1,721,006 research outputs found
Pengaruh Model Pembelajaran Kooperatif Tipe Student Team Achievement Division (STAD) Dengan Alat Peraga Terhadap Hasil Belajar Matematika Siswa Materi Bangun Datar Di Kelas VII MTsN Watulimo Trenggalek Tahun Ajaran 2016/2017
Full text linkABSTRAK
Skripsi dengan judul “Pengaruh Model Pembelajaran Kooperatif Tipe Student Team Achievement Division (STAD) Dengan Alat Peraga Terhadap Hasil Belajar Matematika Siswa Materi Bangun Datar Di Kelas VII MTsN Watulimo Trenggalek Tahun Ajaran 2016/2017” ini ditulis oleh Muhammad Imaduddin Abdurrahim, NIM. 2814133126, Pembimbing Bapak Dr. Maryono, M.Pd.
Kata Kunci: Model Pembelajaran Kooperatif Tipe Student Team Achievement Division (STAD), Alat Peraga, Hasil Belajar.
Penelitian ini membahas tentang pengaruh model pembelajaran kooperatif tipe Student Team Achievement Division (STAD) dengan alat peraga terhadap hasil belajar matematika siswa. Kajian penelitian ini dilatarbelakangi oleh: 1) rendahnya hasil belajar matematika siswa 2) kurangnya partisipasi siswa dalam proses pembelajaran matematika. Tujuan penelitian ini adalah: 1) untuk mengetahui hasil belajar matematika siswa materi bangun datar di kelas VII MTsN Watulimo Trenggalek tahun ajaran 2016/2017 dengan model pembelajaran kooperatif tipe Student Team Achievement Division (STAD) dengan alat peraga, 2) untuk mengetahui pengaruh model pembelajaran kooperatif tipe Student Team Achievement Division (STAD) dengan alat peraga terhadap hasil belajar matematika siswa materi bangun datar di kelas VII MTsN Watulimo Trenggalek tahun ajaran 2016/2017, 3) Untuk mengetahui besar pengaruh model pembelajaran kooperatif tipe Student Teams Achievement Division dengan alat peraga terhadap hasil belajar matematika siswa materi bangun datar di kelas VII MTsN Watulimo Trenggalek tahun ajaran 2016/2017.
Penelitian ini menggunakan pendekatan kuantitatif, jenis penelitiannya adalah penelitian eksperimen semu. Populasi dalam penelitian ini adalah seluruh siswa kelas VII MTsN Watulimo Trenggalek yang berjumlah 228 siswa. Dalam pengambilan sampel digunakan teknik Simple Random Sampling. Teknik dan Instrumen pengumpulan data: 1) observasi, 2) dokumentasi, 3) tes. Instrumen penelitian berupa tes untuk mengukur hasil belajar. Instrumen soal sebelum digunakan untuk menjaring data dan untuk mendapatkan data yang objektif, terlebih dahulu dilakukan pengujian validitas dan reliabilitas. Setelah data penelitian terkumpul kemudian dianalisis, yang digunakan adalah uji t-test.
Hasil penelitian menunjukkan bahwa 1) Ada perbedaan hasil belajar matematika siswa materi bangun datar di kelas VII MTsN Watulimo Trenggalek tahun ajaran 2016/2017 dengan model pembelajaran kooperatif tipe Student Team Achievement Division (STAD) dengan alat peraga. Hal ini dibuktikan dengan nilai rata-rata kelas eksperimen sebesar 91,531 dan nilai rata-rata kelas kontrol sebesar 70,125, sehingga H1 diterima. 2) Terdapat pengaruh model pembelajaran kooperatif tipe Student Team Achievement Division (STAD) dengan alat peraga terhadap hasi belajar matematika siswa materi bangun datar di kelas VII MTsN Watulimo Trenggalek tahun ajaran 2016/2017. 3) Besar pengaruh model pembelajaran kooperatif tipe Student Team Achievement Division (STAD) dengan alat peraga terhadap hasi belajar matematika siswa materi bangun datar di kelas VII MTsN Watulimo Trenggalek tahun ajaran 2016/2017 sebesar 1,8 dengan interpretasi nilai Cohen’s adalah 96,4% dan tergolong tinggi
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
Acid Removal From Saline Media
Full text linkNaphthenic acid (NA) is also known as organic acid within the crude. The
presence of NA is a major concern in oil and gas industry due to its ability to cause
corrosion. The corrosion cause by NA can damage the production and refinery
equipment as well as transportation and storage facilities in oil and gas industry. The
concentration of acid in the crude can be determined by the value of Total Acid Number
(TAN).
In this project, the author used crude oil provided by PETRONAS for
experiments. The author will study on the rate of acid extraction using Ionic Liquid (IL).
Ionic liquids refer to salt exist in a liquid state over a wide range of temperature. In this
project, the author used two different based IL to extract acid in the crude oil sample.
Other than that, the author used different sea water volume to study its effect. The
project started by doing some research on journal and research paper which related to
the topic investigated. In order to obtain result and confirmation regarding the
hypothesis or theory made a lot if lab work and experiment are done. There are (3) three
main processes involve in this project; Reaction, Extraction and Settling (R: E: S)
process. The experiments are done under various parameters to study the effect of
varying the parameters on extraction efficiency. Under these parameters set-up and
chemicals used, the author will study the rate of acid removal from saline media.
The results of this project show that ionic liquid can be used to extract organic
acid from the crude oil. The extraction efficiency is ranging from 50% - 80%. Other than
that, increase in salinity’s concentration show decrease in TAN of crude oil. The acid
extraction is proven to be more efficient under specific parameters; solvent as the
solvent, time taken for R: E: S process is 30:60:60 and 800 rpm. Based on the gas
chromatography result, the amount of hexanoic acid extracted is more than dodecanoic
acid
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
koamabayili/VECTRON-author-checklist: VECTRON author checklist
No full textWe have done our best to complete the author checklist relating to the use of animals in the hut study. Note that the objective for the hut study was to evaluate the IRS treatment applications for residual efficacy against Anopheles mosquitoes, including the local An. coluzzii mosquito population. Cows were only used to attract mosquitoes into the huts and no tests were carried out directly on the cows. The author checklist is intended for use with studies where experiments are carried out on animals, which is why we have had such difficulty in completing this for the hut study, as many of the questions do not relate to how the cows were used
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
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