Articles
<![CDATA[Teacher Competence in Making Learning Media of ICT-Based PowerPoint-iSpring with Emphasis on Three Levels of Representation ]]>
<![CDATA[Minda Azhar]]>;
<![CDATA[Minda Azhar]]>
<![CDATA[ Pelita Eksakta Vol 4 No 1 (2021): Pelita Eksakta Vol. 4 No. 1 ]]>
Publisher : <![CDATA[Fakultas MIPA Universitas Negeri Padang ]]>
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DOI: 10.24036/pelitaeksakta/vol4-iss1/132
<![CDATA[The aim of the Community Partnership Program (PKM) service activity is to increase teacher competency in making learning media of ICT-based PowerPoint-iSpring with emphasis on three levels of representation. The method of PKM was lectures, demonstrations and workshops. The lecture and demonstration methods were used to deliver the topics i.e ICT and internet terminology, three levels representation and 21st century learning, making learning media of PowerPoint-iSpring, using Camtasia software. The practice includes quick tricks of editing images from ebooks, google image, video learning and transferring them to PowerPoint-iSpring learning media.Workshops were to make PowerPoint-iSpring media accompanied by videos of learning, animation of chemical, physical and biological concepts. This activity can improve the knowledge and skills of chemistry teachers using standard chemistry, physics and biology e-books, videos of learning and animation from internet. This community service activities can improve the knowledge and skills of chemistry teachers in integrating a variety of learning resources that can be used to create ICT-based PowerPoint-iSpring with emphasizing on three levels of representation]]>
<![CDATA[Enhancement of Teacher Knowledge in Making ICT-Based Chemistry Learning Media with emphasis on Three Levels of Representation ]]>
<![CDATA[minda - azhar]]>;
<![CDATA[Alizar - Ulianas]]>;
<![CDATA[Miftahul - Khair]]>;
<![CDATA[Hutdia Putri M]]>;
<![CDATA[Natia Afriana S]]>;
<![CDATA[zulhendra - Zulhendra]]>
<![CDATA[ Pelita Eksakta Vol 2 No 1 (2019): Pelita Eksakta Vol. 2 No. 1 ]]>
Publisher : <![CDATA[Fakultas MIPA Universitas Negeri Padang ]]>
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DOI: 10.24036/pelitaeksakta/vol2-iss1/40
<![CDATA[Abstract - The use of three levels of chemical representation and interconnection is needed to understand the chemical concepts as a whole. The purpose of service activities is to increase teacher knowledge in making ICT-based chemical learning media with emphasis on three level representation. The solution given is giving training to the teacher. In this training, were used lecture and demonstration methods and practices. The results of the service activities can improve the knowledge and skills of chemistry teachers using standard general chemistry e-books and chemistry learning videos on websites on the internet. This service activity can improve the knowledge and skills of chemistry teachers to integrate these learning resources for the manufacture of ICT-based chemistry learning media with an emphasis on interconnecting of three-levels representation. This service activity also increases teacher knowledge about mental models and how to measure them.]]>
<![CDATA[Guidance on Writing Proposals and Carrying Out Classroom Action Research (PTK) and Making PTK Reports in Article Form For High School Chemistry Teachers in Bukittinggi City ]]>
<![CDATA[Alizar Ulianas]]>;
<![CDATA[Minda Azhar]]>;
<![CDATA[Eka Yusmaita]]>;
<![CDATA[Miftahul Khair]]>;
<![CDATA[Yanti Fitria]]>;
<![CDATA[Hesty Parbuntari]]>;
<![CDATA[Watin Dehistora]]>;
<![CDATA[Yulia Mona Liza]]>
<![CDATA[ Pelita Eksakta Vol 3 No 2 (2020): Pelita Eksakta Vol. 3 No. 2 ]]>
Publisher : <![CDATA[Fakultas MIPA Universitas Negeri Padang ]]>
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DOI: 10.24036/pelitaeksakta/vol3-iss2/122
<![CDATA[Penelitian ini bertujuan untuk pengabdian kepada masyarakat dalam rangka bimbingan menulis proposal dan melaksanakan penelitian tindakan kelas (PTK) serta membuat laporan PTK dalam bentuk artikel bagi guru-guru kimia agar dapat dipublikasikan pada jurnal Nasioanl atau Internasional. Penelitian ini dilakukan di SMAN 1 Kota Bukittinggi selama 2 hari dengan jumlah peserta 13 orang guru kimia. Dalam pelaksanaan bimbingan ini dilakukan 4 metode. Pertama, metode ceramah ketika penyampaian materi; kedua, metode tanya jawab; ketiga, praktik pelaksanaan didampingi oleh tim ahli; keempat, diskusi untuk mengidentifikasi keberhasilan peserta. Sebelum dan sesudah kegiatan peserta diberikan angket mengenai keperluan peserta terhadap materi serta pemahaman peserta terhadap materi. Dalam kegiatan ini peserta dapat mengetahui permasalahan dikelas dan juga cara penelusuran artikel PTK secara online, metode dan Teknik penulisan artikel hasil PTK, teknik submit artikel hasil PTK kepada jurnal Nasional, serta penggunaan program Mendeley untuk mempermudah penulisan sitasi dan daftar pustaka pada artikel. Hasil pemahaman peserta sebelum penyampain materi dengan setelah penyampaian materi mengalami kenaikan yang signifikan yang ditandai dengan kenaikan jumlah pesrta yang paham. Dengan adanya bimbingan penulisan artikel dan penyusunan PTK ini memberikan motivasi kepada guru untuk membuat karya ilmiah berupa artikel hingga dapat dipublikasi.]]>
