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Implementasi Media Kartu Kwartet Cerita Indonesia pada Mata Pelajaran IPS Kelas V SD Patmawati, Mita; Sahari, Sutrisno; Salim, Nur
Pendekar: Jurnal Pendidikan Berkarakter Vol 7, No 2 (2024): Juli
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/pendekar.v7i2.24087

Abstract

Abstrak: IPS adalah salah satu pelajaran yang wajib dipelajari selama mengenyam pendidikan dasar. Untuk mempermudah jalannya proses pembelajaran diperlukan sebuah media. Kartu KWACI (Kwartet Cerita Indonesia) merupakan media pembelajaran IPS yang memuat materi faktor penjajahan. Penggunaan media yang tidak menghilangkan esensi dari permainan yakni, secara berkelompok dan mencari pasangan dari tiap-tiap kartu membuat rasa keingintahuan pada siswa tumbuh yang berakibat pada meningkatnya keaktifan siswa. Penelitian ini menggunakan metode R&D (Research and Development) dengan model pendekatan ADDIE (Analysis, Design, Development, Implementation, Evaluation). Sebelum media diterapkan dalam proses pembelajaran media telah diuji kevalidannya oleh ahli validator, hasil pengujian menghasilkan presentase akumulatif 92%. Hasil implementasi yang didapat berupa kepraktisan serta keefektifan dengan presentase kepraktisan 90% dan keefektifan akumulatif sebesar 85,8%. Presentase kepraktisan didapat berdasarkan angket respon guru sedangkan keefektifan didasarkan kepada tes. Hasil pengimplementasian media dapat menjadi tolak ukur bahwa media yang dikembangkan cocok untuk diterapkan di sekolah guna menunjang proses pembelajaran IPS.Abstract: Social studies is one of the lessons that must be learned during primary education. To facilitate the learning process, a medium is needed. KWACI (Indonesian Story Quartet) card is a social studies learning media that contains material colonization factors. The use of media that does not eliminate the essence of the game, namely, in groups and looking for pairs of each card makes curiosity in students grow which results in increased student activeness. This research uses the R&D (Research and Development) method with the ADDIE (Analysis, Design, Development, Implementation, Evaluation) approach model. Before the media is applied in the learning process, the media has been tested for validity by expert validators, the test results produce an accumulative percentage of 92%. The implementation results obtained in the form of practicality and effectiveness with a 90% practicality percentage and an accumulative effectiveness of 85.8%. The percentage of practicality is obtained based on the teacher response questionnaire while the effectiveness is based on the test. The results of implementing the media can be a benchmark that the media developed is suitable to be applied in schools to support the social studies learning process.
Investigating the Structure of Defects in Heterometallic Zeolitic Imidazolate Frameworks ZIF-8(Zn/Cd) and Its Interaction with CO2 Using First-Principle Calculations Pambudi, Fajar Inggit; Sutarno, Sutarno; Hatmanto, Adhi Dwi; Patmawati, Mita; Utari, Tika Dwi
Bulletin of Chemical Reaction Engineering & Catalysis 2024: BCREC Volume 19 Issue 2 Year 2024 (August 2024)
Publisher : Masyarakat Katalis Indonesia - Indonesian Catalyst Society (MKICS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.9767/bcrec.20136

Abstract

Inducing defect in metal-organic frameworks (MOFs) is one of the strategies to modify the structure and properties of this functional material. Defect may occur in a pristine MOF due to missing organic linkers, metal centres and/or other structural behaviours. In this study, the structure of defects in multicomponent MOFs especially heterometallic MOFs of zeolitic imidazolate framework (ZIF-8(Zn/Cd)) was examined to unveil the possible preference defect formation due to missing 2-methylimidazolate (MeIm) and metal centres of Cd2+ and Zn2+. Assuming defect formation due to the reaction between ZIF-8(Zn/Cd) and water, MeIm linker removal is energetically lower than removing metal centres of either Cd2+ or Zn2+. But, the MeIm linker is easier to be removed when it is connected to Cd2+ (Cd-MeIm-Cd) than when it is connected to Zn2+ (Zn-MeIm-Zn). Defect in ZIF-8(Zn/Cd) affects the band gap energy to give slightly lower value than it in pristine ZIF-8(Zn/Cd). Non-covalent interaction (NCI) and interaction region indicator (IRI) analyses were also performed to indicate possible intermolecular forces such as van der Waals and attractive forces present in non-defective and defective ZIF-8(Zn/Cd). The presence of defects in mixed-metal ZIF-8(Zn/Cd) was also tested for its potential use on CO2 adsorption. The interaction energy of CO2 inside defective ZIF-8(Zn/Cd) indicates an exothermic behaviour where CO2 molecule has a preference to be adsorbed inside the framework. This is especially when the capping agents at the defective ZIF-8(Zn/Cd) sites are removed to give open metal sites. This study provides insight how defects in multicomponent MOFs might presence affecting the structural and properties changes. Copyright © 2024 by Authors, Published by BCREC Publishing Group. This is an open access article under the CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0).