AR-RAZI Jurnal Ilmiah
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Published By Universitas Muhammadiyah Pontianak

2503-4448, 2302-7843

2021 ◽  
Vol 9 (2) ◽  
Author(s):  
Marina Ayu Sari ◽  
A. Ifriany Harun ◽  
Rahmat Rasmawan
Keyword(s):  

Penelitian ini bertujuan untuk mengetahui tingkat kelayakan dan respon peserta didik terhadap LKPD berbasis Inkuiri Terbimbing pada materi sel elektrolisis kelas XII IPA SMA Negeri 1 Sungai Kakap. Model penelitian ini menggunakan model pengembangan ADDIE yang dikembangkan oleh Dick and Carry. Pengambilan sampel menggunakan teknik purposive sampling pada siswa SMA Negeri 1 Sungai Kakap. Alat pengumpulan data yang digunakan adalah penilaian kelayakan dan lembar respon siswa. Hasil analisis data menunjukkan lembar kerja peserta didik berbasis inkuiri terbimbing dengan rata-rata nilai materi 93,82%, kelayakan kegrafikan 84,80%, kelayakan bahasa 94,00%. Respon siswa terhadap penilaian kelayakan dan uji respon peserta didik sebesar 90,87% dan 82,26% pada materi sel elektrolisis dengan kategori tinggi. Hasil penilaian kelayakan dan uji respon peserta didik terhadap LKPD berbasis Inkuiri Terbimbing pada materi sel elektrolisis dengan kategori sangat layak digunakan dalam proses pembelajaran.


2021 ◽  
Vol 9 (2) ◽  
Author(s):  
Alfina Mizriaty

Penggunaan pestisida adalah hal yang lumrah dilakukan oleh petani di Indonesia. Penggunaan pestisida bertujuan untuk membunuh hama pengganggu sehingga nantinya diharapkan hasil panen menjadi optimal. survey yang dilakukan di desa Sintung, Pringgarata Lombok Tengah menginformasikan bahwa petani selalu menggunakan pestisida selama masa tanam. Salah satu jenis pestisida yang digunakan adalah merk Decis 25 EC (golongan insektisida pyretroid) dengan bahan aktif deltametrin. petani di desa ini menggunakan pestisida tidak sesuai dengan takaran/dosis yang tertera pada kemasan. oleh karena penggunaan yang tidak sesuai takaran, peneliti merasa perlu untuk melakukan analisis laju disipasi insektisida deltametrin pada tanah sawah, karena tanah adalah objek kedua setelah tanaman yang akan terpapar oleh insektisida ini. dikhawatirkan apabila senyawa aktif ini mengendap terlalu lama di tanah, akan menyebabkan kematian serangga dan organisme bermanfaat yang hidup di ekosistem tersebut. Perlu diketahui bahwa laju disipasi adalah kecepatan suatu senyawa dapat terurai di lingkungan. Peneliti menggunakan 3 sampel, yaitu pada hari ke 0, 1 dan 3 setelah perlakuan diberikan (penyemprotan insektisida). Sampel yang diperoleh kemudian di bersihkan, diekstraksi dan kemudian dilakukan analisis dengan menggunakan GC-MS. Hasil kromatogram mengindikasikan adanya kandungan deltametrin pada sampel, yakni berturut-turut sebesar 6.53 ppm; 3.09 ppm and 1.51 ppm, dengan laju disipasi adalah 4 hari.


2021 ◽  
Vol 9 (2) ◽  
Author(s):  
Umi Khairah

Penelitian ini memiliki tujuan untuk menentukan pengaruh penggunaan model pembelajaran POE (Predict, Observe and Explain) terhadap hasil belajar pada mata pelajaran asam, basa dan garam di kelas VII. Menganalisis pengaruh penggunaan model pembelajaran POE terhadap hasil belajar pada kelas VII A dan VII B SMP Negeri 22 Pontianak sebagai sampel penelitian. Bentuk penelitian yang digunakan berupa eksperimen, jenis eksperimen yang digunakan adalah quasi experimental design. Berdasarkan observasi siswa cenderung pasif, kurang memperhatikan guru dan pelajaran berpusat pada guru. Berdasarkan penelitian yang dilakukan diperoleh nilai Effect Size sebesar 1,46. Karena Effect Size > 0,8 yaitu 1,46 > 0,8 maka Effect size tergolong tinggi dilihat dari kurva 0 ke Z penggunaan model pembelajaran POE memberikan pengaruh sebesar 42,79% terhadap peningkatan hasil belajar siswa di kelas VII A SMP Negeri 22 Pontianak.


