Open Journal System (OJS) Universitas Bengkulu
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Preparasi Preparasi Logam Oksida-Biogenik Silika dan Aplikasinya Dalam Penghilangan Zat Warna: Sebuah Telaah Pustaka
No full textSilika telah menjadi material yang populer karena sifat khas yang unik dan kelimpahannya yang tinggi. Bahan ini telah banyak dimodifikasi dengan menambahkan logam oksida lain untuk mendapat sifat yang menarik. Biogenik silika dapat diproduksi dan diekstraksi dari limbah agroindustri seperti sekam padi, daun bambu, salak, dan kelapa sawit. Artikel ini membahas tentang biogenik silika yang berasal dari limbah agroindustri sebagai pengganti silika komersil dalam sintesis material berbasis silika-logam oksida. Artikel ini menyorot preparasi bahan biogenik silika-logam oksida dari limbah agroindustri dan kemampuannya sebagai bahan penghilang zat warna. Selain itu, hasil yang diperoleh menunjukkan bahwa biogenik silika pengganti silika komersil dalam materil silika-logam oksida memiliki potensi yang sangat baik sebagai bahan penghilang zat warna
PENGEMBANGAN SUPLEMEN BAHAN AJAR CARA-CARA ISOLASI DAN IDENTIFIKASI SENYAWA BAHAN ALAM DENGAN PENDEKATAN STEM’S BERBASIS ANDORID
Get PDFPenelitian ini bertujuan untuk mengetahui tingkat kelayakan, respon mahasiswa terhadap suplemen bahan ajar bahan ajar Kimia Organik Bahan Alam (KOBA KIM 413, KD 2) dengan pendekatan STEM’S bebasis android dan hasil belajar mahasiswa setelah menggunakan suplemen bahan ajar tersebut. Penelitian ini dilaksanakan pada bulan Februari-Juli 2020. Model yang digunakan pada penelitian pengembangan ini adalah ADDI (adaptasi dari model ADDIE) yang terdiri dari tahap analisis, perencanaan, pengembangan, penerapan. Penelitian ini dilakukan di Univeristas Bengkulu dengan subjek mahasiswa pendidikan kimia Universitas Bengkulu yang mengambil mata kuliah KOBA TA 2019/2020. Mahasiswa dengan NPM genap berjumlah 9 orang untuk uji coba skala kecil dan mahasiswa dengan NPM ganjil berjumlah 21 orang untuk uji coba skala besar. Instrumen penelitian yang digunakan berupa angket kebutuhan, lembar validasi, angket respon, serta lembar evaluasi. Hasil penelitian ini diperoleh: (1) tingkat kelayakan suplemen bahan ajar dengan pendekatan STEM’S berbasis android, persentase kelayakan dari segi materi yang didapat yaitu 92,86 % dengan kategori sangat layak sedangkan dari segi media yaitu 80,21 % dengan kategori sangat layak sehingga bahan ajar dinilai layak untuk diujicobakan; (2) Hasil uji coba skala kecil didapatkan respon baik dengan persentasi rata-rata 89,75% dengan ada perbaikan; (3) Hasil belajar mahasiswa setelah menggunakan suplemen bahan ajar KOBA didapatkan nilai rata-rata sebesar 57,3 yang masuk pada kategori lulus. sehingga dapat disimpulkan bahwa suplemen bahan ajar cara-cara isolasi dan identifikasi senyawa bahan alam dengan pendekatan STEM’S bebasis android yang telah dikembangkan dapat digunakan sebagai suplemen dalam proses pembelajaran KOBAPenelitian ini bertujuan untuk mengetahui tingkat kelayakan, respon mahasiswa terhadap suplemen bahan ajar bahan ajar Kimia Organik Bahan Alam (KOBA KIM 413, KD 2) dengan pendekatan STEM’S bebasis android dan hasil belajar mahasiswa setelah menggunakan suplemen bahan ajar tersebut. Penelitian ini dilaksanakan pada bulan Februari-Juli 2020. Model yang digunakan pada penelitian pengembangan ini adalah ADDI (adaptasi dari model ADDIE) yang terdiri dari tahap analisis, perencanaan, pengembangan, penerapan. Penelitian ini dilakukan di Univeristas Bengkulu dengan subjek mahasiswa pendidikan kimia Universitas Bengkulu yang mengambil mata kuliah KOBA TA 2019/2020. Mahasiswa dengan NPM genap berjumlah 9 orang untuk uji coba skala kecil dan mahasiswa dengan NPM ganjil berjumlah 21 orang untuk uji coba skala besar. Instrumen penelitian yang digunakan berupa angket kebutuhan, lembar validasi, angket respon, serta lembar evaluasi. Hasil penelitian ini diperoleh: (1) tingkat kelayakan suplemen bahan ajar dengan pendekatan STEM’S berbasis android, persentase kelayakan dari segi materi yang didapat yaitu 92,86 % dengan kategori sangat layak sedangkan dari segi media yaitu 80,21 % dengan kategori sangat layak sehingga bahan ajar dinilai layak untuk diujicobakan; (2) Hasil uji coba skala kecil didapatkan respon baik dengan persentasi rata-rata 89,75% dengan ada perbaikan; (3) Hasil belajar mahasiswa setelah menggunakan suplemen bahan ajar KOBA didapatkan nilai rata-rata sebesar 57,3 yang masuk pada kategori lulus. sehingga dapat disimpulkan bahwa suplemen bahan ajar cara-cara isolasi dan identifikasi senyawa bahan alam dengan pendekatan STEM’S bebasis android yang telah dikembangkan dapat digunakan sebagai suplemen dalam proses pembelajaran KOBA
