417 research outputs found

    Self Awareness Siswa Madrasah Aliyah dalam Pembelajaran Matematika

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    Penelitian ini bertujuan untuk mengetahui self awareness siswa Madrasah Aliyah ditinjau dari jenis kelamin dan kemampuan matematika (tinggi, sedang, dan rendah), baik secara keseluruhan maupun tiap indikator (emotional awareness, accurate self assessment, dan self confidence). Jenis penelitian yang digunakan adalah penelitian kuantitatif. Populasi penelitian ini adalah siswa Madrasah Aliyah di Yogyakarta dengan sampel siswa di 2 Madrasah Aliyah. Instrumen pengumpulan yang digunakan adalah kuesioner self awareness dan dokumen nilai matematika. Analisis data yang digunakan adalah uji-t dan ANOVA. Hasil penelitian menunjukkan bahwa tidak ada perbedaan Self Awareness antara siswa laki-laki dan siswa perempuan, baik self awareness secara keseluruhan maupun tiap indikator self awareness yaitu emotional awareness, self awareness, dan accurate self assessment dan tidak ada perbedaan self awareness antara siswa dengan kemampuan tinggi, siswa dengan kemampuan sedang, dan siswa dengan kemampuan rendah, baik self awareness secara keseluruhan maupun tiap indikator self awareness yaitu emotional awareness, self awareness, dan accurate self assessment. Hasil ini menunjukkan bahwa pembelajaran matematika belum mampu memberi dampak maksimal terhadap self awareness siswa

    Penanaman Karakter Penalaran Matematis dalam Pembelajaran Matematika melalui 1 Pola Pikir Induktif-Deduktif

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    One of the mathematics learning purposes is using reasoning in patterns and properties, mathematical manipulation in making generalization, compiling evidence, or explaining mathematical ideas and statements. Mathematical learning based on behaviorism has been seen as less successful in instilling character of mathematics reasoning. Therefore, it is necessary to find alternative learning not only teaching but instilling character of mathematical reasoning. This paper offers constructivist in mathematics learning, which is one of the ways to involve the use of inductive-deductive thinking. Activities that involve students learning to use the inductive-deductive mindset needs to be designed and implemented by teachers. Using inductive thinking can be conditioned, especially in the process of understanding a concept or generalization. Deductive thought patterns can be conditioned to improve mathematical reasoning, for example, in the proofing. The mindset of inductive and deductive mathematical reasoning is difficult to separate in the mathematical reasoning therefore it is regarded involving the use of inductive-deductive thinking

    Rel principal cultivo de la Argentina : la soja: riesgos y ventajas

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    Fil: Alvarez, Carina. Universidad de Buenos Aires. Facultad de Agronomía; Argentina.Fil: Mulin, Eduardo. Universidad de Buenos Aires. Facultad de Agronomía; Argentina.Frente al proceso de expansión del cultivo de la soja es preciso reflexionar acerca de sus\nconsecuencias a propósito de la sustentabilidad de los sistemas productivos. La gran expansión de la\nsoja se ha apoyado en su capacidad para producir satisfactoriamente en distintos ambientes\nagroecológicos, la posibilidad de implantar un cultivo estival como segunda siembra, luego de uno de\ninvierno (por ej.: trigo, avena, cebada, etc.) y por presentar un bajo requerimiento de inversión en\ncapital, y ser el cultivo que se realiza en mayor proporción bajo el sistema de siembra directa. Pero la\nsoja presenta también factores que ponen en riesgo la sustentabilidad, como la fuerte tendencia al\nmonocultivo, el balance negativo de nutrientes "consume más de lo que aporta" y el bajo aporte de\nresiduos de cosecha al suelo

    FORMATEURS DE MIDI-PYRENEES ET FORMATION DE FORMATEURS : PRATIQUES, ATTENTES ET REPRESENTATIONS PROFESSIONNELLES

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    International audienceFrom the first results of a research on the professional thought of the trainers, made up on the basis of a study for the Midi-Pyrénées region, this article tackles the question of the representations developed by the trainers in connection with their own training. The analysis of the results confirms that the trainers in a precarious professional situation do not wish to be trained. The trainers with a more stable employment foresee a training. However, their expectations in this field are not homogeneous. They take support both on the nature of their practices and on different utopian and ideological elements, which come from the historical development of the movements of Popular and Permanent Education or from professional training organisations.A partir des premiers résultats d'une recherche sur la pensée professionnelle des formateurs, constitués sur la base d'une étude pour la Région de Midi-Pyrénées, cet article aborde la question des représentations élaborées par les formateurs à propos de leur propre formation. L'analyse des résultats confirme que les formateurs dans une situation professionnelle précaire ne souhaitent pas se former. Ce sont les formateurs aux emplois plus stables qui envisagent une formation. Cependant leurs attentes dans ce domaine ne sont pas homogènes. Elles prennent appui à la fois sur la nature de leurs pratiques et sur des éléments utopiques et idéologiques différents, repris du développement historique des mouvements de l'Education Populaire et Permanente ou des organismes de formation professionnelle

