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All Journal JPPS (Jurnal Penelitian Pendidikan Sains) Journal of Mathematics Science and Computer Education
Helda Rahmawati
UIN Antasari Banjarmasin
Biochemistry, Genetics & Molecular Biology Chemistry Earth & Planetary Sciences Education Mathematics Physics

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Practicality of Web-Based Four-Tier Test to Identify Student's Misconceptions in Chemical Bonding Materials Yulia Sari; Ratna Kartika Irawati; Helda Rahmawati
JPPS (Jurnal Penelitian Pendidikan Sains) Vol. 12 No. 2 (2023)
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/jpps.v12n2.p108-121

Abstract

Misconceptions can be identified using a four-level test format diagnostic test. However, this test is less effective because it still uses paper/print and requires a long time at the correction stage. Therefore, it is necessary to develop a web-based four-level test. Objective: The purpose of this research is to find out the practicality of a web-based four-level test. Methods: This type of research is descriptive quantitative with data sources from class X MIPA MAN 1 Hulu Sungai Tengah. The data collection technique uses a questionnaire to test practicality. Results: The results of the practicality test obtained an average percentage of 82.5% in the very practical category in aspects of web appearance, image clarity, material suitability, language, paperless, and helping to determine students' abilities and weaknesses in chemical bonding material. Based on this assessment, a web-based four-level practice test product was used to identify misconceptions in class X MIPA MAN 1 Hulu Sungai Tengah. While the results of students' misconceptions on Lewis structure indicators in chemical compounds were 49.21%, ionic bond formation indicators were 39.68%, covalent bond formation indicators were 47.09%, polar covalent compound indicators were 38.89%, metallic bond indicators were 39.42%, and indicators of the physical properties of compounds based on their bonds of 46.03%. All percentages on these indicators include medium criteria. Novelty: Previous researchers have never done this research, which measured students' misconceptions with web-based four-tier tests in chemistry concepts.
Validity of Student Worksheets Based on Multiple Representations of Electrolyte and Non-Electrolyte Solution Materials Nazwa Syauqiah; Helda Rahmawati; Ratna Kartika Irawati
Journal of Mathematics Science and Computer Education Vol 4, No 1 (2024)
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/jmscedu.v4i1.11322

Abstract

Multiple representations can facilitate the understanding of abstract chemical concepts. Multiple representations can be incorporated into teaching materials, such as Student Worksheets, to create Multiple Representation-based Student Worksheets. This study aims to analyze the validity of Student Worksheets based on multiple representations of electrolyte and non-electrolyte solutions. The research utilized the Research and Development (R&D) model with the ADDIE (Analysis, Design, Development, Implementation, and Evaluation) development stages, reaching the development stage in this study. Data were obtained from material expert and media expert validators. Descriptive statistical analysis was used to analyze the validity results. The Student Worksheets based on multiple representations of electrolyte and non-electrolyte solution materials achieved an average validity percentage of 84.37% from material experts and 95% from media experts, categorizing them as very valid. These worksheets, focusing on the validity aspect, are effective in assisting students in understanding chemical concepts.
Co-Authors Nazwa Syauqiah Ratna Kartika Irawati Yulia Sari