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All Journal International Journal of Evaluation and Research in Education (IJERE) Jurnal Pendidikan Kimia Indonesia Journal of English Language Teaching Jurnal Pendidikan dan Pembelajaran Khatulistiwa (JPPK) Pharmaciana: Jurnal Kefarmasian Prosiding Ilmu Pendidikan Biology, Medicine, & Natural Product Chemistry QUANTUM: Jurnal Inovasi Pendidikan Sains Jurnal Tadris Kimiya Jurnal Zarah Jurnal Penelitian Pendidikan IPA (JPPIPA) Orbital: Jurnal Pendidikan Kimia JURNAL PENDIDIKAN GLASSER Jurnal Pendidikan Kimia (JPKim) EKSAKTA : Jurnal Penelitian dan Pembelajaran MIPA SELAPARANG: Jurnal Pengabdian Masyarakat Berkemajuan JURNAL EDUCATION AND DEVELOPMENT AR-RAZI Jurnal Ilmiah BULETIN AL-RIBAATH Jurnal Basicedu Jambura Journal of Educational Chemistry EDUKATIF : JURNAL ILMU PENDIDIKAN Jurnal Pendidikan Edutama Diagnosis: Jurnal Ilmiah Kesehatan Jurnal Abdi Insani Jurnal Inovasi Pembelajaran Kimia (Journal Of Innovation in Chemistry Education) Jurnal Pengabdian kepada Masyarakat Nusantara IJPD (International Journal Of Public Devotion) Hydrogen: Jurnal Kependidikan Kimia CHEDS: Journal of Chemistry, Education, and Science Jurnal Basicedu J-ABDIPAMAS (Jurnal Pengabdian Kepada Masyarakat) Jurnal Pengabdian Pada Masyarakat Jurnal Pendidikan Sains Indonesia (Indonesian Journal of Science Education) Moderatio : Jurnal Moderasi Beragama JIPI (Jurnal IPA dan Pembelajaran IPA) Journal of The Indonesian Society of Integrated Chemistry Nursing Genius Journal Jurnal Wicara Desa Al-Infaq : Jurnal Ekonomi Islam
Ira Lestari
Universitas Tanjungpura
Religion Aerospace Engineering Agriculture, Biological Sciences & Forestry Arts Humanities Astronomy Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Dentistry Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Immunology & microbiology Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Materials Science & Nanotechnology Mathematics Mechanical Engineering Medicine & Pharmacology Neuroscience Nursing Physics Public Health Social Sciences Transportation Veterinary Other

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The Effectiveness of Uno Kimia Cards in Enhancing Understanding of Molecular Shape Topic Among High School Students Ahmad*, Mujahidin; Erlina, Erlina; Lestari, Ira; Enawaty, Eny; Queiroz, Carla Cristina
Jurnal IPA & Pembelajaran IPA Vol 9, No 1 (2025): MARCH 2025
Publisher : Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24815/jipi.v9i1.42387

Abstract

Understanding molecular shapes poses significant challenging for students due to the abstract nature of the topic, which can limit engagement and comprehension. This study aims to investigate the effectiveness of uno kimia (Umia) cards as an instructional tool to enhance students comprehension on students' understanding of the molecular shapes topic at SMA Negeri 1 Mentebah. The study used a quasi-experimental design with a nonrandomized control pre-test and post-test was utilized, involving sixty tenth-grade students divided into experimental group using Umia cards and control groups employing traditional teaching methods. Learning outcomes were assessed using validated pre-test and post-test instruments, with content validity index scores of 0.88 and 0.82 for the teaching module, both results confirming the instruments were valid. The chi-square test revealed no significant difference in the control group (p = 0.504), while the experimental group using Umia cards showed significant improvement (p = 0.007). A non-parametric Mann-Whitney U test indicated homogeneity between the groups (p = 0.982). Results showed significant improvement in the experimental group's understanding, with an 88% increase, a high effect size (Cohen's d = 1.259), and a high N-gain score (mean = 0.7106) compared to the control group (mean = 0.4103). The findings indicate that the Umia cards are a highly effective pedagogical tool, capable of improving both student engagement and conceptual understanding in molecular shape topic. These results underscore the potential of interactive learning media in addressing challenges associated
Development of Matching Card Media as an Evaluation Tool on Mole Concept Subject Jati, Prameswara Wahyu; Erlina; Lestari, Ira
Hydrogen: Jurnal Kependidikan Kimia Vol. 13 No. 5 (2025): October 2025
Publisher : Universitas Pendidikan Mandalika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/hjkk.v13i5.18043

