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All Journal Jurnal Pencerahan PENA SAINS Lantanida Journal Chimica Didactica Acta : Journal of Chemistry and Chemistry Education Jurnal Pendidikan Sains Indonesia (Indonesian Journal of Science Education) Jurnal Ilmiah Mahasiswa Kimia

Zulfadli Zulfadli

Universitas Syiah Kuala

Author-ID : 2514363

Agriculture, Biological Sciences & Forestry Arts Humanities Chemical Engineering, Chemistry & Bioengineering Chemistry Education Mathematics Physics Social Sciences Other

Published : 17 Documents Claim Missing Document

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Permasalahan dan Solusi Pendidikan di Daerah Kepulauan: Studi Kasus di SMA Negeri 1 Pulau Aceh, Kabupaten Aceh Besar M. Adlim; Helida Gusti; Zulfadli Zulfadli
Jurnal Pencerahan Vol 10, No 2 (2016): September 2016
Publisher : Majelis Pendidikan Daerah (MPD) Aceh dan Universitas Syiah Kuala

Educational problematic and the alternative solutions of Senior High School in rural-isolated-small Island have been studied. The subject school was located in small village in Pulau Nasi Island, about one hour sailing by small boat from the state capital, Banda Aceh, Indonesia. Data were collected based on structured interviews, questioners, direct observation and focus group discussion (FGD). The respondents were the school principal, teachers, students and representative community people as well as the Head of District Education Office. This study found that the subject school has C grade according to national education standard parameters and it has the lowest national examination score among senior high schools in the district. The majority of teachers (60%) do not stay on the isolated island and it caused the curriculum was not accomplished. Majority respondents said very often teachers were not in the classroom because they could not come to the island due to bad weather (high wave ocean) and other reasons. They came to the school only at their teaching hours and then back to the mainland so that their interaction time with the students was very limited. The characteristics of teachers who stay on the island are those who married or have relative with the local resident and temporary contracted teachers who are proposing to be hired as government permanent teachers. Majority teachers who already hold permanent job status stay on the mainland (city) and they prefer to take risk sailing to the island weekly rather than staying in the village. These phenomena do not occur in the bigger island (Simeulue) where is a district capital with town facilities. To overcome this problem, the majority respondents suggested several alternative solutions including improvement in the school management such as hiring new contracted teachers to replace current teachers who are not willing stay on the small island. The district education was also insisted to implement education regulation consistently

MACRONUTRIENT ANALYSIS OF ORGANIC FERTILIZER FROM THE MIXTURE OF Casuarina equisetifolia LEAF LITTER AND Ananas comosus RIND WASTE WITH EFFECTIVE MICROORGANISM BIOACTIVATOR Abdul Gani; Dinda Miftahul Jannah; Zulfadli Zulfadli
JURNAL PENA SAINS Vol 10, No 1 (2023): Jurnal Pena Sains
Publisher : Program Studi Pendidikan IPA, Fakultas Ilmu Pendidikan, Universitas Trunojoyo Madura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/jps.v10i1.17432

This study aims at analyzing macronutrients of organic fertilizer from the mixture of Casuarina equisetifolia leaf litter and Ananas comosus rind waste with effective microorganism bioactivator. Research on making and analyzing the nutrient content of organic fertilizers has been carried out using a mixture Casuarina equisetifolia leaf litter and Ananas comosus rind waste which consists of three variations of the composition with two repetitions. The process of making compost is conducted by mixing small pieces of pineapple litter and rind and mixed with effective microorganism (EM4) in a container. The composting process occurs for a maximum of 31 days based on the temperature measurement of the fertilizer. In the degree of acidity test using digital pH meter, it shows that the pH level is classified as acidic, the pH variations of the fertilizer P0U1, P0U2, P1U1, P1U2, P2U1, and P2U2 are 5.029 respectively; 5,026; 4,934; 4,047; 5,452; and 4,551. The results of the analysis of the elemental nitrogen content (%) of various fertilizers P0U1, P0U2, P1U1, P1U2, P2U1, and P2U2 were 0.27; 0.38; 0.39; 0.41; 0.36; and 0.39. The results of the C-organic element analysis (%) were 25.87; 29.12; 35.58; 30.77; and 29.66. The phosphorus content (%) obtained was 0.147; 0.137; 0.138; 0.136; 0.139; and 0.142. Potassium content (%) of 0.32; 0.25; 0.56; 0.78; 1.23; and 1.79. The C / N ratio of each fertilizer variation was sequential, namely 95.81; 76.63; 83.23; 86.78; 85.47; and 76.05. The analysis parameters for C, P, and K show conformity with the National standard provisions.

