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All Journal QUANTUM: Jurnal Inovasi Pendidikan Sains JCER (Journal of Chemistry Education Research)
Irah Namirah, Irah
Universitas Sultan Ageng Tirtayasa
Chemical Engineering, Chemistry & Bioengineering Chemistry Education Physics

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DEVELOPMENT OF ETHNOSAINS-BASED LEARNING MODULE THEME ACID AND BASE FOR SENIOR HIGH SCHOOL CLASS XI Maytrea, Fiesta Iqlima; Namirah, Irah; Solfarina, Solfarina
JCER (Journal of Chemistry Education Research) Vol 4, No 1 (2020): Volume 4 No. 1 June 2020
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/jcer.v4n1.p16-22

Abstract

This research-based on decreasing cultural identity because of the process of globalization and limited modules used in learning that integrated with culture. This research aims to determine the validity of ethnoscience based learning modules with the theme of acids and bases and to find out the response of class XI students to the modules used. The research method is Research and Development (R&D) which includes several stages: problem identification, data collection, design module, design validation, design revisions, small-scale trials, and final module. The results showed that the modules developed according to BSNP valid with Aiken calculations for aspects of content and media were 0.99 and 0.97. As for the responses of students in the high, medium and low groups, and the percentage 92%, 93%, and 92% which are included in the category very good. The developed module has proven valid to use in learning.
DEVELOPMENT OF ETHNOSAINS-BASED LEARNING MODULE THEME ACID AND BASE FOR SENIOR HIGH SCHOOL CLASS XI Maytrea, Fiesta Iqlima; Namirah, Irah; Solfarina, Solfarina
JCER (Journal of Chemistry Education Research) Vol 4, No 1 (2020): Volume 4 No. 1 June 2020
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/jcer.v4n1.p16-22

Abstract

This research-based on decreasing cultural identity because of the process of globalization and limited modules used in learning that integrated with culture. This research aims to determine the validity of ethnoscience based learning modules with the theme of acids and bases and to find out the response of class XI students to the modules used. The research method is Research and Development (R&D) which includes several stages: problem identification, data collection, design module, design validation, design revisions, small-scale trials, and final module. The results showed that the modules developed according to BSNP valid with Aiken calculations for aspects of content and media were 0.99 and 0.97. As for the responses of students in the high, medium and low groups, and the percentage 92%, 93%, and 92% which are included in the category very good. The developed module has proven valid to use in learning.
Enhancing Students’ Science Process Skills Through PjBL in Acid-Base Titration Experiment Khodizah, Ayu Tri; Surya Dewi, Ni Pt. Pande Mirah; Langitasari, Indah; Namirah, Irah
QUANTUM: Jurnal Inovasi Pendidikan Sains Vol 16, No 2 (2025): Oktober 2025
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/quantum.v16i2.21638

Abstract

Science process skills (SPS) are essential competencies in 21st-century education. This study aimed to evaluate the effectiveness of the Project-Based acid-based titration project. A pre-experimental one-group pretest-posttest design was applied to 32 high school students in Serang City. Instruments included observation sheets and 28 essay items, validated by 10 experts using CVR (38 items retained, CVR ≥ 0.62) and tested for reliability (Cronbach's alpha = 0.542). Data were analyzed using the Shapiro-Wilk test, paired sample t-test, N-Gain, and effect size. Results showed a significant improvement in SPS, with pre- and post-test mean scores increasing from 40.00 to 74.34. The t-test yielded t(31) = -21.417, p < 0.001, and effect size was high (μ = 0.97). N-Gain analysis indicated moderate improvement in most indicators—such as planning steps (0.63), identifying patterns (0.65), and applying concepts (0.63)—but low gains in hypothesizing alternatives (0.04) and interpreting graphs (0.15). These findings suggest that PjBL is an effective strategy for developing SPS in practical chemistry contexts, preparing students for scientific reasoning and inquiry in the industrial era 4.0.
Co-Authors Indah Langitasari Khodizah, Ayu Tri Maytrea, Fiesta Iqlima Solfarina, Solfarina Surya Dewi, Ni Pt. Pande Mirah