PENGGUNAAN MODEL PROBLEM BASED LEARNING UNTUK MENINGKATKAN HASIL BELAJAR SISWA (Penelitian Tindakan Kelas ini dilakukan Pada Kelas V Tema Lingkungan Sahabat Kita SubTema Perubahan Lingkungan SDN Sindang Jaya Kecamatan Bojong Picung Kabupaten Cianjur)

Pada umumnya, pelaksanaan pembelajaran di Sekolah Dasar menggunakan model pembelajaran yang tidak sesuai, metode yang sering digunakan biasanya menggunakan metode ceramah, tanya jawab, dan penugasan, sehingga menyebabkan siswa jenuh atau bosan dal am mengikuti pembelajaran dan tidak aktif saat proses pembelajaran. Oleh sebab itu, penulis melakukan penelitian tindakan kelas di SDN S indangjaya Kabupaten Cianjur . Penelitian ini bertujuan untuk meningkatkan hasil belajar siswa pada subtema perubahan ling kungan dengan menerapkan model pembelajaran Problem Based Learning. Penelitian ini menggunakan metode penelitian tindakan kelas (PTK), PTK ini berlangsung selama 3 siklus. Setiap siklus terdiri dari 4 tahap yakni perencanaan, pelaksanaan, observasi, dan re fleksi. Instrumen yang digunakan dalam penelitian ini adalah observasi, angket, tes, wawancara, dan dokumentasi. Model PBL dapat meningkatkan sikap kerjasama, keterampilan, pemahaman dan hasil belajar. Hal tersebut dapat terlihat dari: pertama adanya penin gkatan dalam menyusun rencana pelaksanaan pembelajaran yaitu pada siklus I mencapai 68% siklus II 7 0 % dan siklus III 83 %. Kedua, peningkatan pelaksanaan pembelajaran yaitu pada siklus I mencapai 69 % siklus II 7 0 % dan siklus III 8 0 %. Ketiga, peningkatan si kap kerjasama yaitu pada siklus I mencapai 47% siklus II 6 8 % dan siklus III 82%. Kee mp a t , peningkatan kognitif atau pemahaman siswa yaitu pada siklus I mencapai 18 % siklus II 32 % dan siklus III 93 %. Ke lima , peningkatan keterampilan yaitu pada siklus I mencapai 4 6 % siklus II 68% dan siklus III 93 %. Ke nam , peningkatan hasil belajar siswa. Berdasarkan data yang diperoleh, dapat disimpulkan bahwa pembelajaran dengan menggunakan model Problem Based Learning dapat meningkatkan hasil belajar siswa. Kata kunci : Problem Based Learning, Hasil Belaja

THE CHIARI PELVIC OSTEOTOMY A LONG-TERM REVIEW OF CLINICAL AND RADIOGRAPHIC RESULTS

We have reviewed a series of 94 Chiari pelvic osteotomies carried out from 1966 to 1982. In 83 hips the indication for surgery had been pain, and of these patients 73 (88%) had appreciable relief within one year of operation. The other 11 hips were all in children and were painless; in them the osteotomy had successfully stabilised progressive subluxation of the hip. At review after a mean follow-up of 10 years (range, 2 to 18 years) 68 previously painful hips were reassessed. Although function of the hips had deteriorated slowly with time, four of the seven cases with 18 years' follow-up had good function and only minor symptoms

Large-area inventory of species composition using airborne laser scanning and hyperspectral data

5openInternationalInternational coauthor/editorTree species composition is an essential attribute in stand-level forest management inventories and remotely sensed data might be useful for its estimation. Previous studies on this topic have had several operational drawbacks, e.g., performance studied at a small scale and at a single tree-level with large fieldwork costs. The current study presents the results from a large-area inventory providing species composition following an operational area-based approach. The study utilizes a combination of airborne laser scanning and hyperspectral data and 97 field sample plots of 250 m2 collected over 350 km2 of productive forest in Norway. The results show that, with the availability of hyperspectral data, species-specific volume proportions can be provided in operational forest management inventories with acceptable results in 90% of the cases at the plot level. Dominant species were classified with an overall accuracy of 91% and a kappa-value of 0.73. Species-specific volumes were estimated with relative root mean square differences of 34%, 87%, and 102% for Norway spruce (Picea abies (L.) Karst.), Scots pine (Pinus sylvestris L.), and deciduous species, respectively. A novel tree-based approach for selecting pixels improved the results compared to a traditional approach based on the normalized difference vegetation index.openØrka, Hans Ole; Hansen, Endre Hofstad; Dalponte, Michele; Gobakken, Terje; Næsset, ErikØrka, H.O.; Hansen, E.H.; Dalponte, M.; Gobakken, T.; Næsset, E

Robert Harrison and others.

35-2ClaimsReport : Petition of R. Harrison et al. [1018] Gen. Jackson's incursions into Florida in 1814 and 1818; violations of Spain's neutrality; pursuit of Indians.1859-5

Indian school land in Arizona. Letter from the Secretary of the Interior, transmitting a copy of a communication from the Commissioner of Indian Affairs and accompanying draft of a bill setting apart a certain tract of land in the Territory of Arizona for Indian school purposes

51-2Indian AffairsIndian School Land in Arizona. [2866] Bill setting apart land near Phoenix for said purpose.1891-5