Please forward this error screen to 31. This article is classes on speech development in young children the acquisition of language by children.

For the development of languages for official or educational purposes, see language planning. This article needs additional citations for verification. Language development is a process starting early in human life. Infants start without knowing a language, yet by 10 months, babies can distinguish speech sounds and engage in babbling. Typically, children develop receptive language abilities before their verbal or expressive language develops. Receptive language is the internal processing and understanding of language.