Conflict and Sensitivity Analysis of Articulated Vehicle Lateral Stability Based on Single-Track Model

Lateral stability is quite essential for the vehicle. For the vehicle with an articulated steering system, the vehicle load and steering system performance is quite different from the passenger car with the Ackman steering system. To investigate the influence of the tire characteristics and vehicle parameters on lateral stability, a single-track dynamic model is established based on the vehicle dynamic theory. The accuracy of the built model is validated by the field test result. The investigated parameters include the tire cornering stiffness, vehicle load, wheelbase, and speed. Based on the snaking steering maneuver, the lateral stability criteria including the yaw rate, vehicle sideslip angle, tire sideslip angle, and lateral force are calculated and compared. The sensitivity analysis of the tire and vehicle parameters on the lateral stability indicators is initiated. The results demonstrated that the parameters that affect the lateral vehicle stability the most are the load on the rear part and the tire cornering stiffness. The findings also lay a foundation for the optimization of the vehicle’s lateral stability.

DEVELOPMENT OF A GUIDEBOOK FOR DESIGNING INTERACTIVE DISTANCE LEARNING (PIJAR) FOR LECTURERS OF TECHNOLOGY AND VOCATIONAL EDUCATIONAL DEPARTEMENT

The research aims at developing a guidebook for designing interactive distance learning for lecturers, considering that lecturers need guidance on how to design a learning implementation process that remains interactive in a full online learning system during the Covid 19 pandemic. The development of a guidebook stage adopted the model of Dick & Carey which modified into 4 stages, namely stages; (1) requirement analysis; (2) product design; (3) validation and evaluation; and (4) product revision. Based on development result, data found as follows; (1) the expert's assessment shows that the guidebook is included in the criteria of "very good" from the media aspect (94.44%) and "good" from the material aspect (86.11%) hence the guidebook can be used in learning; (2) test results on a small group shows that the product developed include in the criteria of “good” (83,33%) hence the guidebook can be used in learning; (3) field test result that the product developed include in the criteria of “good” (89,28%) hence the guidebook can be used in learning. Key words: Interactive learning, distance learning

Mathematics Learning Media Development Using Realistic Mathematics Education

This research aims to develop learning mathematics media using proven validity-PMR approach, practicality and effectiveness in improving HOTS of Junior High School students class VIII. This type of research was the development of ADDIE model consisting of analysis, design, development, implementation and evaluation. The tests were carried out in four phases, expert test, limited test, field test, and effectiveness test. The subjects in this study were teachers and students. The instruments used were validation sheet, student’s questionnarie, observation sheet and instrument test. The results show the learning media developed has fulfilled validity, practicality and effectiveness aspect. (1) The validity result shows the developed learning media in the category very valid with the average value on syllabus 3.81. While the learning plane (RPP) is 3.62, and student worksheet (LKPD) is 3.51, and test instrument is 3.45. (2) Limited test results shows the developed mathematical learning media in very practical category with score of 3.41. (3) Field test result shows the learning media developed is very practical, on teacher learning implementation observation sheet 3.62, on the student’s questionnaire 3.44. Finally, the developed learning media can be ready to use in the school.

Developing Hot Mathematics Task with Indonesian Heritage as Context to Assess Mathematical Literacy of Students in Primary School

The goal of this research produces a set of HOT mathematics tasks with Indonesian heritage as a context that is valid and practical to assess the mathematical literacy of students in primary school. The participants of the study were 120 students in primary school. The data was collected through documentation, questionnaire, test result, and interviews. This is design research using a type of development research with formative evaluation. The mathematics task not only reviewed by 7 experts, who assess the context, content, and language of prototype but also beyond empirical evaluation of validation and reliability testing. The field test result showed that the HOT mathematics task has a potential effect on the mathematical literacy of primary school students.

