MATH 141 - PRECALCULUS

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• CLASS & HOMEWORK – TENTATIVE SCHEDULE (FALL 2017)

WHEN THERE'S A TEST:

BRING A SCIENTIFIC CALCULATOR (FORBIDDEN ON SOME PARTS), A PENCIL + ERASER, AND YOUR HOMEWORK!

Tu (8/22; Day 1): Hello, Sections 0.1 to 0.5 (Part B).

THINK ABOUT DOING ALEKS FOR EXTRA CREDIT!

You can do the HW through 0.5, #1.

Th (8/24; Day 2): Sections 0.5 (Part C) to 0.7. Look at Factoring Problems.

You can do the HW through 0.7.

Tu (8/29; Day 3): Sections 0.8 to 0.10.

You can do the HW through 0.10.

• Next time, I will hand out black-and-white copies of 0.11, 0.12, and 0.15 in class.

Th (8/31; Day 4): Sections 0.11 to 0.16. Bring questions (+ HW / Answer handouts), the old test, and the online outline of exam topics for next time.

You can do the HW for Ch.0. Only the Ch.0 HW is due at the first exam.

• I will hand out black-and-white copies of 0.11, 0.12, and 0.15 in class.

FRIDAY (9/1): CENSUS: BIG DEADLINE FOR ADD CODES, DROPPING WITHOUT A 'W', and REFUND DEADLINE.

MONDAY (9/4): HOLIDAY / NO CLASSES – DOESN’T AFFECT OUR CLASS

Tu (9/5; Day 5): Section 1.1 (skim the part before Example 8), and Section 1.2. Quiz 1A only covers Ch.0, though. Questions. Bring questions (+ HW / Answer handouts), the old test, and the online outline of exam topics.

You can do the HW through 1.2. (Only the Ch.0 HW is due at the first test, though.)

Th (9/7; Day 6): QUIZ 1A (Chapter 0), HW DUE (Ch.0 only), BRING A SCIENTIFIC CALCULATOR. I will ask you to indicate whether or not you can print the solutions off of my website.

Section 1.3.

Tu (9/12; Day 7): Do Sections 1.4, 1.5 (Parts F and G are optional reading for previewing calculus), and 1.6. (We are skimming over domains of composite functions, as they are set up in 1.6; you don’t have to do those parts of the HW. Also, the word problems in 1.6, Part F are optional reading.)

You can do the HW through 1.6.

Th (9/14; Day 8): Do Sections 1.7 (Parts B and C), 1.8, 1.9, and 1.10 (and skim Section 1.11, though 1.11 won’t be on your test). Can do HW for Ch.1. Bring questions (+ HW / Answer handouts), the old test, and the online outline of exam topics for next time.

• Think About It: What linear functions are their own inverses? Think graphically. Think of a pair of dice adding up to 7 and the symmetries therein.

Tu (9/19; Day 9): Sections 2.1 and 2.2. Questions. Bring questions (+ HW / Answer handouts), the old test, and the online outline of exam topics. Can do HW through 2.2.

Th (9/21; Day 10): QUIZ 1B (Chapter 1), HW DUE (Ch.1 only), BRING A SCIENTIFIC CALCULATOR.

• Sections 2.3 and 2.4 (through Part D, Notes 2.38). Can do HW through 2.4, #5.

FRIDAY (9/22): DEADLINE FOR PASS / NO PASS PETITIONS

Tu (9/26; Day 11): Finish Section 2.4 and Do Section 2.5 and the “QF” Method for Factoring Quadratics; we will skip part I (on the Upper and Lower Bound Rules, which will not be on our tests, though skim it sometime).

You can do HW through 2.5.

Th (9/28; Day 12): Sections 2.6 and 2.7.

You can do HW through 2.7.

Tu (10/3; Day 13): Do Sections 3.1, 3.2, and 3.3.

You can do HW through 3.3.

Th (10/5; Day 14): Do Sections 3.4/3.5, Do Section 4.1. Bring questions (+ HW / Answer handouts), the old test, and the online outline of exam topics for next time.

You can do all of HW #2 and HW #3, 4.1.

