Programming Representations: Uncovering the Process of Constructing Data Visualizations in a Block-based Programming Environment

Cassia Fernandez, R. de Deus Lopes, Paulo Blikstein
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Abstract

In this paper, we analyze how middle schoolers engaged in data visualization activities using PlayData, an educational tool designed to create representations for data by taking advantage of the flexibility and low entry point of block-based programming environments. Drawing on the analysis of artifacts and videos collected during a three-day workshop, we explore the types of visualizations created by participants and the process they engaged with to produce visualizations. Although the representational forms chosen by students were mainly traditional, our findings indicate that they were engaged in authentic data visualization practices throughout their programming process. These practices included translating ideas into programs, selecting parameters (such as color scheme and space between data points), inspecting the output, and adding annotations to provide context and better communicate the desired information. Moreover, our analysis pointed out opportunities for improving PlayData, mainly by the addition of new primitives for automating labeling and performing data transformations.
编程表示:揭示在基于块的编程环境中构建数据可视化的过程
在本文中,我们分析了中学生如何使用PlayData进行数据可视化活动,PlayData是一种教育工具,旨在利用基于块的编程环境的灵活性和低入口点来创建数据表示。在为期三天的研讨会中,通过对收集的工件和视频的分析,我们探索了参与者创建的可视化类型以及他们参与制作可视化的过程。虽然学生选择的表示形式主要是传统的,但我们的研究结果表明,他们在整个编程过程中都参与了真实的数据可视化实践。这些实践包括将想法转化为程序、选择参数(例如配色方案和数据点之间的空间)、检查输出以及添加注释以提供上下文并更好地传达所需的信息。此外,我们的分析指出了改进PlayData的机会,主要是通过添加用于自动标记和执行数据转换的新原语。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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