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Liberman, Neomi; Beeri, Catriel; Kolikant, Yifat Ben-David – ACM Transactions on Computing Education, 2011
This article reports on difficulties related to the concepts of inheritance and polymorphism, expressed by a group of 22 in-service CS teachers with an experience with the procedural paradigm, as they coped with a course on OOP. Our findings are based on the analysis of tests, questionnaires that the teachers completed in the course, as well as on…
Descriptors: Programming, Teaching Methods, Computer Science Education, Questionnaires
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Paz, Tamar; Leron, Uri – Journal for Research in Mathematics Education, 2009
Functions are all around us, disguised as actions on concrete objects. Composition of functions, too, is all around us, because these actions can be performed in succession, the output of one serving as the input for the next. In terms of Gray and Tall's (2001) "embodied objects" or Lakoff and Nunez's (2000) "mathematical idea…
Descriptors: Concept Formation, Mathematics Instruction, Mathematical Concepts, Algebra
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Sajaniemi, J.; Ben-Ari, M.; Byckling, P.; Gerdt, P.; Kulikova, Y. – Computer Science Education, 2006
Roles can be assigned to occurrences of variables in programs according to a small number of stereotypical patterns of use. Studies on explicitly teaching roles to novices learning programming have shown that roles are an excellent pedagogical tool for clarifying the structure and meaning of programs and that their use improves students'…
Descriptors: Programming, Predictor Variables, Role Perception, Role Theory