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All Journal Jurnal Periodic Jurusan Kimia UNP Biomedika Jurnal Progres Kimia Sains Jurnal Penelitian Pendidikan IPA (JPPIPA) Jurnal Administrasi Pendidikan Indonesia Communications in Science and Technology Chemistry Indonesian Journal of Chemical Research JURNAL PENDIDIKAN TAMBUSAI Eksakta : Berkala Ilmiah Bidang MIPA Jurnal Crystal : Publikasi Penelitian Kimia dan Terapannya Pelita Eksakta Indonesian Journal of Chemical Science and Technology Entalpi Pendidikan Kimia BIOCHEPHY: Journal of Science Education CHEDS: Journal of Chemistry, Education, and Science Automotive Experiences Journal of Educational Sciences MASALIQ: Jurnal Pendidikan dan Sains Entalpi Pendidikan Kimia Chimica Didactica Acta : Journal of Chemistry and Chemistry Education Journal of Global Research Education Jurnal Pendidikan MIPA
Desy Kurniawati
Jurusan Kimia FMIPA Universitas Negeri Padang
Religion Aerospace Engineering Agriculture, Biological Sciences & Forestry Humanities Astronomy Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Education Electrical & Electronics Engineering Energy Engineering Environmental Science Library & Information Science Materials Science & Nanotechnology Mathematics Mechanical Engineering Medicine & Pharmacology Physics Social Sciences Other

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DEVELOPMENT OF STUDENT WORKSHEETS ON THE PERIODIC SYSTEM OF ELEMENTS BASED ON CONTEXTUAL TEACHING AND LEARNING FOR PHASE-E SENIOR HIGH SCHOOL Risty, Chika Mei; Kurniawati, Desy; Hardeli, Hardeli; Zainul, Rahadian; Syolendra, Dwi Finna
Chimica Didactica Acta Vol 12, No 2: December 2024
Publisher : FKIP USK

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24815/jcd.v12i2.42002

Abstract

This study aimed to produce teaching materials in student worksheets based on contextual teaching and learning and to determine the validity and practicality of the student worksheets developed. The research method used is educational design research (EDR), with the Plomp development model carried out until the validity and practicality test stages are achieved. This development research shows that the contextual teaching and learning-based student worksheets developed are valid and practical. This is supported by the validation results, which have an average value of 0.91 and are included in the very valid category. The practicality results obtained from the small group test of students get a percentage of 95%, and the percentage result from the teacher is 92%, which is included in the Highly practical category. These results indicate that the student worksheets developed are feasible to be applied to learning to help students' understanding of concepts on the material of the periodic system of elements and encourage students to become active, creative, and critical learners. The results of this study indicate that the student worksheets developed are suitable for use in the learning process on the material of the periodic system of elements in phase E Senior High School.
Development of Guided Discovery Learning Voltaic Cell E-LKPD for Class XII SMA/MA Students Yola, Servi Farda; Kurniawati, Desy
Journal of Educational Sciences Vol 7. No. 1. January 2023
Publisher : FKIP-Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jes.7.1.p.110-121

Abstract

This study aims to develop voltaic cell E-LKPD based on guided discovery learning. This research is research and development or Research and Development (R&D) which uses the Plomp development model. This development model consists of three stages including initial research, prototype formation, and the assessment stage. The research instrument was in the form of a questionnaire sheet. The E-LKPD was validated by 5 validators including 4 chemistry lecturers at FMIPA UNP and 1 chemistry teacher at SMA Negeri 1 Batang Anai. This data was analyzed using the Aiken'V scale to test validity, practicality test was analyzed using the percent formula, effectiveness test using the N-Gain formula. The results of the content validation test average value of 0.85 in the high category. Construct validation test results with an average value of 0.89 in the high category. Media validation test results with an average value of 0.82 in the high category. The practicality test results of students and teachers with aspects of ease of use, time efficiency, and benefits respectively with an average of 87% and 96% in the very practical category. The results of the effectiveness test were obtained with a value of 0.71 in the high category. The results of the answers to the voltaic cell E-LKPD based on guided discovery learning obtained an average of 84. Based on the results of the study it can be concluded that the developed voltaic cell E-LKPD based on guided discovery learning is valid, practical, and effective.
Application of aloe vera gel edible coating for Minimizing damage to tomatoes in the farming group Usaha Bersama Pemuda Solok Saiyo Sakato, Nagari Surian, Solok Regency Parbuntari, Hesty; Amelia, Kiki; Kurniawati, Desy; Mahmud, Mahmud; Martha, Rahma Dyan
Pelita Eksakta Vol 7 No 2 (2024): Pelita Eksakta, Vol. 7, No. 2
Publisher : Fakultas MIPA Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/pelitaeksakta/vol7-iss2/250

