Implementing a Reverse Debugger for Logo

Programming is a creative activity that teaches precision. In Logo, novices write simple programs that draw geometric shapes onto a screen. Logical flaws, however, cause unintended results and pose a major challenge for young programmers who yet need to learn how to search for errors in their code....

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Bibliographic Details
Published inInformatics in Schools. New Ideas in School Informatics pp. 107 - 119
Main Authors Menta, Renato, Pedrocchi, Serena, Staub, Jacqueline, Weibel, Dominic
Format Book Chapter
LanguageEnglish
Published Cham Springer International Publishing
SeriesLecture Notes in Computer Science
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Summary:Programming is a creative activity that teaches precision. In Logo, novices write simple programs that draw geometric shapes onto a screen. Logical flaws, however, cause unintended results and pose a major challenge for young programmers who yet need to learn how to search for errors in their code. We discuss the problems novices face when learning to program in Logo. Furthermore, we present a reverse debugger for Logo that enables programmers to step through their code in either direction. Using a stack, previous program states can be retrieved on demand. Our solution balances performance and memory consumption and hence can be used to debug even long and complex programs.
ISBN:3030337588
9783030337582
ISSN:0302-9743
1611-3349
DOI:10.1007/978-3-030-33759-9_9