Penelitian ini bertujuan untuk mengetahui bagaimana pemahaman konsep siswa dalam memecahkan masalah matematika yang ditinjau dari minat belajar siswa. Penelitian ini dilaksanakan di SMP Negeri 1 Boyolangu pada siswa kelas VII-A dengan subjek sebanyak 40 siswa. Instrumen yang digunakan adalah tes angket minat belajar dan tes masalah himpunan. Teknik pengumpulan data meliputi tes angket minat belajar, tes masalah himpunan dan wawancara. Hasil yang diperoleh dari penelitian yaitu pemahaman konsep subjek yang memiliki minat belajar tinggi dalam memecahkan masalah dapat menyatakan ulang konsep dengan jelas dan benar, mampu mengklasifikasikan objek menurut sifatnya, mampu menerapkan konsep operasi himpunan dengan benar, menyajikan konsep himpunan dalam bentuk representasi matematika yang tepat, dapat mengaitkan konsep yang digunakan sehingga dapat memecahkan masalah dengan benar.
: Mangrove is a vegetation that has many benefits. One of them, mangrove provide living space to many organism. Crabs are one of a wide variety of invertebrate animals that live in association with mangroves. The importance of the role of crabs in the mangrove ecosystem because the crab is a burrowing organism, so it will support the mangrove land becomes fertile. This study aims to determine the diversity of crabs, dominant or most commonly found crab species and crab living habitats associated with mangrove trees around Kuala Langsa mangrove forest, Langsa City, Aceh. This research is only descriptive. Sampling is done by 2 methods that is qualitative in quadrant plot 5x5 meter2 and quantitative in quadrant plot 1x1 meter2. From the results of the study found 15 species of crabs from 7 genera and 5 families. The index value of diversity for all research stations was included in the medium category. The uniformity index is high and there is no type dominance on all stations. Of the 15 types of crabs, there are 3 types of economical crabs (Scylla serrata, Scylla olivacea and Thalamita crenata) and 12 types of non-economical crabs. In general, the crabs of the Genus Uca are the most commonly found crabs in the study sites. Keywords: Aceh, Biodiversity, Crabs, Kuala Langsa, Mangrove Abstrak : Mangrove merupakan suatu vegetasi yang memiliki banyak manfaat. Salah satu dari manfaat mangrove adalah menyediakan ruang hidup bagi banyak organisme. Kepiting merupakan salah satu dari berbagai jenis hewan avertebrata yang hidup berasosiasi dengan mangrove. Pentingnya peran kepiting pada ekosistem mangrove karena kepiting merupakan hewan yang hidup meliang, sehingga akan membuat tanah pada ekosistem mangrove menjadi subur. Penelitian ini bertujuan untuk mengetahui keanekaragaman jenis kepiting, jenis kepiting yang mendominasi atau paling sering ditemukan dan habitat hidup kepiting yang berasosiasi dengan pohon mangrove di sekitar hutan mangrove Kuala Langsa, Kota Langsa, Aceh.Penelitian ini bersifat deskriptif. Pengambilan sampel dilakukan dengan 2 metode yaitu kualitatif pada kuadran plot 5x5 meter2 dan kuantitatif pada kuadran plot 1x1 meter2. Dari hasil penelitian ditemukan 15 jenis kepiting dari 7 genus dan 5 famili.Nilai indeks keanekaragaman untuk semua stasiun penelitian termasuk dalam kategori sedang.Indeks keseragaman tinggi dan tidak ada dominansi jenis pada seluruh stasiun.Dari 15 jenis kepiting, terdapat 3 jenis kepiting ekonomis (Scylla serrata, Scylla olivacea dan Thalamita crenata) dan 12 jenis kepiting non-ekonomis.Secara umum, kepiting dari genus Uca merupakan kepiting yang paling banyak ditemukan di lokasi penelitian. Kata kunci: Aceh, Keanekaragaman, Kepiting, Kuala Langsa, Mangrove
