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1. Introduction While the pedagogy of foreign language teaching (second language teaching) is concerned with the various approaches, methods, and techniques of how a second/foreign language is taught, the field of Second Language Acquisition (SLA) is concerned with how a second/foreign language (L2) is actually learned. Other terms are also used to refer to the same phenomenon, including L2 acquisition, second language development (L2 development), and L2 learning. SLA focuses on the development of the learner's language, whether in a f…

The term ‘language impairment’ covers a wide array of language disorders that affect language abilities, including hearing, speaking, signing, reading, and writing across all levels of language structures and functions as well as processes of language comprehension and production. The field dedicated to the study of language impairments is called language pathology. 1. Classification and causes Language impairments can generally be classified into two main categories: acquired and developmental disorders. Acquired language impairments result from a variety of cause…