bert lo
408.864.8268
s54a

welcome to spring quarter 2011
(OFFICE HOURS M-F 11:30am-12:20pm in S43)

If I just wanted an answer, I would have asked a computer
If I want a solution, I'll ask a person

A moment of historical ignorance: In 1897, Dr. Edwin Goodwin convinced the Indiana House of Representatives to unanimously pass a bill       which would have effectively pegged the value of Pi at 3.2, 3.23 or 4. Learning the similarities and differences between knowing and not knowing thoughts on grading and learning intuition multi-tasking 1 multi-tasking 2 why we make the same mistakes twice [pay attention to the last paragraph] don't put your faith in technology blindly Confidence a photographic metaphor on skill & confidence (click through) fake confidence helicopters self-compassion, not self-esteem ADDED MAY 2011 whining ADDED JUNE 2011 Cheating where cheating can get you cheating as a form of personality disorder Math in the Real World math will rock your world how math transforms industries how much math do you need to know marketing is more about analysis (numbers) than creativity nsa: security in numbers Money poor financial decision making & your credit cards

No one cares more about your success than you
So if you act like you don't care if you succeed, ...


• tue jun 14 @ 4:25pm
  
  
  Math 114: Here are the review packages for midterms 1, 2 and 3 again, along with a review package for the post-midterm 3 material. Do not only study the midterms, since the final exam may include question types which have never appeared on any midterm yet.
  
  Math 114 midterm 1 review
  Math 114 midterm 2 review
  Math 114 midterm 3 review
  Math 114 post-midterm 3 review
  
  
• tue jun 14 @ 4:25pm
  
  
  Math 1B: Here are the review packages for midterms 1, 2 and 3 again, along with a review package for the post-midterm 3 material. Do not only study the midterms, since the final exam may include question types which have never appeared on any midterm yet.
  
  Math 1B midterm 1 review
  Math 1B midterm 1 review answers
  Math 1B midterm 2 review (volume)
  Math 1B midterm 2 review (non-volume)
  Math 1B midterm 2 review answers
  Math 1B midterm 3 review
  Math 1B post-midterm 3 review
  
  
• tue jun 14 @ 1:25pm
  
  
  Math 1B: Here are the solution keys to use for grading Quiz 8.
  You can tell which version of the quiz you had by the title in the upper left corner.
  
  Math 1B quiz 8 (7:30 version D)
  Math 1B quiz 8 (7:30 version I)
  Math 1B quiz 8 (7:30 version S)
  Math 1B quiz 8 (7:30 version C)
  Math 1B quiz 8 (9:30 version O)
  Math 1B quiz 8 (9:30 version V)
  Math 1B quiz 8 (9:30 version E)
  Math 1B quiz 8 (9:30 version R)
  
  
  • See instructions from Tue Apr 12 posting (below).
  • You will pick up your ungraded quizzes on Mon Jun 13.
  • If you have any questions about whether you should earn points for a different method, or for a single algebraic or arithmetic error, you must talk to me no later than Wed Jun 8.
  • Your graded quizzes are due in class on Mon Jun 20. If you do not resubmit the graded quizzes by that date, you will get 0 for the quiz.
  • You may also submit your graded quiz early.
  
  
• tue jun 14 @ 11:05am
  
  
  Math 1B: Here are the solution keys for Midterm 3.
  You can tell which version of the midterm you had by the title in the upper left corner.
  
  Math 1B midterm 3 solution (7:30 version S)
  Math 1B midterm 3 solution (7:30 version U)
  Math 1B midterm 3 solution (7:30 version N)
  Math 1B midterm 3 solution (7:30 version B)
  Math 1B midterm 3 solution (9:30 version L)
  Math 1B midterm 3 solution (9:30 version O)
  Math 1B midterm 3 solution (9:30 version C)
  Math 1B midterm 3 solution (9:30 version K)
  
  
• tue jun 7 @ 2:25pm
  
  
  Math 114: Here are the solution keys for Midterm 3.
  You can tell which version of the midterm you had by the title in the upper left corner.
  
  Math 114 midterm 3 solution (version S - no calculator)
  Math 114 midterm 3 solution (version C - no calculator)
  Math 114 midterm 3 solution (version H - no calculator)
  Math 114 midterm 3 solution (version M - no calculator)
  Math 114 midterm 3 solution (version A - calculator)
  Math 114 midterm 3 solution (version L - calculator)
  Math 114 midterm 3 solution (version T - calculator)
  Math 114 midterm 3 solution (version Z - calculator)
  
  
• mon jun 6 @ 3:55pm
  
  
  Math 1B: Here's the review package for midterm 3. Read the directions before you start.
  
