Penelitian ini bertujuan mengetahui apakah model pembelajaran Problem Based Learning (PBL) terhadap pemahaman konsep fisika siswa efektif. Penelitian ini merupakan penelitian eksperimen dimana terdapat kelas control dan kelas eksperimen, populasi dalam penelitian ini adalah seluruh siswa kelas XI SMA Negeri 4 Cirebon, dengan sampelnya adalah kelas XI MIPA 1 sebagai kelas eksperimen dan XI MIPA 2 sebagai kelas control. Adapun desain penelitiannya adalah Pretest-Posttest Control Group Design, dengan prosedur penelitiannya yaitu tahapan persiapan, tahapan pelaksanaan dan tahapan evaluasi dan metode pengupulan datanya terdiri dari dokumentasi, tes, dan observasi. Instrumen yang digunakan adalah butir soal pemahaman konsep berbentuk tes uraian. Tes pemahaman konsep digunakan untuk mengetahui pemahaman konsep fiika dengan indikator pengetahuan Taksonomi Bloom yang direvisi oleh Anderson dan Krathwohl, meliputi kemampuan mengingat (C1), memahami (C2), menerapkan (C3), menganalisis (C4), serta mengevaluasi (C5). Hasil penelitian menunjukkan bahwa penerapan PBL dapat meningkatkan kemampuan pemahaman konsep siswa, dan penerapan PBL lebih efektif untuk meningkatkan kemampuan pemahaman konsep siswa dari pada metode ceramah biasa.
Fishing industry is not only concern about sustainability, but also ensuring health quality of fish sold in markets. Therefore health quality level of fish market is critical. Fish market regulations have been issued by more than one government agency that have comparable authority. Different mandates of those institutions created a lack of comprehensive regulation on how to develop and manage healthy fish market well. This situation could puzzle existing fish market managers or fish market developers. Author used direct qualitative comparison between existing regulations and descriptive analysis approach to formulate a comprehensive health standard for fish market development. The result is a synchronized comprehensive health standard consist of five aspects with 59 criteria. Some parts of the comprehensive standard (four aspects and 17 criteria) was then used as try-out to assess the health adequacy level of the Muara Angke fish market. Simple check list with percentage calculation was implemented to determine the level of health adequacy of the market. The results showed that on average the level of health adequacy reached only 39.7%. It means that Muara Angke fish market is an unhealthy fish market and needs a lot of improvement to become a healthy and hygiene fish market.
Mathematical Communication Capability becomes an important part of the purpose of learning mathematics in the current era, but in reality, mathematical communication is still underestimated so that the process of learning mathematics has not fully paid attention to mathematical communication competence. This study aims to examine the validity of the development of learning tools with the SAVI approach in improving mathematical communication skills. This type of research is the development of learning tools using learning development models using learning development models ADDIE models consisting of 5 stages. Learning Tools developed include (a) Syllabus, (b) RPP, (c) Modules, (d) Macromedia Flash 8 and (e) Mathematical communication skills test. Two class research subjects in which one class uses expository learning and one class using the SAVI approach. Analysis and discussion results show that the use of the SAVI approach can improve mathematical communication skills. This study was declared valid, based on the results of the validation of experts, for the syllabus (3.63), RPP (3.63), Modules (3.48), Macromedia Flash 8 (3.70) and tests of mathematical communication skills (3.67 ) is categorized as meeting the good criteria.
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