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All Journal Hydrogen: Jurnal Kependidikan Kimia BIO-EDU: Jurnal Pendidikan Biologi Bioscientist : Jurnal Ilmiah Biologi Empiricism Journal Educatoria : Jurnal Ilmiah Ilmu Pendidikan Journal of Authentic Research
Safnowandi, Safnowandi
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemistry Earth & Planetary Sciences Education Environmental Science Immunology & microbiology Languange, Linguistic, Communication & Media Mathematics Public Health Social Sciences Other

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KARAKTERISASI KARBON BAGGASE TERAKTIVASI DAN APLIKASINYA UNTUK ADSORPSI LOGAM TEMBAGA Indah, Dahlia Rosma; Safnowandi, Safnowandi
Hydrogen: Jurnal Kependidikan Kimia Vol 7, No 2 (2019): Hydrogen: Jurnal Kependidikan Kimia
Publisher : IKIP Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/hjkk.v7i2.1912

Abstract

Bagasse is waste produced from the process of milking or extracting sugarcane stems. Baggase can be optimized in terms of use value and its function as an alternative technology, namely as an active carbon manufacturing material that can be used as a copper (Cu) adsorbent. This study discusses the functional baggase activated carbon group of phosphoric acid and nitric acid using Fourier Transform Infra Red (FTIR) and its application as a copper metal adsorbent in silver craft waste in Ungga Village, Praya, Central Lombok. The production of activated bagasse carbon consists of three stages, namely first dehydration by burning bagasse until it turns into carbon, the second carbonation is heating at 500ºC, carbon results are 100-200 mesh and third, activation by soaking 50 grams of carbon in 500 mL of 20% phosphoric acid and 20% nitric acid for 12 hours. After that the carbon is dried at 110ºC and finally heated at 500ºC for 1 hour. The bagasse carbon that has been made is put into 25 mL of waste water sample with a mass of 2 grams of adsorbent. Samples were then stirred at 30, 60, 90, 120 and 150 minutes contact time variations at a speed of 180 rpm using a batch system. The optimum contact time that is used to calculate the efficiency of copper metal content reduction is by calculating the difference in the metal content of copper metal before it is adsorbed and after it is adsorbed using activated carbon baggase. Concentrations of all copper metals were analyzed using Atomic Absorption Spectrophotometer (AAS). Identification using FTIR spectrophotometer shows that carbon baggase in this study contains functional groups C = O, C = C, C-C, N = O, C = N, C-OH, CH2 and C-H. From the research it was found that the copper metal content in the sample was 14.5710 ppm. The optimum contact time on copper metal adsorption is at 120 minutes contact time which results in optimum adsorption efficiency on copper metal that is 84.88%. Activated carbon baggase is an effective adsorbent to reduce levels of copper metal in silver craft waste.
Pengaruh Model Pembelajaran Contextual Teaching and Learning (CTL) Terhadap Hasil Belajar Kognitif dan Literasi Sains Siswa Safnowandi, Safnowandi
BIO-EDU: Jurnal Pendidikan Biologi Vol 6 No 1 (2021): BIO-EDU: Jurnal Pendidikan Biologi Volume 6 Nomor 1 Tahun 2021
Publisher : Jurusan Pendidikan Biologi, Fakultas Ilmu Pendidikan, Universitas Timor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32938/jbe.v6i1.831

