MAT 125: Calculus 2
Fall 2021
Basic Information
- Instructor: Jed Yang,
- Office hours: Tuesday and Friday 13:30–14:30; or by appointment (instructions)
- Lectures: Mod C (MWF 11:10–12:20) in Zoom
- Course website: https://www.mathcs.bethel.edu/yang/mat125.21f/
Calendar
Daily/weekly schedule to be updated throughout the term; topics and exam dates are tentative and subject to change.Before class, please read the textbook section(s) to be covered. After class, start doing the homework assigned that day as soon as possible. Unless otherwise stated, homework will be due at the beginning of next class.
Date | Agenda | Homework |
---|---|---|
Unit 1: integration | ||
Week 1: Chapter 5 review | ||
1. 08/30 M | Introduction; Chapter 5 review | hw02: Getting started |
2. 09/01 W | Mathematica (Mma) crash course | hw03: Review |
3. 09/03 F | 6.1, 6.2 construct antiderivatives | hw04: 6.1 # 8, 9, 12, 13, 15 (plot x against t), 19, 28.
6.2 # 5, 28, 32, 36, 58*, 64, 67 (show the plot), 82. Additional problem*: find $\int\left(t \sqrt t + \frac{1}{\sqrt t}\right)dt$. * For 58 and additional problem: check using Mma, export as one PDF. As always, please scan all written portions as one PDF. |
Week 2: Chapter 6 antidifferentiation | ||
4. 09/08 W | 6.3 differential equations | hw05: 6.3 # 1, 7, 9, 11, 14, 16, 20, 26*, 29.
* 26: Do parts (b) and (c) on Mma. For part (c), label the particular solution with drawing tools (or by hand). As always, export Mma work as a PDF and upload. |
5. 09/10 F | 6.4 fundamental theorem | hw06: 6.4 # 1*, 3*, 9, 13, 16, 23, 39, 41, 42.
* For starred problems, use Mma (download palette from Moodle) with $n=100$ to calculate the numerical values requested by the problems. If you get errors about division by 0, use $a=0.0001$ instead. |
Week 3: Chapter 7 integration techniques | ||
6. 09/13 M | 7.1 substitution | hw07: 7.1 # 16, 19, 20, 22, 27, 28, 35, 37, 39, 53, 54, 56, 141.
Additional problem: find $\int \sin^3x\,dx$ using the identity $\cos^2x+\sin^2x=1$ and $\sin^3x=\sin^2x\cdot\sin x$. |
7. 09/15 W | 7.2 by parts | hw08: 7.1 # 58, 68, 78, 115, 116, 123.
7.2 # 5, 6 (use #5), 9, 20. Additional problems:
|
8. 09/17 F | 7.4 partial fractions | hw09: 7.2 # 13, 21, 22, 29, 35, 40, 41, 54.
7.4 # 39, 47. |
Week 4 | ||
9. 09/20 M | 7.3 tables | hw10: Handout on Moodle.
Read project description, bring laptop with Mma next class. Pre-read 7.5 and/or bring textbook to class. |
10. 09/22 W | 7.5 numerical integration | None; work on project. |
11. 09/24 F | (project work day) | |
Week 5 | ||
12. 09/27 M | 7.6 improper integrals, type 1 | |
13. 09/29 W | 7.6 improper integrals, type 2 | |
14. 10/01 F | exam1 (topics and tips) | hw15: 7.6 # 12, 16–19, 21 (may use table), 36, 37, 43.
Additional problem: $\int_1^2\frac{dx}{x \ln x}$. |
Week 6: Chapter 8 applications of integration | ||
15. 10/04 M | 7.7 comparison | hw16: 7.7 # 12*, 14, 15, 21, 22*, 24, 26b.
* For starred problems, first prove the integral converges and find
an upper bound, then use a |
16. 10/06 W | 8.1 volumes by slicing | hw17: 8.1 # 17*, 18*, 32, 35, 37.
8.2 # 43, 44. * Show one slice first. |
Week 7 | ||
17. 10/11 M | 8.2 solids of revolution Gateway (topics and tips) | hw18: 8.2 # 6, 9, 14, 18, 19, 38*, 39*, 46, 47, 67*.
