Final Parts I&II together (31 problems total)

A:19 B:15 C: 11 D: 8

THERE ARE STILL SEVERAL UNCLAIMED CLICKERS! WHY????

Latest list of unregistered/unidentified clickers.

EXAM 4 SCORES ARE NOW POSTED:

Note: The correct answer to problem 8 on the exam was B, but the machine scored it as if it was supposed to be A. For many of you this should mean another point. (Thanks to the students who found the discrepancy!) CORRECTED APRIL 22 11:50PM

You can check your exam scores by clicking this sentence. <==CLICK HERE

As usual, if you have any blanks that means the machine could not read your ID. PLEASE PLEASE PLEASE check this and see me after class ASAP if there is something missing.

I want to post grade estimates, I CAN'T DO THIS UNTIL ALL THE 3rd AND 4th MIDTERMS ARE RECONCILED.

ANY BLANKS STILL REMAINING HERE AFTER FRIDAY WILL BE CONVERTED TO ZEROS, AND YOU WILL NOT BE ABLE TO CHANGE THEM.

If you've read this far and still haven't checked your score, go back and do it right now.

EXAM 3 SCORES are now posted:

You can check your exam scores by clicking this sentence. This will also tell you which version of the exam you took (you might need to know this). (updated 4/6 4:15pm)

If your exam score does not appear, either:

  1. You didn't take Exam 3.
  2. You took the exam, but did not fill in your ID on the solution sheet.
  3. You filled the ID incorrectly on the solution sheet.
  4. Something else.

If either 2, 3. or 4 is the case, you NEED to see me IN PERSON as soon as possible, preferably on Monday during office hours or after class

By the way, no homework for Monday, but at some point over the weekend I'll be posting some readings for anyone who wants to get ahead of the next set of material..

Here are the answer keys. You will need to know your exam version, which you can find when you look up your exam score.

EXAM 3 COMING UP!

In case you haven't been paying attention, the 3rd midterm will be the week we get back from Spring Break, on April 1. I have posted some useful materials (on the right), including a summary of what will be on the exam.

Please note that this exam covers not only 4 sections of the text but also some topics not in the text, such as using the Euclidean algorithm to solve general equations mod m and the Fermat Little Theorem. If you haven't viewed the video on solving equations mod m, or haven't looked at the lecture notes and examples I've uploaded, you should do that ASAP.

You should also be working away (or done with) the last 3 homework assignments. If you put this off until March 30 or later your prospects for success on the exam are low!

EXAM 2 SCORES -AND- ATTENDANCE RECORDS: (March 9)

Exam 2 scores (and some other stuff) are posted here. UPDATED March 9 9PMMarch 13 11PM

If your exam score does not appear, either:

  1. You didn't take Exam 2.
  2. You took the exam, but did not fill in your ID on the solution sheet.
  3. You filled the ID incorrectly on the solution sheet.
  4. Something else.

If either 2, 3. or 4 is the case, you NEED to see me IN PERSON as soon as possible, preferably on Monday, March 9 during office hours or after class.

Here are the answer keys.

Here' a scan of the exam as I worked it in class. (as requested)

Curve: A:15 B:12 C:9 D:7

GRADE ESTIMATE:

This is very very very crude estimate of your semester grade so far. PLEASE don't email me to ask particulars of it! Very roughly, it is based on the two exams so far (66.5%), the MML homework and clicker quizzes (28.5%) and attendance. It is still using incomplete clicker data, and does not include the non-text take-home assignments. For those students who have not yet cleared up blank or missing second exams: I will NOT be recalculating this estimate.

