00666nam a2200205Ia 450000100060000000300050000600500170001100800410002801000150006905000190008408200140010310000310011724500850014826000700023330000260030349000290032950400250035865000340038370000430041739864BIBL20160527200212.0730605s1973    inuc     b    00010 eng    a 73076473 0 aLB1028.3b.H39  a371.3/07810aHayden, Alice Hazel2Local10aSystematic thinking about educationcby Alice H. Hayden and Gerald M. Torkelson.0 a[Bloomington, Ind.bPhi Delta Kappa Educational Foundationc1973]  a34 p.bports.c18 cm. 0aPDK fastbacksv172Local  aBibliography: p. 34. 0aEducational technology2Local10aTorkelson, G. M.ejoint author.2Local