Dr Robert Winster: How children produce and aquire language

This video discusses how children acquire language, in the video it states that children use a different part of the brain to adults when acquiring language which explains why it is easier for children to learn a language than it is for adults to learn a new one. he explains why children are unable to vocalise words at a young age, this is due to the larynx being higher than an adults which means that they are able to breath and drink at the same time but cannot voice most sounds. this changes at around the age 1 and the larynx moves down around 1cm which uncovers the voice box therefore enabling the child to voice sounds and words.
As the video progresses we are introduced to a number of children, one being Moira who is 2 and a half years old, it is said in the video that on average she will learn 10 words a day. this backs the theory of vygotsky social interaction and nurture theory as she is picking up language due to interactions with other adults. also there is an argument for nature theory as  the video states that there are very little times that children get grammar wrong unless there is an exception to the rule for example 'runned' instead of ran.