ATTENDANCE:

The number reported is the number of times you have been to class, according to clicker records. This is out of 16 class periods other than the exams. Some important considerations:

  1. This includes the first week; for final grades, I will probably not count the first week, and the second week will be discounted.
  2. Some of you had excused absences for some of the class periods (or were on a 'clickers not working/forgotten/battery died/etc' list for the period when I was allowing that); these have not yet been factored into the totals.
  3. There are still some unclaimed clickers. Even if one of your clickers is registered with me, there might be another one you used before or after the one I know about which is not linked to your name. Here is the latest list of unknown clickers.
  4. As we discussed in the 1st week, the clicker only marks you 'present' if you click on both the first and the last clicker poll of the day. That means that if you click at the beginning of class then leave, you are marked 'absent'.

HOMEWORK and QUIZZES:

I hope to have something online here by late Monday night.

Some reminders (Feb 19):

If for some reason you miss a class, you are still responsible for any material covered in that class. This includes announcements made in class. Some of the material we have covered and will cover is not in the text.

On Wednesday, Feb 11, I announced that MML enrollment for the course would be reopened for 24 hours. I actually reopened it for 48 hours, until the 13th. It is now closed. If you are still not enrolled in MML, please do not ask me how to get enrolled. You can't. The only possible exceptions are those who have documented evidence that they tried to enroll between the 11th and 13th of February and were not successful for technical reasons.

EXAM 1 SCORES:

You can check your exam scores AND CLICKER STATUS by clicking this sentence.

Here are the answers to (the different versions of) exam 1.

Curve: A:16 B:13 C:10 D:8

More information in clickers:

If registering your iclicker with Laulima did not work, you could try here:

http://minisite.iclicker.com/register.aspx

If you are still having problems, here is some information from the UH CIS website; see especially the "Is technical support available?" section:

http://www.cis.hawaii.edu/guc/ars/student.html

Mathematical Ideas, 12th edition, by Miller, Heeren and Hornsby.

Available as ebook or 'real' book, you need the accompanying online package to be able to do homework online.

A couple of copies will be placed on reserve ASAP in Sinclair Library.

I will start to assign exercises from the text probably on Friday Jan 16, and you will eventually need to do it in the online interface. (You can do the homework without using the computer, but then you won't get feedback or get credit for it.) What I will do is put a delayed "due by" limit in the system for the first few assignments, so you can enter them online at a later time, but I strongly suggest you work the problems offline as I assign them until you get your online access.

Click for registration Information (How To) for MyMathLab (Note the course ID is ross74473. Your Pearson user name needs to be something I can recognize.)

Registration Link for MyMathLab

Our Pearson representative (you met her on the first day) is Jessica Hamad. She has graciously volunteered to help you with any questions you have about using the MyMathLab web site. You can contact her by email at jessica.hamad at pearson.com; . You can also phone the technical support at 800-677-6337.

We will be using clickers/i-clickers rather heavily in this class, so you need to buy one (assuming you don't have one already from your other classes). I will try not to use it for anything critical (like taking attendance) for a while to give you time to get one (and for us to get them synchronized with my software.)

There is a smartphone app version of this that is much cheaper than a regular clicker at www.iclickergo.com. I will enable my software to be able to use this, but I don't know how well it works. Note that buying the regular clicker might be a better deal for you if you will be using clickers in several classes, especially if you can sell yours at some point, since the fee for using the app repeats every semester.

Registration Link for i-Clicker

Course: Math 100 Section 1
Meets: MWF 2:30-3:20, Bilger 152
Professor: Prof. David Ross, ross@math100.info

Office hours: PSB319, Monday 9:45-12:15 + by appointment (these might change!)

(Note That This Table Of Assignments Now Reads From Bottom To Top!)
Date: Assignment(s): Handouts
Lecture Notes (Updated MAY 3)
May 11 Final Exam, 2:15-4:15

COVERAGE AND SOME REVIEW MATERIALS
(Corrected May 6)

There are now some review problems on MML covering the "Part II" part of the exam, except for the Fair Division and Fermat's Little Theorem material. These don't count for anything, but will give you a chance to use the MML example question facility for practice.

