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SEGITIGA DAN SEGIEMPAT PADA GEOMETRI DATAR EUCLID CEVIAN SEGITIGA DAN SEGIEMPAT SIKLIK
Full text linkGeometri Euclidean adalah sistem matematika yang dikaitkan dengan Euclid, matematikawan dari Alexandria Yunani, yang dijelaskan dalam buku teksnya pada geometri: The Elemen. Perkembangan geometri yang membuat kajiannya lebih mendalam, mengakibatkan materi geometri sulit diajarkan seluruhnya pada tingkat sekolah menegah. Tulisan ini khusus membahas mengenai beberapa teorema terkait “cevian pada segitiga serta segiempat siklik” dan disajikan secara deduktif
Pengembangan Perangkat Pembelajaran Transformasi Geometri Berbasis Inkuri Berbantuan Media Geogebra Untuk Siswa Kelas XII IPA SMA
Full text linkABSTRAK
SAMSUMARLIN. 2014. Pengembangan Perangkat Pembelajaran Transformasi Geometri Berbasis Inkuri Berbantuan Media Geogebra Untuk Siswa Kelas XII IPA SMA (Dibimbing oleh Djadir dan Hisyam Ihsan).
Tujuan penelitian ini adalah mengembangkan perangkat pembelajaran pada pokok bahasan Transformasi Geometri, dengan pembelajaran Berbasis Inkuiri berbantuan media Geogebra. Perangkat pembelajaran yang akan dikembangkan yaitu Buku Guru (BG), Buku Siswa (BS), Lembar Kegiatan Siswa (LKS), dan Rencana Pelaksanaan Pembelajaran (RPP).
Penelitian ini termasuk penelitian pengembangan (developmental research). Produk yang dikehendaki dalam penelitian ini adalah perangkat pembelajaran Transformasi Geometri berbasis Inkuiri berbantukan media Geogebra yang memenuhi kriteria valid, praktis, dan efektif. Produk tersebut terdiri dari Empat komponen, yaitu: buku guru (BG), buku siswa (BS), lembar kegiatan siswa (LKS), dan rencana pelaksanaan pembelajaran (RPP). Dengan pertimbangan efisien waktu pengembangan keempat perangkat pembelajaran tersebut dilaksanakan uji coba dengan kata lain, pada saat mengembangkan perangkat pembelajaran dikembangkan pula instrumen yang terkait dengan perangkat pembelajaran tersebut. Proses pengembangan perangkat pembelajaran menggunakan model 4-D yang meliputi 4 tahap, yaitu: (a) tahap pendefinisian (define). Pada tahap ini dilakukan kajian tentang: (1) analisis awal akhir, (2) analisis siswa, (3) analisis konsep, dan (4) analisis tugas (5) Spesifikasi tujuan pembelajaran, (b) tahap perancangan (design). Pada tahap ini dirancang pembelajaran model kooperatif berbasis Inkuiri dengan menggunakan bantuan media Geogebra. Kegiatan yang dilakukan pada tahap ini, meliputi: (1) penyusunan tes, (2) pemilihan format, dan (3) perancangan awal perangkat pembelajaran (prototipe) (4) pemilihan media, (c) tahap pengembangan (develop). Kegiatan yang dilakukan pada tahap ini, meliputi: (1) penafsiran ahli, (2) mengadakan uji coba lapangan prototipe perangkat pembelajaran yang telah disusun, dan (d) tahap penyebaran (disseminate). Pada tahap ini dilakukan sosialisasi terbatas dan penyebaran perangkat pembelajaran untuk memperoleh saran-saran perbaikan dari guru-guru pada MGMP matematika.
Uji coba pada penelitian ini dilakukan satu kali. Uji coba dilakukan pada kelas XII IPA2 SMA Negeri 1 Pasui. Hasil pengembangan perangkat yang diperoleh yaitu (1)Rancangan Pelaksanaan pembelajaran dan Lembar Kegiatan Siswa berada dalam kategori Sangat Valid berdasarkan penilaian para ahli kecuali buku siswa hanya di kategori Valid, (2) Praktis, berdasarkan hasil pengamatan pengelolaan pembelajaran oleh observer menyatakan bahwa perangkat pembelajaran terlaksana dengan baik pada saat uji coba, dan (3) efektif karena telah memenuhi tiga kriteria keefektifan perangkat pembelajaran yang meliputi : ketuntasan klasikal telah tercapi, aktivitas siswa sudah sesuai yang diharapkan, siswa memberikan respon positif terhadap perangkat dan keterlaksanaan kegiatan pembelajaran
ABSTRACT
SAMSUMARLIN. 2013 Develoving Learning Package of Inqury-based Geometric Transformation with Geogebra Media Aids of Grade XII Science Student in SMAN 1 Pasui (Supervised by Djadir and Hisyam Ihsan).
