I've been reading some stuff all about the fact disadvantaged children are significantly held back in education because their language skills are limited. Even when they learn to read thier comprehension is very poor. They can't effectively use language as a tool for learning or thinking. There is also that famous study comparing the number of words heard by children from different home backgrounds which highlighted the need for children be spoken to lots.
I then went to visit a prospective reception class for my ds (who's own speech is a little slow in coming.) The reception classroom was very noisy as the children beavered away 'learning through play'. It struck me that in this child led environment, enphasising doing, there was far too little time in which a child could hear good language modelled by the teacher, despite this being so crucial for the developement of the most vulnerable, as they won't get it at home. Surely these children need LOTS and LOTS of chances to hear language to make up for the shortfall elsewhere but to achieve this would require much more teacher talk than child centered environments allow. Of course I'm not against play for 4 yr olds - I just wonder if the balance is wrong.