May 8 Review Session (Optional)

Bilger 152, 11:30-whenever

If you email me problems to work (or types of problems) in adance there is a better chance I will have good examples for you.

April 27,29, May 1 Topic: Statistics (mainly Data Representation)

Homework: See MML for HW from Chapter 12.1-3

April 24 Topic: Continue Probability

We will cover 11.1-11.3, but not the material on conditional probability and Bayes Theorem in 11.3

Homework: See MML for assignments due Monday and Wednesday

April 22 1. Clicker quiz on last Friday's in-class video.

Here is a list of questions; the quiz will consist of 3-4 of these.

2. Start Probability.

Homework: there will be a (short, I hope) MML assignment on 10.3 due Friday.

April 20 Midterm Exam 4!

Exam 4 Review Sheet.

Here are some extra (review) problems for Exam 4. (I will not be posting solutions, sorry!)

April 17 Current plan: video about statistics in class. (It won't be very boring, I promise!)

Be prepared to take notes. bring your clicker.

Here is a set of questions you might want to think about while viewing.

April 15

SOLUTIONS to Fair Division HW1

SOLUTIONS to Fair Division HW2

April 13 Topic: Start Chapter 10

Homework: The final homework on Fair Division will be distributed in class in paper form (with fillable bubbles, like the last assignment). It will be due Wednesday (or Friday with a 10% penalty).

Homework on 10.l and 10.2 will be available on MML starting tonight. It will be due Friday, with late turn-in acceptable through Monday.

Here it is in electronic form (so you can see it better!)

Here is a bubble answer sheet you can use for either assignment, only in case you didn't pick up the assignment in class. Please indicate on it which assignment it is for.

April 10 Topic: Fair Division (Concluded)
April 8 Topic: Fair Division (Continued)

Homework: Problems 3, 5, 7, 10, 17, 11 from the Lippman text. I haven't yet decided how I will have you turn them in, so you won't have to turn it in before Monday, but do them now anyway so you don't get overloaded later (and can do a quiz tomorrow on it if I decide to give you one).

UPDATE: This assignment will be available in paper form in class on April 10, and due Monday in class. Pick it up in class.

Here it is if you didn't get in in class or want a bigger version.

SOLUTIONS

A worked example of the Selfridge-Conway procedure (video, no sound)

Smartphone-friendly version.

<=updated April 10
April 6
April 1 COMING SOON: EXAM 3, April 1!

Here is a review sheet.

March 30 Topics: (1) Review, (2) start new material (fair allocation)

IF YOU BRING QUESTIONS TO CLASS I WILL TRY TO MAKE TIME TO ANSWER THEM. If you don't want to ask them out loud, you can write them down and leave them on the table in the front of the room at the beginning of class. Don't forget, you can print out problems from the text, both from the online textbook chapter endings and from the MML assignments.

March 23-27 Spring Break
March 20 Optional Extra Credit - bring your clickers!
March 18 Topic: Voting Methods Continued

Homework from text: 16.1 and 16.2, will be posted on MML. These will not be due until March 30 (but start them before break!)

March 16 Topic: Voting Methods

Handout: Lecture notes on Voting (UPDATED 3/18 TO INCLUDE HARE, PAIRWISE COMPARISONS, AND APPROVAL VOTING)

Homework: Start reading 16.1 and 16.2 in the text MML

Here's a supplemental homework set on modulo arithmetic and Fermat's Little Theorem

Here are a couple of solutions. (Sorry for the mess, it was originally going to be a video but my computer ate it.)

Homework:I have put some problems from this set on MMLunder the name S15_equations_mod_m_and_FLT. These will not be due until March 30 (but do them before break!)

<==new!

Mar 13 Topic: RSA and Fermat's Little Theorem

Notes on solving ex=b mod m (video coming later in weekend)

Here's the video

Here's the video in a cellphone-friendly form

Enjoy.

Mar 9, 11 Topic: RSA Cryptography (5.e and 4.e) concluded.

