What does SLA refer to in terms of language learning?

Second Language Acquisition (SLA) refers to the process by which individuals learn a language that is not their native language. This concept encompasses various theories and methods concerning how learners acquire the skills necessary to communicate effectively in a second language. SLA examines the psychological, social, and cognitive factors that influence the learning process, as well as the contexts in which learning occurs.

Understanding SLA is crucial for educators and language instructors as it provides insights into how students absorb and use a second language, which can inform lesson planning, instructional strategies, and assessment methods. It also touches upon concepts such as the influence of age on language learning, the role of motivation, and the impact of learning environments.

The other choices do not accurately reflect the established terminology in the field of language education. Simple Language Application, Standardized Language Assessment, and Systematic Language Approach are not recognized concepts specifically associated with the process of learning a second language like SLA is.