Well-defined and ill-defined initial state and goal state of tasks and their effect on task difficulty

Lehner, M. C.; Reiss, K.

Title:: Well-defined and ill-defined initial state and goal state of tasks and their effect on task difficulty
Document type:: Buchbeitrag
Author(s):: Lehner, M. C.; Reiss, K.
Pages contribution:: Bd. 5, S. 102
Editor:: E. Bergqvist, M. Osterholm, C. Granberg & L. Sumpter
Book title:: Proceedings of the 42nd Conference of the International Group for the Psychology of Mathematics Education
Publisher:: PME
Publisher address:: Umeå, Schweden
Year:: 2018
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