000 00493nam a2200133 4500
245 _aReview of research on behavioral objectives and learning hierarchies
_cby Henry H.Walbesser and Theodore A. E.isenberg
100 _aWalbesser,Henry H
710 _aTheodore ,A. Eisenberg
260 _aOhio,
_bERIC Information Analysis Center for Science,mathematics&Environmental Education
_c1972
300 _a78p.; 28cm
490 _aMathematics education reports
082 _a510.7
_bWAL
041 _aeng
999 _c58936
_d58936