<![CDATA[EKSTRAKSI DAN KARAKTERISASI INULIN DARI UMBI DAHLIA (Dahlia sp.L) SEGAR DAN DISIMPAN ]]>
<![CDATA[Hevi Horiza]]>;
<![CDATA[Minda Azhar]]>;
<![CDATA[Jon Efendi]]>
<![CDATA[ EKSAKTA: Berkala Ilmiah Bidang MIPA Vol. 18 No. 01 (2017): Eksakta : Berkala Ilmiah Bidang MIPA (E-ISSN : 2549-7464) ]]>
Publisher : <![CDATA[Faculty of Mathematics and Natural Sciences (FMIPA), Universitas Negeri Padang, Indonesia ]]>
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DOI: 10.24036/eksakta/vol18-iss01/14
<![CDATA[Inulin is a natural polymer composed of monomers fructose, which is connected with the linear bonding ?-2,1-fruktosil-fructose. One source of inulin is the dahlia tubers (65.700%). The purpose of this study was to determine the water content, degree of purity inulin and how the value of the degree of polymerization inulin from dahlia tubers fresh and stored 4 weeks kinds of decorative strands formal crimson crown. This research was conducted experiments in Chemistry Research Laboratory UNP. The object of research was a kind of decorative dahlia tubers formal crimson obtained in the area of Aia Tawa, Kampung Batu nature, Solok. Inulin was characterized by using GC (Gas Chromatograpy) and HPLC(High-PerformanceLiquidChromtography). Determination of water content by using method of the AOAC(Associationof Official of Analytical Chemist).The results showed that the water content of dry weight percent (bk) inulin from dahlia tubers fresh is 2.123%, Inui figure is not much different than the inulin from dahlia tubers stored 4 weeks 2.003%. Based on the GC spectrum can be analyzed qualitatively that inulin extracted from dahlia tubers have a degree of polymerization of smaller than commercialinulin. Chicory Based on the spectrum of HPLC showed that inulin extracted from the tubers of dahlias has a purity level is almost the same as inulin commercial Chicory merck Fluka.]]>
<![CDATA[Pengembangan Modul Berbasis Inquiri Terstruktur Pada Materi Larutan Penyangga pada SMA/MA ]]>
<![CDATA[Diny Hazita Rahma]]>;
<![CDATA[Minda Azhar]]>
<![CDATA[ EDUKATIF : JURNAL ILMU PENDIDIKAN Vol 3, No 3 (2021): June Pages 631-1091 ]]>
Publisher : <![CDATA[Universitas Pahlawan Tuanku Tambusai ]]>
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DOI: 10.31004/edukatif.v3i3.512
<![CDATA[Berdasarkan Bahan ajar larutan penyangga di mata pelajaran kimia SMA kelas XI semester dua. Proses belajar saat ini memakai metode saintifik yang mampu diganti melalui berbagai model proses belajar salah satunya yaitu inkuiri terstruktur. Penelitian ini memiliki tujuan yakni mengembangkan modul larutan penyangga berbasis inkuiri terstruktur dan menguji validitas dan praktikalitas modul yang dikembangkan. Macam-macam penelitian merupakan studi dan penyempurnaan atau Research & Development (R&D). Model pengembangan yaitu model Four-D (4-D) yang terdiri dari empat langkah: define (pendefenisisan),design (perancanangan), develop (pengembangan) dan disseminate (penyebaran). Penelitian tersebut terbatas kepada langkah pengembangan. Instrumen penelitian yaitu lembar validasi dan praktikalitas. Modul tersebut sudah divalidasi melalui 5 validator. Praktikalitas modul telah dilakukan uji penelitian oleh 2 orang pengajar Kimia dan 16 murid kelas XI SMAN 1 Pangkalan. Data validitas dan praktikalitas dianalisa memakai formula Aiken’s V. Rata-rata Aiken’s V dari 5 orang validator adalah sejumlah 0,83 dengan kategori kevalidan tinggi dan uji praktikalitas guru dan siswa masing-masing 0,81 dan 0,82 dengan kategori kepraktisan tinggi. Hasil penelitian menunjukan bahwa modul larutan penyangga berbasis inkuiri terstruktur telah valid dan praktis ketika dipakai terhadap proses belajar-mengajar mata pelajaran kimia.]]>
<![CDATA[Pengembangan Lembar Kerja Peserta Didik (LKPD) Laju Reaksi Berbasis Inkuiri Terstruktur Kelas XI SMA ]]>
<![CDATA[Rosi Efliana]]>;
<![CDATA[Minda Azhar]]>
<![CDATA[ Edukimia Vol 1, No 2 (2019): Edukimia - Vol. 01, Issue 02 ]]>
Publisher : <![CDATA[Universitas Negeri Padang ]]>
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DOI: 10.24036/ekj.v1.i2.a45
