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KETUT SARJANA, KETUT
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Agriculture, Biological Sciences & Forestry Chemistry Economics, Econometrics & Finance Education Languange, Linguistic, Communication & Media Mathematics Physics Social Sciences Other

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Pengaruh Penggunaan Media Audiovisual Terhadap Hasil Belajar Matematika Siswa Pada Suplemen Pembelajaran Melalui Daring Sazali, Nur Safira; Arjudin, Arjudin; Kurniawan, Eka; Sarjana, Ketut
Mandalika Mathematics and Educations Journal Vol 6 No 1 (2024): Edisi Juni
Publisher : FKIP Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jm.v6i1.6936

Abstract

This study aims to determine the effect of the use of audiovisual media on students’ mathematics learning outcomes in the online learning supplement. This type of research is experimental research. The population in this study were class VIII students, with a sample determined using random sampling techniques. The samples in this research consists of 76 students, with class VIII-A as the experimental group and class VIII-B as the control group. The instrument used is a test of student learning outcomes. The data analysis used is the normality test and homogeneity test as a prerequisite test, the t test as a hypothesis test, and an effect size to determine whether there is an influence from the use of audiovisual media on student learning outcomes. According to the results of hypothesis testing using the t test at a 5% significance level, it was found that  and , indicating that  so the  is rejected  and the  is accepted. The effect size results showed a value of 0,804 which falls into the high category, meaning that there is an impact of using audiovisual media on students’ mathematics learning outcomes in the online learning supplement.
Analisis Kesalahan Newman dalam Menyelesaikan Soal Cerita Materi Statistika Ditinjau dari Adversity Quotient Kurnia, Puspita Dwi; Subarinah, Sri; Kertiyani, Ni Made Intan; Sarjana, Ketut
Mandalika Mathematics and Educations Journal Vol 6 No 2 (2024): Edisi Desember
Publisher : FKIP Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jm.v6i2.8204

Abstract

This research aims to describe the errors made by students based on their Adversity Quotient (AQ) while solving story problems in statistics. This study is qualitative in nature with a descriptive approach. The subjects of this research are 25 students from class VIII A at SMP Negeri 1 Kediri. The instruments used include an AQ questionnaire, a written test on statistics, and an interview guideline. Based on the research findings, students categorized as AQ quitters and campers mostly made similar errors, including transformation errors, process skill errors, and encoding errors, however, quitters exhibited a higher error rate. Meanwhile, students with AQ climber types primarily made encoding errors. Transformation errors occurred because students did not understand the problems, were unsure how to convert the information from the questions into mathematical forms, and lacked knowledge of the formulas needed to solve the problems. Process skill errors were attributed to students' lack of understanding of the problems, insufficient grasp of the material concepts, and unawareness of the steps required to solve the questions. Encoding errors were caused by mistakes made in previous stages, students' lack of attention to detail, and rushing to write the final answers on the answer sheets.  
Dimensi Metrik Graf Kincir K1+nK3 Amrullah, Amrullah; Soeprianto, Harry; Sarjana, Ketut; Hayati, Laila
Mandalika Mathematics and Educations Journal Vol 6 No 2 (2024): Edisi Desember
Publisher : FKIP Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jm.v6i2.8269

Abstract

The metric dimension is a fundamental concept in graph theory that utilizes the vector representation of distances between vertices and a subset of vertices in a graph. This concept has broad applications in various fields, such as navigation, network localization, and network design. Let G(V,E) be a connected graph with order n . A subset L={v1,v2,v3} subset of V(G) is called a resolving set, and the representation of a vertex v with respect to L is a vector (d(v,v1), d(v,v2)..d(v,vk)) , where d(v,vi) is the distance between v and vi . The metric dimension of G, denoted as dim(G), is the smallest cardinality of L such that every vertex in G has a unique representation. The windmill graph K1+nK3 is a graph obtained by connecting a vertex x in the complete graph K1 to every vertex in n copies of the complete graph K3. This paper employs a structural analysis method focused on the single vertex in K1 and determines the vector representations of all vertices in the windmill graph by analyzing inter-vertex distances. The final result shows that the metric dimension, dim (K1+nK3)= 2n, where n is an integer grether than 2 .
Hubungan Motivasi Belajar dan Kemampuan Pemecahan Masalah Matematika Siswa Ditinjau dari Gaya Belajar Siswa Pradita, Ade Lina Eka; Baidowi; Tyaningsih, Ratna Yulis; Sarjana, Ketut
Journal of Classroom Action Research Vol. 7 No. 1 (2025): Februari 2025
Publisher : Program Studi Magister Pendidikan IPA, Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jcar.v7i1.10400

