MAT 220 Differential Equations, Fall 2021, MWF 11:00-11:50 am, Noyce 2243


Professor: Jeff Blanchard, Noyce 2516, 269-3304, blanchaj (at)

Text: Elementary Differential Equations and Boundary Value Problems, 10th Edition by Boyce and DiPrima. It is important and expected that you read the text, especially the examples.

Office Hours:
Monday through Friday: 10:00-10:50
By appointment; please email me to set up a time.

Learning Goals:

The course content is clearly a critical component of Differential Equations. The course also has supplementary learning goals regarding problem solving skills, interacting with technical and quantitative material, and working with peers. The learning goals for this course are:


This class will meet approximately three hours per week. To accomplish the course learning goals students should expect to spend at least nine additional hours per week completing assignments and studying course material.


A significant course goal is developing the skills to work in a group toward a mutual comprehension of the material. Students will be randomly assigned a weekly partner. You and your partner will occasionally work to answer a question during class meetings. Most importantly, you and your partner will work together on daily homework assignments. Weekly seating assignments can be found here.


It is critical to your learning, the learning of your peers in class, and the overall experience of everyone that we are engaged with the course. Participation will be a portion of the course grade. You will demonstrate active participation by attending and participating in the class meeting, meeting with and studying with your weekly partner, attending office hours, completing assignments, etc.


Instructions for Preparing and Submitting Homework:

The homework must be legible and organized to be graded. Follow these guidelines:

The homework is due at the beginning of class on the due date: 11:00 am (US Central Time).

Midterm Exams:

There will be two in-class, midterm exams tentatively scheduled for These midterm exams will test the material covered since the previous exam.

Final Exam:

The final exam is scheduled for Tuesday, December 14, 9:00am - 12:00pm. The final exam is three hours and will be comprehensive.
Course Grade:
Participation: 5%
Partner Work: 15%
Individual Work: 10%
Midterm Exams: 40% (20% each)
Final Exam: 30%

Academic Honesty:

All students must be aware of and comply with the Grinnell College Academic Honesty policy.

In this course students are expected to collaborate on the partner homework (PW) assignments.

Students should not collaborate on individual homework (IW) assignments.

Any resource (other textbooks or online) must be cited.

It is expressly forbidden to look for solutions online, in textbooks, solution manuals, or from other students.
It is also an academic honesty violation to solicit assistance from any online other forum.

All midterm exams and the final exam are in-class, individual endeavors during which the student may not consult any other person or resource not provided with the exam or explicity permitted in the written instructions on the exam.


Grinnell College makes reasonable accommodations for students with documented disabilities. Students need to provide documentation to the Coordinator for Disability Resources, located on the ground level floor of​ Steiner Hall (641-269-3124) and discuss your needs with them. Students should then notify me within the first few days of classes so that we can discuss ways to ensure your full participation in the course and coordinate your accommodations.

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