Abstract

The most common profession among Surian people is in the agricultural sector, such as tomato farmers. The farmers who are partners in PKM activities are tomato farmers in Nagari Surian, Pantai Cermin District, Solok Regency. Tomato farmers often experience losses because when the tomato harvest season arrives the product is abundant, while demand is constant. Farmers will just let the tomatoes rot because the harvesting process will take up a lot of energy and money. This activity focuses on efforts to control the quality of post-harvest tomatoes by using a coating technique based on edible natural ingredients (edible coating) with the natural ingredient aloe vera. The stages of this activity are divided into three activities, namely initial activities which include analysis of partner needs, core (providing material and practice) and final (program evaluation). Based on the results of a questionnaire given to partners as many as 20 people with an age range of 25 – 46 years and consisting of men and women, 90% of participants agreed that this edible coating could be used to solve the problem of tomatoes that rot easily after harvest.
Biosorption of Methylene Orange Dye using Langsat Shell by Batch Method Kurniawati, Desy; Lestari, Intan; Tarmizi, Fadhilah; Pernadi, Niza Lian; Iqbal, Anwar
EKSAKTA: Berkala Ilmiah Bidang MIPA Vol. 24 No. 03 (2023): Eksakta : Berkala Ilmiah Bidang MIPA (E-ISSN : 2549-7464)
Publisher : Faculty of Mathematics and Natural Sciences (FMIPA), Universitas Negeri Padang, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/eksakta/vol23-iss03/419

Abstract

Liquid waste is a major problem in the textile industry environment that has the most widespread influence because physical and aquatic characteristics can have a negative impact on waters. Most of the liquid waste produced by batik comes from the dyeing process and environmental pollution. If it is disposed of directly into the environment without prior processing, the environment has a limited ability to degrade dyestuffs. One alternative method to remove the dye in water contaminated with methyl orange is biosorption using a cheap and easily available biosorbent, such as a langsat shell. This study used a batch method with variations in pH, solution concentration, particle size, stirring speed, and contact time. The results of each variation carried out obtained the optimum conditions for the absorption of Methyl Orange, namely at: pH 4, concentration 150 mg/L, and particle size 150 μm. The adsorption isotherm study was carried out, the Langmuir equation yielded a regression coefficient value that was close to one (R2 = 0.9964) so that it could be said to be better with a maximum absorption capacity of 3.1164 mg/g
Integrative Review Analisis Kebutuhan Pengembangan Kurikulum IPA Terintegrasi Pendidikan Mitigasi Bencana di Indonesia Mawardi; Kurniawati, Desy
Journal of Global Research Education Vol. 2 No. 2 (2025)
Publisher : Akademi Akuntansi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62194/we5cfj47

