Lintasan Pembelajaran Pecahan Menggunakan Matematika Realistik Konteks Permainan Tradisional Siki Doka

Fraction is one of hard subject of mathematics. Fractional complexity is not only experienced by students, but also students and teachers. They found difficulty to solve any mathematics problems related to fractions due to weak of fraction concept and disspointed learning method. Because teachers in elementary taught them using lecture method through routin algorthm. Teacher began the lessons by given short explanation, then some routin example provided on students' text book. In the end of the lessons students did some exercise, Edo.I. S (2016). Therefore, students bored to follow all of learning process. Whereas Elly Risman (2008) said that there are three effective ways to teach children i.e. by playing, singing and storytelling. While Mathematics learning approach which assume that mathematics as human activity is Realistics Mathematics Education (RME). Therefore, this study aimed to design simple fraction learning trajectory using RME approach through traditional game namely siki Doka as a context. The Research method used in this research is Design Research which conducted in SDN Angkasa Kupang and SDK. Tunas Bangsa Kupang in the third grade students. The result showed that students were very enthusiastic and enjoy all the learning activities because they learned while playing, drawing, Coloring, cutting and arrange colorful origami paper. Students not only understand the concept of simple fractions, compare simple fractions, and solve problems related to simple fractions as well they are already involved in the activities to found the concept of fractional addition and its multiples. Keyword: Fractional Learning, Concepts of Fraction, comparing fraction, Fractional Learning using RME approach, fraction learning using traditional game

Lintasan Pembelajaran Pecahan Menggunakan Matematika Realistik Konteks Permainan Tradisional Siki Doka

Fraction is one of hard subject of mathematics. Fractional complexity is not only experienced by students, but also students and teachers. They found difficulty to solve any mathematics problems related to fractions due to weak of fraction concept and disspointed learning method. Because teachers in elementary taught them using lecture method through routin algorthm. Teacher began the lessons by given short explanation, then some routin example provided on students\u27 text book. In the end of the lessons students did some exercise, Edo.I. S (2016). Therefore, students bored to follow all of learning process. Whereas Elly Risman (2008) said that there are three effective ways to teach children i.e. by playing, singing and storytelling. While Mathematics learning approach which assume that mathematics as human activity is Realistics Mathematics Education (RME). Therefore, this study aimed to design simple fraction learning trajectory using RME approach through traditional game namely siki Doka as a context. The Research method used in this research is Design Research which conducted in SDN Angkasa Kupang and SDK. Tunas Bangsa Kupang in the third grade students. The result showed that students were very enthusiastic and enjoy all the learning activities because they learned while playing, drawing, Coloring, cutting and arrange colorful origami paper. Students not only understand the concept of simple fractions, compare simple fractions, and solve problems related to simple fractions as well they are already involved in the activities to found the concept of fractional addition and its multiples. Keyword: Fractional Learning, Concepts of Fraction, comparing fraction, Fractional Learning using RME approach, fraction learning using traditional game

Program Kemitraan Masyarakat: Perancangan Praktikum Matematika dan IPA Sederhana bagi Guru SMP

This community service activity improves teacher skills in carrying out simple Mathematics and Natural Sciences practical activities. This activity is designed in the form of training through several stages, namely 1) coordinating with partner schools for implementation time, 2) providing material related to simple mathematics and science practicum, 3) Mentoring for Mathematics and Natural Sciences teachers in designing simple practicums, and 4) program evaluation. Participants in this activity were several Mathematics and Natural Sciences teachers from SMP N 1 Nekamese, SMP N 2 Nekamese, SMP N 4 Nekamese, and SMP N 5 Nekamese. In the training activities, the participants were quite enthusiastic in participating in the activities, which could be seen from the enthusiasm to participate in the activities and dynamic discussions. Based on the final test results, there was an increase in the teacher's ability before and after the training with an n-gain value in the high category

APE Results of Hadron Masses in Full QCD Simulations

We present numerical results obtained in full QCD with 2 flavors of Wilson fermions. We discuss the relation between the phase of Polyakov loops and the {\bf sea} quarks boundary conditions. We report preliminary results about the HMC autocorrelation of the hadronic masses, on a $16^3 \times 32$ lattice volume, at $\beta=5.55$ with $k_{sea}=0.1570$.Comment: 3 pages, compressed ps-file (uufiles), Contribution to Lattice 9

