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050 0 0 _aQ181
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093 _aSC004
100 1 _aKoballa, Thomas R
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245 1 0 _aCases in middle and secondary science education : the promise and dilemmas /
_cThomas R Koballa, Deborah J. Tippins
250 _a2rd ed
260 _aUpper Saddle River, N.J. :
_bPearson/Merrill Prentice Hall,
_c2004
300 _a308 p :
_bill
650 0 _aScience
_xStudy and teaching (Middle school)
_xCase studies
_993067
650 0 _aScience
_xStudy and teaching (Secondary)
_xCase studies
_993068
700 1 _aTippins, Deborah J
_993069
942 _cGBE
999 _c62609
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