Abstract

Penelitian ini bertujuan untuk mengetahui hubungan motivasi belajar dan kemampuan pemecahan masalah ditinjau dari gaya belajar siswa. Jenis penelitian yang digunakan adalah Korelasi. Populasi penelitian ini adalah siswa kelas VIII SMPN 2 Mataram sebanyak 10 kelas mulai dari kelas VIII A sampai kelas VIII J. Sampel penelitian ini yaitu 40 siswa kelas VIII J SMPN 2 Mataram.Teknik pengumpulan data yaitu menggunakan angket motivasi belajar, angket gaya belajar dan soal kemampuan pemecahan masalah. Hasil uji hipotesis menunjukkan terdapat hubungan antara motivasi belajar dan kemampuan pemecahan masalah siswa ditinjau dari gaya belajar siswa SMPN 2 Mataram berdasarkan proporsi motivasi belajar nilai korelasinya adalah 0,069 artinya sangat lemah, motivasi belajar dan kemampuan pemecahan masalah ditinjau dari gaya belajar visual memiliki nilai korelasi 0,0827 artinya sangat lemah. Motivasi belajar dan kemampuan pemecahan masalah ditinjau dari gaya belajar auditorial memiliki nilai korelasi 0,473 artinya cukup. Motivasi belajar dan kemampuan pemecahan masalah ditinjau dari gaya belajar kinestetik nilainya -0,1046 artinya sangat lemah. motivasi belajar dan kemampuan pemecahan masalah berdasarkan proporsi kemampuan pemecahan masalah nilainya adalah 0,0162 artinya sangat lemah, kemudian motivasi belajar dan kemampuan pemecahan masalah ditinjau dari gaya belajar visual nilainya 0,0852 artinya sangat lemah. Motivasi belajar dan kemampuan pemecahan masalah ditinjau dari gaya belajar auditorial nilainya 0,1985 artinya sangat lemah. Motivasi belajar dan kemampuan pemecahan masalah ditinjau dari gaya belajar kinestetik nilainya -0,0742 artinya sangat lemah.
Pengaruh Penggunaan Media Powerpoint Intetaktif dalam Pembelajaran Matematika terhadap Prestasi Belajar Siswa Kelas VIII SMPN 1 Gunungsari Tahun Ajaran 2024/2025 Lestari, Ayu; Sripatmi; Kurniawan, Eka; Sarjana, Ketut
Mandalika Mathematics and Educations Journal Vol 7 No 1 (2025): Edisi Maret
Publisher : FKIP Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jm.v7i1.8708

Abstract

This study aims to determine the effect of using interactive powerpoint media in mathematics learning on the academic achievement of eighth-grade students at SMPN 1 Gunungsari in the 2024/2025 academic year. This research is a quantitative study using a quasi-experimental method. The population in this study consists of eighth-grade students at SMPN 1 Gunungsari in the 2024/2025 academic year, totaling 295 students, comprising 140 male students and 156 female students, distributed across ten classes (VIII A to VIII J). The sample in this study includes class VIII G, consisting of 29 students as the control class, and class VIII J, consisting of 27 students as the experimental class, selected using cluster random sampling. Data collection techniques used in this study include observation, tests, and documentation. The data analysis techniques employed are descriptive and inferential statistics, including normality tests, homogeneity tests, t-tests, and effect size tests. Based on the t-test analysis, it was found that t_count > t_table (2.913 > 2.005) at a 5% significance level. This indicates a significant difference in academic achievement between the experimental and control groups, with the experimental group having a higher average score of 75,66 compared to the control group’s average score of 65,56. The effect size test yielded a value of d=0.78 indicating that the effect of using interactive powerpoint media falls into the medium category. Therefore, it can be concluded that the use of interactive PowerPoint media influences the mathematics learning achievement of eighth-grade students at SMPN 1 Gunungsari in the 2024/2025 academic year.
ANALISIS KESIAPAN GURU PEMULA DALAM MENGAJARKAN KETERAMPILAN BERPIKIR KRITIS DAN KREATIF Sarjana, Ketut; Lu'luilmaknun, Ulfa; Intan Kertiyani, Ni Made; Kurniawan, Eka
Mandalika Mathematics and Educations Journal Vol 7 No 2 (2025): Edisi Juni
Publisher : FKIP Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jm.v7i2.9317

