Hiroko Sugawara specializes in teaching Japanese as a foreign language based on the communicative approach. She is also interested in computer assisted language learning and plans to create useful online learning resources for students of the Japanese language.
- Aozora -Intermediate Advanced Japanese Communication (co-authored with Noriko Fujii). University of Hawaii Press, June 2003.
- First Year Japanese (Japanese 1-2-3)
- Second Year Japanese (Japanese 4-5-6)