Pengaruh Pembelajaran Matematika dengan Menggunakan Pendekatan Kontekstual Terhadap Kemampuan Komunikasi Matematis Siswa

Tujuan penelitian ini untuk menganalisis tingkat kemampuan komunikasi matematis siswa SMA yang memperoleh pembelajaran matematika dengan menggunakan pendekatan kontekstual dibandingkan dengan siswa yang memperoleh pembelajaran matematika biasa dalam materi barisan dan deret aritmatika. Pendekatan penelitian ini menggunakan pendekatan kuantitatif, dengan menggunakan desain penelitian eksperiment. Populasi penelitian diambil dari salah satu sekolah SMA di Kabupaten Sukabumi, yaitu di kelas X tahun ajaran 2017/2018. Data penelitian diambil dari dua kelas, yaitu kelas eksperimen yang mendapatkan pembelajaran matematika dengan menggunakan pendekatan kontekstual dan kelas kontrol yang mendapatkan pembelajaran matematika biasa. Instrumen penelitian menggunakan tes tipe subjektif dengan menggunakan bentuk soal uraian. Hasil penelitian menunjukkan bahwa rata-rata kemampuan komunikasi matematis kelas eksperimen lebih baik daripada kelas kontrol. Setelah dilakukan analisis data hasil penelitian dapat disimpulkan bahwa hipotesis yang diajukan dalam penelitian ini diterima. Dengan demikian, pembelajaran matematika dengan menggunakan pendekatan kontekstual sangat relevan untuk diterapkan sebagai salah satu upaya untuk meningkatkan kemampuan komunikasi matematis siswa

Pengaruh Pembelajaran Matematika dengan Menggunakan Pendekatan Kontekstual Terhadap Kemampuan Komunikasi Matematis Siswa

Tujuan penelitian ini untuk menganalisis tingkat kemampuan komunikasi matematis siswa SMA yang memperoleh pembelajaran matematika dengan menggunakan pendekatan kontekstual dibandingkan dengan siswa yang memperoleh pembelajaran matematika biasa dalam materi barisan dan deret aritmatika. Pendekatan penelitian ini menggunakan pendekatan kuantitatif, dengan menggunakan desain penelitian eksperiment. Populasi penelitian diambil dari salah satu sekolah SMA di Kabupaten Sukabumi, yaitu di kelas X tahun ajaran 2017/2018. Data penelitian diambil dari dua kelas, yaitu kelas eksperimen yang mendapatkan pembelajaran matematika dengan menggunakan pendekatan kontekstual dan kelas kontrol yang mendapatkan pembelajaran matematika biasa. Instrumen penelitian menggunakan tes tipe subjektif dengan menggunakan bentuk soal uraian. Hasil penelitian menunjukkan bahwa rata-rata kemampuan komunikasi matematis kelas eksperimen lebih baik daripada kelas kontrol. Setelah dilakukan analisis data hasil penelitian dapat disimpulkan bahwa hipotesis yang diajukan dalam penelitian ini diterima. Dengan demikian, pembelajaran matematika dengan menggunakan pendekatan kontekstual sangat relevan untuk diterapkan sebagai salah satu upaya untuk meningkatkan kemampuan komunikasi matematis siswa

