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All Journal THABIEA : JOURNAL OF NATURAL SCIENCE TEACHING
Muhammad Zamhari
Pendidikan Kimia, Fakultas Ilmu Tarbiyah dan Keguruan, UIN Sunan Kalijaga, Yogyakarta, Indonesia

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SuCA: free android application to calculate and provide chemical preparation procedures Muhammad Zamhari; Zainal Arif Subekti
THABIEA : JOURNAL OF NATURAL SCIENCE TEACHING Vol 9, No 1 (2026): THABIEA: JOURNAL OF NATURAL SCIENCE TEACHING
Publisher : Institut Agama Islam Negeri Kudus

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21043/thabiea.v9i1.33990

Abstract

Solution Calculator Application (SuCA) application is an open-access application designed to aid chemistry teachers in preparing chemical solutions for lab experiments. It calculates required amounts and provides preparation guidance, easing the burden on teachers, especially in Indonesian schools where lab technicians are often absent. The app features seven menus, including instructions, solution preparation from solids and liquids, dilution calculator, concentration conversion, preparing metals in ppm, and application information. Users can also modify the existing database. It was tested by 113 respondents, including teachers, lab technicians, and pre-service students, across five assessment aspects: content, applicability, design, technical, and usability. The app scored an average of 79.70% of excellence performance, indicating its effectiveness in assisting users in calculating and preparing chemical substances.
Assessment tools development for enhancing higher order thinking skills in Islamic contextualized stoichiometry Didan Sopian; Muhammad Zamhari
THABIEA : JOURNAL OF NATURAL SCIENCE TEACHING Vol 8, No 1 (2025): THABIEA : JOURNAL OF NATURAL SCIENCE TEACHING
Publisher : Institut Agama Islam Negeri Kudus

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21043/thabiea.v8i1.30552

Abstract

This research seeks to create a higher-order thinking skills (HOTS) assessment for stoichiometry that integrates Islamic principles, ensuring it meets the criteria of validity, reliability, difficulty level, and distinctiveness. The integration is essential to combine scientific understanding with spiritual values and to enhance ethics in science. The research employed a research and development study with the Tessmer model, ,consisting of preliminary‎, self-evaluation‎, prototyping‎, and field test stages. Product quality was validated by a material expert, a media expert, and an Islamic Integration expert with a score of 98.96%, 99.03%, and 73.13%, respectively. Then, the product was also assessed by six reviewers (chemistry teachers) with a score of 93.26% as a very good category. The product was tested on 75 students in 10th grade with 16 valid items and four invalid items with very high reliability, namely 0.843. The invalid items was then discarded. At the difficulty level, the product contains six easy, ten medium, and four difficult questions, with more than 75% of the questions able to distinguish students with high and low abilities. Therefore, the developed instrument is suitable for measuring HOTS and Islamic integration on the material of stoichiometry. However, the implementation of questions combining the teaching of chemistry and Islam can be utilized to produce better research outcomes.
Co-Authors Didan Sopian Zainal Arif Subekti