Abstract

This study aims to measure the feasibility level and students' responses to the matching card media that was developed. This type of research is Research and Development with the 4D development model. Data collection techniques in this study used measurement techniques in the form of feasibility tests and student response questionnaires using a Likert scale. The subjects of this study were the matching card media, with trial subjects being XI MIPA 1 students at SMA Negeri 5 Pontianak. Feasibility testing used the Gregory test conducted by two media experts and two graphic design experts. The feasibility test on the developed media met very high criteria with an average score of 1.00 in the material aspect and 1.00 in the graphics aspect. Students' responses to the media in the limited and main field tests were 95.58% and 92.55%, respectively, with very good criteria. Based on the results obtained, it can be concluded that the matching card media as an evaluation tool for the mol concept material is very feasible and received a very positive response. This study contributes to the development of interactive evaluation media for the mole concept material, which can enhance students' understanding, engagement, andmotivation.
Analysis of The Labor Wage System Outsourcing Based on Islamic Economic Principles (Case Study Pt Dimas Perkasa Putra) Lestari, Ira; Hamdani, Ikhwan; Hakiem, Hilman
Al-Infaq: Jurnal Ekonomi Islam Vol. 16 No. 2 (2025)
Publisher : Fakultas Agama Islam, Universitas Ibn Khaldun Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/alinfaq.v16i2.2321

Abstract

This research aims to describe the labor wage system outsourcing based on an Islamic economic perspective. Furthermore, this research aims to analyze the labor wage system outsourcing at PT Dimas Perkasa Putra based on an Islamic Economics perspective. This research uses a qualitative descriptive approach by selecting secondary and primary data sourced from PT Dimas Perkasa Putra. The results of this research show that wages in Islam are called ijarah which is a transaction contract for the right to use certain goods or services as well as proportional payment of wages. In general, the wage system at PT. Dimas Perkasa Putra is in accordance with the Islamic economic perspective, where Islamic values are contained in the wage system at PT Dimas Perkasa Putra, namely aspects of feasibility and fairness, including being reviewed from the work agreement. In implementing the work agreement, PT Dimas Perkasa Putra has provided clarity for its workforce, especially regarding wages. The company emphasizes the suitability of the current wages for the workforce at PT Dimas Perkasa Putra to improve the quality of the company and the welfare of the workforce.
PENGEMBANGAN LEMBAR KERJA PESERTA DIDIK (LKPD) BERBASIS DISCOVERY LEARNING PADA MATERI ASAM DAN BASA Lestari, Anggun; Hairida, Hairida; Lestari, Ira
Jurnal Zarah Vol. 9 No. 2 (2021): October, 2021
Publisher : Fakultas Keguruan dan Ilmu Pendidikan, Universitas Maritim Raja Ali Haji

