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All Journal Jurnal Pengajaran MIPA Jurnal Pendidikan IPA Indonesia International Journal of Education Tadris: Jurnal keguruan dan Ilmu Tarbiyah Jurnal Pengajaran Matematika dan Ilmu Pengetahuan Alam Jurnal Riset dan Praktik Pendidikan Kimia Jurnal Matematika & Sains Jurnal Pendidikan MIPA Jurnal Tadris Kimiya Jurnal Penelitian Pendidikan Kimia International Journal of Science and Applied Science: Conference Series Unnes Science Education Journal Titian Ilmu: Jurnal Ilmiah Multi Sciences INKUIRI : Jurnal Pendidikan IPA Orbital: Jurnal Pendidikan Kimia Journal of Science Learning JURNAL EKSAKTA PENDIDIKAN (JEP) International Conference on Mathematics and Science Education of Universitas Pendidikan Indonesia Buletin Penelitian Tanaman Rempah dan Obat Journal of Educational Chemistry (JEC) JSEP (Journal of Science Education and Practice) Jurnal Pendidikan Sains Indonesia (Indonesian Journal of Science Education) JIPI (Jurnal IPA dan Pembelajaran IPA) Jurnal Pengabdian Isola Jurnal Riset dan Praktik Pendidikan Kimia

HERNANI -

Universitas Pendidikan Indonesia

Author-ID : 280739

Agriculture, Biological Sciences & Forestry Arts Humanities Astronomy Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Decision Sciences, Operations Research & Management Earth & Planetary Sciences Education Energy Environmental Science Immunology & microbiology Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mathematics Physics Social Sciences Other

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CHEMISTRY CONCEPTS IN NANOCELLULOSE ISOLATION AND ITS POTENTIAL FOR GREEN CHEMISTRY LEARNING Hernani, Hernani; Fauzi, Billy Oktora Abdillah; Mudzakir, Ahmad
Unnes Science Education Journal Vol 7 No 3 (2018): December 2018
Publisher : Department of Integrated Science, Faculty of Mathematics and Natural Sciences, Universitas Negeri Semarang in Collaboration with Perkumpulan Pendidikan IPA Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/usej.v7i3.25790

As a plant that is easy to grow, banana tree (Musa spp.) is an abundant tree in tropical countries. Banana tree is only able to bear fruit once in its lifetime and the waste of banana pseudo-stems are also existed in a large number. The cellulose content in the banana pseudo-stems can be utilized as a source of raw material for the manufacture of nanocellulose. This study aims to develop teaching strategy which introduce the process of nanocellulose isolation from banana pseudo-stem through a dissolve method using ionic liquid. The research method is the content analysis using the content validation format as the research instrument. The isolation process involves several school chemistry concepts as such as water evaporation, hydrolysis process, factors influencing reaction rate, intermolecular interaction, and colloid. Thus, this context has a potential to be integrated into school chemistry learning. Beside it, this context also has a potential to introduce the principles of green chemistry except catalysis principle.

CONSTRUCTION OF INTERGRATED SCIENCE LEARNING MATERIAL INTEGRATED TYPE TO DEVELOP STUDENTS SCIENTIFIC LITERACY Syam, Sri Rahmadani; Hernani, Hernani; Solihat, Rini
Unnes Science Education Journal Vol 8 No 3 (2019): December 2019
Publisher : Department of Integrated Science, Faculty of Mathematics and Natural Sciences, Universitas Negeri Semarang in Collaboration with Perkumpulan Pendidikan IPA Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/usej.v8i3.36433

Science learning in curriculum 2013 emphasizes to integrated learning approach that can improve the efficiency and effectiveness of learning and achievement of basic competencies. In addition, scientific literacy of junior high school students in Indonesian is low. Based on this, it is necessary to construction of integrated science learning materials. integrated science learning materials can be compiled by integrated type. The purpose of this research is to describe construction, determine the feasibility and effectiveness learning material. The research method used is Research and Development (R&D). Construction of learning materials refers to the 4-D development model that reduced into 3-D. Feasibility test using questionnaire whereas effectiveness of learning materials using objective test and questionnaire. The results showed that learning material is very feasible to used in limited test on average percentage of each aspect >76% whereas effectiveness of learning material showed that learning material can improve scientific literacy of student on probability value is (p) Sig = 0,000<a = 0.05 and average percentage of teacher and student response is 79.24 % and 80.90% with very good category. Thus, it is concluded that learning material very feasible to use in developing scientific literacy of student in the school.