For underlined problems, set up, but do not evaluate, the integrals. * 38, 39: set up, but do not evaluate, the Riemann sums. * 67: Use Mma; add |
18. 10/13 W | 8.4, 8.5 physics | hw19: 8.4 # 5, 6, 16*, 22.
Use * 16c: use trial and error. 8.5 # four additional problems listed at the end of handout. |
19. 10/15 F | 8.7, 8.8 probability and statistics | hw20: 8.7 # 1, 21, 24.
8.8 # 2, 7, 10. |
Unit 2: sequences and series | ||
Week 8: Chapter 9 sequences and series | ||
20. 10/18 M | 9.1 sequences | hw21: 9.1 # 3, 4, 11, 12, 15, 17*, 19*, 20*, 24*, 25, 28, 42, 43, 54.
* For starred problems, also plot with Mma as we did in class. |
21. 10/20 W | 9.2 geometric series | hw22: 9.2 # 9, 10, 15*, 22, 33, 35, 46.
* 15: Also find the sum of the series for all possible $x$ values. |
22. 10/22 F | 9.3 series | hw23: 9.3 # 5, 6, 9 (also draw a supporting picture), 10, 12, 15, 19, 21 (may use table), 24, 33, 37. |
Week 9: Chapter 10 using series | ||
23. 10/25 M | 9.4 convergence | hw24: 9.4 # 3–9 (odd only), 12–15, 20, 22–25, 35, 42, 44. |
24. 10/29 F | 10.1 Taylor polynomials
Last day for Gateway | hw25: 10.1 # 1, 6*, 15, 19, 21a, 29, 37*.
Compute all Taylor polynomials by hand, except 37a. * 6: Also use Mma to plot the function and polynomials together in the same graph, with $x$ from 0 to 2. * 37a: You may use Mma. |
Week 10 | ||
25. 11/01 M | 9.5, 10.2 power series | |
26. 11/03 W | exam2 (topics and tips) | hw27: 9.5 # 1–3, 19–21.
10.2 # 6*, 25*. * 6: Do this by hand, using technique from 10.1, not the binomial series on p.549. * 25: Use Mma. |
27. 11/05 F | 10.2, 10.3 Taylor series | hw28: 10.3 # 1, 5, 9, 21, 24, 26, 33, 35, 38. |
Week 11: Chapter 11 differential equations | ||
28. 11/08 M | 10.4 Taylor approximations | hw29: 10.4 # 5, 7, 15, 18, 19, 21, 22. |
Unit 3: differential equations | ||
29. 11/10 W | 11.1 differential equations | hw30: Packet. |
30. 11/12 F | 11.2 slope fields | hw31: Packet. |
Week 12 | ||
31. 11/15 M | 11.3 Euler's method | Project 2. |
32. 11/17 W | 11.4 separation of variables 11.5 growth and decay | hw33: Packet. |
33. 11/19 F | 11.6–11.8 modeling | hw34: 11.5 # 2, 9*, 21, 24, 27ab.
* 9: plot slope field with Mma. 11.6 # 10 (assume no leaves at first), 19, 25a. 11.7 # 8abc*, 25ab. * 8a: sketch all solution curves on a single plot by hand with quality of a 30-second sketch. 11.8 # 5, 9, 14. Due 11/29 M, at the same time as Project 3. |
Week 13 | ||
34. 11/22 M | modeling with Mathematica | Project 3. |
Unit 4: multivariable calculus | ||
Week 14: multivariable calculus | ||
35. 11/29 M | 12.1 multivariable functions | hw36: Packet. |
36. 12/01 W | 12.3 multivariable differentiation | None; study for exam3! |
37. 12/03 F | exam3 (topics and tips) | hw38: Packet. |
Week 15 | ||
38. 12/06 M | 12.8 multivariable optimization | hw39: Packet. |
39. 12/08 W | 13.1 multivariable integration | hw40: Packet. |
40. 12/10 F | (wrap-up) | None; study for exam4! |
Final Exam: 12/13 Monday 08:15–10:15 (topics and tips) |
Course Information
- Official course description: A continuation of the equipping of students with tools for effective problem solving. Study of integration, sequences and series, and introduction to differential equations and approximation techniques. Each topic is approached from several viewpoints (graphical, numerical, algebraic) to involve students with different learning styles.
