bluuebunny/crossref_metadata_2025_split huggingface dataset:
Analisis Kesulitan Siswa dalam Menyelesaikan Soal Cerita pada Materi Himpunan
Authors: Dwidarti Ufi , Mampouw Helti Lygia , Setyadi Danang 
Published: January 2020

Penelitian ini bertujuan untuk mengetahui kesulitan siswa dalam menyelesaikan soal cerita pada materi himpunan. Indikator kesulitan dalam penelitian adalah kesulitan dalam pemahaman konsep, kesulitan dalam menerapkan prinsip dan kesulitan dalam keterampilan. penelitian ini adalah penelitian deskriptif kualitatif. Subjek dalam penelitian ini adalah siswa kelas VIIB SMP Kristen Satya Wacana tahun ajaran 2018/2019, yaitu siswa yang memiliki kemampuan matematika tinggi, kemampuan matematika sedang, dan kemampuan matematika rendah. Hasil penelitian ini menunjukkan bahwa subjek berkemampuan matematika tinggi dan berkemampuan matematika sedang masih mengalami kesulitan dalam menerapkan prinsip dan keterampilan, sedangkan subjek berkemampuan matematika rendah masih mengalami kesulitan dalam memahami konsep, menerapkan prinsip, dan keterampilan
ANALISIS KEMAMPUAN PEMAHAMAN MATEMATIS PADA MATA KULIAH ALJABAR LINIER ELEMENTER
Authors: Ruswana Angra Meta 
Published: January 2020

This study aims to analyze the achievement of each indicator that measures the ability of students' mathematical understanding on the subjects of elementary linear algebra. This research is a qualitative descriptive research that seeks to describe the the ability of students' mathematical understanding analysis. The subjects of the study were students of level 2 mathematics education with 2 clasess consisting of 33 students. Data collection methods used includethe ability of students' mathematical test in elementary linear algebra which includes material of linear equation system, matrix and determinat. Based on the result of the research, it is concluded that the level of the ability of students' mathematical understanding elementary linear algebra is as follows: There are 6 students who got score below 50, there are 5 students who got score between 51 and 60, there are 9 students got score between 61 and 70, there are 5 students got score between 71 and 80, there are 6 students got score between 81 and 90 and there are 2 students got score 91 and up. Keywords: The Ability of Students' Mathematical Understanding, Elementary Linear Algebra.
Abstrak
Penelitian ini bertujuan untuk menganalisis ketercapaian setiap indikator yang mengukur kemampuan pemahaman matematis mahasiswa pada mata kuliah Aljabar Linier Elementer. Penelitian ini adalah penelitian deskriptif kualititatif yang berupaya untuk mendeskripsikan analisis kemampuan pemahaman matematis mahasiswa. Subjek penelitian adalah mahasiswa pendidikan matematika tingkat 2 sebanyak 2 kelas yang berjumlah 33 mahasiswa. Metode pengumpulan data yang digunakan meliputi tes kemampuan pemahaman matematis mahasiswa pada mata kuliah Aljabar Linier Elementer yang meliputi materi sistem persamaan linear, matriks dan determinan. Berdasarkan hasil penelitian disimpulkan bahwa tingkat kemampuan mahasiswa matematika pada mata kuliah Aljabar Linier Elementer adalah sebagai berikut: Terdapat 6 mahasiswa yang mendapat nilai di bawah 50, terdapat 5 mahasiswa yang mendapat nilai antara 51 dan 60, terdapat 9 mahasiswa yang mendapat nilai antara 61 dan 70, terdapat 5 mahasiswa yang mendapat nilai antara 71 dan 80, terdapat 6 mahasiswa yang mendapat nilai antara 81 dan 90 dan terdapat 2 mahasiswa yang mendapat nilai 91 ke atas. Kata kunci: Kemampuan Pemahaman Matematis, Aljabar Linier Elementer.
Pengembangan Soal Matematika Model PISA Konteks Kain Cual Bangka Belitung
Authors: Putra Yudi Yunika , Vebrian Rajab 
Published: January 2020