<![CDATA[Learner Worksheet (LKPD) of reaction rates based structured inquiry in class XI SMA had been dertemine validity and practicality. The type of research used is Research and Development (R and D). The development model was a 4-D model consisting of 4 stages, namely (1) Define, (2) Design, (3) Develop, (4) Disseminate. The disseminate stage was not carried out due to time and cost constraints. The research instrument used was a questionnaire validation and practicality questionnaire. The validation questionnaire was filled by 3 chemistry lecturers from FMIPA UNP and 2 chemistry teachers from SMAN 2 Lubuk Basung. Practicality questionnaire was filled by 2 chemistry teachers and 30 students of class XII MIPA 3 SMAN 2 Lubuk Basung. Data were analyzed using kappa moments. The average kappa moment of validity test was 0.87 with a very high validity category. The average kappa moment of teacher were 0,88 with a very high practicality category. The average kappa moment of student were 0,87 with a very high practicality category. Thus, it was concluded that reaction rates LKPD based on structured inquiry was valid and practice.]]>
<![CDATA[Validitas dan Praktikalitas Modul Larutan Penyangga Berbasis Guided Discovery dengan Mengunakan Tiga Level Representasi Kimia untuk Kelas XI SMA ]]>
<![CDATA[Nadya Dewara]]>;
<![CDATA[Minda Azhar]]>
<![CDATA[ Edukimia Vol 1, No 1 (2019): Edukimia - Vol. 01, Issue 01 ]]>
Publisher : <![CDATA[Universitas Negeri Padang ]]>
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DOI: 10.24036/ekj.v1.i1.a10
<![CDATA[The 2013 curriculum requires teachers to use a scientific approach in teaching-learning process. The scientific approach is in accordance with the steps of various learning models, one of which is guided discovery. The study aimed at developing guided discovery modules on material buffer solutions for class XI SMA or MA and determining the validity and practicality of the developed modules. The research type was Research and Development. The development model was 4-D models that consists of four steps: define, design, develop, and disseminate. The research was limited to. The instrument of the research was questionnaire a form that consist of validity and practicality sheets. The module was validated by 5 validators and module practicality was examined by 2 chemistry teachers and 34 students of grade XI MIA 1 at SMAN 12 of Padang. Validity and practicality data were analysed by using the kappa Cohen formula. The moment kappa average of 5 validators was 0.90 with highest validity category. The moment kappa average of teachers and students were 0.8 and 0.86 spelling with the high category. The result of the research showed that the module of buffer solutions based on guided discovery with multiple representations was valid and practice to be used on the learning of chemistry.]]>
<![CDATA[LKPD Stoikiometri Berbasis Inkuiri Terstruktur dengan Tiga Level Representasi untuk Kelas X SMA ]]>
<![CDATA[Meni Lovia Melini]]>;
<![CDATA[Minda Azhar]]>
<![CDATA[ Edukimia Vol 1, No 3 (2019): Edukimia - Vol. 01, Issue 03 ]]>
Publisher : <![CDATA[Universitas Negeri Padang ]]>
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DOI: 10.24036/ekj.v1.i3.a74
<![CDATA[This type of study is research and development (R and D) with 4-D development model. The research was conducted until the validity and practical test of the development. This student worksheet validated by 5 people validators namely 3 chemistry lectures and 2 chemistry teachers from SMAN 1 Linggo Sari Baganti. Practicality questionnaire was filled by 29 students of class XI and 2 chemical teachers of SMAN 1 Linggo Sari Baganti. The result showed that validity test is 0,87 categorized very high. The kappa moment of practical test by 2 chemstry teacher is 0,78 categorized high. The kappa’s moment of 29 students SMAN 1 Linggo Sari Baganti was 0,81 with a high practicality category.]]>
<![CDATA[LKPD Bentuk Molekul Berbasis Inkuiri Terstruktur Dengan Menggunakan Pemodelan Tiga Dimensi ]]>
<![CDATA[Nurafni Nurafni]]>;
<![CDATA[Minda Azhar]]>
<![CDATA[ Edukimia Vol 1, No 3 (2019): Edukimia - Vol. 01, Issue 03 ]]>
Publisher : <![CDATA[Universitas Negeri Padang ]]>
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DOI: 10.24036/ekj.v1.i3.a75
<![CDATA[This study is research and development (R and D) and using 4-D models, but disseminate step is not done. Validation of student worksheets has been done by chemistry lecturers and chemistry teachers. The practicality of student worksheets has been done by chemistry teachers and students of 2nd grade of SMAN 1 Pariaman. The result showed that moment kappa average of validity was 0,83 with very high validity category and moment kappa average of practicality were 0,9 by chemistry teachers and 0,86 by students with very high category. Therefore student worksheets of molecular shape based on structured inquiry with emphasis on the submicroscopic level using 3-D models is valid and practice to be used on the chemistry learning.]]>
