Teaching Philosophy

“The secret of life, though, is to fall seven times and to get up eight times.”
— Paulo Coelho
Students learn best when failure feels safe.

I was ten when I first started teaching division to my brother, but he decided, almost immediately, that he couldn’t. I did not have a name for it then, but I watched math anxiety close a door for him. Since then, in every class I teach, I have made it my job to keep that door open.

That experience showed me how important it is to have a space where mistakes are embraced as part of learning, and my teaching philosophy has been built around it. Over time, and through the experiences I have gathered, my goal has come to rest on one idea: students learn best when failure feels safe. Failure feels safe when the room is built for it. This is the room I did not know how to build for my brother at ten, and it is the room I build now, every semester, for someone else’s brother.

1

Meeting students where they are

At Michigan State University, I have taught a range of courses, from gateway courses to advanced ones, both in person and online, as the instructor of record and as a recitation instructor. This experience led me to develop a strategy for understanding the dynamics of each class, which I call “the spectrum of courses.” I place each course and its students along a line: at one end, students with low confidence or negative prior experiences with math; at the other, students with strong foundations. Each class falls somewhere in between. These are by no means strict divisions, just definitions that help me understand the class.

Students with low confidence or negative experiences often think mathematics has nothing to do with real life, so they give up before they even start. To prevent this, I modify my course content to include at least one real-world application for each concept. For instance, in Quantitative Literacy, I created a probability-focused assignment in which students used real U.S. wage data and Lansing rental prices to determine which apartment they could actually afford on their income. After that assignment, more students came to my office hours, and I saw them actively debating budget constraints. They learned probability along the way without even realizing it.

In contrast, students with strong foundations bring different challenges, such as rigid habits that require a customized approach. In my Introduction to Proofs class, I saw students clinging to habits without realizing it. It is instinctive to reach for what has worked in the past, but learning something new requires flexibility. As a result, their proofs started to look like either overstuffed suitcases or thin sketches that left most of the information out. To address this, I had them write step-by-step instructions for making a PB&J sandwich, then watch the famous TikTok video showing how both poorly written and overly detailed instructions lead to a mess. Afterward, their proofs grew sharper and more creative, and the exercise gave them room to slow down and think.

2

The first day matters

Understanding what students need begins before the first session. I start every course with a short pre-survey built around two questions: “What are your best and worst experiences with math?” and “What is your best way of learning?” This helps me adjust my teaching to fit the group. On the first day of class, I begin with a short presentation about myself, sharing that I, too, have interests beyond mathematics. This loosens the atmosphere before the icebreaker, which then gives students a chance to get to know each other. I also remind them to swap phone numbers so they can work together after class.

Because of these steps, students who came to class anxious or with negative experiences settled in more quickly, and discussion grew across the class. Students even visited my office hours in groups, a sign that swapping numbers had worked.

3

Building groups that work

Working in groups is one of the best ways to learn and to make mistakes. In in-person classes, large groups usually form naturally; I once watched eight students pile together in a calculus class, and it slowly became a social gathering. So now I form groups on the first day with a small activity: each student picks one of four colors, then forms a group of three or four, with the rule that no color can repeat within a group. For online classes, I do the same through a poll.

Since online students can be distracted easily, I step in and build balanced groups myself when needed. Each breakout room usually has at least one person comfortable taking the initiative, and I ask everyone to keep their cameras on and use a shared Microsoft Whiteboard to keep the energy up. I have seen introverted students take active roles, and the discussions draw everyone in. Most of the time, groups divide the work so that everyone stays engaged; even on the whiteboard, they help each other by typing out their thinking.

4

Small check-ins

All my classes, online or in person, end with a minute paper: “What did you learn today?”, “What needs clarifying?”, and so on. At the end of each week, I ask broader questions about recurring mistakes on quizzes and exams. I use these responses to identify where the class is and to address any confusion. My notes for the next day change every time, depending on what students ask me to revisit, and once I understand the source of their confusion, I reteach the concept from a different angle.

I also arrive fifteen minutes before class and stay until the last student has left. This habit gives me time for small conversations with my students, some completely outside mathematics. It also helps me catch quiet warning signs, such as missed classes or assignments. Once, a well-performing student began submitting incomplete quizzes; after I reached out, I learned she was a single parent juggling far more than my course.

5

Mistakes, made on purpose

In my classes, students can resubmit quiz and homework problems for partial credit, but only if they explain what went wrong and submit corrected work. This policy encourages them to make mistakes without worrying about grades. As a result, their work improved dramatically, because redoing it forces them to address the underlying issue.

I do the same on my end by making mistakes publicly. For instance, I deliberately tangle necessary and sufficient conditions, then untangle them out loud with “I am an animal” versus “I am a cat” until the logic is straight. I also stop halfway through a computation and ask the class to finish it, so that being unsure and being wrong feel like ordinary parts of doing mathematics, for me as much as for them. As a result, students are less anxious and join the discussion without worrying about being correct.

6

Looking ahead

Across all my courses, whether helping anxious students in Quantitative Literacy build confidence through real-world applications or guiding students through the rigorous logic of proof writing, my goal remains the same: to cultivate spaces where failure is safe and learning is collaborative. Teaching across this wide spectrum has reinforced that effective instruction requires constant reflection and adaptation. Moving forward, I am eager to expand my practice by engaging in departmental course design, incorporating new collaborative learning tools, and taking part in continuous pedagogical development.

Student Voices

Selected open-ended comments from Student Perceptions of Learning Surveys, quoted verbatim.

MTH 103A – College Algebra A

When I was struggling, Professor Shashini Marasinghe would always be there to help. And she encouraged us to go to office hours as well as tutoring if we needed extra help.
If I ever had a question, the teacher was motivated to ensure that I'd understand whatever was bugging me.
It supported my learning with the professor and the ULA following up and walking around class, making it easy to ask personal questions to not disrupt the lecture.
Overall, I thought both the teacher and the teaching assistant did a great job!

MTH 299 – Introduction to Proofs

One of the main ways this course supported my learning was by allowing us to redo our work, which encouraged us to learn from our mistakes rather than be penalized for them. I also think the way the course was structured having us watch videos before class, helped reinforce the material and kept us prepared.
We had portfolios due every week that helped to show what we learned. These portfolios helped to deepen my understanding of the material.
Quick responses to emails, efficient feedback, and availability helped me
she was very understanding and always answered my questions

MTH 101 – Quantitative Literacy 1

This course did support my learning. The organization of the class through D2L made it very easy to understand want was expected of me which ultimately helped my learning. The assignments were also listed out step-by-step which helped me learn because I knew exactly what to do which deterred confusion.
Videos helped support my learning by thoroughly explaining key topics.
I learned things that I can apply to my life.