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ANALISIS KESULITAN BELAJAR MATEMATIKA MATERI BANGUN RUANG PADA SISWA KELAS 5 SDN 2 TEGALREJO
No full textABSTRAK
ADI NUGROHO, NIM 2499010096. Analisis Kesulitan Belajar Matematika Materi Bangun Ruang pada Siswa Kelas 5 SDN 2 Tegalrejo. Jurnal. Pembimbing 1: Prof. Dr. Woro Sumarni, M.Si. dan Pembimbing 2: Dr. Bambang Subali, M.Pd. Semarang: Program Studi Pendidikan Dasar S2, Fakultas Sekolah Pascasarjana, Universitas Negeri Semarang, 2024. Penelitian ini bertujuan untuk menganalisis kesulitan belajar matematika materi bangun ruang pada siswa kelas 5 di SDN 2 Tegalrejo. Metode yang digunakan dalam penelitian ini adalah metode penelitian kualitatif. Teknik Pengumpulan data melalui observasi, wawancara, dan dokumentasi. Subjek dalam penelitian ini yaitu siswa kelas 5. Hasil penelitian menunjukkan bahwa pada materi bangun ruang pada siswa kelas 5, siswa belum memiliki pengalaman yang konkret dalam memvisualisasikan bentuk-bentuk bangun ruang. Kesulitan ini diperparah dengan metode pembelajaran yang kurang tepat seperti menggunakan ceramah dan buku LKS. Kesalahan ini sering terjadi karena siswa tidak memahami rumus yang digunakan dan kurang teliti dalam melakukan perhitungan. Kurangnya latihan soal dan pemahaman konsep dasar matematika juga menjadi faktor penyebab kesulitan ini. Hal ini menyebabkan siswa tidak memahami manfaat mempelajari materi bangun ruang. Faktor internal yang mempengaruhi kesulitan belajar siswa dalam materi bangun ruang karena kurangnya minat dan motivasi belajar siswa. Sedangkan faktor eksternal yang memengaruhi kesulitan belajar siswa antara lain metode pembelajaran yang kurang tepat, kurangnya alat peraga dan media pembelajaran, serta peran orang tua yang kurang maksimal.
Kata Kunci : Kesulitan Belajar, Matematika, Bangun Ruan
Analisis Kemampuan Literasi Sains pada Siswa Sekolah Dasar Ditinjau dari Aspek Konten, Proses, dan Konteks Sains
Get PDFThe low level of scientific literacy is due to the lack of success of students in completing the types of scientific literacy with characteristics. This research aims to determine the literacy achievement of elementary school students in terms of content, process, and science context aspects. The sampling technique used is purposive sampling, where the sampling criteria are based on suggestions from the class teacher and the characteristics of the students themselves. The teacher suggested that the class that had received the material to be tested were class VI, which consisted of 31 students from 16 female students and 15 male students. The research instrument used was a scientific literacy test in the form of 10 multiple-choice questions on the human digestive system material which included aspects of the content, process, and context of scientific literacy. Data were analyzed by descriptive percentage formula. The results showed that the average scientific literacy ability as a whole obtained a percentage value of 51.09% in the low category. In the content aspect, it obtained a percentage value of 49.73% with the low achievement category. The process aspect obtained a percentage value of 44.43% in the low category. Meanwhile, the context aspect shows the highest gain among other aspects of scientific literacy ability, which is 59.13% in the medium category. Conclusion, students' literacy skills are still low, so teachers must pay more attention to improving students' scientific literacy skills through a contextual learning process by connecting science and the application of science in students' daily live
LESSON STUDY UNTUK MENINGKATKAN MUTU PROSES DAN HASIL PEMBELAJARAN PERKULIAHAN DASAR PEMISAHAN ANALITIK
Get PDFThe research of Lesson Study followed by the observation composed by analytical expertise lecturers was conducted. The aims of this activity are to raise the quality of lesson plan  produced  by  the  lecturers,  the  mastering  of  learning  material  for  each  of  lecturers conducting  the Principles  of Analytical Separation  course,  the  knowledge  of  observing the  learning  activity, and motivation  of  lecturer  for  self-developments. The responses of lecturers showed that they acquired a good comprehension, particularly on how the students learning and how lecturers teaching. The others are they got a positive value inside the learning process; they had the ability to improve the learning process systematically through collaborative inquiry and they got knowledge from the other lecturers. Thereby, the Lesson Study activity had to be experienced the benefi t by the analytical expertise lecturers. From the obtained results, it is suggested that the lesson study would be applied continually and collaboratively, so we could gain various benefi ts such as collegiality strengthening and the reinforcement of daily learning activity related to the long term purposes.Keywords: lesson study; process quality; learning result</p
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
PENERAPAN LEARNING CYCLE SEBAGAI UPAYA MENINGKATKAN KETERAMPILAN GENERIK SAINS INFERENSIA LOGIKA MAHASISWA MELALUI PERKULIAHAN PRAKTIKUM KIMIA DASAR
Get PDFPenelitian ini bertujuan untuk meningkatkan kemampuan berpikir generik inferensialogika mahasiswa calon guru kimia dalam pembelajaran Praktikum Kimia Dasar denganstrategi learning cycle. Penelitian ini dilaksanakan di Jurusan Kimia FMIPA UNNES. Subjekpenelitian ini adalah mahasiswa prodi Pendidikan Kimia tahun akademik 2008/2009. Sebagaifokus penelitian adalah prestasi belajar mahasiswa untuk mengungkapkan perbedaan tingkatpemahaman konsep dan keterampilan generik inferensia logika. Penelitian didesain sebagaipenelitian tindakan kelas yang dilaksanakan dalam tiga siklus dengan tahapan PIOR. Dalamsetiap siklus diterapkan strategi Learning Cycle 5E (engagement, exploration, explaination,extension, evaluation). Instrumen yang digunakan dalam pengambilan data berupa soalpretes dan postes dengan bentuk soal pilihan benar salah diikuti alasan atas jawaban,sedangkan instrumen nontes berupa lembar observasi dan angket tanggapan mahasiswaterhadap model pembelajaran. Hasil penelitian tindakan kelas ini menunjukkan bahwapengembangan model pembelajaran praktikum kimia dasar dengan strategi learning cyclemampu meningkatkan penguasaan konsep-konsep kimia dasar dan keterampilan generiksains inferensia logika bagi calon guru kimia. Hal ini berarti pembelajaran praktikum kimiadasar dengan strategi learning cycle telah memberikan dampak positif terhadap peningkatankualitas pembelajaran Praktikum Kimia Dasar dan keterampilan generik sains inferensi logikabagi mahasiswa calon guru kimia. Kata kunci: learning cycle, keterampilan generik sains, inferensia logika</p
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
Dispelling the Myths Behind First-author Citation Counts
Get PDFWe 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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