The document summarizes key concepts in applied linguistics, including motivation and competence vs. performance.
It defines motivation as the reasons for people's actions and desires, noting two main types - instrumental motivation which is learning a language for practical reasons like a job, and integrative motivation which is learning to understand and interact with the language's culture and speakers.
It then explains the difference between linguistic competence, which is a speaker's underlying grammatical knowledge, and performance, which is the actual real-world use of language that can be impacted by errors or limitations unlike idealized competence. Competence represents the mental rules while performance is observable language production and comprehension.