Pengaruh Waktu Pereaksian K2so4 Terhadap Yield Pembuatan Alum Dari Tanah Liat Plered Dengan Proses Kering

Selama ini pemanfaatan mineral tanah liat baru sebatas untuk bahan baku pabrik keramik, semen, genteng dan batu bata, padahal tanah liat dapat didiversifikasikan nilai ekonomisnya untuk keperluan lain seperti pembuatan Alum yang dapat digunakan untuk proses pengolahan air. Penelitian ini bertujuan untuk mencari kondisi optimum dari waktu reaksi terhadap yield pembuatan alum dari tanah liat dengan proses kering. Penelitian ini merupakan eksperimen untuk menentukan kondisi operasi pada pembuatan alum dari tanah liat, analisis korelasi antara waktu reaksi dan yield pembentukan alum diolah menggunakan metode persamaan “Least Square”. Hasil penelitian didapatkan waktu reaksi Kalium Sulfat maksimum pembentukan Alum berlangsung selama 1.75 jam (105 menit) dengan yield 76.7%, sedangkan waktu reaksi optimum terjadi pada waktu 0,167 jam (10 menit) dengan yield sebesar 68,4%

Penguatan Pendidikan Karakter di Era Industri 4.0: Optimalisasi Pendidikan Agama Islam di Sekolah

Advances in information and communication technology in the Digital Revolution Era, in addition to positive impacts, also had a negative impact on human character, such as individualist, materialist attitudes, and even rejecting spiritual aspects. Therefore, we need the concept of Strengthening Character Education by optimizing the role of Islamic Religious Education in Schools to educate students who have faith, taqwa, and have good character according to their fitrah. To answer this need, a library research study was conducted which analyzed several papers that were relevant to the hermeneutic approach and content analysis method. This article finds that the optimization of Islamic Religious Education in Strengthening of Character Education in schools can be done by: first, strengthening the character of Muslim teachers who emulate the character of the Prophet SAW as a true educator; secondly, optimization of Islamic Religious Education in Class-based Strengthening Character Education with a tauhid-based science paradigm, integrating Islamic values in learning, and strengthening Islamic Religious Education materials in schools; third, optimization of Islamic Religious Education in school-based Strengthening Character Education by implementing the concept of taqwa-based Islamic education and making surau as a character labor; and fourth, the optimization of Islamic Religious Education in community-based Strengthening Character Education by organizing Islamic parenting and school collaboration with parents and the community in strengthening the character of students

Pengaruh Model Pembelajaran Predict-Observe-Explain (POE) Berbantuan Simulasi Virtual Terhadap Penguasaan Konsep Fisika Siswa SMA

This study aims to determine the effect of Predict-Observe-Explain (POE) learning models assisted by virtual simulations on the mastery of physics concepts in high school students. This type of research is a quasi-experimental with non-equivalent control group design. The population was all students of class X MIA MAN 2 Central Lombok, amount to 47 students with a sampling technique using saturated sample techniques,hence the sample used in this study was class X MIA-1 as an experimental group of 24 students and class X MIA- 2 as a control group of 23 students. Before being treated, both samples were given a preliminary test to determine their initial abilities. Based on homogeneity test results, both samples have the same initial ability. In the final test, obtained an average score of mastery of concepts from the experimental class of 66 with the highest score of 85 and an average score of the control class of 55 with the highest score of 75. The research hypothesis was tested with the t-polled variance test with a significance level of 5%, and the results obtained t_count = 3.63, while t_table = 2.02. Based on these results, it means that t_count is greater than t_table, so Ho is rejected. Thus, the conclusion is the Predict-Observe-Explain (POE) learning model assisted by virtual simulations has an influence on the mastery of physics concepts in high school students

Operational Audit From the Procedures Providing Loan Credit for Preventing Problems Credit