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31629/zarah.v9i2.3122

Abstract

Penelitian ini bertujuan untuk mengembangkant Lembar Kerja Peserta Didik (LKPD) Berbasis Discovery Learning dalam pembelajaran kimia dalam pokok bahasan asam dan basa. LKPD yang dikembangkan berdasarkan hasil validasi dan respon guru. Metode pengembangan yang dilakukan adalah metode research and development (R&D) dengan model pengembangan ADDIE yang dikembangkan oleh Robert Maribe Branch. Adapun tahap pengembangan model ADDIE yaitu tahap analysis, design, development, implementation, dan evaluation. Teknik pengumpul data yang digunakan yaitu dengan melakukan observasi dan wawancara guru kimia SMK PGRI Pontianak. Subjek penelitian ini adalah LKPD berbasis Discovery Learning dan subjek uji cobanya yaitu empat guru kimia SMK yang ada di Pontianak. Uji validitas diuji berdasarkan aspek isi, penyajian ,bahasa, dan kegrafikan. Uji yang dilakukan dalam penelitian ini yaitu uji Gregory. Uji validasi setiap aspek dengan tingkat kategori sangat tinggi dengan nilai rata-rata 1,00. Berdasarkan hasil perhitungan angket respon guru terhadap lembar kerja peserta didik (LKPD) berbasis Discovery Learning menunjukkan bahwa respon guru sangat baik dengan presentase sebesar 86,6%. Dengan demikian LKPD berbasis Discovery Learning valid digunakan sebagai bahan pendukung pembelajaran dalam materi asam dan basa. Adapun sub materi yang digunakan dalam pengembangan LKPD ini yaitu konsep asam basa, sifat asam basa, dan indikator asam basa.
PENGEMBANGAN E-MODUL MULTI REPRESENTASI BERBASIS FLIP PDF CORPORATE EDITION PADA MATERI SIFAT ASAM BASA SENYAWA ORGANIK Andra Meisantry Assari; Rini Muharini; Maria Ulfah; Erlina Erlina; Ira Lestari
QUANTUM: Jurnal Inovasi Pendidikan Sains Vol 14, No 1 (2023): April 2023
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/quantum.v14i1.15135