Abstract

The objectives of this research are to: 1) determine the effect of the Contextual Teaching and Learning (CTL) learning model on cognitive learning outcomes; and 2) to determine the effect of the Contextual Teaching and Learning (CTL) learning model on students' scientific literacy. This type of research is a quasi experiment. The research design of pre-test-post-test non equivalent control group design. The population in this study were all class VII students of SMPN 1 Tanjung North Lombok Regency in the academic year 2017/2018 which consisted of 6 classes. The sampling technique used purposive sampling, in order to obtain class VII 3 as the experimental class and class VII 1 as the control class. The instruments used to collect data were multiple choice questions totaling 20 items to measure student cognitive learning outcomes and essay questions to measure content and the scientific context. Meanwhile, worksheets are used to measure the scientific process. The data analysis technique used two-way ANOVA with a significance level of 0.05% using SPSS 16 for Windows. The results showed that: 1) there was an effect of the application of the Contextual Teaching and Learning (CTL) learning model on cognitive learning outcomes (p <0.05); and 2) there is an effect of the Contextual Teaching and Learning (CTL) learning model on students' scientific literacy (p <0.05).
Pengaruh Model Pembelajaran Student Teams Achievement Division (STAD) terhadap Motivasi dan Hasil Belajar Kognitif Siswa Ariningsih, Ni Luh Tuti; Fitriani, Herdiyana; Safnowandi, Safnowandi
Educatoria : Jurnal Ilmiah Ilmu Pendidikan Vol. 3 No. 4 (2023): October
Publisher : Lembaga Pendidikan, Penelitian, dan Pengabdian Kamandanu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36312/educatoria.v3i4.214

Abstract

The Student Teams Achievement Division (STAD) learning model is all student learning activities to improve existing abilities or improve new abilities, both abilities in the aspects of knowledge, attitudes and skills. These learning activities are carried out in group activities, so that participants can learn from each other through exchanging thoughts, experiences and ideas. The aim of the research was to determine the effect of the Student Teams Achievement Division (STAD) learning model on the motivation and cognitive learning outcomes of class XI Science students at SMA Negeri 7 Mataram. This type of research is quasi-experimental using two classes, namely the experimental class and the control class. The research design is pretest-posttest control group design. The research results showed that the learning motivation of experimental class and control class students was in the high category. This can be seen from the average value of motivation results for the experimental class of 73.90% and the average value of motivation results for the control class of 72.45%. From this data it can be seen that the motivation results of the experimental class are higher than the control class. Meanwhile, students' cognitive learning outcomes were obtained by hypothesis testing, where p = 0.000 < 0.05 significance level, so the hypothesis was accepted, namely that there was an influence of the Student Teams Achievement Division (STAD) learning model on students' cognitive learning outcomes.
Meningkatkan Hasil Belajar Siswa SMP Negeri 2 Gunungsari Melalui Penerapan Model Pembelajaran Guided Discovery Learning Inna, Marcelya; Safnowandi, Safnowandi; Armiani, Sucika
Educatoria : Jurnal Ilmiah Ilmu Pendidikan Vol. 4 No. 2 (2024): April
Publisher : Lembaga Pendidikan, Penelitian, dan Pengabdian Kamandanu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36312/educatoria.v4i2.270

Abstract

Education is an effort made to achieve a certain goal. Through these efforts, it is hoped that students can increase their knowledge and explore the potential they have, so that it can be useful for themselves and others. The aim of this research is to determine student learning outcomes through the application of the guided discovery learning model. The type of research used is qualitative descriptive research. This research design is a one shot case study. The population in this study were class VII students of SMP Negeri 2 Gunungsari. The sample used in this research was class VIIA and VII B of SMP Negeri 2 Gunungsari. The instrument used in this research is a learning outcomes test sheet. In this research, the type of test used was a multiple choice form with 4 answer choices. One correct answer and three wrong answers, the score for each question is one if correct and zero if incorrect. The data analysis techniques used are individual and classical completeness and indicator completeness. Based on the research data, it can be stated that of the 10 indicators tested in the pretest, all indicators had an average percentage of completeness of 13.4%, while in the posttest all indicators had an average percentage of completeness of 64.5%. Thus it can be concluded that the application of the Guided Discovery Learning (GDL) model can improve student learning outcomes. This is because this learning can invite students to play an active role, students are able to interact, collaborate with their group friends, and involve the students' initial abilities.
Penerapan Asesmen Kinerja Pada Kegiatan Praktikum Biologi Untuk Meningkatkan Keterampilan Proses Sains dan Hasil Belajar Kognitif Siswa Purnawati, Purnawati; Fatmawati, Any; Safnowandi, Safnowandi; Murdiyah, Siti
Empiricism Journal Vol. 1 No. 1: June 2020
Publisher : Lembaga Penelitian dan Pemberdayaan Masyarakat (LITPAM)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36312/ej.v1i1.603

