computer software, phonograph records, pre-recorded audio cassette tapes, eyeglasses, sunglasses, radios, cameras, electronic calculators, magnets, graduated rulers and photographic slide transparencies all assembled to relate stories to children

'assembl':25 'audio':8 'calcul':16 'camera':14 'cassett':9 'children':30 'comput':1 'electron':15 'eyeglass':11 'graduat':18 'magnet':17 'phonograph':3 'photograph':21 'pre':6 'pre-record':5 'radio':13 'record':4,7 'relat':27 'ruler':19 'slide':22 'softwar':2 'stori':28 'sunglass':12 'tape':10 'transpar':23

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