- Prerequisites: MAT 124M: Calculus 1
- Textbook: Deborah Hughes-Hallett, Andrew M. Gleason, et al., Calculus, 6th edition, 2012, ISBN: 9780470888537.
- Materials: Student versions of Mathematica will be given to you. Graphing calculators are not required. Calculator functionality (including on computers and mobile phones) are not to be used during exams.
Topics
Calculus 2 is a course designed to delve deeper into understanding and applying the ideas of differentiation and integration introduced in Calculus 1. Our text stresses the Rule of Four: many mathematics problems can be approached from a numerical, graphical, algebraic, and verbal perspective. It may take time to adjust to this approach, but as we learn to consider problems from each of the four viewpoints, we will better understand the concepts and will be able to take part in more meaningful problem solving. Main topics we will cover:- Integration: techniques and applications
- Sequences and series
- Differential equations
- Multivariable calculus (a small introductory unit)
This course emphasizes thinking and problem solving over "rote" computational skills. However, some algebraic computation and manipulation is still important and will be tested (see Gateway exam).
Objectives
I will guide you in learning to:- Engage in the process of doing and learning mathematics.
- Think and understand mathematics as opposed to practice memorized procedures.
- Make connections between different mathematical representations: in data (numerical), symbolic (algebraic), visual (graphical), and descriptive (written and verbal) forms.
- Collaborate with peers both inside and outside of class.
- Use technology in mathematical investigations through solving problems with authentic, real-world (sometimes "messy") contexts.
- See mathematical principles at work in the natural world and in everyday life.
- Understand and apply important ideas and results in Calculus.
- Employ symbolic manipulation skills in the context of Calculus.
Structure and Adjustments
- We will meet via Zoom. The Zoom link can be found at the top of our Moodle page.
- Besides this change, this course will resemble a normal, in-person semester as much as possible.
- In particular, you will attend thrice-weekly class sessions to interact with course content, your peers, and the instructor.
- Your active participation in class is required and expected.
- The instructor reserves the right to make reasonable adjustments to the syllabus if necessary. These changes, if any, will be communicated to students in writing. The instructor will make a good-faith effort to help students adversely affected by such changes.
- Each student is asked to make a good-faith effort to try to adapt.
Grading
Your grade will be determined by a weighted arithmetic mean of various components with weights listed in the table on the right.component | weight |
---|---|
Participation | ±3% |
Homework, projects, and quizzes | 31% |
Midterm exams | 36% |
Gateway exam | 10% |
Cumulative final exam | 20% |
Note that there is no preset curve of how many of each letter grade will be given. If you all do A-level work, you will each get an A. As such, you are encouraged to help each other in the pursuit of perfection.
In many courses I intentionally make one exam harder than others, which gives me information (in a mathematical sense) in separating an A performance from an A- performance. Typically, I will let you know and adjust that exam's scores upward. What this means is that you should NOT care about how hard an exam is. If you do A-level work, you will get an A, regardless of the raw numerical score prior to adjustment.
Besides possibly adjusting scores upward for difficult exams, I also reserve the right to lower the grade cutoffs. Both of these help you. I will not hurt you by adjusting your exam scores downward or increasing the grade cutoffs.
Requirements
Whatever you do, work at it with all your heart, as working for the Lord, not for human masters, since you know that you will receive an inheritance from the Lord as a reward. It is the Lord Christ you are serving.I will be trying to make these verses true for me as I work with you throughout this course, and I hope that you will, too.- Colossians 3:23–24 NIV
Attendance and participation. I expect you to attend class. You may not notice me taking attendance during class meetings, but I will notice if you are not in class. Occasional absences will not impact your grade because what I look for is not mere attendance, but engagement and participation.
