Child Language Development
| Approximate Age | Expressive Language | Auditory Comprehension |
| 2 to 4 months | Verbal play through cooing, gooing and laughing. Vowel sounds heard such as ooohh, eee, and ahhh. | Turns head toward sounds and can begin to discriminate one sound from another. |
| 4 to 8 months | Babbling begins. Some Consonant sounds can be heard. | Anticipates an event (e.g. peek-a-boo) and follows a line of regard (e.g. visually follows toy moving across floor) as well as joint attention (i.e. is capable of visually attending to object with caregiver). |