This study aims to Produce PISA model mathematical problems context kain cual Bangka Belitung that meets valid, practical, and potential effect on students abilities mathematical literacy based on Basic Mathematics Ability. The subject of this research is students SMP Negeri 5 Pangkalpinang class IX.A is amounts 35 student. The research method uses design research type development study. Data were analyzed description based on criteria literacy mathematic ability based on Basic Mathematics Ability. Result this research is obtained a set of PISA mathematical problems Context kain cual Bangka Belitung is valid, practical, and potential effect on students abilities mathematical literacy. Valid obtained at stage expert review and one to one practicality is known in stages small group, and ability mathematic literacy based result analysis the answer students and questionnaire on field test stage. Based the result analysis is obtained developed problems have a potential effect on mathematical literacy abilities namely bring up the Basic Mathematical Ability.
Newman Error Analysis Siswa Madrasah dalam Menyelesaikan Soal Cerita Matematika
Authors: Zulyanty Marni 
Published: January 2020

Students’ mistakes in solving the mathematical word problem is still a problem so it must be identified for each stage of solving. It is done so that the solutions offered are more effective. One way to identify the stage of solving of mathematical problem is the Newman Error Analysis stage. So the purpose of this research is to describe the ability of students of Islamic Junior High School to solve mathematical problems in the form of word problem and to describe the mistakes of high-ability Islamic High School students in mathematical word problem based on Newman Error Analysis. The approach used is qualitative descriptive. The research subject is the high-ability in Islamic Junior High School of Jambi City. Students are asked to work on solving questions in the form of word problems. Then the student interviewed about the mistakes that were made when solving the word problems given for each of the stages. The results showed 56% of high-ability students encountered an error while solving the algebra operation and 44% of high-ability students encountered an error while solving Pythagoras theorem. As for the errors that occur in high-ability students if in the analysis based on the stage of Newman Error Analysis occurs at the stage of understanding the problem (comprehension) and the problem transformation (transformation). Of course, errors in the comprehension and transformation cause errors at a later stage so that the solution or answer found is worth wrong.
Keywords: Error, Newman Error Analysis, Mathematical Word Problem.
Pengaruh Penerapan Model Pembelajaran Core Terhadap Kemampuan Pemecahan Masalah Matematis Berdasarkan Self-Confidence Siswa SMP/MTS
Authors: Ulfa Desnani , Rahmi Depriwana , Revita Rena 
Published: January 2020

Penelitian ini merupakan penelitian Quasi Eksperimen yang bertujuan untuk mengetahui: 1) Ada atau tidak perbedaan kemampuan pemecahan masalah matematis antara siswa yang memperoleh pembelajaran dengan model pembelajaran CORE dengan siswa yang memperoleh pembelajaran konvensional. 2) Ada atau tidak interaksi antara model pembelajaran CORE dan Self-Confidence terhadap kemampuan pemecahan masalah matematis siswa. Desain penelitian yang digunakan adalah The Nonequivalent Post-Test Only Control Group Design. Populasi dalam penelitian ini adalah seluruh siswa kelas VII semester genap SMP Negeri 1 Bangkinang Kota tahun ajaran 2018/2019. Teknik pengambilan sampel yang digunakan adalah Purposive Sampling, Teknik analisis data yang digunakan untuk hipotesis pertama adalah uji-t sedangkan untuk hipotesis kedua menggunakan anova dua arah. Hasil analisis data dengan menggunakan uji-t menunjukkan nilai sehingga dapat disimpulkan terdapat perbedaan kemampuan pemecahan masalah matematis antara siswa yang mengikuti model pembelajaran CORE dengan kemampuan pemecahan masalah matematis siswa yang tidak mengikuti model pembelajaran CORE. Hasil analisis data dengan menggunakan anova dua arah untuk menunjukkan interaksi sehingga dapat disimpulkan bahwa tidak terdapat interaksi antara model pembelajaran CORE dan self confidence terhadap kemampuan pemecahan masalah matematis siswa.
Implementasi Pendidikan Karakter Pada Matakuliah Matematika Sekolah Dasar Menggunakan Model CTL
Authors: Puspita Vivi , Mulyati Asrina , Maielfi Dini 
Published: January 2020

