GSI stands for Graduate Student Instructor. Unlike Teaching Assistants (TAs), GSIs are graduate students who teach classes, and they are commonly found in universities across the United States. The Department of Physics was the first science department in Japan to introduce the GSI system.
Physics is not just a subject to be memorized—it is a discipline that helps us understand the fundamental principles of the natural world. True understanding comes when students can apply basic laws and concepts to different problems. To achieve this, practice is essential. In the Department of Physics, exercises are provided in key subjects such as mechanics, thermodynamics, electromagnetism, quantum mechanics, and statistical mechanics—areas where students often struggle. These exercises are supported by GSIs, who play a crucial role in helping students grasp difficult concepts.
Undergraduate students appreciate the GSI system, saying, “It’s easier to ask questions than to faculty members,” “They understand what is difficult for us,” and “Since they are our seniors, they give us a goal to strive for.” Graduate students who serve as GSIs also benefit, noting, “I feel like my ability to explain concepts has improved” and “I can earn enough to help cover my tuition.”
The GSI system not only enhances students’ understanding of physics but also fosters personal and professional growth for both undergraduates and graduate instructors.