Abstract

Mahasiswa menganggap materi asam basa senyawa organik sulit karena konsep yang abstrak dan memuat aspek multi representasi yaitu simbolik, mikroskopis dan makroskopis. Oleh sebab itu, suatu bahan ajar berupa e-modul multi representasi sangat diperlukan agar dapat membantu mahasiswa memahami materi tersebut. Tujuan penelitian ini untuk menentukan kelayakan, mengukur respon mahasiswa dan respon dosen terhadap e-modul multi representasi berbasis flip pdf corporate edition pada materi sifat asam basa senyawa organik. Jenis penelitian adalah Research and Development. Model pengembangan analysis, design, development, implementation and evaluation (ADDIE) yang digunakan dalam penelitian ini dibatasi hingga tahap pengembangan (development). Teknik pengumpulan data adalah teknik kuesioner. Instrumen penelitian yang digunakan adalah lembar penilaian kelayakan dan angket respon. Subjek penelitian adalah mahasiswa program studi Pendidikan Kimia FKIP Universitas Tanjungpura angkatan 2019 sebanyak 9 orang untuk uji coba kelompok kecil dan 30 orang untuk uji kelompok besar, serta dua orang dosen pengampu mata kuliah kimia organik. Hasil penelitian menunjukkan bahwa e-modul sangat layak dan respon yang sangat baik dari mahasiswa dan dosen. Kelayakan produk berdasarkan penilaian dan tanggapan dari para ahli. Respon mahasiswa dan dosen terhadap e-modul diukur menggunakan angket respon. Hasil penilaian kelayakan sebesar 93.3% pada aspek materi, 96.7% pada aspek bahasa dan 97.9% pada aspek kegrafikan. Persentase respon mahasiswa sebesar 88.5% pada uji kelompok kecil dan 89.8% pada uji kelompok besar, serta 86.1% pada uji respon dosen. Berdasarkan hasil yang diperoleh dapat disimpulkan bahwa e-modul multi representasi berbasis flip pdf corporate edition pada materi sifat asam basa senyawa organik dapat digunakan sebagai sumber belajar tambahan.
Co-Authors A.A. Ketut Agung Cahyawan W AA Sudharmawan, AA Ade Mirza Agung Hartoyo Agusta, Muhammad Farras Leonasa Ahmad Yani T Ahmad*, Mujahidin Aini, Zinnur Aisyah Nur Pratiwi Akrom, Akrom Al Gazali, Rifyal Ghaizi Amifelia, Hani Andi I. Harun Andi Ifriani Harun Andi Ifriani Harun Andi Ifriany Andra Meisantry Assari Anggraini, Yulia Angraini, Mega Restu anugrah, rifal arisdea tri putra Arniezca, Elginda Yusa Asradiah, Hayatun Bella Agustina Benny Yodi Berliana, Netty Cahyani, Melur Regista Claudina Marditha damayani, damayani Darunnafis, Moh. Khazani Destari, Helsa Ulfa Devina Siti Hafsah Dewanta, Yoga Wisnu Dewi Puspita Ismanida Djuniar R. Haristy Eka Kartina Eka Sofia Elistiani Elistiani Elpita, Elpita Eni Mayasari Eny Enawati Eny Enawati Eny Enawati Eny Enawaty Erlina ERLINA Erlina Erlina Erlina*, Erlina Ernawati F02111018, Ernawati Ersando Ersando Eva Putri Yulia Lestari, Eva Putri F17112030, Tasrifuddin Falah, Fajrul Febrianti F02111019, Febrianti Febriyanti, Nita Fia Tiaraseta Fitriani Fitriani Fitriati, Mariza Gerina, Febrilia Goreti, Claudiana Hafiz, Muhammad Iqbal Abdul hai rida Hairida Hairida Hanifa, Elsa Hartuti, Sugi Harun, Andi Ifriany Hendri, Petronius Hilman Hakiem Husna Amalya Melati Husna Amalya Melati Husna Amalya Melati Husna Amalya Melati* Ifriani, Andi Ifriany, Andi Ifriany, Andy Ikhwan Hamdani Irene Yudea Listra Istiani, Ratna Ayu Istiqomah Istiqomah istiqomah istiqomah Jati, Prameswara Wahyu jaya, Rikmal junaiddin aana, muhamad Juvitasari, Putri Maya Kartila, Desi Kinanti Kinanti, Kinanti Kristiawan, Wisnu Kusumawati, Ike Laili Fitri Yeni Lestari, Anggun lestari, nur asanti Lilis Ayu Lestari Maharani Nukila Mahendra, M. Rezha Mardila Anggela Maria Ulfah Maria Ulfah Marisa Marisa Mas riani Masriani . Maulani, Yasmin Melur Regista Cahyani Miranti, Maya Mohd Nizam, Dinna Nina Monica, Icha Monica, Qois Muhammad Farras Leonasa Agusta Nashrul Sasmita Maulidi, Nashrul Sasmita Novi Dwi Trisnawati Noviana, Rut Nur Desi Yani, Nur Desi Nur Hijriyati Nurhalimah, Risna Nurlailasari, Ratih Nurmasita, Nurmasita Nurpaisah, Nurpaisah Nurul Hasanah Nurul Hikmah Ocsaringga, Elga Pamungkasih, Restika Pasaribu, Revi Lestari Patya Mudira Mufti Akbar Pawestri, Nur Arneta Pingkan Ramadhan Sailendra Pisdon, Perezcky Paulus Pranata, Rio Purnamasari, Anisa Putri, Aprilianti Putriyani Putriyani Queiroz, Carla Cristina Rachmat Sahputra Rachmat Sahputra Rachmat Sahputra Rahmat Rasmawan Rahmatia, Sitti Rahmi, Fadila Rani, Yati Aisya Rikah Indriyani Rinarti, Sri Mulyo Rini Muharini Risya Sasri Riza Septiana Rody Putra Sartika RR. Ella Evrita Hestiandari Rudiyansyah Rusfamahira Rusfamahira Rusnani Rusnani Sahputra, Rahmat Sakur, Muhammad Salma saputra, silvino benny Sasri, Risya Sayak, Selly Marsela Ludovika Seilendra, Pingkan Ramadhan Selina, Selina Selvia L Sri Murniati, Sri Subekti, Abong Sulistiorini, Tri Suparti, Virgilia Dewi Suripto Syahputra, M. Aprilian Syamswisna , Syarif Muhammad Thaufik A., Syarif Muhammad Syarif, Kurnia Rahma Syuhaif Al Af Syah Tiara, Tiara Tulus Djunanto Tulus Junanto Tulus Junanto Ulwan, Rahmad Umah, Sofwatul Uray Rafika Siti Amalia Utami, Lutfi Ayu fadhilah Utami, Nurzam Indah Utin Pianita Sari Valencya Delima Sianipar Vita Oktavianty Wahilah Fitriani Warohmah, Mawaddatul Wati, Mila Karmila Wati, Satia Widoratih, Kristinawati Wildayati, Wildayati WOLLY CANDRAMILA Yenny Rahayu Yuningsih, Siti Zakaria, Andi