Novel Scratch Programming Blocks for Web Scraping

Although Scratch is the most widely used block-based educational programming language, it is not easy for students to create various types of Scratch programs based on real-life data because it does not provide web scraping capabilities. In this paper, we present novel Scratch blocks for web scrapin...

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Veröffentlicht in:Electronics (Basel) Jg. 11; H. 16; S. 2584
Hauptverfasser: Park, Youngki, Shin, Youhyun
Format: Journal Article
Sprache:Englisch
Veröffentlicht: Basel MDPI AG 01.08.2022
Schlagworte:
Automation
Computer programming
Computer science
Data collection
Information literacy
Keyboards
Learning
Methods
Mouse devices
Programming languages
Secondary school students
Selectors
Servers
Students
Teachers
Web browsers
Web portals
Web scraping
Websites
South Korea
ISSN:2079-9292, 2079-9292
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Zusammenfassung:Although Scratch is the most widely used block-based educational programming language, it is not easy for students to create various types of Scratch programs based on real-life data because it does not provide web scraping capabilities. In this paper, we present novel Scratch blocks for web scraping. Using these blocks, students can not only scrape the contents of HTML elements in a web page by using CSS selectors but also automate their keyboard and mouse in a number of ways, such as by using XPaths, the coordinates of the mouse, input strings, keys, or hot keys. We also present file access blocks that allow students to easily store and retrieve the scraped data in the form of key–value pairs. We conducted two lectures for a total of 15 primary/secondary school (K-12) teachers, allowing them to make ten web scraping example applications. As a result of a survey of the teachers, the proposed web scraping blocks achieved high scores for all evaluation measures.
Bibliographie:ObjectType-Article-1
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ISSN:2079-9292
2079-9292
DOI:10.3390/electronics11162584