Second language acquisition--ResearchCoupled problems (Complex systems)Applied linguisticsEducationEnglish language--Study and teaching--Foreign speakersLinguistics
French language--Study and teaching--Foreign speakersAdult education--Psychological aspectsTeacher-student relationshipsEducationEnglish language--Study and teaching--Foreign speakers
Language and languages--Study and teachingSecond language acquisition--ResearchLearning strategiesSecond language acquisition--MethodologyEducationEnglish language--Study and teaching--Foreign speakers
Language and languages--Ability testing--ResearchEducational tests and measurements--ResearchEnglish language--Study and teaching (Elementary)EducationEnglish language--Study and teaching--Foreign speakers
Chinese language--Study and teachingNative language and educationKorean language--Study and teachingJapanese language--Study and teachingHeritage language speakersEducation
English language--Discourse analysisClassroom environmentEducation, Bilingual--ResearchEducationEnglish language--Study and teaching--Foreign speakersEducation, Bilingual
Spanish language--Social aspectsHispanic Americans--LanguageHispanic Americans--Social life and customsEducationEnglish language--Study and teaching--Foreign speakersHispanic Americans