Development of Feature Based Learning Media Instagram in Learning Writing Procedure Text at SMP Negeri 2 Imogiri Yogyakarta
Get PDFThe objectives of this research: (1) to determine the development of learning media based on Instagram features with the 4-D model (Define, Design, Develop, Disseminate) in learning procedural text writing skills for class VII junior high school students. (2) describe the feasibility of learning media based on Instagram features in learning text writing skills in class VII junior high school learning procedural texts. (3) describe the practicality of learning media based on Instagram features in learning procedural text writing skills in class VII junior high school. This research developed with 4D model and carried out at SMP Negeri 2 Imogiri in 2023/2024. The subjects of this research were students in class VII F with a sample of 15 students. The development procedure was carried out in four stages, namely define, design, develop, disseminate. Data collection techniques used student response questionnaires, media expert validation sheets, material expert validation sheets, pretest and posttest. The results of this research show: (1) the Instagram feature-based learning media developed for learning procedural text writing skills for class VII students at SMP Negeri 2 Imogiri has been carried out in accordance with the stages of the 4-D Model, namely Define, Design, Develop, Disseminate, (2) the process of developing learning media based on Instagram features is carried out in stages, namely (1) definition, (2) design, (3) development and (4) implementation. (2) Instagram feature-based learning media developed for learning procedure text writing skills for class VII students of SMP Negeri 2 Wonogiri with the 4-D model (Define, Design, Develop, Disseminate) is suitable as a learning media. The results of the assessment from experts on the media being developed obtained a score of 3.4, including in the good category, and the assessment from material experts was 3, including in the good category. (3) Instagram feature-based learning media developed for class VII students at SMP Negeri 2 Imogiri in learning procedural text writing skills using the 4-D model was declared practical for use in learning. the percentage of student learning completeness from 20% to 73.3% was declared valid
Me HUBUNGAN ANTARA KONFORMITAS TEMAN SEBAYA DAN POLA ASUH OTORITER DENGAN KECANDUAN GAME ONLINE PADA SISWA SMK KOTA BENGKULU: Judul, Abstrak, Pendahuluan, Metode Penelitian, Hasil dan Pembahasan, Kesimpulan dan Saran, Daftar Pustaka
No full textThe purpose of this research was to describe the relationship between peer conformity and authoritarian parenting with online game addiction among Vocational School students in Bengkulu City. The research population amounted to 219 and the research sample amounted to 140, which was obtained from a random sampling technique. This research design used was a quantitative descriptive method using regression analysis. The data collection tool used was a questionnaire. The results obtained in this research indicate a positive and significant relationship between peer conformity and online game addiction, this means that the higher the peer conformity, the higher the online game addiction, conversely the lower the perception of peer conformity, the lower the online game addiction in students with an effective contribution of 24.6%. There was a positive and significant relationship between authoritarian parenting and online game addiction, it means that the higher the perception of authoritarian parenting, the higher the online game addiction and conversely the lower the perception of authoritarian parenting, the lower the online game addiction with an effective contribution of 9.1%.