The purpose of this research is to know the procedure of giving workingcapital loan at Bank Sumsel Babel, to know whether the procedure of Working Capital Credit at Bank Sumsel Babel has been run in accordance with prevailing regulation in Bank Sumsel Babel, and also effort to prevent problem loans through operational audit. The research method used in this paper is descriptive analysis with data collection techniques in the form of observation and interview with Credit Division Bank Sumsel Babel. The results of this study indicate that from the five stages in the provision of working capital loans, there are several findings that exist at the stage of credit analysis and in the credit supervision stage. In the credit analysis phase of credit application instrument documents (PAK) in the form of MPK and FIP is not prepared in accordance with the guidance book of credit (BPP) of Bank Sumsel Babel. In the credit supervision stage, credit analyst of Bank Sumsel Babel does not compose FRP where the document is an important document to monitor the progress of the debtor in termsof future business prospects. The weakness has a significant impact on theprovision of Bank Sumsel Babel where the weakness can lead to the risk of bad debts as a result of the wrong rating of the working capital creditors of Bank Sumsel Babel

The Effect of Problem-Based Learning Model Assisted by PhET Simulations on Students’ Physics Problem-Solving Abilities

This study aims to examine the effect of problem-based learning model assisted by PhET simulations on students' physics problem solving ability. This research is Quasi Experimental with non-equivalent control group design. The population of this study were all students of class XI IPA SMAN 4 Mataram with sampling technique using purposive sampling technique, because there were four classes XI IPA, so it was determined that class XI IPA 1 as the experimental class and class XI IPA 2 as the control class. Based on the results of the study, the average value of physics problem solving ability of students in the experimental class was 45.09, while the average value of problem-solving ability of the control class was 39.61. Data Problem solving ability of both classes are normally distributed. Based on the results of the data homogeneity test, the problem-solving ability data are both homogeneous. Problem solving ability data was analyzed using the polled variance t-test and obtained a t_count of 2.24. The t-table value for problem solving ability data is 2.00 at a significant level of 5%. The value of t_count is greater than t_table, meaning that there is an effect of problem-based learning model assisted by PhET simulations on physics problem solving ability of students

Pelaksanaan Kegiatan Kunjungan Rumah oleh Guru Bimbingan dan Konseling

Tujuan penelitian ini adalah untuk mengetahui pelaksanaan kegiatan kunjungan rumah oleh guru Bimbingan dan Konseling di SMK Negeri 1 Pekalongan Lampung Timur tahun pelajaran 2019/2020. Jenis penelitian ini adalah penelitian kualitatif dengan analisis data melalui empat tahap yaitu: pengumpulan data, reduksi data, penyajian data dan penarikan kesimpulan. Hasil penelitian ini ialah: (1) Guru Bimbingan dan Konseling SMK Negeri 1 Pekalongan melakukan perencanaan dengan menyiapkan data, menetapkan kasus, dan informasi yang ingin digali serta melibatkan anggota keluarga untuk mecari data yang dibutuhkan. Dalam pelaksanaan kunjungan rumah, guru Bimbingan dan Konseling selalu mengutamakan jalinan komunikasi dengan orang tua/wali murid untuk memaksimalkan penyelesaian masalah. (2) Penerimaan anggota keluarga dalam kegiatan kunjungan rumah tervisualisasikan melalui sikap ramah tamah pada kedatangan guru Bimbingan dan Konseling. Sikap kerjasama juga ditunjukan orang tua/anggota keluarga dengan memberikan data yang diperlukan sebagai pelengkap untuk dapat diproses dan dievaluasi oleh Guru Bimbingan dan Konseling

Pengaruh Model Pembelajaran Inkuiri Terbimbing Berbantuan Media PhET Terhadap Kemampuan Pemecahan Masalah

