Total students taught: 480
MIS 892 Special Topics in Information Systems: Blockchain Module, Graduate PhD
George Mason University, Costello College of Business - Spring 2025
This course focuses on contemporary topics in information systems and helps guide researchers toward the discovery of new research questions, topics, and methodologies. PhD students will read, process, and discuss recent papers related to blockchain technology, the economics of cryptocurrency topics, and decentralized organizing. The exposure to classic economics and IS papers will help them to learn research methodologies that will help them understand the cryptocurrency market and blockchain tradeoffs and be useful in their current and future research. The class emphasis is on deep comprehension of theories and discussion for idea generation.
Student Testimonials
Student Case 1
Student 1 has applied the transaction cost economics (TCE) theory in their course project after reading and discussing the assigned papers by Halaburda et al. (2023) and Williamson (1991).
GBUS 738 Data Mining for Business Analytics, Graduate
George Mason University, Costello College of Business - 2025 - Current
This course focuses on analytical decision-making in uncertain and complex management scenarios using data mining and information systems. Students will learn to preprocess datasets, apply supervised and unsupervised learning methods for pattern extraction, and evaluate algorithmic results to propose actionable business solutions. Practical applications will emphasize the steps from goal definition to model deployment in real-world contexts.
Student Testimonials
Student 12
She has amazing knowledge and i loved her style of teaching. would definitely recommend students.
Student 11
Professor Petryk was always open to student feedback and made sure our concerns were heard. When we found certain R
concepts challenging, she provided extra resources and explanations to help us understand better.
Student 10
Professor Petryk created a welcoming and engaging class by encouraging discussions, hands–on exercises, and interactive code
reviews. These activities made it easier to understand the course concepts and learn from each other.
Student 9
Professor Petryk did a great job creating an engaging learning environment by making class discussions interactive and
encouraging participation. The hands–on coding exercises and the live code reviews made it easier to understand complex topics.
Student 8
Professor Petryk always made sure doubts were answered properly and even encouraged me to learn beyond the scope of the
course. The different kinds of learning made me understand that I still need a lot of improvement in learning these concepts but
could cope up easily with them after reflection which makes the course great overall.
Student 7
Professor Petryk demonstrated a strong commitment to our feedback by actively listening to our concerns and making adjustments
to improve the learning experience. For example, she provided clarifications and additional guidance when we faced challenges
with data preprocessing and model selection, ensuring we stayed on track.
Student 6
Professor Petryk designed the course to make it very engaging and interesting. Although there were all kinds of students with
various backgrounds, the course structure and content helped everyone and the classes were real fun!
Student 5
Dr. Petryk created a phenomenal environment where everyone felt comfortable. She ensured that all learning methods were used to
include visual, auditory, and hands on so that all students had a learning method that would work for them.
Student 4
Professor Petryk created a highly engaging and inclusive learning environment by encouraging interactive discussions, hands–on
exercises, and real–time code reviews that enhanced our understanding of course concepts. The structured approach, combined
with insightful feedback, allowed us to apply machine learning techniques effectively and collaborate better with classmates,
making the learning experience both practical and enriching.
Student 3
Dr. Petryk had so many activities for her students to be engaged. She was always creating ways for students to interact with one
another and to interact with her. That's hard to do in an online course but she did an amazing job.
Student 2
I think the way the course is designed is very good.
The amount of engaging content and various ways to make us understand the concepts is very helpful. The limited time available in
the class was efficiently used to guide the students to learn the concepts and apply them in appropriate way.
Student 1
Taking GBUS738 DL1 with Professor Petryk was an incredibly rewarding experience. The interactive nature of the class encouraged equal participation, making learning enjoyable and engaging. I especially appreciated the class quizzes, which were not only fun but also reinforced key concepts effectively. I gained valuable knowledge about data mining techniques, both supervised and unsupervised, which enhanced my analytical skills. Professor Petryk’s teaching style made complex topics accessible and insightful. Thank you for an amazing experience!
MIS 303 Intro to Business Information Systems, Undergraduate
George Mason University, Costello College of Business - 2022 - Current
This course teaches students to think digitally in business: How do firms do business in a digital age? Why do businesses utilize data? What data can strengthen the competitive advantages of firms? What technology do they need to store, process, and analyze data to extract meaningful insights? Using real-world examples, I aim to show the importance of digital literacy for organizations and professionals. Students gain exposure to analytical and database management tools in the process.
Student Testimonials
Student 21
Dr. Petryk, I wanted to thank you for the support and guidance you gave me this semester. Your help made a huge difference in turning my grade around, and I truly appreciate the time and effort you invested in helping me succeed. I learned so much from being a student in your class, and I will carry it forward to my future endeavors. I’m incredibly grateful for your kindness and dedication. Thank you again!
Student 20
Thank you for a great MIS course this year Dr. Petryk! Hope to see you around campus next year.