EFEKTIVITAS PROBLEM BASED LEARNING (PBL) UNTUK MENINGKATKAN KEMAMPUAN PEMECAHAN MASALAH SISWA PADA MATERI TRIGONOMETRI

Tujuan penelitian ini adalah mendeskripsikan perbedaan peningkatan kemampuan pemecahan masalah, perbedaan peningkatan indikator kemampuan pemecahan masalah, serta pengaruh interaksi model pembelajaran dan gender terhadap peningkatan kemampuan pemecahan masalah matematis siswa. Penelitian ini dilakukan di SMA Negeri 1 Kupang dengan sampel berjumlah 91 siswa yang terdiri dari kelas eksperimen sebanyak 46 siswa, dan kelas kontrol 45 siswa. Analisis data menggunakan statistik deskriptif, n-gain, uji normalitas dan homogenitas, uji hipotesis dengan uji statistik t atau Mann-Whitney serta uji Anova dua jalur. Hasil penelitian dan analisis dapat disimpulkan : 1) kemampuan pemecahan masalah siswa yang diajarkan dengan pembelajaran berbasis masalah pada materi trigonometri lebih tinggi dari siswa yang diajarkan dengan pembelajaran biasa dengan n-gain kelas eksperimen 0,60 dan kelas kontrol 0,45; 2) peningkatan rata-rata indikator kemampuan pemecahan masalah pada indikator memahami masalah, merencanakan pemecahan, dan memeriksa kembali pada siswa yang diajarkan dengan pembelajaran berbasis masalah pada materi trigonometri lebih tinggi dari siswa yang diajarkan dengan pembelajaran biasa; dan 3) tidak ada pengaruh gender pada kemampuan pemecahan masalah siswa dan juga tidak ada pengaruh interaksi model pembelajaran dan gender terhadap peningkatan kemampuan pemecahan masalah siswa

Literasi Matematis Siswa Sekolah Menengah di Kabupaten Kupang

Tujuan penelitian ini adalah 1) mengukur level literasi matematika siswa sekolah menengah di Kabupaten Kupang, dan 2) mengetahui perbedaan literasi matematika siswa sekolah menengah di Kabupaten Kupang ditinjau dari perbedaan gender, kemampuan matematika, dan status sosial ekonomi. Penelitian ini merupakan penelitian kuantitatif dengan metode survei. Populasi dalam penelitian ini adalah seluruh siswa SMA/K Kelas X di Kabupaten Kupang. Teknik penarikan sampel yang digunakan adalah cluster random sampling dengan pemilihan sampel dalam tiap cluster sebanyak 1 kelas untuk sekolah. Instrumen yang digunakan dalam penelitian ini adalah (1) soal tes literasi matematika yang diambil dari soal tes PISA tahun 2006 dan 2012 yang terdiri dari 12 soal dengan konten change and relationship, shape and space, quantity, uncertainty, dan (2) angket latar belakang siswa yang berisi biodata siswa, keluarga, sekolah, pengalaman belajar matematika di sekolah. Analisis data menggunakan statistik deskriptif, uji Mann Whitney dan uji Kruskal Wallis. Hasil penelitian menunjukan level literasi siswa berada pada level sedang (6,7%), level rendah (76,7%), dan sangat rendah (16,7%). Tidak terdapat perbedaan literasi matematika siswa yang signifikan berdasarkan tinjauan perbedaaan gender dan perbedaan status sosial ekonomi, serta terdapat perbedaan literasi matematika siswa yang signifikan berdasarkan  tinjauan kemampuan matematik

ANALISIS KESALAHAN MAHASISWA DALAM MENYELESAIKAN SOAL CERITA TURUNAN PARSIAL

Tujuan penelitian ini adalah menganalisis kesalahan mahasiswa dalam menyelesaikan soal cerita pada materi turunan parsial. Soal cerita turunan parsial merupakan soal aplikasi dalam berbagai bidang yang dapat diselesaikan dengan prosedur turunan parsial. Jenis penelitian adalah penelitian deskriptif kualitatif. Penelitian ini dilaksanakan pada Program Studi Pendidikan Matematika FKIP Undana dengan subjek penelitian ini adalah mahasiswa semester III angkatan 2017 sebanyak 37 orang. Instrumen dalam penelitian ini adalah peneliti sendiri serta soal tes turunan parsial dan pedoman wawancara. Analisis data yang digunakan adalah analisis data kualtiatif yang terdiri dari dua jenis yakni analisis data tes tertulis menggunakan tahapan Newman dan analisis data wawancara menggunakan tahapan reduksi data, penyajian data dan penarikan kesimpulan. Hasil penelitian menununjukkan sebagain besar subjek melakukan kesalahan transformasi soal yakni kesalahan dalam membuat model matematis, menentukan rumus, dan mengetahui operasi hitung yang digunakan. Kondisi ini disebabkan karena kurangnya pemahaman dan kemampuan dasar dalam mengaitkan berbagai konsep untuk memudahkan operasi matematika untuk menyelesaikan soal

Modelling how curved active proteins and shear flow pattern cellular shape and motility

Cell spreading and motility on an adhesive substrate are driven by the active physical forces generated by the actin cytoskeleton. We have recently shown that coupling curved membrane complexes to protrusive forces, exerted by the actin polymerization that they recruit, provides a mechanism that can give rise to spontaneous membrane shapes and patterns. In the presence of an adhesive substrate, this model was shown to give rise to an emergent motile phenotype, resembling a motile cell. Here, we utilize this “minimal-cell” model to explore the impact of external shear flow on the cell shape and migration on a uniform adhesive flat substrate. We find that in the presence of shear the motile cell reorients such that its leading edge, where the curved active proteins aggregate, faces the shear flow. The flow-facing configuration is found to minimize the adhesion energy by allowing the cell to spread more efficiently over the substrate. For the non-motile vesicle shapes, we find that they mostly slide and roll with the shear flow. We compare these theoretical results with experimental observations, and suggest that the tendency of many cell types to move against the flow may arise from the very general, and non-cell-type-specific mechanism predicted by our model

