TI - From concrete to abstract? Problem domain in the learning to introductory programming PY - 2011 AU - Oliveira, Osvaldo Luiz de AU - Monteiro, Ana Maria AU - Roman, Norton Trevisan T2 - Annual Conference on Innovation and Technology in Computer Science Education - ACM ITiCSE J2 - Proceedings UR - http://delivery.acm.org/10.1145/2000000/1999797/p173-oliveira.pdf?ip=143.107.59.122&acc=ACTIVE%20SERVICE&CFID=58807776&CFTOKEN=67208550&__acm__=1324377547_418cab9054c6485c0a327dcbfd8af72d PP - Alpha ER -