Abstract

Tujuan dari penelitian ini adalah untuk mendeskripsikan penerapan asesmen kinerja dalam meningkatkan keterampilan proses sains dan hasil belajar kognitif siswa kelas VII MTs Darul Hikmah Darek. Subjek penelitian ini adalah 20 siswa kelas VII MTs Darul Hikmah Darek. Penelitian ini merupakan penelitian tindakan kelas (PTK) dengan menggunakan dua siklus. Data keterampilan proses sains dikumpulkan menggunakan instrument lembar observasi, sedangkan hasil belajar kognitif siswa dikumpulkan menggunakan instrument tes dengan 20 item soal. Keterlaksanaan pembelajaran juga diukur dalam penelitian ini menggunakan lembar observasi keterlaksanaan (RPP). Data penelitianian dianalisis secara deskriptif. Hasil penelitian menunjukkan (1) keterlaksanaan RPP pada siklus I mencapai 68% dengan kategori baik, sedangkan pada siklus II mencapai 100% dengan kategori sangat baik; (2) keterampilan proses sains pada siklus I mencapai 55% dengan kategori cukup tinggi, dan pada siklus II mencapai 75% dengan kategori tinggi; dan (3) skor rata-rata hasil belajar kognitif siswa pada siklus I mencapai 66 dengan ketuntasan klasikal sebesar 40%, sedangkan siklus II mencapai 77 dengan ketuntasan klasikal sebesar 90%. Berdasarkan hasil penelitian dapat disimpulkan bahwa penerapan asesmen kinerja dapat meningkatkan keterampilan proses sains dan hasil belajar kognitif siswa pada kelas VII MTs Darul Hikmah Darek. The Implementation of Performance Assessment in Biology Practicum Activities to Improve Students' Science Process Skills and Cognitive Learning Outcomes Abstract The purpose of this study was to describe the implementation of performance assessment in improving science process skills and cognitive learning outcomes of seventh grade students of MTs Darul Hikmah Darek. The subjects of this study were 20 grade VII students of MTs Darul Hikmah Darek. This research is a classroom action research (CAR) using two cycles. Science process skills data were collected using an observation sheet instrument, while students' cognitive learning outcomes were collected using a test instrument with 20 items of questions. The implementation of learning was also measured in this study using the implementation observation sheet (RPP). The researcch data were analyzed descriptively. The results showed (1) the implementation of the lesson plans in the first cycle reached 68% in the good category, while in the second cycle it reached 100% in the very good category; (2) science process skills in the first cycle reached 55% in the fairly high category, and in the second cycle it reached 75% in the high category; and (3) the average score of students' cognitive learning outcomes in the first cycle reached 66 with classical completeness of 40%, while the second cycle reached 77 with classical completeness of 90%. Based on the results of the study, it can be concluded that the implementation of performance assessments can improve science process skills and cognitive learning outcomes of students in class VII MTs Darul Hikmah Darek.
Indeks Keanekaragaman Kepiting (Scylla Sp) di Pantai Cemara sebagai Dasar Penyusunan Petunjuk Praktikum Ekologi Hamidi, Ilham; Safnowandi, Safnowandi; Khairiyah, Ummu
Journal of Authentic Research Vol. 3 No. 2 (2024): July
Publisher : LITPAM