Abstract

Artikel ini melakukan analisis kebutuhan (needs analysis) untuk pengembangan kurikulum IPA yang terintegrasi dengan pendidikan mitigasi bencana di Indonesia menggunakan pendekatan integrative review. Latar belakang penelitian ini adalah kondisi geografis Indonesia yang rentan terhadap bencana alam, sehingga memerlukan upaya komprehensif dalam meningkatkan kesiapsiagaan masyarakat melalui pendidikan. Tujuan penelitian ini adalah untuk mengidentifikasi kebutuhan dan peluang untuk pengembangan kurikulum IPA yang terintegrasi dengan pendidikan mitigasi bencana. Metode penelitian ini menggunakan pendekatan integrative review, yang menggabungkan tinjauan literatur secara sistematis dengan analisis data empiris dari berbagai sumber. Hasil penelitian menunjukkan bahwa integrasi pendidikan mitigasi bencana dalam kurikulum IPA masih belum optimal, meskipun telah ada upaya-upaya yang dilakukan baik di tingkat kebijakan maupun praktik pembelajaran. Penelitian ini mengungkapkan beberapa temuan penting, termasuk perlunya pengembangan kurikulum yang koheren, penggunaan pendekatan pembelajaran yang inovatif, penguatan kapasitas guru, serta kemitraan yang kuat antara sekolah dan pemangku kepentingan terkait. Dengan demikian, penelitian ini memberikan landasan empiris untuk pengembangan kurikulum IPA yang lebih responsif terhadap kebutuhan mitigasi bencana di Indonesia.
FORMULASI PUPUK ORGANIK CAIR (POC) BERBAHAN LIMBAH KULIT BAWANG MERAH, KULIT JERUK, KULIT NANAS, DAN AIR CUCIAN BERAS DENGAN PENAMBAHAN EM4: Pembuatan Pupuk Organik Cair (POC) dari Kulit Bawang Merah, Kulit Jeruk, Kulit Nanas dan Air Cucian Beras dengan Penambahan EM4 Mardi; Kurniawati, Desy; Rosalynna Stiadi, Della; Putri Ana, Aziza; Rara Bahri, Rayhani; Rahayu Ningsih, Sri
Jurnal Crystal : Publikasi Penelitian Kimia dan Terapannya Vol. 7 No. 1 (2025): Publikasi Penelitian Kimia dan Terapannya 2025
Publisher : Program Studi Kimia, Fakultas MIPA, Universitas PGRI Banyuwangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36526/jc.v7i1.5099

Abstract

One solution to overcome the problem of household organic waste is to use technology to process it into liquid organic fertilizer (POC). POC is a solution that contains one or more essential nutrients that are easily absorbed by plants. The main ingredient for making quality POC comes from organic waste, especially wet organic material with high water content, such as fruit and vegetable waste. Several types of waste, such as onion peels, orange peels and pineapple peels, can be processed into POC by adding EM4 as an activator. This research aims to process fruit and vegetable waste into POC, improve skills in making it, and compare the effectiveness of POC with NPK fertilizer on the growth of chili plants. The process of making POC is carried out by mixing onion peel, orange peel and pineapple peel waste with water, rice washing water and brown sugar solution, then adding EM4. This mixture is fermented for seven days with daily stirring and ventilation. The research results show that the POC produced has good nutritional content and can be used as organic fertilizer.
Modification Of High-Protein Healthy PMT (Supplementary Feeding) As An Effort To Prevent Stunting And Malnutrition In Nagari Kamang Hilia, Kamang Mudiak District, Agam Mulia, Melindra; Yuniarti, Elsa; Kurniawati, Desy; Stiadi, Della Rosalyna; Gazali, Fauzana; Yuranda, Fitri; Putri, Raisya Pratama; Safitri, Nadila
Pelita Eksakta Vol 8 No 01 (2025): Pelita Eksakta, Vol. 8, No. 1
Publisher : Fakultas MIPA Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/pelitaeksakta/vol8-iss01/282

Abstract

Stunting is a chronic malnutrition problem caused by inadequate nutritional intake over a long period of time, resulting in impaired optimal physical and cognitive development. The problem of stunting and malnutrition requires coordination between various parties to overcome it. In Agam Regency, especially Nagari Kamang Hilia, the stunting rate is still relatively high, with a prevalence of 24.6%, according to the latest Indonesian Nutrition Status Survey (SSGI). One of the factors influencing this is the high cost of nutritious food, which reduces the interest of mothers in serving healthy menus for the family. Therefore, education and training on nutritious food processing with alternative food sources is needed to increase public understanding. This program targets posyandu cadres and PKK mothers as the main targets, with the aim of providing knowledge about the importance of fulfilling nutrition to prevent stunting and malnutrition. The results of this activity are expected to increase awareness and interest of mothers in processing nutritious food that is attractive and liked by families, especially children.
EFEKTIVITAS MODUL BERBASIS PBL TERINTEGRASI STEM MATERI KESETIMBANGAN KIMIA TERHADAP HASIL BELAJAR SISWA Barkah, Fitri Annisa; Kurniawati, Desy
BIOCHEPHY: Journal of Science Education Vol. 5 No. 1 (2025)
Publisher : MO.RI Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52562/biochephy.v5i1.1597