Keywords: Peer conformity, authoritarian parenting, online game addictionPenelitian ini bertujuan untuk mendeskripsikan hubungan antara konformitas teman sebaya dan pola asuh otoriter dengan kecanduan game online pada siswa SMK Kota Bengkulu. Populasi penelitian berjumlah 219 dan sampel penelitian berjumlah 140, diperoleh dari teknik random sampling. Desain penelitian ini adalah metode deskriptif kuantitatif menggunakan analisis regresi. Alat pengumpulan data berupa angket. Hasil yang diperoleh dalam penelitian ini terdapat hubungan yang positif dan signifikan antara konformitas teman sebaya dengan kecanduan game online, artinya semakin tinggi konformitas teman sebaya, maka semakin tinggi kecanduan game online dan sebaliknya semakin rendah persepsi konformitas teman sebaya, maka semakin rendah kecanduan game online pada siswa dengan sumbangan efektif sebesar 24,6%. Terdapat hubungan yang positif dan signifikan antara pola asuh otoriter dengan kecanduan game online, semakin tinggi persepsi pola asuh otoriter, maka semakin tinggi kecanduan game online dan sebaliknya semakin rendah persepsi pola asuh otoriter, maka semakin rendah kecanduan game online dengan sumbangan efektif sebesar 9.1%
MAINTENANCE PADA POMPA SENTRIFUGAL KEWPUMP
Get PDFKewpump centrifugal pump is a very important pump in PT. Incasi Raya Edible Oil, West Sumatra Province. Where the efficiency of this pomp greatly affects the performance of PT. Incasi Raya. The use of this centrifuga pump is to move CPO (Crude Palm Oil). This practical work report conveys information on kewpump centrifugal pump maintenance management. This pump works for 24 hours without stopping. Things that need to be done before maintenance are checking into the field, looking for the source of damage, recording the recurrence of the damage, taking data, asking for maintenance schedules. Usually damage to the pump in PT. Incasi Raya occurs due to mechanical seals, damaged bearings, impeller jams that will affect pump performance, so maintenance is carried out using the corrective maintenance method. Based on the maintenance activities carried out, the results were obtained that damage to the pump occurred in the mechanical seal, with moderate damage that was inspected periodically. Then it is necessary to carry out maintenance in accordance with the procedures that have been made
Studi Identifikasi Nilai-nilai Karakter dalam Cerita Rakyat Masyarakat Rejang Kabupaten Lebong
Get PDFThis study aims to describe the types of folklore that developed in the Rejang society, Lebong Regency, and describe the character values in folklore identified in Lebong Regency. This research uses qualitative research with survey method. The main instrument in this study is the researcher himself and is assisted by supporting instruments in the form of interview sheets and documentation. Data collection techniques used in this study were interviews and documentation. The data obtained were analyzed through data reduction, data display (data display), and drawing conclusions. The results of the study collected fourteen folk tales found in three areas in South Lebong District. Based on the identification results, it can be concluded that, from fourteen folk tales adapted to the types of folklore, they were obtained, namely: four folk tales with the type of myth, five folklores with the type of legend, and five folklores with the type of fairy tale. Based on the results of the identification, it can be concluded that the character values found in the folklore of the Rejang society, Lebong Regency, obtained nine character values, namely: honest, hard work, creative, democratic, curiosity, respect for achievement, care for the environment, social care, and responsibility.This study aims to describe the types of folklore that developed in the Rejang society, Lebong Regency, and describe the character values in folklore identified in Lebong Regency. This research uses qualitative research with survey method. The main instrument in this study is the researcher himself and is assisted by supporting instruments in the form of interview sheets and documentation. Data collection techniques used in this study were interviews and documentation. The data obtained were analyzed through data reduction, data display (data display), and drawing conclusions. The results of the study collected fourteen folk tales found in three areas in South Lebong District. Based on the identification results, it can be concluded that, from fourteen folk tales adapted to the types of folklore, they were obtained, namely: four folk tales with the type of myth, five folklores with the type of legend, and five folklores with the type of fairy tale. Based on the results of the identification, it can be concluded that the character values found in the folklore of the Rejang society, Lebong Regency, obtained nine character values, namely: honest, hard work, creative, democratic, curiosity, respect for achievement, care for the environment, social care, and responsibility.Keywords: character values, folklore, Rejang societ