Pendidikan karakter dilakukan secara berkesinambungan mulai dari sekolah dasar hingga pergutuan tinggi. Pendidikan karakter penting dimiliki oleh mahasiswa dalam memasuki duni kerja. Nilai nilai-nilai karakter tersebut seperti hormat dan peduli pada orang lain, tanggung jawab, jujur, memiliki integritas, dan disiplin. Penelitian ini bertujuan untuk menghasilkan suatu modul pembelajaran yang mengintekgrasikan pendidikan karakter. Penelitian yang dilakukan merupakan penelitian pengembangan (research and development) dengan menggunakan model 4-D (four-D models) yang terdiri dari empat tahap. Keempat tahap itu adalah pendefinisian (define), perancangan (design), pengembangan (develop), dan penyebaran (disseminate). Pada artikel ini hanya membahas pada tahapan pendefinisian (define), dan perancangan (design). Instrumen pengumpulan data yang digunakan dalam penelitian ini adalah: Instrumen kevalidan, Instrumen kepraktisan, dan Instrumen keefektivan. Pengolahan data validitas modul menunjukan hasil valid sehingga modul dapat digunakan dalam perkuliahan.
Abstract
Character education is carried out on an ongoing basis starting from elementary school to college. Important character education is owned by students in entering the world of work. The values ​​of these characters such as respect and care for others, responsibility, honest, have integrity, and discipline. This study aims to produce a learning module that integrates character education. The research carried out is a research and development study using 4-D models (four-D models) consisting of four stages. The four stages are defining, designing, developing, and disseminating. In this article only discusses the stages of define, and design. Data collection instruments used in this study were: Validity instruments, practicality instruments, and effectiveness instruments. Data processing module validity shows valid results so the module can be used in lectures.
Abstract Keywords: character education, contextual teaching and learning, module
Water balance analysis on water management of organic System of Rice Intensification (organic-SRI) in West Java, Indonesia
Authors: Arif Chusnul , Setiawan Budi Indra , Saputra Septian Fauzi Dwi , Mizoguchi Masaru 
Published: January 2020

The System of Rice Intensification (SRI) has been known in Indonesia since 1999. However, there are some difficulties in utilizing SRI water management recommendations in the field, particularly in combination with organic nutrient management. While many demonstrations have given impressive gains in productivity, many farmers remain skeptical about applying this system. The current study was carried out to analyze water balance components in SRI paddy fields when applying intermittent irrigation. The experiment was conducted in Gabus Wetan village, Indramayu District, West Java, Indonesia from 17 Nov 2016 to 1 March 2017. We involved a local farmer who had been trained in SRI methods at an Organic SRI Center on how to conduct organic SRI management in his fields. Weather and soil sensors were set up in the fields to acquire data on daily field conditions as well as on plant growth. Data on weathers such as precipitation, air temperature, relative humidity, and wind speed were collected automatically during the season every 60 min, as well as the soil water depth. Analyzing the data collected, water balance analysis was well performed with low error (1.00%) in which the water inflows through precipitation and irrigation were 560 mm and 865 mm, respectively, while the outflows by crop evapotranspiration, percolation, and runoff were 430, 306 and 675 mm, respectively. Compared to conventional rice farming as commonly practices by applying continous flooding irrigation, water productivities of organic SRI were 30% and 27% higher with respect to total water input (WPIR) and with respect to the amount of evapotranspiration (WPET, respectively. Organic SRI produced 33% higher yield than that the average of conventional methods in the same subdistrict. The key was intermittent irrigation by maintaining shallow water depth (nearly soil surface) in the vegetative and generative stages. Therefore, it is an attractive option to farmers in irrigated areas where water resources is limited due to regional climate change effects. Keywords:Â Â Â Â Â Â Â
POLA SEBARAN ALAMI ANGGREK (Orchidaceae) DI CAGAR ALAM PADANG LUWAY KABUPATEN KUTAI BARAT
Authors: M Fitriany , Sumaryono Muhammad , Suhardiman Ali 
Published: January 2020