Abstract

Kecenderungan siswa dalam melihat kimia sebagai ilmu yang dipenuhi dengan rumus-rumus kompleks tanpa keterkaitan nyata dengan kehidupan sehari-hari, persepsi ini dapat berdampak negatif terhadap minat belajar siswa, yang pada akhirnya memengaruhi hasil belajar mereka. Penelitian ini bertujuan untuk. Penelitian ini bertujuan untuk mengkategorikan Tingkat efektivitas penggunaan modul berbasis Problem Based Learning terintegrasi STEM pada materi kesetimbangan kimia. Penelitian ini merupakan penelitian Quasi Eksperimental dengan desain Non-equivalent Control Group Design. Hasil efektivitas pretest dan posttest dari uji N-Gain hasil belajar siswa adalah 0,724, yang termasuk dalam kategori ‘Cukup Efektif’, dan hasil uji Mann-Whitney atau uji U pada Asymp. Sig = 0,00037<0,05, itu berarti pada hasil belajar kelas kontrol dan kelas eksperimen memiliki perbedaan yang signifikan. Berdasarkan hasil penelitian, ditemukan bahwa modul berbasis Problem Based Learning terintegrasi STEM pada materi kesetimbangan kimia efektif untuk meningkatkan hasil belajar peserta didik.
PENGEMBANGAN INSTRUMEN TES BERBASIS GAME EDUKASI WORDWALL PADA MATERI LAJU REAKSI FASE F SMA/MA Rantika Putri, Dwi; Kurniawati, Desy
BIOCHEPHY: Journal of Science Education Vol. 5 No. 1 (2025)
Publisher : MO.RI Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52562/biochephy.v5i1.1616

Abstract

Tes merupakan teknik penilaian untuk mengukur kemampuan, pemahaman serta pengetahuan peserta didik. Dalam kegiatan pembelajaran, diperlukan instrumen tes untuk mengukur aspek kognitif terhadap materi yang diajarkan. Penelitian ini merupakan penelitian Research and Development (R&D) dengan model pengembangan 4D, yang bertujuan untuk mengembangkan instrumen tes berbasis game edukasi wordwall pada materi laju reaksi dengan meninjau aspek validitas, reliabilitas, tingkat kesukaran, daya pembeda dan praktikalitas. Hasil validasi menunjukkan tingkat kevalidan aspek materi, bahasa, dan media berturut-turut 90,6%, 91,6%, dan 89,3%. Instrumen tes ini memiliki validitas logis sebesar 95,54%. Uji coba menghasilkan 24 dari 30 soal valid dan reliabilitas 0,88 dengan kategori sangat tinggi. Uji respon peserta didik 83,3% dan respon guru 97,3% dengan kategori sangat praktis. Hasil penelitian ini menunjukkan bahwa instrumen tes berbasis game edukasi wordwall pada materi laju reaksi yang dikembangkan telah memenuhi kriteria valid dan praktis.
Development of Guided Discovery Learning Voltaic Cell E-LKPD for Class XII SMA/MA Students Yola, Servi Farda; Kurniawati, Desy
Journal of Educational Sciences Vol. 7 No. 1 (2023): Journal of Educational Sciences
Publisher : FKIP - Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jes.7.1.p.110-121

