Complex sentence: Proponents say that teaching sign language to infants improves communication skills between the child, parent, and other caregivers and that infants quickly learn to match an item with a certain gesture, thus communicating what they are truly thinking, feeling, and needing.
Split into simpler sentences: Proponents say that teaching sign language to infants improves communication skills between the child, parent, and other caregivers. Infants also quickly learn to match an item with a certain gesture, thus communicating what they are truly thinking, feeling, and needing.