408.864.8268

s54a

(OFFICE HOURS M-Th 10:35am-11:00am & 4:00pm-4:40pm in S43)

- tue oct 16 @ 5.45pm
- See instructions from Sun Oct 7 posting (below).
- You will pick up your ungraded quizzes on Wed Oct 17 (or Thu Oct 18 for Tue/Thu 1.30pm class).
- 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 Tue Oct 23 @ 4:40pm (or Wed Oct 24 @ 4.40pm for Tue/Thu 1.30pm class).
- Your graded quizzes are due in class on Wed Oct 24 (or Thu Oct 25 for Tue/Thu 1.30pm class).
__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.

**Math 43:**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 43 Quiz 2 Version 1 Key

Math 43 Quiz 2 Version 2 Key

Math 43 Quiz 2 Version 3 Key

Math 43 Quiz 2 Version 4 Key

Math 43 Quiz 2 Version 5 Key

Math 43 Quiz 2 Version 6 Key

Math 43 Quiz 2 Version 7 Key

Math 43 Quiz 2 Version 8 Key

Math 43 Quiz 2 Version 9 Key

Math 43 Quiz 2 Version 10 Key

Math 43 Quiz 2 Version 11 Key

Math 43 Quiz 2 Version 12 Key

- wed oct 10 @ 7.00am
**Math 43:**Here is the PowerPoint showing how the constants of certain polar functions impact their graphs.

- sun oct 7 @ 2.45pm
- 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 near the marked item.
- You will pick up your ungraded quizzes on Mon Oct 8 or Tue Oct 9 (the first class meeting this week).
- 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 work is (are) different from the key, but (you think) still correct,__

put an asterisk * next to that work, and come to office hours to defend your work and possibly 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 Thu Oct 11 @ 4:40pm. - Your graded quizzes are due in class on Mon Oct 15 or Tue Oct 16 (the first class meeting next week).
__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.
- They grade in
**red pen**. - They underline the required parts of their solutions, and write the points next to them.
- In question 2, they got the first two steps correct, but simplified the complex fraction incorrectly.
- In question 3, they got the exponential formula for sinh(x+y), but did not know nor prove the identity correctly.
- In question 5a, they reversed the order of subtraction, which lead to subsequent errors in 5b and 5d.

They did get the identity in 5c correct.

In 5e, they incorrectly thought that if c/s = -5/4, then c = -5, which caused them not to do the required identity work. - They give themselves credit for only the parts of these questions that matched the grading key,

and choose not to defend their work for additional partial credit. - They fill in the subtotal for each question, and they fill in the total for the entire quiz (including the greensheet quiz score already listed).
**They could have earned more points**

if they had realized that their only error in question 5a was the order of subtraction,

and that the remaining work in 5b and 5d was consistent with that error (without oversimplifying the problem).

They should have come to office hours to defend their work.- They grade in
**red pen**. - They underline the required parts of their solutions, and write the points next to them.
- In question 1, they simplified the exponentials and logarithms correctly,

but simplified the resulting fraction incorrectly.

They give themselves credit for only the required steps which they got,

and choose not to defend their work for additional partial credit. - In question 2, they used an unsimplified version of coth x to do their intermediate work,

but ultimately got the correct final answer.

They feel that their work was an acceptable alternative,

and mark the three steps that don't match with asterisks. - In question 5e, they got the value of tanh x, but did not justify it.

Since the value of tanh x and the justification were only worth 1/2 point together as one step,

they feel that their answer was an acceptable alternative and mark that step with an asterisk.

They also got the sign of sech x, but did not justify it.

However, the justification was its own step this time,

so they choose not to pursue additional partial credit for that. - All other highlighted items from the grading key were present in their work.
- They give themselves credit for all the other parts that matched the grading key,

and will come to office hours to defend their work for additional partial credit. - They fill in the subtotal for the two questions they will not defend, but not the two they will defend.

They will fill in that score after they talk to me in office hours, and then they will fill in the total for the entire quiz.

**Math 43:**Once again, the following handout describes the self grading policy for quizzes.

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 43 Quiz 1 Version 1 Key

Math 43 Quiz 1 Version 2 Key

Math 43 Quiz 1 Version 3 Key

Math 43 Quiz 1 Version 4 Key

Math 43 Quiz 1 Version 5 Key

Math 43 Quiz 1 Version 6 Key

Math 43 Quiz 1 Version 7 Key

Math 43 Quiz 1 Version 8 Key

Math 43 Quiz 1 Version 9 Key

Math 43 Quiz 1 Version 10 Key

Math 43 Quiz 1 Version 11 Key

Math 43 Quiz 1 Version 12 Key

Here is a sample to show you what is required.

Notice that in this sample,

Here is another sample.

Notice that in this sample,

- Items marked (boxed, circled or underlined) in red are the correct answers or steps you needed to show to get credit.
- sun oct 7 @ 8.10am
**Math 43:**Here are various handouts related to polar conics (section 10.9) and parametric curves (section 10.6).

- sun oct 7 @ 7.40am
**Math 43:**Here is some advice from previous Math 43 students.

- sun oct 7 @ 7.40am
**Math 43:**Here is the midterm 1 review packet.

- sun oct 7 @ 7.40am
**Math 43:**Here is the updated score calculator which reflects that high scores on midterms 1 and 2 will allow you to recover points from the prerequisites test.

- sun sep 30 @ 8.00pm
**Math 43:**Here are various handouts related to polar (sections 10.7, 10.8).

- sat sep 22 @ 11.00am
**Math 43:**Here are some handouts you need for the first day of the quarter.

Math 43 Greensheet

Math 43 Schedule

Math 43 tentative homework list (will be updated over the quarter)

Math 43 prerequisites review

Math 43 score calculator

Math 43 self grading policy

Your prerequisites test (to test your familiarity with the prerequisites) will be given on the first class of week 2

and will count towards your grade for the quarter.

For part of the first week of class, you will be working in groups of 4 on the following worksheet to learn about hyperbolic functions.