The document outlines the typical stages of language development in children from birth to 3 years old. It describes how in the first 3 months infants will awaken to loud sounds and turn to speech but only cry or gurgle. Between 4-12 months children begin to respond to different tones of voice and imitate sounds while using 1-2 words. During 12-24 months, children can point to body parts and put two words together. By 24-36 months, children can follow two-part requests and direct attention by naming objects.