Lady Plowden, who has died aged 90, enjoyed her highest public profile during the years in which she chaired the Independent Broadcasting Authority, between 1975 and 1980. But her most seminal influence on British life was in the 1960s, as chairman of a national committee on primary education, which endorsed and symbolised a progressive educational philosophy. Quoted from https://www.theguardian.com/news/2000/oct/03/guardianobituaries.education