This study investigated university students’ perspectives on good class and instructional practices through social network analysis. The subjects were 321 students in the third and fourth academic years in a Korean university. The subjects completed four open-ended questions, asking about experience of good class, good instructors’ teaching practice, and their feelings and attitudes when participating in good class. As social network analysis, KrKwic (Korea Key Words in Context) was used to compute word frequencies and analyze semantic network structures and Ucinet Netdraw to assess centrality in the social network, consisting of degree centrality, closeness centrality, and between centrality. The results are as follows. First, students showed 5 keywords to depict what good class is, including ‘understanding’, ‘example’, ‘video’, ‘interest’, and ‘communication’. Second, the characteristics of teaching methods by professors who practice good class indicate ‘assignments’, ‘questions’, ‘understanding’, ‘example’, and ‘feedback’. Third, the top 5 keywords of students’ attitudes as participating in good class are ‘active’, ‘participation’, ‘focus’, ‘listening’, and ‘asking’. Last, keywords depicting desirable class that students most wanted to take next time are ‘assignments’, ‘rewards’, ‘understanding’, ‘difficulty’, and ‘interest’. The findings from this study include the meanings of the semantic network structures of words in the text making up messages. Also this study can provide empirical evidence for educators and educational practitioners in higher education to create effective learning environments.