Parents hold the key to preventing speech delay. Anne Wiltsher reports on what childcare professionals are doing to empower them Toddlers' speech mistakes make us laugh - and nursery teacher Esther Thomas' recollections of her daughter's early efforts are certainly hilarious. 'Resipippies' were Ricekrispies, 'cray-boop' was playgroup and lippies were slippers. Big Ben was, more sensibly, 'Big Bong'. 'Appydong' was harder to interpret. But Esther got to the bottom of it. 'I had often responded to demands for jam by...