    EFEKTIVITAS MODEL PROBLEM BASED LEARNING TERHADAP HASIL BELAJAR DAN DISPOSISI MATEMATIS SISWA KELAS 11

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    Matematika merupakan mata pelajaran yang diajarkan sejak jenjang sekolah dasar hingga sekolah menengah atas. Selain keterampilan kognitif, matematika juga memerlukan aspek afektif, salah satunya adalah disposisi matematis. Oleh karena itu, diperlukan upaya untuk meningkatkan hasil belajar dan disposisi matematis, salah satunya dengan menggunakan model pembelajaran problem based learning. Penelitian ini bertujuan untuk melihat efektivitas model pembelajaran problem based learning terhadap hasil belajar dan disposisi mateamtis siswa kelas XI di salah satu SMA Swasta Yogyakarta. Metode penelitian menggunakan eksperimen semu (quasi eksperiment) dengan desain post-test only control group. Populasi dalam penelitian ini adalah seluruh siswa kelas XI di salah satu SMA swasta Yogyakarta. Pengambilan sampel menggunakan teknik simple random sampling yang terdiri dari 20 siswa di kelas eksperimen dan 20 siswa di kelas kontrol. Pengumpulan data menggunakan soal matematika materi matriks dan skala disposisi matematis. Teknik analisis data yang digunakan adalah uji Mann Whitney. Berdasarkan hasil analisis dapat disimpulkan bahwa terdapat perbedaan hasil belajar matematika siswa di kelas eksperimen dan kelas kontrol. Namun, tidak terdapat perbedaan disposisi matematis siswa antara kelas eksperimen dan kontrol

    Ojo Kawin Bocah Peran Komunikasi Keluarga dalam Pencegahan Pernikahan Anak di Kecamatan Keling Kabupaten Jepara

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    The large number of child marriage cases in Indonesia has resulted in various new problems such as the disconnection of school children, the increase in divorce cases, the increasing mortality rate for mothers and children during the delivery process, the number of stunting cases and other problems. Looking at the various problems that exist, there is a change in the marriage law from Law No. 1 of 1974 to Law No. 16 of 2019 that marriage can be carried out by both men and women when they are 19 years old. Through the Asset Bassed Community Development (ABCD) method, Community Service (PkM) activities are carried out by providing counseling to the community (parents and children) in Klepu Village and Watuaji Village, Keling District to provide an understanding of the Importance of Family Communication in preventing child marriage. With this PkM, it is hoped that it will be able to provide understanding to the community so that awareness arises about the dangers and impacts of child marriage and can reduce cases of child marriage

    Computational methods for geochemical modelling: applications to carbon dioxide sequestration

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    Geochemical modelling is fundamental for solving many environmental problems, and specially useful for modelling carbon storage into deep saline aquifers. This is because the injected greenhouse gas perturbs the reservoir, causing the subsurface fluid to become acidic, and consequently increasing its reactivity with the formation rock. Assessment of the long term fate of carbon dioxide, therefore, requires accurate calculations of the geochemical processes that occur underground. For this, it is important to take into account the major water-gas-rock effects that play important roles during the gas storage and migration. These reactive processes can in general be formulated in terms of chemical equilibrium or chemical kinetics models. This work proposes novel numerical methods for the solution of multiphase chemical equilibrium and kinetics problems. Instead of adapting or improving traditional algorithms in the geochemical modelling literature, this work adopts an approach of abstracting the underlying mathematics from the chemical problems, and investigating suitable, modern and efficient methods for them in the mathematical literature. This is the case, for example, of the adaptation of an interior-point minimisation algorithm for the calculation of chemical equilibrium, in which the Gibbs energy of the system is minimised. The methods were developed for integration into reactive transport simulators, requiring them to be accurate, robust and efficient. These features are demonstrated in the manuscript. All the methods developed were applied to problems relevant to carbon sequestration in saline aquifers. Their accuracy was assessed by comparing, for example, calculations of pH and CO2 solubility in brines against recent experimental data. Kinetic modelling of carbon dioxide injection into carbonate and sandstone saline aquifers was performed to demonstrate the importance of accounting for the water-gas-rock effects when simulating carbon dioxide sequestration. The results demonstrated that carbonate rocks, for example, increase the potential of the subsurface fluid to dissolve even more mobile CO2.Open Acces
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