Analisis Statis Desain Chassis Kendaraan Listrik 2 Penumpang

Tujuan penelitian ini adalah untuk mendapatkan sebuah rancangan chassis kendaraan listrik yang aman dan nyaman. Metode penelitian yang digunakan adalah metode Research And Development (R&D) dengan bantuan perangkat lunak (software) yang mampu untuk pembuatan suatu model dalam bentuk gambar 3 dimensi, dalam hal ini software yang digunakan adalah Autodesk Inventor 2019. Autodesk Inventor 2019 dapat menguji kontruksi chassis yang dapat mengetahui nilai Von-Misses Stress, Displacement dan Safety Factor pada konstruksi frame kendaraan listrik. Dari hasil analisis perancangan chassis kendaraan listrik diperolehkan hasil pengujian yang dilakukan secara perhitungan komputer dimana angka dari tiap-tiap bagian yang diuji nilai safety factor sangat aman. Hasil penelitian ini menunjukkan bahwa desain chassis yang dibuat adalah jenis ladder frame yang dapat digunakan untuk kendaraan listrik 2 penumpang. Nilai Von-misses stresses pada material Steel AISI 1035, Besi Hollow ASTM A 500 dan Aluminium Alloy AA 6063-T6 berturut-turut adalah 5.53 x 107 Pa, 5.52 x 107 Pa dan 5.53 x 107 Pa. Nilai Displacement pada material Steel AISI 1035, Besi Hollow ASTM A 500  dan Aluminium Alloy AA 6063-T6 berturut-turut adalah 0.141 mm, 0.141 mm dan 0.250 mm. Nilai Safety factor pada material Steel AISI 1035, Besi Hollow ASTM A 500 dan Aluminium Alloy AA 6063-T6 berturut-turut adalah 6.689, 4.875 dan 3.067. Desain chassis ladder frame yang dibuat dengan material Steel Aisi 1035 memiliki safety factor yang lebih tinggi dibandingkan dengan material Besi Hollow ASTM A 500 dan Aluminium Alloy AA 6063-T6. Tetapi pada tahap fabrikasi di lapangan lebih memilih material Besi Hollow ASTM A 500, alasanya menggunakan material Besi Hollow ASTM A 500 karena material Besi Hollow ASTM A 500 memiliki nilai yield strength yang tidak jauh dengan material Steel Aisi 1035. Dan alasan lainya yaitu karena Besi Hollow ASTM A 500 memiliki nilai safety factor yang sudah di atas angka 4 dan pastinya harga Besi Hollow ASTM A 500 relative lebih terjangkau dibandingkan dengan material Steel Aisi 1035

Simplified Lawsuits in Dispute Resolution Within Sharia Economic Law in Indonesia

This research is based on the numerous disputes in Sharia economic law within Sharia Business Financial Institutions, legal aid in the field of Sharia economic law, and civil matters that have not been well resolved. The Regulation of the Supreme Court of the Republic of Indonesia (PERMA RI) No. 4 of 2019 regulates the resolution of Sharia economic law disputes in a simplified manner. However, the socialization of this regulation to the public is still lacking, causing frequent obstacles in the implementation of this PERMA RI. This research is a literature study with a juridical approach aimed at analyzing the implementation of PERMA RI in the resolution of Sharia economic cases. The primary data in this research includes PERMA RI No. 4 of 2019, PERMA RI No. 14 of 2016, PERMA RI No. 2 of 2015, and PERMA RI No. 1 of 2016. Several relevant cases are used as important data to analyze the implementation of these regulations. The results of this research show that the process of simplified lawsuits in the resolution of Sharia economic disputes, which is expected to be easier, faster, and cheaper in court, has not been realized in accordance with PERMA RI. This needs to be a concern for the Supreme Court because most Sharia economic dispute cases involve companies and the public. If the Supreme Court regulations are not properly implemented in court proceedings, it will create a space for injustice. Therefore, the socialization of these Supreme Court regulations needs to be enhanced by academics and practitioners so that their implementation in the future can be better

KOMPONEN CADANGAN DALAM SISTEM PERTAHANAN KEAMANAN RAKYAT SEMESTA DI ABAD 21

The dynamics of strategic environmental development have created a complex spectrum of threats, challenges and risks, the development of the strategic environment always brings changes to the complexity of threats and challenges to the defense of the State. Threat predictions that arise at any time can be categorized into three types of threats, namely military threats, nonmilitary threats, and hybrid threats. The establishment of the Reserve Component is considered not including the priority agenda and even shows irregularities in determining the priorities of the security sector reform agenda. If the government has the goal to strengthen the defense sector to be more professional, strong and modern, then the development of the main component, the Indonesian National Army (TNI), should be a priority agenda and need to be put forward by the government. The research will address what is seen as necessary by building universal people's defense and security systems in the face of military, non-military and hybrid threats. Based on the type of research, this research is included in case study research, while based on purpose, this research is a policy reserach, case study research is a study conducted intensively, detailed and in-depth on a particular organization, institution or symptom. Various national development activities carried out by the government to achieve the objectives contained in the Opening of the 1945 Constitution, namely protecting all Indonesians in the Universal People's Defense and Security System (Sishankamrata) are carried out in an integrated and sustainable manner in accordance with the priorities and needs of the country set through short-term and long-term national development programs. Implementation of spare components in support of the universal people's defense system in the 21st century. The reserve component is mandatory to be established in Indonesia as part of Indonesia's defense force, especially in the face of aght that is non-military

