MTTC Early Childhood General And Special Education (Birth–K) (134) Practice Test

At around six months, babies move from simple coos toward more intentional vocal play and early speech sounds. A clear sign of progress in expressive language is when the infant’s vocalizations are echoed back by a caregiver, leading the infant to repeat a syllable. This back-and-forth imitation shows the baby is practicing sound production and building the rhythm and flow of language, which are core parts of expressive language development and social communication at this age. Staring silently, crying without vocalization, or relying only on gestures do not demonstrate this early vocal progression. They reflect nonvocal or non expressive means of communication, whereas repeating a syllable back indicates the infant is engaging in vocal practice and turn-taking that lays the groundwork for speaking.