Skip to content
Unit 3

Communication and Language Development

Topic 3.5 · 15 approved practice questions

Topic summary

What this topic is about

Tim describes language as a system for communication that develops from early sounds into words and increasingly complex speech. The review names the parts of language and gives examples of how children learn and sometimes overapply grammatical rules. The review places cooing, babbling, one-word speech, and two-word telegraphic phrases in approximate early developmental order.

Key ideas

  • The video distinguishes phonemes, morphemes, semantics, grammar, and syntax.
  • Language development is presented through early vocalizations, one-word speech, and later combinations of words.
  • Telegraphic speech uses short combinations that communicate a larger idea.
  • Overgeneralization occurs when a child applies a regular grammar rule to an irregular word.
  • The review describes interaction between biological readiness and experience in language development.

Common confusion

A phoneme is a speech sound; a morpheme is a smallest meaningful unit, such as a word part.

Review connection

Review this in the Unit 3 Review video, then try the Topic 3.5 Practice Quiz.

Reviewed by Tim Steadman