Cagar Alam Padang Luway merupakan salah satu habitat anggrek (Orchidaceae) di Kalimantan Timur. Untuk melakukan kegiatan pelestarian diperlukan data dan informasi dasar tentang faktor–faktor ekologi spesies anggrek yang ada serta pola penyebarannya sehingga dapat menjadi dasar pertimbangan dalam pengelolaannya. Penelitian ini dilakukan untuk mengetahui sebaran Anggrek dan komposisi spesies anggrek dengan menggunakan metode analisis vegetasi. Areal penelitian merupakan pulau-pulau anggrek yang terdapat di Cagar Alam Padang Luway. Berdasarkan hasil penelitian berdasarkan Indeks Dispersi Morisita Anggrek rata-rata mengelompok dan Quadrat Analysis sebaran anggrek mengelompok. Sedangkan nilai INP tertinggi adalah Coelogyne pandurata Lind 47,675 yang paling rendah adalah Bulbophylum sp. 1,686 dan Dendrobium sp. 1,686. Sebaran jenis–jenis anggrek di Cagar Alam Padang Luway hasil penelitian ini dapat dijadikan dasar pertimbangan dalam pengelolaan Cagar Alam Padang Luway dimasa yang akan datang
PENGELOLAAN KONFLIK DAN PEMETAAN BLOK PEMANFAATAN BERSAMA MASYARAKAT DI KHDTK LOA HAUR, KALIMANTAN TIMUR
Authors: Rifadi ELfa , Sumaryono Muhammad , Rujehan Rujehan 
Published: January 2020

Sebagai bagian kawasan yang terletak di KPA Taman Hutan Raya Bukit Soeharto, KHDTK Hutan Pendidikan dan Pelatihan (HPP) Loa Haur memiliki potensi dan ancaman yang sama dalam hal penebangan liar, penambangan liar, kebakaran dan perambahan. Perambahan diantaranya telah menimbulkan konflik kepentingan dalam pemanfaatan ruang di KHDTK Loa haur. Penelitian ini bertujuan untuk melakukan studi pengelolaan konflik dan menyediakan strategi pengelolaan bersama masyarakat dalam KHDTK Loa HPP Loa Haur. Penelitian dilakukan dalam 5 (lima) tahapan, yaitu pengumpulan peta dasar dan citra SPOT 6 interpretasi citra, pendataan perambahan, identifikasi kebijakan pengelolaan, pengelolaan konflik dan kelembagaan KTH. Pengelolaan konflik diantara dilakukan melalui grup diskusi yang terarah yang dilengkapi dengan analisis terhadap kekuatan, kelemahan, peluang dan tantangan yang tersedia. Dihipotesakan bahwa konflik dapat diubah menjadi satu kesepakatan yang dapat dipetakan dalam Sistem Informasi Geografis (SIG) dalam bentuk peta blok pemanfaatan ruang bersama masyarakat. Penelitian ini memberi hasil bahwa jumlah lahan yang dimanfaatkan sebanyak 20 lokasi lahan, dengan luas 43,58 ha dan rata-rata 2,18 ha. Jumlah lahan yang teridentifkasi pernah dimanfaatkan dan lalu ditelantarkan dan tanpa identitas adalah lebih banyak. Diindikasikan lahan-lahan tersebut disimpan (land bank) untuk motif ekonomi dari isu kandungan batubara di KHDTK HPP Loa Haur. Komoditi tanaman yang diusahakan adalah dari jenis karet dan buah-buahan (durian, lai dan rambutan). Jenis potensial untuk dapat dikembangkan dalam pemanfaatan ruang bersama masyarakat adalah Gaharu, Kopi dan Kakao. Jenis kelembagaan yang diperlukan untuk mendukung program Kemitraan Kehutanan adalah Kelompok Tani Hutan. Disamping itu, Forum Komunikasi KTH perlu diinisiasikan untuk membuka ruang komunikasi antara petani dengan pengelola sehingga menstimulasi kemajuan program ke depan.
PENGEMBANGAN EKOWISATA KAWASAN KONVERSI HUTAN MANGROVE KALIMANTAN TIMUR
Authors: Sarwo Eddi Wibowo Arwin Sanjaya, 
Published: January 2020

