The advantages of data flow diagrams for beginning programming
In this paper we describe DRLP (Dataflow Representation Language for Programming) a language that we have designed. DRLP is a concise and easy to use representation for novices learning programming. At the moment, DRLP is a visual isomorph of LISP. However we believe that some of ideas in DRLP could be extended to cover other languages. We describe an experiment that was conducted to determine whether DRLP has any effect on novices' programming performance. The results suggest that DRLP has advantages in that it avoids some of the obstacles of the LISP programming language but that many of the conceptual difficulties that students have are unaffected by the choice of a linear or graphical representation.
KeywordsOutput Node Input Node Intelligent Tutor System Data Flow Diagram Structure Editor
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