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Desy Kurniawati
Universitas Negeri Padang
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Pengembangan E-Modul Sistem Koloid dengan Contextual Teaching and Learning (Ctl) Berorientasi Chemo-Entrepreneurship (Cep) untuk Meningkatkan Kemampuan Berpikir Kritis Peserta Didik Maifil Dwi Andrean; Rahadian Zainul; Umar Kalmar Nizar; Desy Kurniawati
Jurnal Penelitian Pendidikan IPA Vol 10 No 9 (2024): September
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v10i9.8546

Abstract

The high unemployment rate among high school graduates and the low critical thinking ability of high school students motivated the author to develop electronic teaching materials based on a contextual approach and oriented toward entrepreneurship. This study aims to determine the validity, practicality, and effectiveness of the e-Module on colloid system with Contextual Teaching and Learning (CTL) oriented toward Chemo-Entrepreneurship (CEP) to enhance students' critical thinking ability. The research method employed is Research and Development (R&D) using the Plomp model, which consists of the preliminary research phase, development or prototyping phase, and assessment phase. The research instruments used include validity questionnaires, practicality questionnaires and critical thinking ability test. The e-Module was validated by three lecturers from the Chemistry Department at UNP and two chemistry teachers from SMAN 6 Solok Selatan. Practicality testing was conducted with two chemistry teachers and 30 eleventh-grade students from SMAN 6 Solok Selatan. Data obtained from the validity and practicality tests were analyzed using Aiken’s V formula and practicality percentages. The validity test results showed a V value of 0.92, indicating a valid category. The analysis of the teacher practicality questionnaire showed an 86% score, categorized as very practical, while the student practicality questionnaire showed an 81% score, categorized as practical. The t-test yielded a sig (2-tailed) value of 0.026. Based on these results, it can be concluded that the developed e-Module is valid, practical, and effective in enhancing students' critical thinking skills.
Pengembangan E-Modul Larutan Penyangga Berbasis Problem Based Learning Terintegrasi Etnokimia Untuk Meningkatkan Kemampuan Berpikir Kritis Peserta Didik Nadia; Desy Kurniawati; Alizar; Budhi Oktavia
Jurnal Penelitian Pendidikan IPA Vol 12 No 3 (2026)
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v12i3.14653

Abstract

This study aims to produce an electronic module (E-module) of buffer solutions based on ethnochemistry-integrated problem-based learning to improve students' critical thinking skills and analyze the level of validity, practicality, and effectiveness of the E-module on students' critical thinking skills. This type of research is Research and Development (R&D) with a 4-D development model. The 4-D development model consists of 4 stages of development, namely define, design, develop and disseminate. The results of the construct and content validity tests were 0.88, respectively, in the valid category. The results of the teacher and student practicality tests were 88.33% and 84.93%, respectively, in the very practical category. The N-Gain value analysis in the experimental and control classes was 0.71 and 0.46, respectively, in the high and medium criteria. The t-test results showed that students' critical thinking skills at SMAN 1 Bungo who used the E-module of buffer solutions based on ethnochemistry-integrated Problem-Based Learning were significantly higher than the control class that did not use the E-module. Thus, it can be said that the E-module on buffer solution material is valid, practical, and effective in significantly improving students' critical thinking skills.
Development of a PBL-Based E-LKPD Assisted by the wizer.me Website on Buffer Solution Material for Phase F Senior High School Students Suci Ramadani; Desy Kurniawati
BIOCHEPHY: Journal of Science Education Vol. 6 No. 1 (2026)
Publisher : MO.RI Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52562/biochephy.v6i1.1917

Abstract

This study is a research and development (R&D) study aimed at producing an electronic student worksheet (E-LKPD) based on Problem-Based Learning (PBL) assisted by the Wizer.me website on the topic of buffer solutions. The development model employed was the 4-D model, comprising the define, design, develop, and disseminate stages; however, this study was limited to the develop stage. The research instruments included interview guidelines, validation sheets, teacher practicality questionnaires, and student response questionnaires. The research subjects consisted of three chemistry lecturers from FMIPA UNP, two chemistry teachers from SMA Pertiwi 1 Padang, and Phase F students of SMA Pertiwi 1 Padang in the 2025/2026 academic year. The data collected were primary data analysed through validity and practicality tests. The expert validity test yielded an average Aiken's V index of 0.91, categorised as valid. The practicality test results indicated mean scores of 96% from teachers and 90% from students, both categorised as very practical. Based on these findings, it can be concluded that the developed PBL-based E-LKPD assisted by Wizer.me is valid, highly practical, and feasible for use as a chemistry learning medium on buffer solution material.
Co-Authors Afdina Afdina Ahmad Maulana Ardi Ali Amran Alizar Ananda Putra Annisa Nabila Rahma Aroma Karmila Astuti Azhma Ulya Berliana Salsabila Budhi Oktavia Delfitri Delfitri Deski Beri Deva Indriyani Dewi Rika Aryani Dwi Hartati Edi Nasra Elinda Fithriana Emmilya Febri Marthin Fadhilatu Zikra Fadilla Yuri Merti Fauzan Aulia Akbar Fauzana Gazali Haifa Hafifah Hardeli Hardeli Hardeli Hary Sanjaya Hesty Parbuntari Indang Dewata Latisma Latisma Maifil Dwi Andrean Mufi Nasda Mulia, Melindra Nadia Nesya Febi Utami Niza Lian Pernadi Nofrianto Nofrianto Nova Fitriani Nur Hafni Hasibuan Rahadian Zainul Rahmi Eka Witri Ramadani, Suci Rela Faradina Riga Oktry Silpa Riga Riga Romy Dwipa Yamesa Away Salmariza Sy. Sri Benti Etika Suryelita . Syamsi Aini Trisna Kumala Sari Ulianas, Alizar Umar Kalmar Nizar Yani Puspita Yani Yeni, Isra Yerimadesi Yona Prestica