Penelitian ini bertujuan untuk menguji pengaruh model inkuiri terbimbing berbantuan media PhET terhadap kemampuan pemecahan masalah peserta didik. Jenis penelitian ini adalah kuasi eksperimen dengan desain penelitian pretest and posttest with non-eqivalent control group design. Tempat penelitian di SMP Negeri 1 Utan, teknik pengambilan sampel purposive sampling. Sampel penelitian yang digunakan adalah kelas VII-2 sebagai kelas kontrol diberikan perlakuan pembelajaran konvensional dan VII-1 sebagai kelas eksperimen diberikan perlakuan model inkuiri terbimbing berbantuan simulasi PhET. Instrumen tes yang digunakan pada penelitian ini berupa soal uraian dengan jumlah 5 soal yang telah diuji validitas, reliabilitas, daya pembeda dan tingkat kesukaran soal. Hasil analisis posttest didapatkan data terdistribusi normal dan homogen. Hasil analisis posttest diperoleh rata-rata posttest pada kelas eksperimen sebesar 75,61 dan kelas kontrol sebesar 58,30. Hasil uji N-gain untuk kelas eksperimen diperoleh N-gain skor sebesar 0,71 dengan kategori tinggi dan  kelas kontrol sebesar 0,50 dengan kategori sedang. Hasil uji hipotesis menunjukkan  hasil yait

Peningkatan Kreativitas Siswa melalui Implementasi Profil Pelajar Pancasila Rahmatan Lil ‘Alamin (P5-PPRA) di MTSN 1 Tanah Datar

This research aims to describe 1). P5-PPRA Planning in MTSN 1 Tanah Datar 2). Implementation of P5-PPRA at MTSN 1 Tanah Datar 3). Inhibiting factors in implementing P5-PPRA at MTSN 1 Tanah Datar. The method used in this writing uses a qualitative library research approach and interviews. In this method, data is collected through several literature such as books, journals and sources that support this discussion. The results of the research show that 11) the design of P5-PPRA at MTSN 1 Tanah Datar is good and has been discussed first before applying P5-PPRA to students who pay attention to the creativity of students and also teachers. 2) the implementation of P5-PPRA is in accordance with the process that has been held together by the facilitator team where students have been given the topic of recycling eggshell waste into calligraphy, and this shapes students' creativity. 3) The obstacles to P5-PPRA at MTSN 1 Tanah Datar are lack of facilities and infrastructure, little time and educators who still do not fully understand P5-PPRA

PENGEMBANGAN MODUL FISIKA MATERI OPTIK DENGAN PENDEKATAN SAINTIFIK BERBASIS FENOMENA ALAM UNTUK MENINGKATKAN EFEKTIVITAS BELAJAR SISWA SMA

Abstrak. Penelitian ini bertujuan untuk mengetahui langkah pengembangan modul fisika materi optik, mengetahui kelayakan modul fisika materi optik, dan mengetahui efektifitas penggunaan modul fisika materi optik dengan pendekatan saintifik berbasis fenomena alam. Penelitian ini merupakan penelitian pengembangan dengan menggunakan modifikasi dari model 4-D. Produk awal dikembangkan melalui suatu uji validasi oleh tiga ahli yang hasilnya kemudian diuji coba skala terbatas, direvisi dan diuji skala luas sehingga pada akhirnya ditemukan suatu produk akhir yang layak digunakan. Penelitian ini dilaksanakan di SMA Negeri 4 Kota Bima dengan menggunakan 10 siswa kelas X1 sebagai sampel uji coba terbatas dan seluruh siswa kelas X2 sebagai subyek penelitian dan dianalisis secara deskriptif persentase. Hasil uji kelayakan modul oleh dosen ahli diperoleh rata-rata 90,75% dengan kriteria sangat layak. Hasil uji lapagan diperoleh tanggapan siswa 89,53% dan tanggapan guru 90% serta observasi saintifik siswa oleh pengamat sebesar 90,76% dengan tingkat ketuntasan klasikal siswa 100% dengan rata-rata hasil belajar siswa sebesar 80,50, sehingga modul fisika materi optik berbasis fenomena alam dengan pendekatan saintifik yang dikembangkan memenuhi kriteria standar penilaian bahan ajar dan efektif digunakan dalam pembelajaran siswa kelas X SMA Negeri 4 Kota Bima. Kata Kunci: Modul Fisika Materi Optik, Pendekatan Saintifik, Efektivitas Belaja