Chemistry Learning via Distance Learning during the Covid-19 Pandemic Indah Sari; Parlindungan Sinaga; Hernani Hernani; Solfarina Solfarina
Tadris: Jurnal Keguruan dan Ilmu Tarbiyah Vol 5, No 1 (2020): Tadris: Jurnal Keguruan dan Ilmu Tarbiyah
Publisher : Universitas Islam Negeri Raden Intan Lampung

This research is a descriptive study that describes the learning of chemistry during the Covid-19 pandemic. The respondents in this study were 127 high school students from the West Java and Banten provinces. A Google Form questionnaire was used to collect the data. The results showed that the most widely used online class applications were WhatsApp Group feature, Google Classroom, and Zoom. Students also used printed textbooks, e-books, and student worksheets as learning media. Students did laboratory practice at home using easily found tools and materials. However, a small portion of the respondents ( 11 %) used materials purchased from a chemical store, and another small portion of the respondents ( 14 %) used virtual laboratories. They reported the results of their practice by making a laboratory practice report as well as through video activities and Microsoft PowerPoint for presentation. Students learn from home with varying durations. Most students experienced obstacles during the learning process so that they prefer learning face-to-face in class as usual. Therefore, the teacher must prepare a variety of strategies for distance learning so that the students can learn chemistry from home with fun. Some strategies that can be applied are providing audio-visual learning media or computer/android-based games for chemistry, using the online class application that accommodates interactions similar to face-to-face learning, providing laboratory practice using tools and materials that can be easily found around the house, providing virtual lab application, and providing more opportunities for students to ask questions about chemistry topics that they do not understand.

SCIENCE, ENGINEERING, AND TECHNOLOGY OF DYE SENSITIZED SOLAR CELLS: A DIDACTICAL DESIGN BASED ON TECHNOCHEMISTRY EDUCATION Ahmad Mudzakir; Hernani Hernani; Galuh Yuliani; Dian Mustikasari
Jurnal Tadris Kimiya Vol 5, No 2 (2020)
Publisher : Department of Chemistry Education, UIN Sunan Gunung Djati Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15575/jtk.v5i2.6741

This research was conducted to build a view of the nature of science and technology (VNoST) chemistry education students' ability through the didactical design reconstruction. The material taken is Dye-Sensitized Solar Cells (DSSCs) topic with technochemistry education model. It is a model that looked at education from the perspective of engineers and scientists who work not only on inquiry but also on a design perspective. Based on literature research, Indonesian students had low academic literacy performance as revealed in PISA (Program for International Student Assessment) study from 2000-2015. This problem can be caused by a weak teacher's abilities of the nature of science and technology (VNoST). This research's method is Research and Development (R&D) through the Model of Educational Reconstruction (MER). The instruments used were the VNoST questionnaire, interview guidelines, and content analysis guidelines. This study's subjects were 25 prospective chemistry education students in the 6th semester for pre-conception study and ten students for implementation study at one of State Universities in Indonesia. The didactical design of learning that has been developed had several advantages, including the prediction of student responses and the anticipation of educators as well as the essential material that is a barrier to student learning. Analysis of the VNoST understanding construction patterns is explored further so that the reasons that underlie students in defining science and technology and their relationship are obtained. The implementation study proved that understanding VNoST students after attending didactical design learning improved by changing students' views on science and technology to be more accurate.

PENGEMBANGAN ALAT UKUR PENILAIAN LITERASI SAINS PADA KONTEN STRUKTUR ATOM DAN IKATAN KIMIA MENGGUNAKAN KONTEKS WAYANG KULIT Aulia Rahim; Hernani Hernani; Ahmad Mudzakir
Jurnal Penelitian Pendidikan Kimia: Kajian Hasil Penelitian Pendidikan Kimia Vol 3, No 2 (2016)
Publisher : Chemistry Education Study Program Sriwijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36706/jppk.v3i2.8160

Pengembangan Alat Ukur Penilaian Literasi Sains pada Konten Struktur Atom dan Ikatan Kimia Menggunakan Konteks Wayang Kulit.Penelitian yang berjudul “Pengembangan Alat Ukur Penilaian Literasi Sains pada Konten Struktur Atom dan Ikatan Kimia menggunakan Konteks Wayang Kulit” ini bertujuan untuk memperoleh alat ukur penilaian literasi sains yang teruji validitas, reliabilitas, tingkat kesukaran, daya pembeda, keberfungsian distraktor serta korelasi antara butir soal dengan skor total yang menunjukkan validitas empirisnya. Metode yang digunakan adalah metode deskriptif kuantitatif dengan subjek penelitian siswa kelas XI MIA di salah satu SMA Negeri di Bandung untuk menguji reliabilitas dan analisis butir soal dengan menggunakan software Anates Versi 4.0.2. Validasi diukur menggunakan CVR (Content Validity Ratio) yang dilakukan kepada 5 dosen ahli yang kompeten di bidangnya. Dua orang ahli di bidang literasi sains, satu orang ahli di bidang evaluasi pembelajaran (assessment), satu orang ahli di bidang ikatan kimia, dan satu orang ahli di bidang kimia organik. Validitas yang dinilai berupa validitas konstruk yaitu kesesuaian indikator dengan kompetensi dasar dan kompetensi ilmiah PISA serta validitas isi berupa kesesuaian indikator dengan butir soal dan butir soal dengan jawaban. Dari hasil analisis CVR 40 butir soal, pada umumnya soal memiliki validitas isi dan konstruk yang dinyatakan valid dengan kategori reliabilitas yang tinggi, validitas empiris (korelasi skor butir dengan skor total) dikatakan valid, tingkat kesukaran meliputi soal mudah, sedang dan sukar dengan perlu perbaikan proporsi tingkat kesukaran, daya pembeda yang baik, dan ada distraktor yang berfungsi dengan baik namun adapula distraktor yang tidak berfungsi dengan baik sehingga diperlukan perbaikan.

