Course Syllabus

Course Name: Discrete Structures in Computer Science

Course Number: CS225_400

Term Offered: All Terms 

Credits: 4 

Instructor's Name: Samina Ehsan



Instructor Information:

Hello again! I’m Samina Ehsan, and I am the designer and instructor of CS-225_400: Discrete Structures in CS. This course deals with the mathematical and theoretical concepts that you will need in the later courses in this program. I hope you enjoy the course.  

My office hours are on Tuesdays 6:00 - 8:00 pm PST (by appointment)  and Sundays 9:00 -11:00 am PST (fixed)  via  Slack (Channel - #office_hours).



 Communication Policies:

  • Piazza is the best way to reach me for any course-related queries. We can refer back to our previous discussions here and also as it will be visible to the entire class. So, the other students will be able to get benefit from it.  Not all posts require a reply from me and often it is better for students to hash out an answer to a question. But please email me if you do not receive a reply within 12 hours.
  • Sending email  is the preferred way to only for matters of a personal nature related to the course (Please include the prefix CS225_400_S20 in the subject) or if you have not received a reply to your post on Piazza. Please resend the email if I do not respond within 24 hours. 
  • I can be reached via the class-specific Slack workspace during my office hours. For details on getting set up on Slack, please visit here. The actual Workspace you should sign into is This will log you into your OSU slack account, where the class workspace class-cs225-sp20 should be visible (it's available now!).


Course Guidelines+Syllabus, Weekly Schedule, and Syllabus Quiz:

  • The detailed guidelines+syllabus for this course are provided in the following document - 

      CS 225 Syllabus Spring 2020.pdf

  • The weekly schedule for this course is provided in the following document-

      CS 225-400_Abbreviated_Weekly_Schedule_Spring-2020.pdf

  • Students registered to this course must take a syllabus quiz by April 08, 2020. The syllabus quiz link for this course is provided as follows -Syllabus Quiz

Please use one of the following means to get help in this class -

  • Piazza:

Piazza is the best place to ask any course-related queries. Please post all course-related questions on Piazza so that the whole class may benefit from your conversation. This also means more people will be available to respond to your discussion posts. Moreover, when you respond to posts, you'll be helping out more people. 

  • Office Hours:

You can ask questions to the instructor or teaching assistants(TAs) during their weekly office hours. Don't waste your time if you are not understanding a concept, rather ask the instructor or TAs for help. Please find the office hours and contact information provided as below-

Instructor's Office Hours and Contact Information:

The instructor's office hours are on Tuesdays 6:00 - 8:00 pm PST (By Appointment)  and Sundays 9:00 -11:00 am PST  (Fixed) via Slack (Channel - #office_hours).

Instructor email:  

Class slack workspace: class-cs225-sp20

TA Office Hours and Contact Information:

The Teaching Assistants will hold fixed weekly office hours starting from week 2. Office hours are held via Slack (Channel - #office_hours).


  • Tutors:

Please follow the tutoring information below if you need any course onboarding support from the peer or ecampus tutors -

1. CS peer tutoring: Tutoring_annoucement.pdf

2. Online tutoring: 


You must complete the following introductory tasks by April 08, 2020 - 

  1.  Introduce yourself on Piazza.
  2.  Read the syllabus and weekly schedule documents thoroughly. Mark your calendar with the due dates.
  3. Take the syllabus quiz.  You will find the quiz here - Syllabus Quiz.
  4.  Review the CIE Topics


Return to Modules

Course Summary:

Date Details Due