A four-part series which looks at children from birth to school age. 2: Babies are born desperate to communicate
. They already recognize their mother's voice and within a very short space of time have learned the rules of conversation. By the time they are five they have sorted out the grammar of their mothertongue and may even have mastered a second language. Connie St Louis explores this development by talking to children from birth to five years.
Producer Julia Durbin. E-MAIL: thinking.allowed@bbc.co.uk (R)