TY - ADVS ED - British Broadcasting Corporation. TI - Open classroom PY - 1971/// CY - Milton Keynes PB - Open University KW - Open plan schools N1 - This film studies the'open classroom' at elemntary and primary schools in United States and England; note: 4p; Converted into VHS 1/2 in. U-matic 3/4 in; Narrator : John Raynor ER -