ANALYSIS OF STUDENTS' LEARNING DIFFICULTIES ON THE CONCEPT OF BUFFER SOLUTION USING FOUR-TIER MULTIPLE CHOICE DIAGNOSTIC TEST Muhammad Firdaus; Rusman Rusman; Zulfadli Zulfadli
Chimica Didactica Acta Vol 9, No 2: December 2021
Publisher : FKIP USK

This study aims to determine the level of students' understanding of each indicator of the buffer solution material and to determine the most difficult indicator in understanding the buffer solution material using the Four-Tier Multiple Choice diagnostic test. This type of research uses a descriptive type of research using a qualitative approach. The subjects of this study were students of class XI Madrasah Aliyyah Swasta Darul Ihsan as many as 15 students who were selected using the simple random sampling technique. The research instrument used was the Four-Tier Multiple Choice diagnostic test instrument sheet and student interview sheets. The results of this study showed that the average percentage of students who understood the concept was 32.3%, did not understand the concept was 38.1%, misconception was 20.6% and the error was 9%. Based on this research, it was found that the most difficult indicator to understand is the indicator to determine the relationship between the buffer solution and the concept of chemical equation and the indicator to calculate the pH of the acid buffer solution. So it can be concluded that the students of class XI Madrasah Aliyyah Private Darul Ihsan have difficulty in understanding the material of the buffer solution.

PENGEMBANGAN MEDIA PEMBELAJARAN PROGRAM SIMULASI EKSTRAKSI PELARUT DAN SPEKTROFOTOMETRI UV-VIS PADA LOGAM LANTANIDA MENGGUNAKAN EKSTRAKTAN 1-PHENYL-3-METHYL-4-BENZOYL-5-PYRAZOLONE BERBASIS MICROSOFT EXCEL Ibnu Khaldun; Zulfadli Zulfadli; Cut Rizka Ramadhana
Chimica Didactica Acta Vol 10, No 2: December 2022
Publisher : FKIP USK

Penelitian ini bertujuan untuk mengembangkan media pembelajaran program simulasi ekstraksi pelarut dan spektrofotometri UV-Vis pada logam lantanida menggunakan ekstraktan 1-phenyl-3-methyl-4-benzoyl-5-pyrazolone berbasis Microsoft Excel, serta menguji kelayakan dan tanggapan mahasiswa terhadap media yang dikembangkan. Jenis penelitian yang digunakan adalah penelitian dan pengembangan (RD), dengan tujuh langkah yaitu; (1) potensi dan masalah, (2) pengumpulan data, (3) desain produk, (4) validasi desain, (5) revisi desain, (6) uji coba produk, dan (7) revisi produk. Instrumen penilaian terdiri dari angket kelayakan media, angket tanggapan mahasiswa dan angket system usability scale (SUS). Penelitian dilakukan kepada 25 orang mahasiswa Jurusan Pendidikan Kimia Fakultas Keguruan dan Ilmu Pendidikan Universitas Syiah Kuala. Media yang diuji coba kepada mahasiswa telah divalidasi oleh validator dengan persen kelayakan sebesar 85,00% dan kategori sangat layak. Respons mahasiswa terhadap media ini sangat baik dengan rata-rata 88,35%, dan skor SUS yang didapat sebesar 85,30 dengan kategori dapat diterima, artinya program simulasi berbasis Microsoft Excel ini dapat digunakan untuk mensimulasi praktikum mengenai ekstraksi pelarut dan spektrofotometri UV-Vis pada logam lantanida menggunakan ekstraktan 1-phenyl-3-methyl-4-benzoyl-5-pyrazolone.

The Effect of Using Desktop Prezi Learning Media towards Student Learning Outcomes on Intermolecular Forces Raudhaton Nur; Latifah Hanum; Zulfadli Zulfadli
Chimica Didactica Acta Vol 10, No 2: December 2022
Publisher : FKIP USK

AbstractThe research, entitled “The Effect of Using Prezi Desktop Learning Media on Students Learning Outcomes on Intermolecular Force Material”, was conducted in class X IPA MAS Ulumul Qur’an Banda Aceh City. The purpose of this study was to analyze the affect of using Prezi learning media on learning outcomes, describe student learning activities and analyze student responses to Prezi learning media applied to intermolecular forces material. This study used a quantitative approach with a quasi-experimental type of research. The research instrument used in the form of test questions, student activity observation sheets and student response questionnaire sheets. Data analysis using t-test obtained t-count results were greater than t-table using a significant level of 0,05, namely 2,692 1,671, which means accepting Ha. The results of student activity observations obtained from student activity sheets in the experimental class of yhe first meeting were 81,77% in the active category and 96,59 in the very active category at the second meeting. Students responses to the use of Prezi media on is said to very good, with a percentage of 89,9%. Based on the data obtained, it can be concluded that there is an effect of using Prezi learning media on student learning outcomes on intermolecular forces material and can increase student learning activities and obtain a very good response from students on the use of desktop Prezi as a learning medium Keywords: Prezi Desktop, Intermolecular Forces, Learning Media, Learning Outcomes