PENGEMBANGAN MEDIA VIDEO PEMBELAJARAN DENGAN MODEL PENGEMBANGAN 4D PADA MATA PELAJARAN AGAMA HINDU

AbstrakSeiring perkembangan teknologi yang sangat cepat menyebabkan nilai-nilai agama kurang di perhatikan, sehingga dalam pembelajaran siswa hanya mengetahui namun tidak memahami, padahal ilmu agama merupakan ilmu yang di gunakan sebagai pedoman hidup. Pemahaman siswa terhadap ilmu agama di sebabkan oleh proses pembelajaran yang masih menggunakan metode pembelajaran konvensional tanpa memberikan contoh-contoh konkret dalam proses pembelajaran, sehingga menyebabkan kurangnya pemahaman siswa dan tidak tecapainya hasil belajar secara maksimal. Penelitian ini bertujuan untuk (1) mendeskripsikan rancang bangun video pembelajaran, (2) mendeskripsikan kualitas hasil validitas pengembangan video pembelajaran menurut para ahli dan uji coba produk, (3) mengetahui efektivitas video pembelajaran. Analisis menggunakan analisis deskriptif kualitatif, deskriptif kuantitatif dan analisis statistik inferensial (uji-t). model pengembangan yang di gunakan adalah model 4D, video pembelajaran Agama Hindu valid dengan: (a) hasil review ahli isi mata pelajaran menunjukkan produk berpredikat sangat baik (93,3%), (b) hasil review ahli media menunjukkan produk berpredikat sangat baik (98,6%), (c) hasil review ahli desain pembelajaran menunjukkan produk berpredikat sangat baik (93,8%), (d) hasil uji perorangan menunjukkan produk berpredikat sangat baik (94,76%), hasil uji kelompok kecil menunjukkan produk berpredikat sangat baik (95,9%). Hasil uji lapangan menunjukkan produk berpredikat sangat baik (95,98%). Efektivitas pengembangan menunjukkan bahwa video pembelajaran Agama Hindu yang dikembangkan efektif meningkatkan hasil belajar Agama Hindu (thitung = 11,368 > ttabel = 2,042 pada taraf signifikansi 5%). artinya produk terbukti efektif secara signifikan dapat meningkatkan hasil belajar Agama Hindu. Kata-kata kunci : 4D, Agama Hindu, Video Pembelajaran AbstractAlong with quick technological development caused religious value less be cared, so that in learning proces, students only knew but did not understand religion besides religion is a science used as life orientation. Students understanding of religion were caused by learning proces that still used convensional learning method without giving concrete examples in learning proces so as caused students lavk of understanding and not achieving maximum students learning outcomes. This research was intended to describe a Hindu learning video, described/explained the result quality of Hindu developing validity learning videos according to experts and product trial, to find out the effectiveness of Hindu learning video. Data analysis used were qualitative descriptive analysis tecnique, deskriptif kuantitatif dan analisis statistik inferensial (uji-t). Developing model used was 4D model, (2) valid Hindu learning video with: review result of subject matter experts showed learning videos of Hindu predicated very well (93.3%), review result of media expert showed the design predicated very well (98,6%), review result of learning design expert showed Hindu learning video predicated very well (93,8%), individual test result showed Hindu learning video predicated very well (94,76%), small group test result showed Hindu learning video predicated very well (95,9%). Field test result showed product predicated very well (95,98%). (3) developing effectiveness showed Hindu learning video which effectively developed increasing result study of Hindu religion (t count = 11,368> t table = 2,042 at the significance level of 5%). It means Hindu learning video proven effective in improving the learning outcomes of Hindu effectively. Keywords: 4D, Learning Video, Hindu

Pengembangan Modul Analisis Volumetri Berbasis Standar Kompetensi Kerja Nasional Indonesia (SKKNI) pada LSP P1 Analis Kimia SMK-SMAK Makassar

