This document discusses language development and structure. It begins by outlining the learning objectives, which are to describe language structure and its flaws, identify stages of language development, and distinguish between Chomsky and Skinner's views of language development. It then defines key parts of language structure, such as phonemes, morphemes, grammar, and discusses Chomsky's views on surface structure and deep structure. The document also outlines flaws in language semantics, syntax, and developmental stages of language learning in children. It concludes by contrasting Chomsky and Skinner's theories of language development.