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36312/jar.v3i2.2107

Abstract

Penelitian ini mengevaluasi keanekaragaman hayati kepiting bakau (Scylla sp.) di kawasan mangrove Pantai Cemara, Lombok Barat, dan menyusun petunjuk praktikum ekologi berdasarkan hasilnya. Penelitian dilakukan di tiga stasiun dengan kondisi lingkungan berbeda, mengidentifikasi empat spesies Scylla dengan total 140 individu: Scylla serrata (47 individu), Scylla tranquebarica (44 individu), Scylla paramamosain (30 individu), dan Scylla olivacea (19 individu). Indeks keanekaragaman Shannon-Wiener menunjukkan keanekaragaman sedang di Stasiun I (H' = 1,217), Stasiun II (H' = 1,294), dan Stasiun III (H' = 1,326), yang mencerminkan stabilitas ekosistem mangrove namun mengindikasikan perlunya konservasi. Hasil penelitian juga digunakan untuk mengembangkan petunjuk praktikum ekologi, yang divalidasi dengan rerata skor 85% (sangat valid) untuk isi, 77% (valid) untuk bahasa, 68% (valid) untuk tampilan, dan 92% (sangat valid) untuk keterbacaan. Petunjuk ini dirancang untuk meningkatkan pemahaman mahasiswa tentang keanekaragaman hayati mangrove dan relevansinya dalam konservasi. Dengan menggunakan data lokal, petunjuk praktikum ini diharapkan dapat menghubungkan teori dengan aplikasi praktis di lapangan serta mendorong keterlibatan aktif dalam upaya pelestarian lingkungan. Diversity Index of Crabs (Scylla Sp) at Cemara Beach as a Basis for Developing an Ecology Practicum Guide Abstract This study evaluates the biodiversity of mangrove crabs (Scylla sp.) in the mangrove ecosystem of Cemara Beach, West Lombok, and develops an ecology practicum guide based on the results. Conducted at three stations with varying environmental conditions, the study identified four Scylla species totaling 140 individuals: Scylla serrata (47 individuals), Scylla tranquebarica (44 individuals), Scylla paramamosain (30 individuals), and Scylla olivacea (19 individuals). The Shannon-Wiener diversity index indicated moderate biodiversity at Station I (H' = 1.217), Station II (H' = 1.294), and Station III (H' = 1.326), reflecting ecosystem stability but also highlighting the need for conservation efforts. The study's findings were used to develop an ecology practicum guide, validated with an average score of 85% (highly valid) for content, 77% (valid) for language, 68% (valid) for visual presentation, and 92% (highly valid) for readability. This guide is designed to enhance students' understanding of mangrove biodiversity and its relevance to conservation. By utilizing local data, the practicum guide is expected to bridge theory with practical field applications and promote active engagement in environmental conservation efforts.
Validitas Petunjuk Praktikum Ekologi Perairan dalam Pembelajaran Mahasiswa Safnowandi, Safnowandi
Educatoria : Jurnal Ilmiah Ilmu Pendidikan Vol. 4 No. 4 (2024): October
Publisher : Lembaga Pendidikan, Penelitian, dan Pengabdian Kamandanu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36312/educatoria.v4i4.317

Abstract

This research aims to measure the extent to which practical instructions meet the validity criteria for use in learning aquatic ecology. This type of research is development research. The research instrument used was a validation sheet. The data collection technique uses validation. The data analysis technique uses percentage techniques. The research results showed that the validation results from content/material experts were 80% in the very good category, display experts were 87% in the very good category, and language experts were 90% in the very good category, so that the average value of the validation test results was obtained. aquatic ecology practicum instruction expert by 85%. With these results, the practical instructions that have been prepared are in the very good category and do not need to be revised.
Pengembangan Modul Sistematika Cryptogamae: Keanekaragaman Jenis Rumput Laut Di Dusun Labuhan Terata Mursali, Saidil; Saputra, Erwin; Safnowandi, Safnowandi
Bioscientist : Jurnal Ilmiah Biologi Vol 12, No 2 (2024): December
Publisher : Department of Biology Education, FSTT, Mandalika University of Education, Indonesia.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/bioscientist.v12i2.13978