PENGARUH PENGGUNAAN ACTION CAM TERHADAP KUALITAS PENILAIAN PROSES DOSEN PRAKTIKUM

The assessment systemsoflecturer practice in the Department of Mechanical Engineering Education atUniversity of Sarjanawiyata Tamansiswa still using the conventional method of direct observation. Whereas,the direct observation of continuously and objectively was very difficult to dobylecturers. Therefore, it is necessary to investigate whether the use Action Cam can affect the quality of the assessment process in the lecturer practice at Department of Mechanical Engineering Education. This study was an experimental study with experimental design of pre-test post-test control group. The population used werelecturerswho teachingthe practice with amount of31 classes. The sampling technique used was the simple random sampling with a sample of 28 practice subject. The data were collected using questionnaires and documentation. The data analysis techniques of nonparametric statistic used was the Wilcoxon Signed Rank test with SPSS 18.0 Software analyzes. The results show that there is significant effect on the use Action Cam on the quality of the assessment process of lecturer practice in Department of Mechanical Engineering Education with Asymp.Sig value of 0,000

PELATIHAN SOFTWARE RHINOCEROS DAN MAXSURF UNTUK MENINGKATKAN KOMPETENSI DESAIN 3D PENGRAJIN KAPAL TRADISIONAL DI PESISIR PEKALONGAN

ABSTRAKKota Pekalongan terletak di pantai utara Jawa Tengah dimana wilayah pesisir utara ini terdapat potensi yang dapat dikembangkan menjadi aset yang berharga bagi bangsa yaitu para pembuat kapal tradisional. Dalam pelaksanaannya, baik tipe ataupun bentuk kapal yang dibangun, berdasarkan pengalaman kapal-kapal yang pernah dibuat sebelumnya, tanpa melalui perhitungan dan penggambaran terlebih dahulu, sehingga dalam beberapa kasus terhadap pesanan kapal yang berbeda bentuknya, maka pengrajin ini akan mengalami kesulitan. Minimnya pengetahuan tentang gambar teknik juga menyebabkan para pengrajin kapal tradisional tidak dapat menggambar lambung kapal mereka. Hal ini menyebabkan perlunya sosialisasi mengenai teknologi perkapalan kepada pengrajin kapal di Kota Pekalongan terutama dibidang rancang bangun (design) dan konstruksi kapal agar terdapat standar baku mengenai konstruksi kapal kayu yang sesuai dengan standar yang ada seperti Biro Klasifikasi Indonesia (BKI). Pelatihan dilakukan dengan metode presentasi, demonstrasi, serta praktik langsung. Untuk mengukur pencapaian maka dilakukan pretest dan posttest yang dilakukan sebelum dan sesudah pelatihan. Hasil kuesioner menunjukkan adanya peningkatan pengetahuan peserta pelatihan desain kapal. Sebelum dilakukan pelatihan, rata-rata pengetahuan peserta sebesar 26% dalam memahami desain kapal dan 33% dalam memahami analisa tahanan kapal, kemudian mengalami peningkatan menjadi rata-rata sebesar 76% untuk pemahaman desain kapal dan 77% untuk analisa tahanan kapal setelah diberi pelatihan. Kata kunci: desain; pengrajin; kapal kayu; karakteristik kapal ABSTRACTThe city of Pekalongan is located on the north coast of Central Java where there is potential for this northern coastal region to be developed into a valuable asset for the nation, namely traditional shipbuilders. In practice, both the type and shape of the ship built, based on the experience of ships that have been made before, without going through calculations and drawings beforehand, so that in some cases orders for ships with different shapes, these craftsmen will experience difficulties. The lack of knowledge about technical drawings also causes traditional shipbuilders to be unable to draw their hulls. This causes the need for socialization regarding shipping technology to ship craftsmen in Pekalongan City, especially in the field of ship design and construction so that there are standard standards regarding wooden ship construction in accordance with existing standards such as the Indonesian Classification Bureau (BKI). The training is carried out using presentation methods, demonstrations, and hands-on practice. To measure achievement, a questionnaire was filled out before and after the training. The results of the questionnaire showed an increase in the knowledge of ship design training participants. Before the training, the average knowledge of the participants was 26% in understanding ship design and 33% in understanding ship resistance analysis, then increased to an average of 76% for understanding ship design and 77% for ship resistance analysis after being given training. Keywords: design; craftsmen; wooden ships; ship characteristic