The compatibility analysis of subject matter description with basic competence at science textbook for 7th grade of junior high school F Hidayat; P Sinaga; Hernani Hernani
International Journal of Science and Applied Science: Conference Series Vol 1, No 1 (2017): International Journal of Science and Applied Science: Conference Series
Publisher : Universitas Sebelas Maret

The aim of this research is to analyze the quality of science textbooks for 7th grade of Junior High School in Bandung City. This research use content analysis method and data analysis with quantitative descriptive analysis technique. The compatibility analysis of subject matter description with basic competence use instrument which adopted from the instrument of BSNP and based on three indicators, (1) completeness, (2) broadness, and (3) deepness. Completeness based on the presentation of subject matter, broadness based on the presentation of concept, definition, procedure, or example which support to the subject matter, and deepness based on subject matter explanation. The samples are one electronic textbook (BSE), be code in A and two non-electronic textbooks (non-BSE), be code in B and C. The samples selected by purposive sampling technique. Analysis result shows that the completeness of book A, B, and C are 100%, 96,15%, and 96,15% consecutively. The broadness of book A, B, and C are 100%, 88,46%, and 84,62% consecutively. The deepness of book A, B, and C are 92,31%, 88,46%, and 73,08% consecutively. So, book A (BSE) have better quality than book B and C (non-BSE).

Pengembangan Multimedia Interaktif Berbantuan Simulator HPLC untuk Meningkatkan Keterampilan Berpikir Analitis Mahasiswa Indah Karina Yulina; Anna Permanasari; Hernani Hernani; Wawan Setiawan
Titian Ilmu: Jurnal Ilmiah Multi Sciences Vol 14 No 1 (2022): January Edition
Publisher : Universitas Nurul Huda

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30599/jti.v14i1.1294

Tujuan penelitian ini adalah mengembangkan multimedia interaktif dengan memanfaatkan simulator HPLC untuk melatih keterampilan berpikir analitis mahasiswa yang akan mendukung aktivitas praktikum dry lab menjadi lebih bermakna. Metode penelitian adalah penelitian pengembangan dengan desain model 4-D, yaitu define, design, develop, dan disseminate. Instrumen yang digunakan dalam penelitian ini mencakup instrumen tes dan non tes berupa angket kepuasan mahasiswa dan observasi hasil pembelajaran. Hasil penelitian menunjukkan penggunaan MMI berbantuan simulator HPLC secara akademis membantu mahasiswa dalam meningkatkan motivasi dan minat mahasiswa mempelajari materi HPLC. Sejalan dengan itu, belajar dengan simulator HPLC dapat mengembangkan keterampilan berpikir analitik pada aspek matching dan classifying, analysis error, generalizing, dan specifying.

Development of Interactive Multimedia Assisted of The HPLC Simulator to Enhance Student's Analytical Thinking Skills Indah Karina Yulina; Anna Permanasari; Hernani Hernani; Wawan Setiawan
Journal of Educational Chemistry (JEC) Vol 3, No 2 (2021)
Publisher : Chemistry Education Department

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21580/jec.2021.3.2.7852

This research aims to develop interactive multimedia by utilizing HPLC simulators to train students' analytical thinking skills, which will support dry lab practicum activities to be more meaningful. The research method is development research with a 4-D model design, defining, designing, developing, and disseminating. However, this research stage is limited to the development stage. The instruments used in this study include test and non-test instruments in student satisfaction questionnaires and observation of learning outcomes. The results showed that MMI assisted by an HPLC simulator helped students increase students' motivation and interest in studying HPLC material. In line with that, learning with the HPLC simulator can develop analytical thinking skills in the matching and classifying aspects, but has not trained in 3 other aspects, namely error analysis, generalizing, and specifying. It is recommended to use a learning approach such as STEM, which accommodates learning needs with the stages of inquiry, Engineering Design Process, and Product development to overcome the lack of development of analytical thinking skills in the aspects of analysis error, specifying, and generalizing.