2021 ◽  
Vol 9 (2) ◽  
Author(s):  
Elsye Apriliantika ◽  
Eny Enawati ◽  
Masriani Masriani ◽  
Husna Amalya Melati ◽  
Maria Ulfah

This research is based on the problems experienced in schools, namely the problems of the learning media used. This research uses a quasi-experimental form, namely a quasi-experimental design research and the design used is a non-equivalent control group design. This study was to determine the comparison of learning outcomes between classes using Focusky media and classes using PowerPoint media at SMP Negeri 21 Pontianak in Mixed Separation SubMaterial and to know the impact of using Focusky Media on the learning outcomes of seventh grade students at SMP Negeri 21 Pontianak. The research sample was 57 students consisting of 28 students in class VII B, namely the control class and 29 students in class D, the experimental class. Based on the results obtained, the value of the experimental class is greater than the control class. For statistical analysis, the pretest data used a t-test and showed that there were still differences in the pretest results in the two classes with a sig. (2- tailed) value of 0.001 so that the N-Gain test was carried out, obtained a value of 0.48 and was in the medium category. The effect size value shows a value of 46, 78, the results are categorized as moderate so that Focusky media-assisted learning is efficient in increasing student learning outcomes.


2021 ◽  
Vol 9 (2) ◽  
Author(s):  
Maya Mutiasari

Learning during the covid-19 pandemic requires adjustments, due to the implementation of the Circular Letter of the Ministry of Education and Culture number 4 of 2020 which makes teachers and students unable to meet directly to carry out the learning process but by conducting distance learning (PJJ). Distance learning (PJJ) can take place well, it requires a learning model that is in accordance with the material to be studied, so that students can learn well and remain creative. The purpose of this study is to determine the success rate of implementing the model Self Organized Learning Environments (SOLE) in distance learning, so that it can make students more creative in the application of Gay Lussac's law in everyday. This study uses method best practice with the steps of the SOLE model activity which has three stages of activity, namely asking questions, investigating and reviewing. Assessment is carried out to assess aspects of knowledge, skills and attitude assessment. From the results of the questionnaire, it was found that the Self Organized Learning Environments (SOLE) model was pleasant for 95% of students, increasing students' understanding of the material, which was 78.62%. Meanwhile, from the skill assessment, most of the students have been able to do the practicum well. From the results of the research that has been done, it can be concluded that there is an increase in the creativity of students in chemistry lessons.


2021 ◽  
Vol 9 (1) ◽  
Author(s):  
Pramesti Windu Anugraheni

This research aims to determine student responses to the supplements based on a scientific approach to the atomic structure material. Type of this research is Research and Development (R&D) by adapting the development steps by Borg & Gall model. The subject of this study was a supplement based on a scientific approach to the Atomic Structure Material which was tested on class X students at Taman Mulia Senior High School, SMA N 1 Sungai Raya and SMAS Indonesia Muda. Supplements based on a scientific approach to the atomic structure material received responses from students in the initial field responses test with excellent criteria (85,9%). And the main field response test with excellent criteria (90,4%). According to the students response test to the supplement based on a scientific approach to the Atomic Structure Material showed that the supplement was very feasible to be used as a learning suplement for Atomic Structure Material.


2021 ◽  
Vol 9 (1) ◽  
Author(s):  
Sri Nurabmi
Keyword(s):  

Penelitian ini bertujuan untuk menentukan tingkat kelayakan dan respon guru kimia terhadap instrumen penilaian kinerja peserta didik pada praktikum larutan elektrolit dan non elektrolit yang dikembangkan. Metode penelitian yang digunakan yaitu Penelitian dan pengembangan (R&D) model Borg & Gall. Subjek penelitian ini adalah instrumen penilaian kinerja peserta didik yang diuji cobakan kepada guru kimia di SMA Kecamatan Sambas. Instrumen penilaian kinerja peserta didik pada praktikum larutan elektrolit dan nonelektrolit yang dikembangkan menunjukan kategori sangat layak dengan persentase 87,31% ditinjau dari tiga aspek penilaian yaitu kelayakan isi, penyajian, dan bahasa. Respon guru kimia terhadap instrumen penilaian kinerja peserta didik pada uji lapangan awal menunjukkan kategori sangat baik (80,55%), dan pada uji lapangan utama menunjukkan kategori sangat baik (85,83%). Hasil penelitian ini menunjukan bahwa instrumen penilaian kinerja peserta didik pada praktikum larutan elektrolit dan nonelektrolit sangat layak dan dapat digunakan sebagai salah satu alat penilaian dalam kegiatan praktikum kimia materi larutan elektrolit dan nonelektrolit.