MEMAHAMI EKUITAS MEREK PERGURUAN TINGGI: PENELITIAN EMPIRIS PADA STIE SURAKARTA, JAWA TENGAH, INDONESIA

Measuring brand equity becomes an important part in the organization, espe­ci­al­ly college. By mea­suring the brand equity, the college would be more understanding about its brand awareness, brand asso­ciation, perceived quality, and brand loyalty. The Research problems were: (1) How were the students’ per­ception about STIE Surakarta brand awareness?(2) How were the effects of brand association and perceived quality on brand loyalty. The samples of this research were 120 students of STIE Surakarta. The analysis used description and Structural Equation Modeling (SEM). The results showed that (1) the brand of STIE Surakarta occupied 3rd position in the minds of consumers; (2) Brand association had positive but in­sig­ni­ficant effect on loyalty and perceived quality had positive and significant effect on brand loyalty

The Influence of Molasses Concentration on the Physical and Mechanical Properties of Evaporation Boat Waste-Based Crucibles

Crucibles are essential tools used in many industries, and their production can be resource-intensive and costly. This study aims to determine the potential of evaporation boat waste produced by the plastic metallization industry with molasses as a binder in crucible production. This study explores the effects of various concentrations of molasses on the mechanical and physical properties of crucibles made from evaporation boat waste. The evaporation boat waste used in this study was crushed and filtered with a 100-mesh sieve. Molasses were added during the mixing process with concentrations of 0 wt.%, 5 wt.%, 10 wt.%, 15 wt.%, and 20 wt.%. The mixing process was done for 120 minutes, followed by compaction with a pressure of 25 MPa. The green body formed is dried at 100?C for 300 minutes. In this study, firing was done at 1150?C temperature with 240 minutes of holding time. The specimens in this study were characterized using XRD, SEM, density, hardness, and 3-point bending tests. The results showed that the resulting crucible only had BN and TiB2 crystalline phases. Using molasses as a binder showed that crucible specimens did not form a new crystalline phase. Increasing the molasses content from 0 wt.% to 5 wt.% led to an increase in the physical and mechanical properties of the crucible specimens. However, the mechanical and physical properties of the crucible specimens decreased with the use of molasses that exceeded 5 wt.%. The best mechanical and physical properties of crucible specimens were produced using 5 wt.% molasses. This composition has a weight percentage of BN and TiB2 of 68.9% and 31.1%, with density, hardness, and flexural strength of 2.36 g/cm3, 64 HRA, and 31.5 MPa

Investigating the effect of molasses concentrations on the characterization of evaporation boat waste for crucible materials candidate

The crucible is a container wherein metallic materials are melted in order to generate new objects or alloys. Crucibles are typically formed of ceramic, graphite, silicon-carbide, and steel. Until now, there has been no study on the use of evaporation boat waste and molasses for the manufacture of crucibles. This study shows that molasses was used for binding the crucibles production formed from evaporation boats waste. The goal of this research was to ascertain how using molasses affected the properties of the crucible produced. Evaporation boat waste is made into powder (mesh 80) using a hammer mill. Molasses, evaporation boat waste powder and water with a certain concentration are mixed homogeneously using a mixer. The mixed material is put into a mold that has been adjusted to ASTM C1161-18, and then the compaction process is performed (20 MPa) to produce a green body. The resulting green body underwent a 16-hour drying time in an oven set at 100°C. Afterward, it was sintered for 240 minutes at 1150°C. The specimens in this study were characterized using XRD, SEM, density, hardness and 3-point bending tests. The test results show that molasses as a binder in the manufacture of crucible specimens does not result in the formation of a new crystalline phase. 5% molasses produced the best specimens. In specimens with 5% molasses, the density, hardness, flexural strength, and weight percentage (%) crystal phase of BN and TiB2 were 2.25 g/cm3, 61.6 HRA, 49.96 MPa, 67.5%, and 32.5%