Language acquisition, maintenance and attrition.
Second and third language acquisition (specifically, L1 role in SLA and L1 & L2 roles in TLA).
Foreign language pedagogy.
Sociocultural theory and SLA.
Qualitative research.
Multiculturalism and multicultural education (specifically, minority groups in Japan, with focus on Chinese and Brazilians).
(Subject of research)
Bilingualism and bilingual education
Foreign language pedagogy
Language loss and maintenance
Language transfer
Minority and Multicultural education
Qualitative research
Second and third language
(Proposed theme of joint or funded research)
Heritage language education, bilingualism, translanguaging, sociocultural theory, critical applied linguistics