2021 ◽  
Vol 9 (1) ◽  
Author(s):  
Fazrul Aprilyani ◽  
Masriani Masriani ◽  
Lukman Hadi

This study aims to determine the feasibility of Pop-Up Book Media on Atomic Structure Material which was developed based on the results of expert tests (expert judgment). The form of this research is research and development (R&D) which adopts the Suyanto and Sartinem development model. The subject of this research is Pop-Up Book Media on Atomic Structure Material. The data collection technique uses indirect communication techniques. The assessment instrument used is in the form of a feasibility questionnaire. Media Pop-Up Book on Atomic Structure Material was validated by each of 3 experts in every aspect, namely, aspects of the feasibility of content, presentation, language and graphics. The results of data analysis show that the Pop-Up Book Media on the Atomic Structure Material developed is very suitable for use in learning in terms of content feasibility with a percentage of 85%, 88% presentation, 85.71% language, and 87.45% graphics with very high criteria.


2021 ◽  
Vol 9 (1) ◽  
Author(s):  
Andi - Rabuandika ◽  
Rody Putra Sartika ◽  
Rahmat Rasmawan

The presentation of teaching materials is not only limited to print media but already utilizes digital media, so it is necessary to develop a teaching material in the form of an electronic practicum worksheet using an application, namely the 3D PageFlip Professional application. This study aims to determine the feasibility of the 3D PageFlip Professional based Electronic Practicum Worksheet (e-LKP) in the Practical Basics of Analytical Chemistry through the results of validation and lecturer responses to the developed 3D PageFlip Professional-based Electronic Practicum Worksheet (e-LKP). The research and development method used leads to one of the Borg and Gall development models modified by Sugiyono. The research subjects involved consisted of experts (material experts, media experts, and linguists) and Analytical Chemistry Lecturers. The expert provides an assessment of the validity of the material, the suitability of the e-LKP design, conformance with Indonesian language rules, while the lecturer response test contains material aspects, language aspects, and media aspects of the 3D PageFlip Professional-based e-LKP developed by researchers. The results obtained are the feasibility of e-LKP based on 3D PageFlip Professional. Based on the expert's assessment, it is predicted that the feasibility level is very high with the percentage of content aspects (88.88%), presentation aspects (98.61%), language aspects (89.57%), and media aspects (90.83%). Meanwhile, the lecturers' response to the 3D PageFlip Professional-based e-LKP was (86.77%) with very high criteria.Keywords: Development, Electronic Practicum Worksheet, 3D PageFlip Professional, Basics of Analytical Chemistry.


2021 ◽  
Vol 9 (1) ◽  
Author(s):  
Nurdianti Awaliyah

Telah dilakukan pengamatan hasil pembuatan biodiesel dari minyak jelantah pada mata kuliah Teknologi Tepat Guna di Program Studi Pendidikan Kimia Fakultas Keguruan dan Ilmu Pendidikan Universitas Muhammadiyah Pontianak. Tujuan penelitian ini adalah agar mahasiswa mengetahui konsep dan cara pembuatan biodiesel dari minyak jelantah secara sederhana dengan cara mereaksikan minyak jelantah dan etanol/metanol serta bantuan katalis NaOH. Penelitian ini menggunakan metode penelitian eksperimen dimana setiap mahasiswa mempraktekkan secara sederhana pembuatan biodiesel dari minyak jelantah melalui reaksi transesterifikasi. Dari hasil pengamatan pembuatan biodiesel dari minyak jelantah secara sederhana, ditemukan pembuatan biodiesel dari minyak jelantah yang menggunakan metode refluks menghasilkan rata-rata volume akhir biodiesel sebesar 50 ml dan yang menggunakan metode pemanasan biasa menghasilkan rata-rata volume akhir biodiesel sebesar 30,3 ml.


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