Indeed, coming to class is not just about showing up; it is also about being fully engaged in the learning experience. If you have a question, others in the class may also be wondering the same thing. So, please speak up and ask questions anytime you need to. Not only will you be helping yourself, but also you will be helping your peers. Attending office hours is another great opportunity to ask questions.
Be mindful of others. Refrain from using mobile phones or laptops for activities unrelated to the learning process. There is research that suggests taking notes by hand is better for long-term retention (P. A. Mueller and D. M. Oppenheimer, The pen is mightier than the keyboard, Psychological Science 25 (2014), 1159–1168).
In general, you are expected to keep your video on most of the time to make your engagement more clear. Let me know if there are legitimate reasons why you need to be off-camera frequently.
It is my sincere hope that every one of you get all the points for attendance and participation.
Reading. Read the book! You should prepare for class by looking over the sections we will cover. Your aim is not to understand every detail, but to get a sense of where we are headed. Even a few minutes of pre-reading can help with class time. Be forewarned that a college math class is different than a high school math class. Because of limited class time you will need to learn some material on your own. As such, after class, read the sections carefully again to fill in the gaps. Keep up with the reading: reading large sections right before an exam is less effective.
Homework. Homework will be assigned most days. The goal of the homework is to give you an opportunity to continuously engage directly with the material. Some of the homework questions are meant to be challenging and to stretch you; simply put, I believe that the homework is where you will do the vast majority of your learning in this class. Grapple with the questions; talk to classmates about solution strategies if you are feeling stuck; do the homework.
Each homework must be scanned and uploaded to Moodle. Instructions for scanning will be given to you.
Homework is due at the beginning of the next class after it was assigned, unless otherwise stated. In general, late work is not accepted. If there are special circumstances, talk to the instructor. To alleviate your anxiety from accidentally forgetting to submit homework before class, illness, emergencies, or other situations beyond your control, the lowest four (4) assignments will be dropped.
Because communicating results to others is an important skill, showing your work is as important as getting an answer. In many instances, credit will only be given if your work accompanies your answer. You are encouraged to collaborate, but what you turn in must be your own work. See "Learning integrity" and the collaboration policy below.
Projects. We will have a project on numerical methods of integration. This project will utilize Mathematica to help us solve more significant real world problems. It will require some writing as well. It is possible we may have several smaller project(s) later on in the term, as time allows. Late projects will receive a 25% deduction in points if turned in within 24 hours, 50% if turned in within 48 hours, and so on. Email the instructor within 2 hours of the original deadline to receive this consideration.
Exams. There are several in-class midterm exams (see calendar for a tentative schedule). Subsequent exams will mainly focus on the material covered since the previous exam, but can include previous material too. There will be a final exam during the official final exam period covering the entire course.
There are no make-up exams except in circumstances recognized by the instructor as beyond the control of the student. To receive this consideration, the instructor must be notified of the problem before the exam unless this is impossible, in which case as soon as possible.
Gateway exam. With the widespread use of calculators and software like Mathematica, an interesting phenomenon has been observed: students have shown increased proficiency using technology but, at the same time, have lost the ability to do routine problems by hand. At Bethel, we want students to understand the concepts, be able to work elementary problems by hand (manipulative skills), and also use technology to solve extended problems that we would not have considered doing by hand previously. The Math Department has decided that it is necessary for all Calculus 2 students to demonstrate a minimal level of proficiency in working standard integral problems by hand via our Gateway exam.
The Gateway exam covers methods of integration and will be given after these topics have been studied in Chapter 7. The exam consists of 6 integration problems. To pass, solve 5 of the 6 problems completely correctly (no partial credit is given).
See the calendar for the first in-class exam date. Students not passing the exam will have up to four (4) opportunities to retake similar forms of the exam by the completion date given on the calendar. A pass on the first or any subsequent retake attempts will result in full credit. Otherwise, no credit is given at all. More information regarding topics and expected skills for the Gateway exam will be provided as the exam draws nigh.
Time outside of class. I expect a typical student to spend about two to three hours outside of class for each hour in class. Some students need to spend a bit more than that (which is okay). If you are spending more than 12 hours per week on this course outside of class time, please come talk to me so we can find ways to help you learn the material without spending so much time.
