The rules of language governing the sounds used to make syllables and words

The study of the meaning system of a language

The sharing of experiences with others

The brain's central function that allocates and coordinates mental resources

Events which are not the same each time, but relatively familiar

An approach to the study of language variation and adaptation which considers the ways social constructs impact upon language and which makes use of observation of natural conversations

The intersection of language and social behaviors observed during peer interations; the verbal and nonverbal behaviors children display as they approach peers, maintain conversations, and resolve conflicts during peer interaction

Linking the amount of support provided to the child's abilities; treating the child as a conversational partner

The way in which humans organize and make sense of information in the environment

Prefabricated units involving established verbal and nonverbal exchanges through which children conceive of and participate in repeated events

Changes the part of speech of a free morpheme

The inner knowledge one has of language and all of its linguistic rules and structures

Child uses eye contact, gesture, etc. to help in getting an object or accomplishing a task

Ability to realize and understand that people have thoughts, beliefs, and feelings, and that these may or may not be the same as one's own

Our understanding of the way an event is organized

A variety of language that is shared by a particular speech community

This method makes it possible to compare a group of related languages and reconstruct a parent language

A shared focus between a child and another person

Classic test of theory of mind

The use of a finite set of elements, in various rearrangements, to convey an infinite set of messages

The ability to represent ideas, events, and objects symbolically

Shorter utterances, fewer complex sentences, exaggerated prosodic features, fewer corrections of child's syntactic errors, topics drawn from current context.. etc.