  Math 1B midterm 3 review
  
  
• fri jun 3 @ 11:55am
  
  
  Math 1B: Here are the solution keys to use for grading Quiz 7.
  You can tell which version of the quiz you had by the title in the upper left corner.
  
  Math 1B quiz 7 (7:30 version I)
  Math 1B quiz 7 (7:30 version N)
  Math 1B quiz 7 (7:30 version T)
  Math 1B quiz 7 (7:30 version E)
  Math 1B quiz 7 (9:30 version G)
  Math 1B quiz 7 (9:30 version R)
  Math 1B quiz 7 (9:30 version A)
  Math 1B quiz 7 (9:30 version L)
  
  
  • See instructions from Tue Apr 12 posting (below).
  • You will pick up your ungraded quizzes on Mon Jun 6.
  • If you have any questions about whether you should earn points for a different method, or for a single algebraic or arithmetic error, you must talk to me no later than Wed Jun 8.
  • Your graded quizzes are due in class on Thu Jun 9. If you do not resubmit the graded quizzes by that date, you will get 0 for the quiz.
  • You may also submit your graded quiz early.
  
  
• sun may 29 @ 11:55pm
  
  
  Math 114: Here's the review package for midterm 3.
  
  Math 114 midterm 3 review
  
  
• sun may 29 @ 11:50pm
  
  
  Math 114: Here's a handout which we will cover in class on Wed Jun 1. Print out your own copy and bring it with you to class on Wednesday.
  
  Math 114 finance handout
  
  
• tue may 24 @ 2:15pm
  
  
  Math 1B: Here are the solution keys for Midterm 2.
  You can tell which version of the midterm you had by the title in the upper left corner.
  
  Math 1B midterm 2 solution (7:30 version W)
  Math 1B midterm 2 solution (7:30 version I)
  Math 1B midterm 2 solution (7:30 version N)
  Math 1B midterm 2 solution (7:30 version E)
  Math 1B midterm 2 solution (9:30 version C)
  Math 1B midterm 2 solution (9:30 version O)
  Math 1B midterm 2 solution (9:30 version R)
  Math 1B midterm 2 solution (9:30 version K)
  
  
• tue may 24 @ 2:10pm
  
  
  Math 1B: Here are the solution keys to use for grading Quiz 6.
  You can tell which version of the quiz you had by the title in the upper left corner.
  For the hydrostatic force question, use only the solution that corresponds to the scale you used.
  
  Math 1B quiz 6 (7:30 version W / 9:30 Version P)
  Math 1B quiz 6 (7:30 version O / 9:30 Version L)
  Math 1B quiz 6 (7:30 version R / 9:30 Version A)
  Math 1B quiz 6 (7:30 version K / 9:30 Version Y)
  
  
  • See instructions from Tue Apr 12 posting (below).
  • You will pick up your ungraded quizzes on Wed May 25.
  • If you have any questions about whether you should earn points for a different method, or for a single algebraic or arithmetic error, you must talk to me no later than Wed May 25.
  • Your graded quizzes are due in class on Tue May 31. If you do not resubmit the graded quizzes by that date, you will get 0 for the quiz.
  • You may also submit your graded quiz early.
  
  
• mon may 23 @ 6:45pm
  
  
  Math 1B: Here is a handout which explains an efficient way to do integration by parts in various situations.
  
  Math 1B integration by parts (table method)
  
  
• mon may 23 @ 6:45pm
  
  
  Math 114: Here are the solution keys for Midterm 2.
  You can tell which version of the midterm you had by the title in the upper left corner.
  
  Math 114 midterm 2 solution (version M)
  Math 114 midterm 2 solution (version A)
  Math 114 midterm 2 solution (version T)
  Math 114 midterm 2 solution (version H)
  
  
• fri may 20 @ 6:20pm
  
  
  Math 1B: Here are temporary solution keys for Quiz 6.
  You can tell which version of the quiz you had by the title in the upper left corner.
  
  Math 1B quiz 6 (7:30 version W / 9:30 Version P)
  Math 1B quiz 6 (7:30 version O / 9:30 Version L)
  Math 1B quiz 6 (7:30 version R / 9:30 Version A)
  Math 1B quiz 6 (7:30 version K / 9:30 Version Y)
  
  Official grading keys will be posted next week.
  