Illness. You should make every effort to attend class when you are healthy. If you become ill, for your well-being, you should not come to class. Yes, this sounds like common sense, but it is tempting to try and power through as normal so as not to fall behind. If you become ill, or know that you will need to miss class for some reason, please contact me as soon as you are able, and we will work together to plan how you will keep up and/or make up any missed work.
Policies
Learning integrity.
Search me, O God, and know my heart;Collaborative work is an integral part of many successful ventures. As such, I expect that you should collaborate with your classmates a lot during your time in this course. However, it is important to understand that there is a big difference between thinking about and solving a problem as part of a group (which is good, both educationally and morally) and copying an answer or letting someone else copy your answer (which is bad, educationally and morally, and has punitive consequences).
Try me, and know my anxieties;
And see if there is any wicked way in me,
And lead me in the way everlasting.- Psalm 139:23–24 NKJV
In short, I trust you to maintain the utmost level of academic integrity in this course. Please do not break this trust; if you do, there will be repercussions. The formal policy below lays this out explicitly, and supplements Bethel's academic honesty policy.
Collaboration policy.
- You may collaborate on the homework assignments to the extent of formulating ideas as a group, but you may not collaborate in the actual writing of solutions (unless explicitly allowed in the instructions).
- In particular, you may not work from notes taken during collaborative sessions.
- You may not consult any materials from any previous offerings of this course or from any other similar course offered elsewhere unless explicitly permitted.
- You may not look up solutions in any form, including from solution manuals or online repositories.
- You are required to completely understand any solution that you submit and, in case of any doubt, you must be prepared to orally explain your solution to me. If you have submitted a solution that you cannot verbally explain to me, then you have violated this policy.
Accommodation policy. Bethel University is committed to accessibility for students with disabilities and the Office of Accessibility Resources and Services (OARS) is a resource to ensure students experience access. The instructor will provide accommodations after the student initiates the process.
- Students with a documented disability may contact OARS to learn more about how to register for accommodations. Reasonable accommodations are approved after an interactive process with the student and OARS.
- Students registered with OARS are responsible for logging in to their AIM Accessibility Accommodation portal (via MyBethel) each term to request their Faculty Notification Letter of Accommodations. Accommodations cannot be applied prior to the faculty’s receipt of the letter.
Concerns and appeals. If you have any concerns regarding the course, your grades, or the instructor, see the instructor first. If needed, see Bethel's academic appeals policy.
Getting Help
If you need help there are multitude of resources you can use:- Yourself. If you're stuck on a problem or struggling with a concept from class, take a break and think about something else (e.g., your Hebrew assignment, the economics of Star Trek) for a few hours and then try a fresh start.
- The book. Reread the sections we covered in class to fill in the gaps.
- Your classmates. You are each other's best resource: talking through the course material with someone else who is also trying to master it is a great way for you both to learn. (And don't discount the learning that you will do while trying to explain to a classmate an idea covered during class that you think you understand; I can't count the number of times that I've discovered that I didn't really understand something until I tried to teach it to someone.) The homework assignments are meant to challenge you, and figuring some of them out together is a great approach.
- Math Lab. The Math Department offers support for students enrolled
in math classes by providing a Math Lab.
Hours, as well as logistics for attending (in person or remotely) will be provided on Moodle.
If you are having any difficulty with your homework in this class,
please seek help from the tutors in Math Lab.
The Math Lab is not only a great place to get help from tutors,
but also is the perfect place to meet other students from class, do homework, and check your work.
Plan Math Lab hours into your weekly schedule and develop this habit early on in the course.
If you attend Math Lab at least once within the first two weeks it is open, you will receive an extra participation point. Be sure to sign-in and you must stay for at least 15 minutes. This is a one-time extra credit offer, not for each time you're there. The point is to get you there early in the semester so you discover it is helpful.
- The instructor. Come to my (remote) office hours or email to make an appointment. Please read and follow instructions.
- Supplemental resources.
- More video examples: mathispower4u
- If you find good resources, let me know and I can post them here for everyone.