DEVELOPMENT OF BULLETIN AS A LEARNING MEDIA ON ELECTROLYTE AND NON-ELECTROLYTE SOLUTION MATERIALS IN CLASS X MAS DARUL IHSAN ACEH BESAR Wildan Mabrura; Zulfadli Zulfadli; Latifah Hanum
Chimica Didactica Acta Vol 8, No 1 (2020)
Publisher : FKIP USK

This study aims to develop, analyze the feasibility and describe the responses of students and teachers according to the newsletter learning media on electrolyte and non-electrolyte solution material. This type of this research is (Research and Development/ RD). The newsletter learning media developed in this study according to ADDIE model which has five stages: (1) analysis, (2) design,(3) Development (4) Implementation and (5) Evaluation. This research was conducted at the school of MAS Darul Ihsan Aceh Besar with 3 chemistry teachers and 31 students taken from class X. The appropriateness of the newsletter media was assessed by the research supervisor. The percentage of teacher and student responses to the newsletter media that was developed was 97.22% and 83.97% with the very good category. Based on the results of the study, it can be concluded that the developed newsletter media is very suitable for use in the learning process of electrolyte and non-electrolyte solution materials.

DEVELOPMENT OF STUDENT WORKSHEETS BASED ON PEER LED TEAM LEARNING MODEL ON COLLOIDAL MATERIAL Zulfadli Zulfadli; Isyqa Silma; Habibati Habibati; Kana Puspita; Latifah Hanum; Rahmad Rizki Fazli
Lantanida Journal Vol 11, No 1 (2023)
Publisher : UIN AR-RANIRY

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22373/lj.v11i1.15704

To further improve achievement of the given learning objectives, chemistry learning requires instructional materials that encourage active engagement of students. The goal of this research was to create student worksheets based on Peer Led Team Learning (PLTL) on colloid material, to establish the validity of student worksheets based on PLTL on colloid material, and assess teacher and student responses to worksheets. PLTL based students on colloid material that has been developed. This research approach is known as research and development (R&D), and it is carried out utilizing the 4D model (define, design, develop, and disseminate). Purposive sampling was used for the sample technique. The study was carried out at four schools: MAN 3, SMAN 5, SMAN 12, and SMAN 15 Adidarma Banda Aceh. Validating the practicality of student worksheets and questionnaire responses from teachers and students were used to obtain data. This study obtained the following results: (1) validation of the feasibility of student worksheets by expert validators of 92.3% and based on the chemistry teacher's assessment of 86.5% in the very good or valid category; (2) results of the teacher's responses to the students' worksheets obtained a percentage of 88.1% in the very good category; and (3) results of the students'responses to the students' worksheets obtained a percentage of 79.9% in the good category. Based on the findings, it is possible to infer that the student worksheet based on PLTL on colloid material is appropriate for use as teaching material on colloid material.

Pengembangan Aplikasi Pembelajaran Interaktif Berbasis Android untuk Membantu Mahasiswa dalam Mempelajari Materi Larutan Elektrolit dan Nonelektrolit Muhammad Nazar; Zulfadli Zulfadli; Anggi Oktarina; Kana Puspita
Jurnal Pendidikan Sains Indonesia Vol 8, No 1 (2020): APRIL 2020
Publisher : Universitas Syiah Kuala

Di era digital dimana pertumbuhan teknologi melaju pesat dan dinamis, peserta didik harus didorong untuk mengikuti tren perilaku belajar yang memanfaatkan perangkat teknologi yang lebih dikenal dengan technological pedagogical content knowledge (TPACK). Oleh karena itu, pendidik harus mengambil peran penting dalam menyampaikan pengetahuan melalui pemanfaatan teknologi seluler seperti smartphone. Penelitian ini bertujuan untuk mengembangkan aplikasi pembelajaran interaktif yang memadukan game, kuis, dan video pada materi larutan elektrolit dan nonelektrolit, dan menguji usabilitas penggunaan aplikasi di universitas. Penggunaan aplikasi yang diberi nama E-lite ini tidak hanya mengakomodasi pengetahuan dari konsep yang ditargetkan tetapi juga mencakup permainan, multimedia dan uji kemampuan diri yang memungkinkan peserta didik untuk meningkatkan motivasi belajar mereka dalam mempelajari kimia. Pengukuran kemudahan penggunaan aplikasi dan umpan balik pengguna terhadap aplikasi ini melibatkan 50 orang mahasiswa Program Studi Pendidikan Kimia Universitas Syiah Kuala sebagai responden yang dipilih berdasarkan teknik proportional stratified random sampling. Kepada mahasiswa diberikan angket system usability scale (SUS) yang berisi 10 pertanyaan. Hasil pengujian menunjukkan bahwa skor usabilitas mencapai 85,95%, sedangkan validitas konten memiliki nilai 96,3% dan validitas aplikasi adalah sebesar 83%. Oleh karena itu, aplikasi ini secara umum dinyatakan valid dan dapat digunakan sebagai media pembelajaran untuk konsep larutan elektrolit dan nonelektrolit pada tingkat perguruan tinggi atau universitas.