Abstract

This study aims to develop voltaic cell E-LKPD based on guided discovery learning. This research is research and development or Research and Development (R&D) which uses the Plomp development model. This development model consists of three stages including initial research, prototype formation, and the assessment stage. The research instrument was in the form of a questionnaire sheet. The E-LKPD was validated by 5 validators including 4 chemistry lecturers at FMIPA UNP and 1 chemistry teacher at SMA Negeri 1 Batang Anai. This data was analyzed using the Aiken'V scale to test validity, practicality test was analyzed using the percent formula, effectiveness test using the N-Gain formula. The results of the content validation test average value of 0.85 in the high category. Construct validation test results with an average value of 0.89 in the high category. Media validation test results with an average value of 0.82 in the high category. The practicality test results of students and teachers with aspects of ease of use, time efficiency, and benefits respectively with an average of 87% and 96% in the very practical category. The results of the effectiveness test were obtained with a value of 0.71 in the high category. The results of the answers to the voltaic cell E-LKPD based on guided discovery learning obtained an average of 84. Based on the results of the study it can be concluded that the developed voltaic cell E-LKPD based on guided discovery learning is valid, practical, and effective.
Co-Authors Addawiyah, Nadiyatul Afifi, Rayhanil Afrilia, Yoni Aini, Syamsi Ali Amran Alizar Alizar, Alizar Alkhaira, Nisa Ana, Aziza Putri Andini, Namira Tri Andrean, Maifil Dwi Andromeda Anjelia, Mariza Ardi, Ahmad Maulana Arifah Sri Wahyuni Astuti Barkah, Fitri Annisa Benti Etika, Sri Budhi Oktavia Darussalam, Rahni Darwin Rio Budi Syaka Della Rosalynna Stiadi Dwi Finna Syolendra DWI RAMADHANI Edi Nasra Elsa Yuniarti Elviana Clara Manalu, Volma Em Sutrisna Fadhilah Fadhilah Faradina, Rela Fariz Adzani, Rivaldo Fatmawati, Rani Fauzana Gazali Firanti, Feyges Frilla Fitri Amelia Fitri, Bali Yana Fitria Ningsih, Rahmadhani Frista, Nada Gama Yoga, Nugroho Hafifah, Haifa Hamid, Syafira Putri Haqqu, Annisa Hardeli Hardeli Hardeli Hardianti, Amirah Salsabila Harmaiyani, Risky Hary Sanjaya Hasyim, Rahmat Heditama, Muhammad Raffi Hidayah, Rahma Holidayani Husna, Miftahul Ideal, Flami Luthfianisa Ifan Rivaldo Ikhsany, Diva Indang Dewata Indasyach Moreno, Zavi Intan Lestari Iqbal, Anwar Iryani Iryani Istiqamah, Siti Sarah Iswendi iswendi Jayawarsa, A.A. Ketut Karmila, Aroma Kartika, Reka Khairurrazak, Khairurrazak Kiki Amelia, Kiki Laily Nurliana Latisma, Latisma Lestari, Kardina Mahmud Mahmud Maida, Margarita Claudya Mardhatillah Nadien, Rahmah Mardi Marlini, Rahmida Martha, Rahma Dyan Marthin, Emmilya Febri Mawardi Miftahul Khair Muhammad Rayhan Mulia, Melindra Mutia, Nuraini Cut Nadia Nadia Nandi, Mila Lusy Tri Nizar, Umar Kalmar Nofianti, Nora Nofrianto Nofrianto Novela, Riana Nur Fitri Nurazmi, Suci Nurhayati Nurhayati Nurrahma, Yashinta Oktaviana, Najwa Annisa Parbuntari, Hesty Pasaribu, Nur Rizky Patricia, Popi Permana, Agus Agung Pernadi, Niza Lian Puja, Puja Putra Mustafit, Alvian Putra, Ananda Putri Ana, Aziza Putri Rinjani, Mitna Sekar Putri, Anisa Dwi Putri, Molsa Vitaloka Putri, Raisya Pratama Raden Mohamad Herdian Bhakti Rafael, Muhammad Rahadian Zainul Rahayu Ningsih, Sri Rahmi, Maulidia Arsyta Rantika Putri, Dwi Rara Bahri, Rayhani Riga Rio Budi Syaka, Darwin Risnawaty Risnawaty Risty, Chika Mei Romy Dwipa Yamesa Away Ronald, Meissa Lifangrha Rosalinda, Gigih Devy Safitri, Nadila Sari, Trisna Kumala Sepriyeni Oktavia, Syntia Sherly Kasuma Warda Ningsih Sri Benti Etika Stiadi, Della Rosalyna Sukarno, Ragil Suprawati, Vina Suryani, Okta Syamsul Arifin Tarmizi, Fadhilah Ulianas, Alizar Veronita, Silvi Witri, Rahmi Eka Yeni, Isra Yerimadesi Yerimadesi Yerimadesi Yoga, Nugroho Gama Yohanes Gunawan, Yohanes Yola, Servi Farda Yuranda, Fitri Zakiya, Ratu