Whole number arithmetic competency models and individual development

Title:: Whole number arithmetic competency models and individual development
Document type:: Buchbeitrag
Author(s):: Obersteiner, A.; Moll, G.; Reiss, K.; Pant, H. A.
Pages contribution:: 235-242
Editor:: X. Sun ; B. Kaur ; J. Novotna
Book title:: Proceedings of the 23rd ICMI Study Conference: Primary Mathematics Study on Whole Numbers
Publisher:: University of Macau
Publisher address:: Macao, China
Year:: 2015
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