The study aimed at developing the learning package on the subject of Geometric Transformation by employing inquiry-based with Geogebra media aids The learning package developed was teacher’s manual, student’s book student’s workbook, and lesson plan.
The study was developmental research. The intended produck of the study was the learning package of inquiry-based Geometric Transformation with Geogebra Media Aids which fulfiled the criteria of valid, practical, and effective. The product consisted of four components, namely teacher’s manual, student’s book, student’s workbook, and lesson plan. When developing the learning package, the instrument related the learning package was also developed considering time efficiency. The process of developing learning package employed 4-D model which consisted of four stage : (1) defening stage, which consisted of a) pre and post analysis, b) student anlysis, c) conceptnanalysis and d) taks analysis; (2) design stage, which design inqury-based cooperative model with Geogebra media aids. The activities covered a) test arrangement, b) format selection, and c) prototype design; (3) developing stage, which consisted of a) iterpretation by the expert, b) field tried out of prototyfe; and (4) dissemination stage, which conducted limited sicialization and dissemination of the learning package to obtain feedback from teacher at MGMP mathematics. The tried out was conducted once at grade XII IPA 2 in SMAN 1 Pasui.
The result of the study revealed that the lesson plan and student’s workbook were in extremely valid category based on the assessment of the experts except student’s book which was in valid category. The learning package was practical besed on the observation of learning management conducted by the observer who comfirmed that the learning package was well conducted at the try out. The learning package was effective because it fulfilled three criteria of effectiveness which covered the achievement of classical mastery, student’s activities achieved the expected standard, student’s gave positive response toward the learning package and the implementation of learning activities
STUDI ZONASI VEGETASI MANGROVE MUARA DI DESA UMBELE KECAMATAN BUMI RAYA KABUPATEN MOROWALI SULAWESI TENGAH
Full text linkThe size of mangrove forest located in Bumi Raya Sub District, Morowali, Central Sulawesi is estimated to be about 9.8 ha. Research aimed at observing the mangrove vegetation zonation along with environmental condition parameter was conducted and taking place in Umbele Village. Primary and secondary data were collected. Primary data covered aspects such as species and number of individuals along with various parameters including salinity, acidity, soil textures, dissolved sulphate, tides on every observation station. Secondary data were collected from literature studies both in university and public libraries. The results of the study shows that there are about 17 mangrove species within 10 families located as rear zone. Parameter found to influence the existence of the mangrove are muddy and sandy soil as well as debrised muddy soil with pH ranging from 36 to 7.8. Meanwhile, salinity was recorded to range from 1.1 to 2.90 with tidal fluctuation from (0-13) cm to (13-220) cm.
Key Words : Zonation, Vegetation, Mangrove
ETOS KERJA ORANG JAWA DALAM MENGELOLA USAHA WARUNG MAKAN DI KOTA KENDARI
No full textPenelitian ini bertujuan untuk mengetahui dan mendeskripsikan hal yang mendukung orang Jawa dalam mengelola usaha warung makan yang ada di Kota Kendari, antara lain: motivasi yang mendasari orang Jawa memilih usaha warung makan, aspek-aspek yang mempengaruhi etos kerja orang Jawa dalam mengelola warung makan, manifestasi etos kerja dalam pengelolaan usaha mereka, serta relasi nilai-nilai agama terhadap etos kerja dalam pengelolaan usaha warung makan dan strategi mempertahankan serta mengembangkan usaha warung makan yang di lakukan oleh orang Jawa dalam mengelola usaha warung makannya. Selanjutnya penelitian ini menggunakan teori etos kerja Max Weber (1958), dengan menggunakan metode Etnografi. Hasil penelitian menunjukkan bahwa penerapan etos kerja yang di gunakan orang Jawa ialah tepat waktu, jujur, orientasi pada prestasi, kreativitas kerja, berorientasi pada perubahan, rendah hati, sabar, tanggung jawab, kerja adalah seni dan keuletan. Ada duastrategi yang diterapkan orang Jawa dalam mengelola usaha warung makan yaitu 1) strategi mempertahankan usaha warung makan diantaranya dengan mempertahankan cita rasa menu makananan, pemilihan tempat usahadan desain interior warungmakan. 2) strategi mengembangkan warung makan yaitu menjaring pelanggan/konsumen, menu makanan dandesain interior warung makan
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Full text linkWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Dispelling the Myths Behind First-author Citation Counts
Full text linkWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
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