Key points are not available for this paper at this time.
†This paper is a translation of ‘Kernkonzepte des Schullernens’, Zeitschrift fur Entwicklungspsychologie und Padagogische Psychologie, Vol. 9, No. 3 (July, 1977). It is published here with the permission of Verlag fur Psychologie, Dr C. J. Hogrefe. The authors assume joint and equal responsibility for this work. David E. Wiley is also affiliated with the University of Chicago.
Harnischfeger et al. (Sat,) studied this question.
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