Pengaruh STAD Berbantu Kartu Kuartet Terhadap Hasil Belajar IPA Kelas IV SDN 5 Kota Bengkulu
Get PDFThis study examined the effects of using the STAD cooperative learning model using quartet card media on students' learning outcomes in Class IV Elementary School 5 Bengkulu City's thematic science learning. The sole matching pretest and posttest study design was utilized in this quantitative research, which was conducted using a quasi-experimental methodology. All class IV students made up the study population, and cluster random sampling was used to choose the research samples. Written test sheets were employed as the instrument, and pretest and posttests, as well as observation sheets on the application of learning using the STAD type cooperative model supplemented by quartet card media, were utilized to gather data. Quantitative analysis was used to analyze the data that was acquired. A substantial difference between the experimental class and the control class was shown by the posttest value analysis findings. Then a tcount (2.225) > ttable (1.998) t-test was performed to evaluate the validity of the hypothesis. It can be concluded that there is an impact of the application of the cooperative learning model type STAD assisted by quartet card media on learning outcomes in the thematic learning of science content in class IV SDN 5 Bengkulu City because the tcount > ttable test results show that H0 is rejected and Ha is accepted.Penelitian ini bertujuan untuk menganalisis pengaruh penerapan model pembelajaran kooperatif tipe STAD berbantu media kartu kuartet terhadap hasil belajar pada pembelajaran tematik muatan IPA di kelas IV SDN 5 Kota Bengkulu. Jenis penelitian yang digunakan adalah penelitian kuantitatif dan metode penelitian ini menggunakan metode penelitian eksperimen dengan desain The Matching Only Pretest-Posttest Control Group Design. Populasi penelitian ini adalah seluruh siswa kelas IV dengan sampel berdasarkan teknik Cluster Random Sampling. Instrumen yang digunakan adalah lembar tes tertulis dengan teknik pengumpulan data dalam bentuk pretest dan posttest serta lembar observasi keterlaksanan pembelajaran dengan menggunakan model kooperatif tipe STAD berbantuan media kartu kuartet. Data yang diperoleh dianalisis menggunakan analisis kuantitatif. Hasil analisis nilai posttest menunjukkan perbedaan yang signifikan antara kelas eksperimen dengan kelas kontrol. Selanjutnya dilakukan uji hipotesis (uji-t) dengan nilai thitung (2,225) > ttabel (1,998). Berdasarkan pengujian thitung > ttabel maka H0 ditolak dan Ha diterima dengan demikian dapat disimpulkan bahwa terdapat pengaruh penerapan model pembelajaran kooperatif tipe STAD berbantu media kartu kuartet terhadap hasil belajar pada pembelajaran tematik muatan IPA di kelas IV SDN 5 Kota Bengkulu.
Kata Kunci : Model Kooperatif Tipe STAD, Media Kartu Kuartet, Hasil Belajar.
 
PENERAPAN MODEL KOOPERATIF TIPE NHT UNTUK MENINGKATKAN AKTIVITAS DAN HASIL BELAJAR SISWA KELAS V SD
Get PDFThis study aims to increase the activity and learning outcomes of grade V students at SDN 07 Bengkulu City by applying the Numbered Head Together cooperative learning model. This type of research is classroom action research. The subjects of this study were teachers and students with a total of 28. The research instruments were observation sheets and test questions. Observation data analysis techniques use the average score formula, the highest score, the lowest score, the difference between the scores and the range of values for each criterion. The test data uses the formula for the average value and percentage of learning completeness. The results showed an increase from cycle I to cycle II, this was obtained from the results of the average teacher activity score of 31.5 increasing to 43.5 while the results of student activity scores obtained an average of 31.5 increasing to 43.5. The results of the evaluation test on Indonesian language content obtained an average score of 71.42 with classical completeness of 64.28%, increasing to 81 and classical completeness of 85.71%. Science content obtained an average score of 72.85 with classical completeness of 64.28%, increasing to 80 and classical completeness of 85.71%. Thus it can be concluded that the application of the Numbered Head Together model can increase activity and learning outcomes in thematic learning for class V SDN 07 Bengkulu City.Penelitian ini bertujuan untuk meningkatkan aktivitas dan hasil belajar siswa kelas V SDN 07 Kota Bengkulu dengan menerapkan model pembelajaran kooperatif Numbered Head Together. Jenis penelitian ini adalah penelitian tindakan kelas. Subyek penelitian ini adalah guru dan siswa yang berjumlah 28 orang. Instrumen