  
• tue may 17 @ 3:30pm
  
  
  Math 114: Here are some handouts relevant to section 19.2.1 and 19.3.1. Bring copies of these to lecture on Fri May 20 and Mon May 23.
  
  Math 114 graphing exponential and logarithmic functions
  Math 114 relationship between exponents and logarithms
  Math 114 change of base formula for calculators
  
  
• sun may 15 @ 10:40pm
  
  
  Math 1B: Here are explanations for some of the solutions in quiz 5.
  
  Math 1B quiz 5 explanations
  
  
• fri may 13 @ 6:40pm
  
  
  Math 1B: Here's the review package for midterm 2. Read the directions before you start.
  
  Math 1B midterm 2 review (volume)
  Math 1B midterm 2 review (non-volume)
  Math 1B midterm 2 review answers
  
  
• fri may 13 @ 11:20am
  
  
  Math 1B: Here are the solution keys to use for grading Quiz 5.
  You can tell which version of the quiz you had by the title in the upper left corner.
  
  Math 1B quiz 5 grading key (7:30 version 8)
  Math 1B quiz 5 grading key (7:30 version 6)
  Math 1B quiz 5 grading key (7:30 version 7)
  Math 1B quiz 5 grading key (7:30 version 5)
  Math 1B quiz 5 grading key (9:30 version 3)
  Math 1B quiz 5 grading key (9:30 version 0)
  Math 1B quiz 5 grading key (9:30 version 9)
  Math 1B quiz 5 grading key (9:30 version J)
  
  
  • See instructions from Tue Apr 12 posting (below).
  • You will pick up your ungraded quizzes on Mon May 16.
  • If you have any questions about whether you should earn points for a different method, or for a single algebraic or arithmetic error, you must talk to me no later than Wed May 18.
  • Your graded quizzes are due in class on Thu May 19. If you do not resubmit the graded quizzes by that date, you will get 0 for the quiz.
  • You may also submit your graded quiz early.
  
  
• tue may 10 @ 8:40am
  
  
  Math 114: Here's the review package for midterm 2.
  
  Math 114 midterm 2 review
  
  
• fri may 6 @ 3:45pm
  
  
  Math 1B: Here are the solution keys to use for grading Quiz 4.
  You can tell which version of the quiz you had by the title in the upper left corner.
  
  Math 1B quiz 4 grading key (7:30 versions D & U / 9:30 versions S & W)
  Math 1B quiz 4 grading key (7:30 versions C & K / 9:30 versions A & N)
  
  
  • See instructions from Tue Apr 12 posting (below).
  • You will pick up your ungraded quizzes on Mon May 9.
  • If you have any questions about whether you should earn points for a different method, or for a single algebraic or arithmetic error, you must talk to me no later than Wed May 11.
  • Your graded quizzes are due in class on Thu May 12. If you do not resubmit the graded quizzes by that date, you will get 0 for the quiz.
  • You may also submit your graded quiz early.
  
  
• wed may 4 @ 4:30pm
  
  
  Math 114: Here is the additional radical equations (14.3.1) homework. It is due in class on Mon May 9.
  
  Math 114 radical equations additional homework
  
  In addition, here is the absolute value translation handout that you will need to practice for midterm 2.
  
  Math 114 absolute value translation handout
  
  
• wed may 4 @ 4:30pm
  
  
  Math 1B: Here is a handout to help you decide how to set up a volume integral.
  
  Math 1B volume handout
  
  
• wed apr 27 @ 3:45pm
  
  
  Math 1B: Here are the solution keys for Midterm 1.
  You can tell which version of the midterm you had by the title in the upper left corner.
  
  Math 1B midterm 1 solution (7:30 class versions B, E, A & R)
  Math 1B midterm 1 solution (9:30 class versions W, O, L & F)
  
  
• wed apr 27 @ 3:45pm
  
  
  Math 114: Here are the solution keys for Midterm 1.
  You can tell which version of the midterm you had by the title in the upper left corner.
  
  Math 114 midterm 1 solution (versions L & V)
  Math 114 midterm 1 solution (versions O & E)
  
  
• tue apr 26 @ 4:25pm
  
  
  Math 1B: Here is a worksheet you should fill out if you're not comfortable with the relationships between a function and its first and second derivatives.
  
  Math 1A derivative connections
  
  
• mon apr 25 @ 11:05am
  
  
  Math 1B: Here are the answers for the review package for midterm 1.
  