Tu (10/10; Day 15): Do Sections 4.2-4.4: Notes 4.08 through middle of 4.23 (through middle of Part C). Questions. Can do HW #3 through 4.2-4.4, #8. Bring questions (+ HW / Answer handouts), the old test, and the online outline of exam topics.

            • Handout in class: Basic Trig IDs (also in 5.1 notes)

Th (10/12; Day 16): MIDTERM 2 (Chs. 2 and 3), HW DUE, BRING A SCIENTIFIC CALCULATOR AND MAYBE SOME READING MATERIAL OR SOME HOMEWORK TO WORK ON IF YOU FINISH PART 1 EARLY. The exam will be divided into two parts, with calculators forbidden on the second part. You may want to bring reading material or work in case you finish Part 1 early. You may leave after you are done with Part 2.

Tu (10/17; Day 17): Notes 4.23 (bottom) to 4.52 (do 4.31-4.32 later). Finish Sections 4.2-4.4 (do Part F later when we do 4.7 and Part G later when we do 4.8) and do Section 4.5. Can do HW through 4.5.

Th (10/19; Day 18): Notes 4.53 to 4.79: Sections 4.6 and 4.7 (through Part D). Can do HW through 4.7, #4.

Tu (10/24; Day 19): Notes 4.80 to 4.92 (skip Part C on 4.93): Finish Section 4.7. Do Section 4.8. Also, Part F and Part G from Sections 4.2-4.4 (Notes 4.31-4.32) on inverse trig functions and word problems. Start 5.1 (Parts A-D; Notes 5.01 to 5.04). Can do all HW for Ch.4 and 5.1, #1-2. Bring questions (+ HW / Answer handouts), the old test, and the online outline of exam topics for next time.

Th (10/26; Day 20): Notes 5.05 to 5.21: Finish Section 5.1; remember Handout: Basic Trig IDs (also in 5.1 notes). Section 5.2. Questions. Bring questions (+ HW / Answer handouts), the old test, and the online outline of exam topics.

FRIDAY (10/27): ‘W’ DEADLINE (IF YOU STAY IN, YOU GET AN EVALUATIVE GRADE; IT MAY NOT MATTER FOR REPETITION PURPOSES)

Tu (10/31; Day 21): MIDTERM 3 (Ch. 4), HW DUE, BRING A SCIENTIFIC CALCULATOR AND MAYBE SOME READING MATERIAL OR SOME HOMEWORK TO WORK ON IF YOU FINISH PART 1 EARLY. The exam will be divided into two parts, with calculators forbidden on the second part. You may want to bring reading material or work in case you finish Part 1 early. You may leave after you are done with Part 2.

Th (11/2; Day 22): Section 5.3, Sections 5.4 / 5.5 More Trig IDs Handout: Notes 5.22 to 5.41 and Handout. Handout is given out in class, but here it is: Handout. Memorize the IDs!! You do not have to memorize the product-to-sum IDs or the sum-to-product IDs, although you may be called upon to use them. Can do HW #4 up through 5.3.

Tu (11/7; Day 23): Finish Sections 5.4 / 5.5 (skim 5.53; it comes up in calculus), Do 6.1 and 6.2: Notes 5.42 to 5.52 and 6.01 to 6.17. Can do HW #4 up through 6.2.

The optional notes on 5.53 are elaborated on in Section 3.4 in Math 150: how trig comes up in derivatives and limits of difference quotients.

Th (11/9; Day 24): Do 6.3 and 6.4; skim 6.5 (6.5 is not on your test; there is an optional handout on this in the Notes for Midterm 4 page): Notes 6.18 to 6.38 [we skimmed 6.5]. Can finish HW #4. Bring questions (+ HW / Answer handouts), the old test, and the online outline of exam topics for next time.

FRIDAY (11/10): HOLIDAY / NO CLASSES – DOESN’T AFFECT OUR CLASS

Tu (11/14; Day 25): Do Sections 7.1-7.3 and Start Section 7.4 through Part C: Notes 7.01 to 7.21. Questions. Can do HW through 7.4, #1. Bring questions (+ HW / Answer handouts), the old test, and the online outline of exam topics.