KELAYAKAN PENGGUNAAN MEDIA BULETIN PADA MATERI TEORI ASAM BASA DI SEKOLAH SMAN 1 SIGLI Zulfadli Zulfadli; Dian Novita Sari; Sri Winarni
Jurnal Ilmiah Mahasiswa Pendidikan Kimia Vol 7, No 1 (2022)
Publisher : Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar

Telah dilakukan penelitian yang berjudul Kelayakan Penggunaan Media Buletin pada Materi Teori Asam Basa di Sekolah SMAN 1 Sigli yang bertujuan untuk: (1) Mengembangkan media pembelajaran buletin yang dapat digunakan sebagai media belajar pada materi teori asam basa, dan (2) Menganalisis kelayakan media pembelajaran buletin pada materi teori asam basa. Media buletin pada materi teori asam dan basa yang dihasilkan/dikembangkan melalui metodeRDmenggunakan model pengembanganFour-D Model(4D) melalui beberapa tahap yaitu: tahap mendefinisikan (define), tahap merancang (design) dan tahap mengembangkan (develop). Hasil validasi buletin kimia materi teori asam-basa oleh validator dan guru masing-masing memiliki nilai kelayakan sebesar 97.11% dan 90,38% yang keduanya masuk dalam kategori sangat layak. Hal ini menunjukkan bahwa buletin yang dikembangkan layak untuk digunakan sebagai bahan ajar dalam proses pembelajaran.

KARAKTERISASI ARANG DARI LIMBAH DAPUR BATU BATA MERAH TERHADAP UJI MUTU ARANG AKTIF Nurul Akmal; Zulfadli Zulfadli; Muhammad Nasir
Jurnal Ilmiah Mahasiswa Pendidikan Kimia Vol 7, No 1 (2022)
Publisher : Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar

Limbah arang akasia(acacia mangium)yang terdapat pada pembakaran batu bata dapat dijadikan arang aktif yang bernilai ekonomis dan dapat mengurangi penumpukan limbah biomassa. Penelitian ini bertujuan untuk menguji mutu arang aktif berdasarkan SNI06-3730-1995. Limbah arang akasia diambil dari salah satu pembakaran batu bata di Desa Tanjung Selamat Aceh Besar. Sampel diaktivasi dengan uap air menggunakanautoclavepada tekanan 1,5 atm suhu 125selama 30 menit dan aktivasi arang dengan larutan HCl 0,2M selama 24 jam. Karakterisasi arang akasia berdasarkan parameter uji yaitu kadar air, kadar abu, kadar zat terbang, kadar karbon, daya serap iodium dan daya serap metilen biru dengan ukuran arang 100 mesh. Hasil penelitian menunjukkan hampir semua parameter memenuhi SNI06-3730-1995. Karakterisasi arang yang diaktivasi dengan HCl diperoleh daya serap metilen biru lebih baik daripada aktivasi uap air dan tanpa aktivasi. Namun, hasil uji yang tidak sesuai SNI yaitu daya serap iodium dan kadar zat terbang. Berdasarkan hasil analisis dapat disimpulkan bahwa arang aktif dari limbah kayu akasia dapat dijadikan adsorben dalam menyerap zat warna metilen biru.

Co-Authors . aristia . martunis Ade Ismayani Anggi Oktarina Arisna Maulina Cut Rizka Ramadhana Dian Novita Sari Dinda Miftahul Jannah Gani, Abdul Habibati Habibati Helida Gusti Ibnu Khaldun Ibnu Khaldun Ibnu Khaldun Ilyana Simehatte Isyqa Silma Kana Puspita Latifah Hanum M. Adlim Meri Hardina Muhammad Firdaus Muhammad Nasir Nabilla Tsamarah Nurul Akmal Rahmad Rizki Fazli Raudhaton Nur Rusman, Rusman Sri Winarni Wildan Mabrura Yunita Sari

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