Ecotourism is a journey that has the purpose to conserve the environment and preserve the life and also the economic of the surrounding population around of the ecotourism. It is having the responsibility for the natural area also. Ecotourism can be seen as a concept of developing sustainable tourism, ecotourism purpose is to support environmental conservation efforts and can increase community participation in its management. Mangrove ecotourism is one of the popular ecotourism but has several problems. The problems are in its conservation activities itself. This study uses a qualitative descriptive approach and an interactive data analysis model. The results showed that the development of Ecotourism in the Mangrove Forest Conservation Area was carried out by local communities supported by the government, NGO, and the private sector through various programs that was helped by the local communities to continue and to become more productive in preserving and maintaining the natural environment of the mangrove area to be better aims in the future. The policy and role of the institutions in the Developing of Ecotourism (Ekowisata) in Mangrove Forest Conservation Areas it could be hoped to improve and increase the living standard of local communities if it is managed properly and correctly. The role of institutions are to give many contributions and also for providing
IMPLEMENTASI KEBIJAKAN PENGELOLAAN HUTAN PRODUKSI LESTARI DI KALIMANTAN TIMUR
Authors: Wibowo Sarwo Eddi , Zaini Muhammad 
Published: January 2020

The Natural Production Forest Management (NPFM) policy in East Kalimantan has led to massive deforestation and degradation of East Kalimantan’s natural forests. Until 2012, almost 70% of East Kalimantan,s natural forest production has been damaged, more than that 80% of East Kalimantan,s forestry business has gone bankrupt. While the ecological and social losses are not countless. This is inseparable form the weaknesses in the NPFM policy operating system. In the perspective of administrative science, the effectiveness of NPFM policy implementation is related to the six administrative principles (Max Weber) in NPFM policy. The six neglected administrative principles are : 1) The principle of specialization of organizational functions, resulting in overlapping organizational functions Bureaucracy, Corporations and Operations in NPFM operation; 2) the formal hierarchical structure principle, as result there is no NPFM tiered supervision system; 3) Priciple of formal rules and standard operating prosedures (SOP), as a result, the NPFM deviation since the process of licensing, implementation and distribution of results; 4) Impersonal relationships, as a result bureaucratic decisions tend not to be objective; 5) The principle of special competence (professional), consequently the NPFM operation results are not optimal; 6) The principle of employing is in accordance with competence, consequently the NPFM performance is poor.
EXAMINATION OF TEACHERS’ OPINIONS ABOUT HOMESCHOOLING SERVICE
Authors: Yıkmış Ahmet , Toprak Özlem , Kurtoğlu Seniha 
Published: January 2020

The goal of this research is to determine teachers’ opinions about the homeschooling service. Teachers participated in the research are the ones provided the homeschooling services in Sakarya City Centre within 2018-2019 school year. Qualitative research method has been used for the research and data has been collected via focus group discussion. Descriptive analysis technique has been used for analysing the obtained data. When the findings of the research are examined, participants who have been providing homeschooling services in a range of one to three years, stated that they had no prior information about homeschooling services, and they enhanced their knowledge level within the process of the education. Every single one of the participants specified that they all practiced observation and evaluation to determine educational performance and the needings of the students during the early weeks of homeschooling service, and afterwards they created individualized education plan (IEP) and figured the educational process according to this plan for their students. The lack of awareness about homeschooling, the families’ behaviours and experiencing insufficiency about the supplies are expressed as encountered problems within the homeschooling process. It is emphasized that the homeschooling service increases academic skills of the students while students’ distance from their peers and the social environment is a disadvantage.
Keywords: homeschooling, focus group discussion, persistent diseaseete
Effect of salinity stress on plant growth and root yield of carrot
Authors: Jahan I , Hossain MM , Karim MR 
Published: January 2020