Handout: Lecture notes on RSA. (updated 3-13)

Handout: Worked example (from class) on RSA.

Mar 6 Exam 2 on Number Theory and Number Systems (Ch. 5 and 6, also 4e) (Update:  4.e will not be on this exam! The homework due date has been extended as well.)

SOME REVIEW MATERIAS FOR THE EXAM

answers

Mar 4 Topic: RSA Cryptography (5.e and 4.e)

Homework from text:

HW from 5e will be posted on MML,

s15_5.rsa is due March 11 (and NOT covered on the exam!)

Mar 2 Topic: RSA Cryptography (5.e and 4.e)

Homework from text:

HW from 4e will be posted on MML,

s15_4.rsa is due March 6 (and covered on the exam!)

NO! Now due March 11 and not on this exam!

Feb 27 Topic: Continue number systems.

Homework from text:

HW from 6.4 is now posted on MML.

There is also a supplemental problem set that will be available starting Friday afternoon covering some topics not in the text.

So, at MML:

s15_6.3 is due Today (F27)
s15_6.4 is due Monday (M2)
s15_ch5&6supplemental is due Next Friday (M6)

Feb 25 Topic: Continue Ch 6
Feb 23 Topic: Continue Ch 5; Start number systems. We will return to Ch.5 briefly next week.

Homework: (due Wednesday):

Read this article on the Golden Ratio, debunking common myths.

Here are some questions on the reading. (You might want to have them handy as you read the article.)

Same questions with the answer sheet. Download, fill in, return in class. DUE WEDNESDAY. 25% penalty if turned in Friday, not accepted after Friday.

Homework from text:

Problems from pp247-250 of text (in 6.3) will be due on Friday, Feb.27. If you haven't yet read this part of the text, do so now. THESE PROBLEMS ARE AT MyMathLAB!

Feb 20

Topic: Continue Ch 5 (5.4,5.5)

Homework: (due Wednesday,but get started now):

Read this article on the Golden Ratio, debunking common myths.

Here are some questions on the reading. (You might want to have them handy as you read the article.)

Same questions with the answer sheet. Download, fill in, return in class. DUE WEDNESDAY. 25% penalty if turned in Friday, not accepted after Friday.

Feb 18

Topic: Continue Ch 5 (5.4,5.5)

Here's a video on the "divisibility by 3 or 9" trick.
It is optional, but only 3 minutes.

Feb 16 NO CLASS (Presidents Day)

Here are some exercises from 6.1-6.3 you should already know how to do. These are just for your review, I do not want to see them worked. The numberings refer to the end of the sections in the text:

6.1/1,3,6,7-11,27,29,33,35,49, 53, 59
6.2/17, 23, 33, 37, 39, 60, 69-76
6.3/1, 19, 25, 27, 31, 41, 47

(Some of the material in 6.3 is slightly more advanced and we will discuss it in class. However, I do expect you to be able to add, multiply, and divide fractions on your own. I mean, seriously, come on.)

Feb 13

Topic: Continue Ch 5 (5.4,5.5)

Work for next period:

  1. Finish 5.4, Start 5.5
  2. Not a bad time to review 6.1-3

Homework from text:

Problems from 5.4 (due Wednesday F18, closes Wednesday F18)

Some remarks about Ch. 5

Feb 11

Topic: Continue Ch 5 (5.2,5.4)

Work for next period:

  1. Finish reading 5.2, start 5.4

Homework from text:

Problems from 5.2 (due Friday F13, closes Friday)

Some things to ask yourself when we do proofs in class.

