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EFEKTIVITAS BAHAN AJAR BERBASIS KOOPERATIF JIGSAW UNTUK MENINGKATKAN KEMAMPUAN PEMECAHAN MASALAH SISWA SMA NEGERI 7 MEDAN
Get PDFAbstrak Penelitian ini bertujuan untuk mengetahui efektivitas proses pembelajaran dengan menggunakan bahan ajar berbasis model pembelajaran kooperatif tipe jigsaw, meliputi: (1) kadar aktivitas aktif siswa selama proses pembelajaran, (2) tingkat kemampuan guru dalam mengelola pembelajaran, (3) respon siswa terhadap komponen dan proses pembelajaran, (4) pencapaian tujuan belajar siswa dilihat dari kemampuan pemecahan masalah baik secara individu maupun klasikal. Subjek dalam penelitian ini adalah siswa kelas XI-IPA6 SMAN 7 Medan sebanyak 40 orang dan objek penelitian ini adalah untuk melihat efektivitas proses pembelajaran yang dilakukan. Instrumen yang digunakan terdiri dari lembar observasi aktivitas siswa, lembar observasi kemampuan guru, angket respons siswa serta tes kemampuan pemecahan masalah. Perangkat pembelajaran yang digunakan sudah memenuhi tingkat kevalidan, demikian pula untuk tes kemampuan pemecahan masalah dengan koefisien realibilitas untuk pretes sebesar 0,867 dan postes sebesar 0,911. Berdasarkan data yang diperoleh diketahui bahwa penggunaan bahan ajar berbasis kooperatif jigsaw telah dapat memenuhi efektivitas proses pembelajaran, dimana: (1) kadar aktivitas siswa telah memenuhi batas toleransi waktu ideal dengan pemanfaatan LAS yang baik dalam pembelajaran, (2) nilai kemampuan guru (NKG) pada ujicoba sebesar 3,20, termasuk kategori cukup baik. (3) respons siswa terhadap bahan ajar dan proses pembelajaran sudah positif, (4) persentase ketuntasan belajar pada saat postes telah mencapai batas ketuntasan minimal, yaitu 77,5% siswa mendapat nilai lebih dari 2,66 (B-). Kata KunciBahan Ajar, model kooperatif, jigsaw, dan kemampuan pemecahan masalah
KONTRIBUSI KEMAMPUAN BERPIKIR KOMBINATORIK DALAM PEMBELAJARAN STATISTIKA MATEMATIKA
Get PDFCombinatoric ability allows the process of connecting several patterns and principles in formula discovery activities through generalizations to help students see the application of mathematics in real life. The model given can help in making broad rough estimates in developing their insights. The purpose of this study was to find out how combinatoric thinking skills are and whether combinatoric thinking skills contribute to mathematical statistics courses. This research belongs to the field of social sciences and can use this type of qualitative descriptive approach. The data were collected using a descriptive test which consisted of four items related to combinatoric problems. The data from the research results were processed using the SPSS program to get the contribution value of combinatoric thinking skills during the mid-test and final-test. with 23 students. The results of the analysis showed that the students\u27 combinatoric thinking skills were quite good, where the mean and standard deviation were 71.27 and 6.09 during the middle exam and 72.00 and 5.88 at the time of the final exam. The problem that students have in combinatoric skills is the problem of mathematical modelling. The test results show that combinatoric thinking skills have a significant contribution to the mathematics-statistics course
IMPROVE STUDENTS' MATHEMATICAL CRITICAL THINKING SKILLS SUMATERA UTARA ISLAM: USING MODELS FOR PROBLEM-BASED LEARNING
No full textThis study's objective was to determine the effects of the problem-based learning model on students enrolled in the mathematics education program at the Islamic University of North Sumatra while they studied to improve their critical thinking skills. This type of quasi-experimental study aims to determine how the participant's parameters are affected by the treatment. "One-group pretest-posttest design" is the name of the study's approach. The research was carried out there with the participation of 35 students from the Mathematics Study Program at the Islamic University of North Sumatra. In this study, data were collected through tests and observations. A tool for data analysis is the t-test. A computer application named SPSS version 25.0 is used to process statistical data. According to the results, using the PBL learning model has an impact on students' mathematical critical thinking skills at the Islamic University of North Sumatra's Mathematics Education Study Program. The t-test significance value of 0.0001, which is less than 0.05, supports this
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe 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
Get PDF“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
Get PDFWe 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
Peran Orang Tua dalam Proses Pembelajaran Daring
Get PDFThe learning process is a social interaction that is carried out by students and teaching staff in sharing information and knowledge. During the process, learning activities are more likely to be carried out online, either using social media, teleconferencing devices, or other applications that can be used to convey messages/information, record material, or face-to-face virtual. For this reason, the learning process does not only need to be supervised by teaching staff, but also the role of parents in the online learning process. This research is a qualitative research with a descriptive approach that will provide an overview of the role of parents in the online learning process. The role of parents who become aspects of observation include: the facilities provided and the motivation provided. The sample in this study were all students of the Faculty of Teacher Training and Education, Islamic University of North Sumatra. The existing sample was chosen randomly with a total sample of 32 students. Analysis of the data used is using interpretation analysis based on the opinions and perceptions of students in terms of parental support for the online learning process. Based on the information collected from students regarding the role of parents, it is concluded that providing facilities to support the online learning process and providing motivation is a form of parental participation in the success of online learning
PENGEMBANGAN MODUL LOGIKA MATEMATIKA BERBASIS HIGHER ORDER THINGKING SKILLS UNTUK MENINGKATKAN KEMANDIRIAN BELAJAR SISWA
Get PDFThis study aims to develop teaching materials in the form of mathematics modules based on Higher Order Thinking Skills to increase student learning independence at SMK YPK Medan. The mathematical logic module developed is feasible to use and has met the valid, practical and effective criteria. The method used in this study is a Research and Development method with define, design, develop, disseminate. The results of the research that have been carried out show that the module developed is valid. This is based on the results of four different validators in terms of material, language, and design with an average score of 4.0 and are in the valid category. Practicality is obtained from the results of student questionnaires with an average score of 58.47 and is in the practical category. The effectiveness is obtained from the results of increasing student learning independence on the first trial test of 68.3 and on the second trial test of 81.65 which is included in the effective improvement category
ANALISA LOKASI DAN PELAYANAN TERHADAP TIMBULNYA WORD OF MOUTH (WOM)
Get PDFPenelitian ini bertujuan untuk mengetahui analisa lokasi dan pelayanan terhadap timbulnya word of mouth (wom) pada Klinik Nirwana Medical Centre palabuhan ratu kabupaten sukabumi.Jumlah sampel yang digunakan pada penelitian ini adalah 91 responden. Pengambilan sampel menggunakan nonprobability sampling.Teknik pengumpulan data dengan kuesioner.Analisis data menggunakan teknik analisis regresi berganda. Hasil penelitian menunjukkan bahwa lokasi berpengaruh parsial dan signifikan terhadap timbulnya word of mouth (sig.0,006 ), kontribusinya sebesar 31,3 %, pelayanan berpengaruh parsial dan signifikan terhadap timbulnya word of mouth (sig.0,003), kontribusinya sebesar 33,3 %, lokasi dan pelayanan berpengaruh simultan (bersama-sama) secara signifikan terhadap timbulnya word of mouth (sig.0,000), kontribusinya sebesar 33,9 %
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