Th (11/16; Day 26): MIDTERM 4 (Chs. 5, 6), HW DUE, BRING A SCIENTIFIC CALCULATOR AND MAYBE SOME READING MATERIAL OR SOME HOMEWORK TO WORK ON IF YOU FINISH PART 1 EARLY. The exam will be divided into two parts, with calculators forbidden on one part. You may want to bring reading material or work in case you finish Part 1 early. You may leave after you are done with Part 2.

THANKSGIVING BREAK (Mon., 11/20 THROUGH Sat., 11/25): NO CLASSES ALL WEEK!

Tu (11/28; Day 27): Finish 7.4: Notes 7.22 to 7.35, Discuss 7.5, 7.6 (we're not "doing" them). Start Section 8.1 (up through part of Part D, systems of two equations): Notes 8.01 to 8.14. In this class, we're doing a preview of the first three chapters of: Math254.html. Can do all HW on Ch.7 and some HW on 8.1 (up through #5, though #5 is optional).

Th (11/30; Day 28): Finish Section 8.1: Notes 8.15 to 8.25, but Skip 8.22-8.23 and also Parts H and I (8.26 to 8.33; this is not required material for the Final). Do Section 8.2: Notes 8.15 to 8.46; we will Skim Part G (8.44-8.46). (We are skimming Sections 8.3 and 8.5, and they will not be on your Final; the HW for 8.3 and 8.5 is optional.) Section 8.4: Notes 8.57 to 8.65 (8.66 on cross products is optional). The notes for Linear Algebra (Math 254) will elaborate. Can do HW through 8.2 and 8.4 (8.3/8.5 is optional).

Tu (12/5; Day 29): Do Sections 9.1/9.6 (Skip nPr) and 9.2 (Skip Part C): Notes 9.01 to 9.13. Most of Section 9.3 (Parts A, B, most of D; skip C): Notes 9.15 to 9.18 and 9.22-9.23. Can do HW through 9.3, #5.

Th (12/7; Day 30): Sections 9.3 (Start with Part D, Skip Part C), 9.4, and 9.5 (see Math 119 notes and websites on Pascal’s triangle: Notes for Quiz 2): Notes 9.24 to 9.32. Can do all HW through Chapter 9. If we have time: introduce Ch.10 (conic sections): Section 10.3. Can do HW for 10.3. Bring questions (+ HW / Answer handouts) for next time, the old final, and the online outline of exam topics.

• FUN WITH PASCAL'S TRIANGLE: The Magic of Pascal's Triangle (Plinko from The Price is Right and Word Jumbles). Also: http://www.mathsisfun.com/pascals-triangle.htmlhttp://www.jcu.edu/math/isep/Quincunx/Quincunx.html http://www.ms.uky.edu/~mai/java/stat/GaltonMachine.htmlhttp://en.wikipedia.org/wiki/Bean_machine (Wikipedia article) … http://en.wikipedia.org/wiki/Quincunx (Wikipedia article)

• YOUTUBE GAME SHOW LINKS: The Price is Right / Plinko winner (the Plinko board is in the second half): http://www.youtube.com/watch?v=vuMir11YFPs. What does this have to do with Pascal’s triangle?

Tu (12/12; Day 31): Finish Chapter 10. HW for 10.4 is optional. WE’LL SEE HOW FAR WE GET WITH CHAPTER 10 IN CLASS. Bring questions (+ HW / Answer handouts), the old final, and the online outline of exam topics.

• ANIMATION ON CONICS: https://www.youtube.com/watch?v=HO2zAU3Eppo ; Corrections: (0:48-1:07) The double-nappe cone (or simply “cone”) here should not be thought of as finite, so there are no “bases” and there is no “base perimeter.”  The term “directrix” is used elsewhere, especially when describing parabolas.

Th (12/14; Day 32): FINAL, HW DUE (YOU MAY WANT TO PHOTOCOPY IT IF YOU WON'T SEE ME LATER), BRING A SCIENTIFIC CALCULATOR (WE MAY RUN OUT!). LAST DAY FOR ALEKS EXTRA CREDIT. Have a great break! Keep checking the website.

END OF SEMESTER: SATURDAY, 12/16

GRADES AVAILABLE ONLINE

http://studentweb.sdccd.edu; you can email me. Email me

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