  Math 1B midterm 1 review answers
  
  
• mon apr 25 @ 11:00am
  
  
  Math 1B: Here are the solution keys to use for grading Quiz 3.
  You can tell which version of the quiz you had by the title in the upper left corner.
  
  Math 1B quiz 3 grading key (7:30 class versions L & T)
  Math 1B quiz 3 grading key (7:30 class versions A & R)
  Math 1B quiz 3 grading key (9:30 class versions D & O)
  Math 1B quiz 3 grading key (9:30 class versions Y & N)
  
  
  • See instructions from Tue Apr 12 posting (below).
  • You will pick up your ungraded quizzes on Tue Apr 26.
  • If you have any questions about whether you should earn points for a different method, or for a single algebraic or arithmetic error, you must talk to me no later than Fri Apr 29.
  • Your graded quizzes are due in class on Mon May 2. If you do not resubmit the graded quizzes by that date, you will get 0 for the quiz.
  • You may also submit your graded quiz early.
  
  
• fri apr 22 @ 6:20pm
  
  
  Math 1B: Here are the hints for the review package for midterm 1.
  
  Math 1B midterm 1 review hints
  
  
• mon apr 18 @ 10:20pm
  
  
  Math 1B: Here's the review package for midterm 1.
  
  Math 1B midterm 1 review
  
  
• sat apr 16 @ 7:55am
  
  
  Math 114: Here's the review package for midterm 1.
  
  Math 114 midterm 1 review
  
  
• fri apr 15 @ 6:20pm
  
  
  Math 114: Here's a handout which we will cover in class on Wed Apr 20. Print out your own copy (preferably on a color printer) and bring it with you to class on Wednesday. I will only be bringing a few copies to class myself, and they will be in black and white, so they will not be as useful as if you print your own in color.
  
  Math 114 variation handout
  
  
• fri apr 15 @ 5:00pm
  
  
  Math 1B: Here are the solution keys to use for grading Quiz 2.
  You can tell which version of the quiz you had by the title in the upper left corner.
  
  Math 1B quiz 2 grading key (7:30 class version D / 9:30 class version P)
  Math 1B quiz 2 grading key (7:30 class version A / 9:30 class version U)
  Math 1B quiz 2 grading key (7:30 class version F / 9:30 class version N)
  Math 1B quiz 2 grading key (7:30 class version T / 9:30 class version K)
  
  
  • See instructions from Tue Apr 12 posting (below).
  • You will pick up your ungraded quizzes on Mon Apr 18.
  • If you have any questions about whether you should earn points for a different method, or for a single algebraic or arithmetic error, you must talk to me no later than Thu Apr 21.
  • Your graded quizzes are due in class on Fri Apr 22. If you do not resubmit the graded quizzes by that date, you will get 0 for the quiz.
  • You may also submit your graded quiz early.
  
  
• tue apr 12 @ 4:00pm
  
  
  Math 1B: Once again, the following handout describes the self grading policy for quizzes.
  
  
  • Self grading policy
    
    
  Here are the solution keys to use for grading Quiz 1.
  You can tell which version of the quiz you had by the title in the upper left corner.
  
  Math 1B quiz 1 grading key (7:30 class version K)
  Math 1B quiz 1 grading key (7:30 class version R)
  Math 1B quiz 1 grading key (9:30 class version U)
  Math 1B quiz 1 grading key (9:30 class version G)
  
  
  • Items marked (boxed, circled or underlined) in red are the correct answers or steps you needed to show to get credit.
    (You do not automatically earn full credit for correct answers. You must also show correct work.)
  • The number of points for each item is next to the marked item.
  • You will pick up your ungraded quizzes on Wed Apr 13.
  • Do your grading in red pen.
    Blue, black, pencil, highlighter etc. are not OK. 3 point service charge for using any of those.
  • Underline the parts of your work that match the marked work on the solution key,
    and next to them, write the number of points you earned on each part.
  • If some step(s) of your algebra is (are) different from the key, but still correct, put an asterisk * next to the points for that part, and come to office hours to defend your work and get the credit.
  • Write the number of points you earned for each question in the SCORE: area to the right of that question.
  • Write your total score for the quiz in the SCORE: area on the upper left corner of the front side of the quiz, just beneath the date.
    3 point service charge for not subtotalling or totalling the points.
  • If you have any questions about whether you should earn points for a different method, or for a single algebraic or arithmetic error, you must talk to me no later than Fri Apr 15.
  • Your graded quizzes are due in class on Mon Apr 18. If you do not resubmit the graded quizzes by that date, you will get 0 for the quiz.
  • You may also submit your graded quiz early.
  