Налоговое стимулирование инвестиций частных инвесторов в облигации в Российской Федерации

The paper addresses the specificities of tax incentives in the form of tax reliefs designated for individual investors, who invest in bonds in the Russian Federation. The need for the use of tax incentives to encourage individual investors to purchase bonds is regarded as an integral aspect of the bondization, announced by the Bank of Russia. The objective of this paper is to analyze the specific features of the investment tax relief implementation in the Russian Federation and to reveal issues that remain controversial and require particularization. It was found that stimulation of investment through tax is widely studied by foreign scientists; however, it is almost completely disregarded in Russia. The following tax innovations related to investments of individual Russian investors were analyzed: tax relief for coupon income, derived from corporate bonds; investment tax deductions (individual investment account and long-term capital gains exemption); long-term capital gains exemption for securities of the high-tech (innovation) sector of economy. Reconciliation schemes for the above-mentioned reliefs were identified. Insufficiency of quantitative data for the effectiveness evaluation of tax relief for individual investors was revealed, which was explained by the short validity period of this relief. The authors proved the absence of a uniform system tax relief instruments for individual investors and found that bond holders have more tax relief options, compared to share holders of other investment instruments. In this context, it was proposed to make amendments to the Tax Code of the Russian Federation in order to ensure tax equalization with relation to derivative instruments, designed on the basis of bonds, mutual fund units). In addition, it was recommended to adjust a number of technical aspects, connected with tax relief application and to evaluate the effectiveness of the reliefs under study.Highlights1. A tendency towards emergence of a tax relief system for individual investors is revealed in the context of the active development of the bond market in the Russian2. In the Russian Federation, there are a number of tax reliefs for bond holders, including coupon income exemption from tax and investment tax deductions, which are not bound into a uniform system3. Reconciliation of tax reliefs for individual investors is possible; however, there are issues that remain controversial and require particularization4. The current tax reliefs for individual investors require improvement. It is important to make certain amendments to the Tax Code of the Russian Federation and evaluate the effectiveness of tax reliefsFor citationBelomyttseva O. S., Grinkevich L. S., Grinkevich A. M., Bobek S., Tominc P. Tax incentives for bond-oriented individual investors: evidence from the Russian Federation. Journal of Tax Reform, 2018, vol. 4, no. 2, pp. 108–124. DOI: 10.15826/jtr.2018.4.2.047Article infoReceived June 6, 2018; accepted July 12, 2018 Статья посвящена анализу особенностей налогового стимулирования инвестиций частных инвесторов в облигации в РФ. Необходимость налогового стимулирования приобретения облигаций частными инвесторами отмечена как составная часть стратегии бондизации, заявленной Банком России. Целью настоящей статьи является анализ специфики применения инвестиционных налоговых льгот в РФ, выявление спорных и требующих конкретизации вопросов. Отмечены широкое освещение темы налогового стимулирования инвестиций в иностранной периодической литературе и практически полное игнорирование данной тематики отечественными авторами. В статье проанализированы налоговые новации в области инвестиций российских частных инвесторов: льгота по купонному доходу корпоративных облигаций, инвестиционные налоговые вычеты (индивидуальные инвестиционные счета и льгота по долгосрочному владению ценными бумагами), льгота по долгосрочному владению ценными бумагами высокотехнологичного (инновационного) сектора экономики. Определены возможности совмещения вышеназванных льгот. Отмечен недостаток количественных данных для оценки эффективности налоговых льгот для частных инвесторов вследствие короткого периода их действия. Авторы пришли к выводу относительно отсутствия единой системы предоставления льгот частным инвесторам и более широком льготировании облигаций в сравнении с прочими инструментами. Конкретным результатами работы можно считать констатацию необходимости внесений изменений в НК РФ с целью выравнивания налогообложения по производным инструментам, созданным на основе облигаций, паям паевых инвестиционных фондов и корректировки ряда технических моментов применения льгот, а также оценку эффективности описанных льгот.Основные положения 1. Формирования системы налоговых льгот для частных инвесторов в РФ имеет место в рамках активного развития рынка облигаций2. В РФ существует ряд налоговых льгот для владельцев облигаций, включая льготу по купонному доходу и инвестиционные налоговые вычеты, не связанных между собой единой системой3. Совмещение налоговых льгот для частных инвесторов возможно, однако существуют спорные и требующие конкретизации вопросы4. Логично реформирование системы налоговых льгот для частных инвесторов в РФ, включая необходимость внесения изменений в НК РФ и оценку эффективности льготДля цитирования Беломытцева О. С. Налоговое стимулирование инвестиций частных инвесторов в облигации в Российской Федерации / О. С. Беломытцева, Л. С. Гринкевич, А. М. Гринкевич, C. Бобек, П. Томинц // Journal of Tax Reform. — 2018. — Т. 4, № 2. — С. 108–124. — DOI: 10.15826/jtr.2018.4.2.047Информация о статье Дата поступления 6 июня 2018 г.; дата принятия к печати 12 июля 2018 г.