Feb 9

Topic: Begin Number Theory (Ch 5)

Work for next period:

  1. Read 5.1, start on 5.2
  2. Bottom of P74 in Lecture notes

Homework from text:

Problems from 5.1 (due Wednesday, closes Friday)

Date: Assignment(s): Handouts
Jan 12

Topic:

Begin "Soft Intro" to course

Work for next period:

  1. Get a copy of the text.
  2. Get registered with MyMathLab
  3. Get clickered (Note: I've heard there is a phone app version of this that only requires $10/semester registration and a smartphone, but I don't know the details; try www.iclickergo.com)
  4. Check to make sure you're really registered (use grade status update link above)

Homework from text:

Other Homework:

Lecture
Notes

(UPDATED Feb 2)

Jan 14

Topic:

Continue "Soft intro" -- Flex the technology -- Notation

Work for next period (Jan 16):

  1. Read Text 2.1
  2. Watch THIS VIDEO (password is Math100) (Warning: audio goes out of sync at some point, I might try to fix it later tonight.)

Homework from text: None yet

Here is the 1st chapter of the book from which I took today's problem. The problem is on p17
Jan 16

Topic: Set Theory

Work for next period (Jan 21):

Read 2.2,2.3

Homework from text:
(PLEASE SEE ANNOUNCEMENT ON THE LEFT)

Click here for a printout of the 2.1-2 homework. Password is Math100. Note that when you do the problems online the order of the answers might be different.

2.1/19,21,61,69,71,77,79,87 2.2/7,11,13,15,19,21,41,45

Jan 19 MLK Day - No Class.
Jan 21

Topic: Set Theory

Work for next period (Jan 23):

Homework from text:
(PLEASE SEE ANNOUNCEMENT ON THE LEFT)

Click here for a printout of the 2.3 homework. Password is Math100. Note that when you do the problems online the order of the answers might be different.

2.3/7,9,15,17,19,27,29,65,71,77,81,83,101,113
2.1/45,47 2.extension.1/21

This was supposed to be a Video of the rest of my Friday lecture. The video is there, but the audio is missing from the beginning and end. I really need better video editing software.
Jan 23

Topic: Set Theory (concluded)

Work for next period (Jan 26):

Read Ch2 "Extension"
(Note that we're skipping 2.4!)

Watch this nice youtube video about infinity. This one is also relevant.

Read this short article about balls in drawers, infinity and intuition.

Homework from text:
Log into MyMathLab for the homework

Supplemental (optional) reading about sets - Ch2

Supplemental (optional) reading about infinite sets - Ch3

Jan 26

Topic: Logic

Work for next period (Jan 28):

Read 3.1

Watch this youtube video (the one I couldn't show in class). There will be a short quiz on it tomorrow (Wednesday).

Read this excerpt from Ionescu's play Rhinoceros. There will be some homework from it due for Friday.

Homework from text:
3.1, due Friday; see MyMathLab for the homework

The Rhoceros excerpt in .pdf form.

Jan 28

Topic: Logic continued
Work for next period (Jan 30):

Rhinoceros homework: download this file, print the second page only, fill out and hand in on Friday.)

There might be a short video, watch this space. I've decided I'd rather discuss negations and conjunctions in class rather than by video, so what I have done instead is move the 'hard' deadline in the MyMathLab assignment on 3.1 to Monday.

I will probably have at least one video lecture on truth tables. over the weekend.

Text homework:

3.2, 3.3 (see MyMathLab). Start on it now, though it won't be due until next week

Jan 30

Topic: Logic continued
Work for next period (Feb 2):

Read 3.4,3.6

VIDEO ON TRUTH TABLES
(usual password)

Smartphone-friendly version (no password, but inferior quality)

(I'll try to create a smartphone-friendly version tonight.)

Text homework:

Keep working on the HW from 3.1-3.1 (due Feb 4)
Added: HW from 3.4 and 3.6 (due Feb 6, same as exam)

Feb 2 Tennis example from class
Feb 4
Feb 5 I will have extra office hours Thursday, Feb 5, at least 4-5:00pm but if there are still students at that point I can stay as long as you need me
Feb 6 Exam I, Set Theory and Logic (Ch. 2,3)

SOME INFORMATION