  Here is a sample to show you what is required.
  
  Math 1B quiz 1 grading sample 1
  
  Notice that in this sample,
  
  
  • They grade in red.
    
  • They underline the required parts of their solutions, and write the points next to them.
    
  • In the first question, they didn't write that the denominator approaches 0 from the right, but they did write that the denominator approaches 0.
    They feel they deserve partial credit, so they mark it with an asterisk (*), then they come talk to me in office hours to defend their work.
    I give them half of the point that was allocated for that piece of work.
    
  • In the third question, they only got the limit part correct, so they only give themselves the quarter point for that.
    They decide not to argue for partial credit for anything else, so they do not put an asterisk (*) next to anything.
    
  • In the fifth question, they got the denominator of the derivative of the inverse hyperbolic cosine correct, but not the numerator.
    They also simplified the square root in the denominator, but without the absolute value.
    They feel they deserve partial credit for these, so they mark them with asterisks (*) and talk to me in office hours.
    I give them half of the points for each of these.
    They decide not to argue for partial credit for anything else.
    
  • In the sixth question, they made an arithmetic error in the final answer, but they showed the steps that lead all the way up to it.
    They feel they deserve partial credit, so they mark it with an asterisk (*), then they come talk to me in office hours to defend their work.
    I give them half of the point that was allocated for that piece of work.
    
  • In the seventh question, they only got the formula for the inverse hyperbolic tangent correct, so they only give themselves the half point for that.
    There is no other work to argue for partial credit, so they do not put an asterisk (*) next to anything.
    
  • They fill in the subtotal for each question, as well as the total score for the quiz.
  
  Here is another sample.
  
  Math 1B quiz 1 grading sample 2
  
  Notice that in this sample,
  
  
  • They grade in red.
    
  • They underline the required parts of their solutions, and write the points next to them.
    
  • In the third question, they went past the required solution, so they have to grade their final solution.
    The argument to their cosine is different from mine, but they feel it is algebraically equivalent, so they mark it with an asterisk (*), then come talk to me in office hours to defend their work.
    I give them the full credit for that piece of work.
    However, the difference is so minor and obviously algebraically equivalent, so it wasn't really necessary to defend their work.
    
  • In the fifth question, they forgot the absolute value when simplifying the square root, which also affects their final answer.
    They feel they deserve partial credit, so they mark it with an asterisk (*), then come talk to me in office hours to defend their work.
    They haven't spoken to me yet, so they leave the points on this question blank for now.
    
  • They fill in the subtotal for each question except the one they must defend.
    They will fill in that one after they talk to me in office hours, and then they will fill in the total for the entire quiz.
  
  
• mon apr 4 @ 3:50pm
  
  
  Math 1B: Here is the list of prerequisite material you should review for the diagnostic quiz on Friday. I have included some sample questions as well as references to questions from your textbook to practice.
  
  
  • Math 1B prerequisites review
  
  I will not be giving solutions to the sample questions. So, please work together, and make use of the group tutors on Wed Apr 6 (10:30am-11:20am & 1:30pm-2:20pm in S43M).
  
  
• sun apr 3 @ 6:35pm
  
  
  Math 114: Here are the various handouts you need for the first day of the quarter.
  
  
  • Math 114 greensheet
  • Math 114 tentative schedule
  
  
• fri apr 1 @ 3:15pm
  
  
  Math 1B: Here are the various handouts you should bring with you on the first day of the quarter.
  
  
  • Math 1B greensheet
  • Math 1B tentative schedule
  • Math 1B diary
  • Math 1B tentative homework list
  
  The following handout describes the self grading policy for quizzes.
  
  
  • Self grading policy
  
  There will be a significant emphasis on knowing definitions and theorems in this class. The following handouts will help you understand why, as well as how to interpret certain questions (regarding theorems) that might appear on tests.
  
  
  • Why are theorems important ?
  • What's the difference between a definition and a theorem ?
  • The language of theorems (with Math 1A exercises)
  
  This is a supplementary handout on hyperbolic functions, our first topic of the quarter. It is not mandatory, but it will give you lots of extra practice. You should already be able to handle all the questions except 8bde and 14.
  
  
  • Math 1B hyperbolic functions supplement
  
  And some friendly advice from last quarter's Math 1A students on how to succeed.
  
  
  • Advice from previous students
  
  

farewell to winter quarter 2011