Pengembangan Model Rekonstruksi Pendidikan pada Bahan Ajar Sel Elektrokimia Berbasis Green Chemistry Eka Yusmaita; Ahmad Mudzakir; Hernani Hernani
JURNAL EKSAKTA PENDIDIKAN (JEP) Vol 1 No 1 (2017): JEP : Jurnal Eksakta Pendidikan
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/jep/vol1-iss1/37

This study aimed to analyze the construction of teaching materials which are relevant to daily life using the theme of green batteries. The method used the model of educational reconstruction as a framework. This model consisted of three components, which are: analysis of content structure, re-search on teaching and learning, and development of learning settings. The discussion in this study was focused only on the analysis of content structure which required three stages, they are: analysis of literature, clarification of basic context, and modification of the text. First stage would produce indi-cators and learning objectives for cognitive and affective domains, which were based on the content of electrochemistry cells, the context of Li-ion batteries, and the scientific literacy. Second stage was the elementarization process of elektrokimiaic cell content and Li-ion batteries context. Third stage was the process of insertion and abolition of original text to become basic text. Validation through expert judgments was conducted for indicators and learning objectives of cognitive and affective domains based on the Standard of Competence, Basic Competence and competencies in PISA 2009.

Pemahaman Siswa Kelas XI SMA Unggulan Kota Padang Terhadap Konsep Reaksi Pengendapan pada Pembelajaran Materi Kelarutan dan Hasilkali Kelarutan Monica Prima Sari; Hernani Hernani; Sri Mulyani
JURNAL EKSAKTA PENDIDIKAN (JEP) Vol 3 No 1 (2019): JEP : Jurnal Eksakta Pendidikan
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/jep/vol3-iss1/290

This paper describes 11th grade students’ understanding of the concept of precipitation reaction at the end of the learning process of solubility and solubility product. Precipitation reaction is an important reaction in industry, pharmacy, and daily life. In the learning process, students are asked to predict the formation of precipitation based on their understanding of solubility and solubility product concepts. Thirty eleventh grade students in one of the best senior high schools in Padang were chosen as the subject of this study. Classroom learning process was observed and recorded. Data of students’ understanding were collected through a set of essay problems which was validated through expert judgment, and then integrated in students’ end-of-chapter test. Through qualitative analysis, this study revealed some mistakes and misconceptions that students have regarding the application of precipitation reaction concept, and possible sources of them. Recommendations for improving the quality of learning this concept in the future are provided at the end of the paper

Co-Authors A. Mudzakir Abraham Mora Adi Aliyan Agustini, Nurlaela Ahmad Mudzakir Alfira Julian Pratiwi* Anak Agung Istri Sri Wiadnyani Anas Santria Andita Nur Sakinah Lili Budiarti Anna Permanasari Asep Supriatna Asep Suryatna Atep Rian Nurhadi Aulia Rahim Buchari Buchari Budiman Anwar Budiman Anwar Cece Nurhidayat Cecep Jaenudin Devi Pratiwi Sudrajat Dian Mustikasari Dwi Siti Hartinah Eny Ambarawati Elah Nurlaelah Eneng Saidatus Syadiah F Hidayat F. M. T. Supriyanti Fauzi, Billy Oktora Abdillah Fitri Khoerunnisa Fitri Khoerunnisa Fitri Khoirunnisa Fitria Nurdianti Galuh Yuliani Habiby, Iqbal Heli Siti Halimatul Hendrawan Hendrawan Ida Kaniawati Indah Sari Indah Sari Indra Tri Gunawan Iqbal Musthapa Monica Prima Sari Mr Buchari Mr Sumar Hendayana mulyani, Sri Muslim Muslim Nahadi Nurdiyanti, Dewi Omay Sumarna P Siahaan P Sinaga Parlindungan Sinaga Parlindungan Sinaga Purwanti purwanti Rini Solihat Rira Octa Ningsi* S. Mulyanti Siti Aisyah Siti Latifah Nata Siti Sriyati Soja Siti Fatimah Solfarina Solfarina Sri Mulyani Suci Rizki NA Suharyadi S.Pd. Susilawati, Aay Sutrasman Sutrasman Suwandi, Tri Syam, Sri Rahmadani Syifa Ayugea Salsabila T. R. Ramalis Tatit K. Bunasor, Tatit K. Titen Pinasti V A Tonjo Venessa, Devita Marlina Wahyu Eka Fath Dieni Wawan Setiawan Wawan Setiawan Wawan Setiawan Wiji Adji Wiwi Siswaningsih Yaya Sonjaya Yeni Setyowati* Yulina, Indah Karina Yusmaita, Eka Zackiyah Zackiyah

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