Abstract

This study aims to develop a Sistematika Cryptogamae module based on research findings on the diversity of seaweed species in the waters of Dusun Labuhan Terata, Sumbawa Regency, West Nusa Tenggara. The research was conducted using a development method that refers to the ADDIE Model by Reiser and Mollenda, which includes Analysis, Design, Development, Implementation, and Evaluation. This study is limited to the Development stage. The research instruments are validation sheets and readability questionnaires. Data analysis is conducted using a descriptive quantitative approach. The validity test results of the Sistematika Cryptogamae module reached 86.6%, categorized as highly feasible. In addition, the readability test results reached 84.4%, categorized as easy to understand. This module was developed using a research-based approach and local environmental context to meet the needs of contextual education. It is expected to enhance students' understanding of the diversity of lower-level plants, particularly seaweed, and to foster awareness of marine ecosystem conservation. This research also contributes to the documentation of biodiversity and the sustainable management of seaweed resources. The conclusion of this study is that the Cryptogamae Systematics module developed is deemed highly suitable for implementation in learning.
Profil Minat Belajar Siswa dengan Model Pembelajaran Problem Based Learning (PBL) pada Kelas XI Saputri, Marina; Muliadi, Agus; Safnowandi, Safnowandi
Educatoria : Jurnal Ilmiah Ilmu Pendidikan Vol. 2 No. 3 (2022): July
Publisher : Lembaga Pendidikan, Penelitian, dan Pengabdian Kamandanu

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (307.783 KB) | DOI: 10.36312/ejiip.v2i3.98

Abstract

This study aims to determine students' interest in learning after being taught using the Problem Based Learning (PBL) learning model. This type of research is descriptive quantitative research using survey methods. Descriptive research is research that aims to describe the data systematically and factually, so that it can describe the state of the subject at that time. This research was conducted at MA Al-Ishlahul Ittihad Jabon Tentan, Bagu Village, Pringgarata District, Central Lombok Regency from March to May 2022, with a total of 20 respondents. In learning interest there are four indicators, namely: 1) feeling happy; 2) student involvement; 3) interest; and 4) students' attention. From the four indicators, a research instrument was formed in the form of a questionnaire with 20 positive statements. Then analyzed by the percentage formula for each item as a whole. Based on the results of the data analysis of the interest in learning questionnaire given to 20 respondents in class XI MA Al Islahul Ittihad Jabon Tentan, it can be concluded that students have an interest in learning with a high category of 12 students or 60%, while students' interest in learning in a very high category is 8 people students or 40%.
Problematika dalam Pembelajaran Kelas Daring Selama Masa Pandemi Covid-19 pada Mata Pelajaran IPA Bahasuan, Nadya Rahmawati; Safnowandi, Safnowandi; Armiani, Sucika
Educatoria : Jurnal Ilmiah Ilmu Pendidikan Vol. 2 No. 4 (2022): October
Publisher : Lembaga Pendidikan, Penelitian, dan Pengabdian Kamandanu

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (204.95 KB) | DOI: 10.36312/ejiip.v2i4.132

Abstract

This study aims to find out the problems of online classroom learning during the Covid-19 pandemic in natural science subjects for students of SMP Negeri 2 Kediri, West Lombok Regency. The type of research used in this research is survey research with qualitative methods. The population of this research is the seventh grade students of SMP Negeri 2 Kediri for the academic year 2021/2022 as many as 24 students. The time and place of the research was carried out at SMP Negeri 2 Kediri, Street Wisata Banyumulek, Kediri District, West Lombok Regency in the odd semester of the 2021/2022 Academic Year. The research instrument used teacher interview sheets and student questionnaire sheets. Data collection techniques used teacher interview techniques to obtain data and information from teachers, and response questionnaires to find out the problems of online classroom learning. The results showed that the students' responses in classroom learning obtained 37.8% questionnaire results in the category of strongly agree, 36.6% in the agree category, 37.9% in the doubtful category, 55% in the disagree category, and 12% in the very category. don't agree. This shows that most students agree with online learning during the Covid-19 pandemic.
Co-Authors Agus Muliadi Ariningsih, Ni Luh Tuti Bahasuan, Nadya Rahmawati Dahlia Rosma Indah Dahliati, Dahliati Dharmawibawa, Iwan Doddy Efendi, Ismail Erwin Saputra Fatmawati, Any Ferisandi, Robiyatul Fitriani, Herdiyana Hamidi, Ilham Inna, Marcelya Jannah, Husnul Khairiyah, Ummu M. Yogi Riyantama Isjoni Purnawati, Purnawati Saidil Mursali Saputri, Marina Siti Murdiyah SUCIKA ARMIANI, SUCIKA