Student 19
Thank you again for a wonderful semester, you left me with a much better understanding of management information systems overall and taught the class in a way that really worked for me and I'm sure the majority of the class.
Student 18
I wanted to thank you for an amazing semester. I really enjoyed your class, and thank you for always being kind, understanding, and helpful!
Student 17
I appreciate your drive to receive feedback, it expresses your desire to teach effectively and improve your own skills. Additionally, I appreciate that all of our homework has been highly relevant to our topics and exams. I feel that many professors would be inclined to assign "busywork" in this class, as it has been rather light in terms of homework.
Student 16
Thank you for how clear you are.
Student 15
The professor's energy made the class fun.
Student 14
I enjoyed the actual enthusiasm for the course it didn't feel like this was just a paycheck and it helped the engagement.
Student 13
Moreover, I wanted to express my gratitude for your guidance and support throughout this semester. The knowledge you shared, especially on SQL, has been invaluable. I've already applied what I learned in my current internship, which has made a significant difference.
Thank you once again for your dedication to teaching and for your mentorship. I am looking forward to staying in touch and, hopefully, crossing paths again in the future.
Student 12
I also wanted to take the chance to thank you for orchestrating an informative and professional course this semester. I have gained a lot of skills that I can directly apply in my Accounting Assistant role at FCPS under your instruction. Some of the excel skills we learned especially have helped me in my daily routine. I truly appreciate it!
Student 11
I also just wanted to say thank you for the semester, your very organized and straightforward approach to teaching was very appreciated and made this class easy to follow and I knew every week what was expected of me. And thank you for being so understanding and flexible throughout the semester as well. I wish you well and have a great summer professor!
Student 10
I expected to continue learning about mostly computer applications like excel and access. I'm glad we started the course the way we did by learning terms and models first, so we had an informational background that pertains to what we are learning in the applications.
Student 9
When I signed up for this class, I was told by a friend that it is a computer heavy class. What I was expecting from day one was to be working with programs. Overall, so far I like the way the class has been taught.
Student 8
The course organization is well laid out and easy to understand/follow. The provided topics were interesting to learn about and I felt engaged in the class.
Student 7
The straightforwardness and simplicity of the structure of this course have brought some comfort. I think the instructor has done a great job making the blackboard easy to navigate and making expectations very very clear, something lots of professors don't do.
Student 6
I believe that the course organization is good the way it is. I think that the information and topics we learned/discussed in class are pretty straightforward, I did not expect to listen to anything else.
Student 5
The course is organized well, with deadlines clear.
Student 4
The content provided is what I expected to learn from the description of the class.
Student 3
I was not sure what to expect in this class, but I can say that I am very satisfied with the detailization of the course content!
Student 2
The course organization is well laid out and easy to understand/follow. The provided topics were interesting to learn about and I felt engaged in the class.
Student 1
Content delivery style is good. I like how we go over assignments in class together.
ISM 4113 Business Systems Design and Applications, Undergraduate
University of Florida, Warrington College of Business - 2020-2021
The major goal of this course is to learn the basics of systems analysis and design. Modern businesses need information systems to support their business processes. Whether one opts for custom application development or off-the-shelf information systems, it is important to understand the particular needs of a business to deliver a solution tailored to its requirements. The specification of rite in business information needs is a non-trivial and complex task and is hardly an exact science. Fortunately, several tools exist that can guide the modern systems analyst in this job.
Student Testimonials
#7
Dr. Petryk was very passionate about the course and was energetic in class. I enjoyed coming to class in the mornings because she showed passion for the material.
#6
Professor Mariia was great at giving us ample amounts of information and allowing us to work in groups for assignments so we could better understand the course content.
#5
Professor Petryk’s expertise in the subject matter helped me understand the material, as she explained all the concepts in a way that I could understand. She also provided a good mix of lectures, reading assignments, and group projects, so I felt as if I learned the material through many different mediums throughout the course. She also engaged students every class, so we got a sense of participation and collaboration which can sometimes be difficult with an online class.
#4
Professor Petryk does a good job of facilitating conversation with students throughout class.
#3
Great explainer, genuinely cared about students understanding the material, responded quickly, and met with me throughout the semester for the course.
#2
Well organized and made sure to engage the students, both via Zoom and in person, by asking questions that were easy enough that students wanted to participate while also engaging in further conversation about the topic.
#1
Great explainer, genuinely cared about students understanding the material, responded quickly, and met with me throughout the semester for the course.
GMU ASSIP Student Mentorship, Jun 2023-current
Working with students on data-analytics-intensive research projects & Mentoring students' research & Writing college recommendation letters
I'm incredibly proud of the number of students who reach out to me, sometimes years after graduation, to share an article, meme, or social media post that reminded them of something we covered in class. It’s always so rewarding to see that the ideas we discussed stayed with them and found relevance in their lives long after they left my classroom.