ABSTRAKTujuan penelitian ini adalah untuk mengetahui desain/alur kerja pengembangan modul melaksanakan analisis volumetri berbasis SKKNI, CBT dan pembelajaran mandiri dan untuk mengetahui kualitas modul yang telah dikembangan sampai pada hasil uji coba lapangan skala luas. Pegembangan modul melaksanakan analisis volumetri berbasis SKKNI di LSP P1 Analis Kimia SMK-SMAK Makassar berpedoman pada langkah-langkah pokok pengembangan Borg & Gall (1983) yang dikombinasikan dengan langkah-langkah pengembangan modul yang terdapat dalam panduan Direktorat Jenderal Peningkatan Mutu Pendidik dan Tenaga Pendidik Kementerian Pendidikan. Modul yang dikembangkan yaitu: Panduan modul, Buku informasi, Buku Kerja dan Buku Penilaian. Ditinjau dari ketepatan cakupan isi, penggunaan bahasa, tampilan, sajian dan kelengkapan modul telah divalidasi oleh tiga orang ahli dan hasilnya valid dan reliabel. Berdasarkan uji validitas korelasi bivariate product moment dan uji reliabilitas koefisien Alpha Cronbach prestasi hasil belajar setelah mempelajari modul dengan software SPSS 22 diperoleh hasil modul melaksanakan analisis volumetri telah valid dan reliabel. Hasil uji coba oleh empat orang asesor atau 100% dan 38 dari 40 atau 92,50% peserta uji kompetensi memberikan respon positif mengenai penggunaan modul sebelum uji kompetensi, dengan demikian telah terpenuhi aspek kepraktisan. Tingkat ketuntasan belajar siswa diukur dari prestasi belajar kognitif dan psikomotorik setelah mempelajari modul sebesar 97,50% telah memenuhi kriteria keefektifan.Kata kunci: SKKNI, CBT, Valid dan Reliabel ABSTRACTThe objectives of the research are to discover the design/workflow of volumetric analysis module based on SKKNI (Indonesian National Work Competence Standart), CBT, and independent learning to discover the quality of module developed until lerge scale field test result. The development of volumetric analysis module based on SKKNI in LSP P1 of Chemistry Analysis of SMK-SMAK Makassar is based on basic stages by Borg & Gall’s (1983) development stages combined with module development stages contained in Directorarate General of Educator and Teacher Quality Improvement of Education Minister guide. The module developed re: Module Guide, Information Book, Work Book and Assessment Book. In terms of content coverage accuracy, languange usange, display, course and completeness of the module had been validated by three experts and the result is valid and reliable. Based on validity test of bivariate product moment correlation and reliability test of Alpha Cronbach coefficient of learning result achievement and after studying the module with SPSS 22 software, it is obtained the result of volumetric analysis module is valid and reliable. The test result based on four assessor is 100% or 38 out of 40 or 92,50% of competency test give positive response on the untilization of module before competency test; therefore, practicality aspect had been fulfilled. The students’ learning completeness levels measured from cognitive and psychomotor learning achievements after studying the module is 97,50% which had fulfilled effectiveness criteriaKeywords: SKKNI, CBT, valid and reliable

PENGEMBANGAN BAHAN AJAR DAN PENILAIAN OTENTIK MATA KULIAH PENDIDIKAN IPA SEKOLAH DASAR

This study aims to produce teaching materials and assessment of authentic courses of education IPA in Elementary School decent and effective. This research is a research and development. consisting of nine stages, namely: (1) preliminary study, (2) planning, (3) initial product development, (4) initial test, (5) revision to compose the main product, (6) field trial, (7) ) revisions to improve the product of field trial results, (8) field implementation tests, and (9) final product revisions. The results of the study as follows. (1) Feasibility assessment of IPA material experts and science evaluation experts with good criteria with an average rating of 3.8, assessment of IPA materials with an average rating of 4.08, Trial is limited to Good criteria and field implementation trials with good criteria. The effectiveness of product development of gain score calculation know knowledge aspect (knowledge) obtained index of gain equal to 0,71 with High category, Field test result which done in three classes got average result as follows, Student who give Very Good response 27, 2%, good student response with average percentage 54,91%, Student Response with Good enough category 16,27%, while for Student response with Less category equal to 0,66% and Less once 0,99% .