This study aims to empirical related understanding to update the data they think of students with special needs in primary schools inclusive kepulauan seribu. Sample of the research is teachers SDN 01 panggang island, teachers of SDN 02 panggang island and teachers sdn 03 panggang island Kepulauan Seribu some 50 people. This approach in this study used a quantitative approach with the descriptive. Data collection in this research using survey by the questionnaire as an instrument used to collect data from respondents.Study was conducted in SDN inclusive in Kepulauan Seribu. The research results show that they think of understanding students with special needs in sdn inclusive kepulauan seribu has not been spread evenly .This can be seen from the acquisition a score respondents a whole that a lot of teachers who are already proficient in ideal and have a score above the limit those teachers ( 72 % ) . But there is some of the teachers did not understand school tuition berkebutuhan special and have a score under the ideal the 14 teachers ( 28 % ).Based on the results of that research shows that understanding teachers for participants students special berkebutuhan in primary schools inclusive kepulauan seribu has not been spread evenly, so this might impact on the implementation of the teaching and learning done that school tuition berkebutuhan special not fully served well Abstrak Penelitian ini bertujuan untuk memperoleh data empirik terkait pemahaman guru terhadap peserta didik berkebutuhan khusus di SD Inklusif wilayah Kepulauan Seribu. Sampel dalam penelitian ini adalah guru SDN 01 Pulau Panggang, guru SDN 02 Pulau Panggang dan guru SDN 03 Pulau Panggang Kepulauan Seribu sebanyak 50 orang. Pendekatan dalam penelitian ini menggunakan pendekatan kuantitatif dengan metode deskriptif. Pengumpulan data dalam penelitian ini menggunakan survei dengan kuesioner sebagai alat yang digunakan untuk mengumpulkan data dari responden. Penelitian ini dilaksanakan di SDN Inklusif di Kepulauan Seribu. Hasil penelitian menunjukkan bahwa pemahaman guru terhadap peserta didik berkebutuhan khusus di SDN Inklusif wilayah Kepulauan Seribu belum merata. Hal ini dapat dilihat dari pemerolehan skor responden keseluruhan bahwa banyak guru yang sudah memahami dan memiliki skor diatas batas ideal yaitu sebanyak 36 orang guru (72%). Namun ada beberapa guru yang belum memahami peserta didik berkebutuhan khusus dan memiliki skor dibawah batas ideal sebanyak 14 orang guru (28%). Berdasarkan hasil penelitian yang menunjukkan bahwa pemahaman guru terhadap peserta didik berkebutuhan khusus di SD Inklusif wilayah Kepulauan Seribu belum merata, maka hal ini berdampak pada pelaksanaan belajar mengajar yang dilakukan bahwa peserta didik berkebutuhan khusus belum sepenuhnya terlayani dengan baik.
This research was conducted as a preliminary study on utilization of RBO for Nile tilapia (Oreochromis sp.) diet by also evaluating its effect on growth the performance. This research used SULTANA strain at average initial body weights of 8.33±0.07 g/ind. Experimental design was set in completely randomized design. Each treatment was done in triplicates. The treatments were various additions of RBO to replace corn oil in the diet, which were 0%, 25%, 50%, 75%, and 100%. Feeding rate, feed efficiency, protein retention, fat retention, specific growth rate, glucose, cholesterol, triglycerides, HDL (high-density lipoprotein), and hematology were used as evaluating parameters. The results showed that the growth performance, blood chemistry and hematology of fish decreased as the increasing of RBO level in the diet. These are caused by feed intake decreased significantly, which were 583.5 g to 145.6 g of treatments 0% to 100% RBO. Blood glucose, haemoglobin and specific growth of fish in the treatment of 0-100% RBO were 48.7-22.2 mg/dL, 7.6-5.4%, and 3.5-0.8%, respectively. The lowest survival was observed in fish fed 100% RBO (66.7%). Fish growth performance of 0% RBO was the best, so RBO could not be utilized yet as a source of fatty acid or corn oil replacement in tilapia diet.
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