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CodeOrama: A Two-Dimensional Visualization Tool for Scratch Code to Assist Young Learners' Understanding of Computer Programming

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Τίτλος: CodeOrama: A Two-Dimensional Visualization Tool for Scratch Code to Assist Young Learners' Understanding of Computer Programming
Γλώσσα: English
Συγγραφείς: Ladias, Anastasios, Mikropoulos, Aristotelis, Ladias, Demetrios, Bellou, Ioanna
Πηγή: Themes in eLearning. 2021 14:31-41.
Διαθεσιμότητα: Themes in eLearning. Web site: http://earthlab.uoi.gr/tel/index.php/themeselearn
Peer Reviewed: Y
Page Count: 11
Ημερομηνία έκδοσης: 2021
Τύπος εγγράφου: Journal Articles
Reports - Research
Descriptors: Visualization, Coding, Programming, Programming Languages, Computer Science Education, Educational Technology, Robotics, Student Projects, Active Learning, Competition, Foreign Countries
Γεωγραφικοί όροι: Greece
ISSN: 2585-3856
Περίληψη: This paper reports on CodeOrama, a visualization tool that displays the entire source code in a two-dimensional representation created to support the representation of a complex code in block-based programming environments, like Scratch, by using a two-dimension table. CodeOrama can be used by the students for the development of their programs as well as by the teachers in order to support their specific pedagogical choices. This paper demonstrates the main representation capabilities that CodeOrama provides, i.e. a) direct information about the program size, b) identification of the code parts with algorithmic and communicational overload, c) code modularization by procedures, messages, clones, d) ways of interaction between scripts or other objects (based on polling and interrupt techniques), e) program flow representation, f) segment points where code interacts with the user, g) data representation and the kind of programming that was adopted (structured, parallel, event driven). The results of a pilot study concerning 87 programming projects with CodeOrama, in the context of the final phase of the Greek Competition of Educational Robotics, showed the potential of the tool but equally highlight some limitations and students' difficulties such as a manual and time-consuming burden during its creation process.
Abstractor: As Provided
Entry Date: 2021
Αριθμός Καταχώρησης: EJ1305319
Βάση Δεδομένων: ERIC
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  Data: This paper reports on CodeOrama, a visualization tool that displays the entire source code in a two-dimensional representation created to support the representation of a complex code in block-based programming environments, like Scratch, by using a two-dimension table. CodeOrama can be used by the students for the development of their programs as well as by the teachers in order to support their specific pedagogical choices. This paper demonstrates the main representation capabilities that CodeOrama provides, i.e. a) direct information about the program size, b) identification of the code parts with algorithmic and communicational overload, c) code modularization by procedures, messages, clones, d) ways of interaction between scripts or other objects (based on polling and interrupt techniques), e) program flow representation, f) segment points where code interacts with the user, g) data representation and the kind of programming that was adopted (structured, parallel, event driven). The results of a pilot study concerning 87 programming projects with CodeOrama, in the context of the final phase of the Greek Competition of Educational Robotics, showed the potential of the tool but equally highlight some limitations and students' difficulties such as a manual and time-consuming burden during its creation process.
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