penelitian berupa lembar observasi dan soal tes. Teknik analisis data observasi menggunakan rumus skor rata-rata, skor tertinggi, skor terendah, selisih skor dan rentang nilai untuk setiap kriteria. Data tes menggunakan rumus nilai rata-rata dan persentase ketuntasan belajar. Hasil penelitian menunjukkan adanya peningkatan dari siklus I ke siklus II, hal ini diperoleh dari hasil rata-rata skor aktivitas guru 31,5 meningkat menjadi 43,5 sedangkan hasil skor aktivitas siswa diperoleh rata-rata 31,5 meningkat menjadi 43,5. Hasil tes evaluasi isi bahasa Indonesia memperoleh skor rata-rata 71,42 dengan ketuntasan klasikal sebesar 64,28%, meningkat menjadi 81 dan ketuntasan klasikal sebesar 85,71%. Konten IPA memperoleh skor rata-rata 72,85 dengan ketuntasan klasikal 64,28%, meningkat menjadi 80 dan ketuntasan klasikal 85,71%. Dengan demikian dapat disimpulkan bahwa penerapan model Numbered Head Together dapat meningkatkan aktivitas dan hasil belajar pada pembelajaran tematik kelas V SDN 07 Kota Bengkulu
Studi Evaluasi Pengelolaan Kelas pada Pembelajaran Outdoor di Kelas VA SDN 08 Kota Bengkulu
Get PDFThis study aims to evaluate classroom management in outdoor learning at SD Negeri 08 Bengkulu City. This research is an evaluation research using the discrepancy evaluation model. The subjects of this research were VA class teachers and VA class students. Qualitative data were obtained from observation sheets, interviews and documentation. This study uses a qualitative selection of considerations and uses the Miles and Huberman model of analysis techniques. The results show that the arrangement of students and facilities in the implementation of classroom management in learning outside the classroom (outdoor learning) has been successful because it has implemented the set standard. The number of occurrences of each indicator is mostly (5) very good, (4) good, and (3) sufficient. Therefore the implementation of classroom management in learning outside the classroom can be said to have been successful. The implementation of learning outside the classroom (Outdoor Learning) is in accordance with the provisions that are enforced even though there are several descriptors that do not appear
Pengaruh Problem Based Learning Terhadap Hasil Belajar Matematika Kelas V SDN Kota Bengkulu
Get PDFThe reason for this review is to decide the impact of PBL on mathematics learning output in class V at SDN Gugus XII Bengkulu City. This exploration is a quantitative examination, with a Semi Trial research strategy with the exploration plan The Matching Just Pretest-Posttets Control Gathering Plan. The populace in this examination is Class V SDN Gugus XII Bengkulu City consisting of SDN 81, 99, 20 and 60 which are in Bengkulu City. The example in this review is the control class will be classV SDN 99 Bengkulu City and the trial class will be class V SDN 81 Bengkulu City. Sampling using cluster random sampling. The review tool includes multiple choice questions test through the pretest given before active research and posttests are given after active research activities. Information studies are studied using descriptive analysis, reflection tests, and inferential analysi. The pretest t test of the experimental class and the control class obtained t count 0.457 <t table 1.672, then the experimental class and control class had the same initial abilities, and the results of the posttest t test data, tcount value 3.085 > ttable value 1.672. So it was presumed that there was an impact of the use of the PBL learning model on mathematics learning outcomes in class V at SDN Gugus XII Bengkulu City. since there were various medicines for the control class and exploratory class.Tujuan penelitian ini adalah untuk mengetahui pengaruh PBL terhadap hasil belajar matematika di kelas V SDN Gugus XII Kota Bengkulu. Penelitian ini merupakan penelitian kuantitatif, dengan desain The Matching Only Pretest-Posttets Control group Design. Populasi dalam penelitian ini adalah Kelas V SDN Gugus XII Kota Bengkulu yang terdiri dari SDN 81, 99, 20 dan 60 yang berada di Kota Bengkulu. Kelas kontrol adalah kelas V SDN 99 Kota Bengkulu dan kelas eksperimen adalah kelas V SDN 81 Kota Bengkulu. Pengambilan sampel menggunakan cluster random sampling. Instrumen penelitian meliputi soal pilihan ganda melalui pretest yang diberikan sebelum kegiatan pembelajaran dan posttest yang diberikan setelah kegiatan pembelajaran. Pengolahan data penelitian menggunakan analisis deskriptif, tes refleksi, dan analisis inferensial. Uji t pretest kelas eksperimen dan kelas kontrol diperoleh thitung 0,457 < ttabel 1,672, maka kelas eksperimen dan kelas kontrol mempunyai kemampuan awal yang sama, dan hasil data uji t posttest nilai thitung 3,085 > nilai ttabel 1.672. Sehingga disimpulkan terdapat pengaruh model pembelajaran PBL terhadap hasil belajar matematika kelas V SDN Gugus XII Kota Bengkulu