This study was carried out at Horticulture Farm of Bangladesh Agricultural University, Mymensingh to evaluate the effects of different levels of NaCl salinity on plant growth and root yield of two carrot varieties during the period from November, 2016 to February, 2017. Four levels of NaCl salt concentration viz., 0 (Control), 50, 100 and 150 mM and two varieties of carrot namely Shundori and Kuruda were used for this pot experiment. The two-factor experiment was laid out in randomized complete block design with three replications. The yield and yield components varied significantly between two carrot varieties and intensity of salt concentration. The maximum plant height (33.92 cm), length of leaves (14.51 cm), fresh weight of leaves (9.62 g), percent dry matter content of leaves (21.25 %), length of root (9.05 cm), diameter (11.24 cm), dry matter content of roots (18.18 %) were produced by Shundori. On the other hand, maximum water content of leaves (80.89 %), water content of roots (84.57 %) and weight of roots (10.76 g) were exhibited by Kuruda. Most of the studied parameters showed decreasing trends with the highest level of salinity (200 mM NaCl) producing lowest weight of roots (3.93 g). In case of combined effects of variety and salt concentrations, Kuruda with control condition produced maximum weight of roots (20.62 g) while the minimum weight of roots (3.53 g) was obtained by the combination of Kuruda with the highest level of salt concentration (200 mM NaCl). The result of the experiment revealed that the salinity stress significantly reduced all studied parameters at 100 mM and 150 mM as compared to control and 50 mM NaCl. Therefore, it can be concluded that the variety of Kuruda was found as relatively salt tolerant than Shundori.
Progressive Agriculture 30 (3): 263-274, 2019
Status of soil properties in relationship with soil pH in Madhupur tract of Tangail district in Bangladesh
Authors: Kumar U , Rashid H , Tithi NH , Mia MY 
Published: January 2020

The study was intended to investigate the status of soil properties and its relation to soil pH in Madhupur tract soil of Tangail district, Bangladesh. Thirty soil samples were collected during the period from June-July, 2016 covering four types of land as high land, medium high land, medium low land and low land. The interpretative data showed that the range of pH was strongly acidic to slightly acidic (5.27- 5.90), mean pH was slightly acidic (5.61). The organic matter (OM) status was medium (2.11 to 2.33 %) and mean OM was medium (2.24 %). The Nitrogen (N) status was low (0.11 to 0.13 %) and mean N status was medium (0.12 %). The range of the Phosphorus (P) status was found very low to medium (1.63 to 11.06 µg g-1 soil) and mean P status was medium (7.37 µg g-1 soil). The Potassium (K) status was low to very high (0.15 to 0.75meq/100 g soil) and mean K status was low (0.18 meq/100 g soil). The range of the Sulfur (S) status was found from low to medium (11.73 to 16.31 µg g-1 soil), mean S status was low (13.26 µg g-1 soil). The range of the Zinc (Zn) status was found from medium to high (0.96 to 2.23 µg g-1 soil), mean Zn status was optimum (1.55 µg g-1 soil). The range of the Boron (B) status was found from medium to very high (0.39 to 0.86 µg g-1 soil), mean B status was high (0.73 µg g-1 soil). The Calcium (Ca) status was medium to optimum (4.42 to 5.23meq/100 g soil), mean Ca status was optimum (4.83 meq/100 g soil). The Magnesium (Mg) status was optimum to high (1.21 to 1.75meq/100 g soil), mean Mg status was optimum (1.37 meq/100 g soil). No significant correlation of OM and other nutrients with pH.
Progressive Agriculture 30 (3): 282-287, 2019