Development of ethnoscience-based student worksheets of redox reactions, volta cells, and corrosion using liveworksheets

Liana Vinca Rosea Cristy, Fransisca Ditawati Nur Pamenang
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Abstract

Learning about ethnoscience can help students better understand chemistry because it connects to their daily experiences. However, students often struggle with redox and electrochemical concepts due to a lack of appropriate learning materials and difficulty grasping these ideas. This research aims to achieve the following objectives: (1) develop ethnoscience-based student worksheets on redox reactions, Volta cells, and corrosion using Liveworksheets, following the 4D development model modified to 3D; (2) create ethnoscience-based student worksheets on these topics that are valid, effective, and practical. The research employed validation sheets and questionnaires as instruments, with a sample of six students from the 12th grade. Data was analyzed descriptively. The results indicate that (1) the modified 4D development model was suitable for creating the student worksheets due to its systematic stages and adaptability to researchers' needs; (2) both the media and material showed high validity percentages, averaging 88% and 89%, respectively. The worksheets were considered quite effective, with an average percentage of 66%, and practical, with an average percentage of 78%. Overall, the developed product can be effectively used to teach redox reactions, voltaic cells, and corrosion in chemistry using Liveworksheets.
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利用 liveworksheets 开发基于民族科学的氧化还原反应、伏特电池和腐蚀问题学生作业单
学习民族科学可帮助学生更好地理解化学,因为这与他们的日常经验息息相关。然而,由于缺乏适当的学习材料,学生往往难以掌握氧化还原和电化学概念。本研究旨在实现以下目标:(1) 利用 Liveworksheets 开发基于民族科学的氧化还原反应、伏特电池和腐蚀的学生工作表,并将 4D 开发模式修改为 3D 开发模式;(2) 就这些主题创建有效、有效和实用的基于民族科学的学生工作表。研究采用验证表和调查问卷作为工具,以十二年级的六名学生为样本。对数据进行了描述性分析。结果表明:(1) 修改后的 4D 开发模式因其系统的阶段性和对研究人员需求的适应性而适合于制作学生工作表;(2) 媒体和材料都显示出较高的有效性百分比,平均分别为 88% 和 89%。工作表被认为相当有效,平均有效率为 66%,而且实用,平均实用率为 78%。总之,开发的产品可有效地用于使用 Liveworksheets 讲授化学中的氧化还原反应、伏打电池和腐蚀。
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