Hi, welcome to silkysteps
Activites and play enable speech, language and communication to happen whilst everyone is engaged in things they enjoy or find an interest in, making the act of communication more natural, flowing and relevant to what's being done or looked at. Children have oppotunities for negotiation when in play with others and where they are motivated to explore questions can be asked and findings can be clarified ..
This page of
Dorset for you is good reading
The page refers to 'Curriculum guidance for the Foundation Stage 2000' which is what England's eyfs replaced in September 2008
Enjoy the site xx
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Supporting silkysteps
For a list of level 3 diploma learner handbooks on amazon.co.uk