Abstract

This study aims to analyze the readiness of novice mathematics teachers in Mataram City to teach critical and creative thinking skills to junior high school students. A descriptive method was employed with a purposive sample of 23 novice teachers. The research instrument consisted of tests measuring teachers' understanding of critical and creative thinking concepts and their ability to formulate questions that foster these skills. The results indicate that most novice teachers have good readiness, with an average score of 77.23. However, readiness varies by teaching experience, where teachers with 0–1 year and over 5 years of experience show higher readiness than those with 1–3 and 3–5 years of experience. These findings highlight the necessity of continuous training and mentoring to sustain and improve novice teachers’ competence in teaching 21st-century skills. The study recommends the development of focused professional development programs aimed at enhancing teachers’ abilities to teach critical and creative thinking.
Pelatihan Mengkontruksi Media Manual Menentukan Luas Daerah Poligon Bagi Para Guru SD di Gugus 10 Puyung Selatan Kecamatan Jonggat Sarjana, Ketut; Lu'luilmaknun, Ulfa; Junaidi; Primajati, Gilang; Khawarizmi, Bunial
Jurnal Pengabdian Magister Pendidikan IPA Vol 8 No 2 (2025): April-Juni 2025
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jpmpi.v8i2.10194

Abstract

Para guru SD di Gugus 10 Puyung belum optimal membelajarkan konsep geometri khususnya mengenai luas daerah poligon. Belum optinmalnya terlihat dari guru belum menggunakan alat bantu, pada hal konsep geometri adalah abstrak. Sedangkan siswa SD taraf berpikirnya masih kongkret. Belum digunakannya alat bantu disebabkan karena para guru belum memahami konsep tentang luas dan kemampuan untuk merancang medianya masih rendah. Tujuan yang ingin dicapai dalam kegiatan pengabdian ini adalah : 1) Meningkatkan kemampaun guru pendidkan dasar pengajar matematika di Yayasan Al-Aziziah tentang konsep dan prinsip luas daerah bidang datar, 2) Meningkatkan kemampuan merancang media manual dan pedoman pengembangannya untuk menentukan Formula atau prinsip luas daerah bidang datar. Permasalahan yang dialami oleh para guru terkait dengan merancang pedoman pengembangan media manual menetukan luas daerah bidang datar, maka solusi yang ditawarkan dalam pengabdian ini :1) Memberikan pemahaman tentang merancang media manual menentukan luas daerah bangun datar, 2) Simulasi dan praktek merancang pengembangan pembelajaran menggunakan media manual menentukan luas daerah dan 3) Diskusi dalam kelompok kerja dan presentasi tentang hasil kontruksi media manual dan langkah-langkah pengembangannya. Kegiatan Pengabdian pada Masyarakat yang telah dilakukan ternyata sangat efektif yakni terjadi perubahan kearah perbaikan yang signifikan karena skor rata-rata pre-tes = 4, 25 dan skor rata-rata post-tes = 7,30. Hasil uji statistic t diperoleh bahwa = 19,874 > ttabel = 2,093 pada tafar signifikasi 0,05. Jadi secara keseluruhan bahwa pengetahuan tentang luas daerah bangun datar dan keterampilan merancang pengebangan pembelajaran menggunakan alat peraga manual menentukan luas daerah bidang rata meningkat yang ditunjukkan oleh perubahan nilai rerata tersebut. Dengan diperolehnya hasil dari kegiatan ini diharapkan pelatihan ini diperluas dalam rangka memperkuat pelaksanaan kurikulum yang mengintegrasikan TPACK sehingga pembelajaran dapat membangun sifat kreatif dan kritis.
Deskripsi Kemampuan Berpikir Kreatif Dalam Mengerjakan Soal Pemecahan Masalah Ditinjau dari Gaya Kognitif Siswa Kelas VIII SMPN 13 Mataram Sabrina, Annisa; Sarjana, Ketut; Lu’luilmaknun, Ulfa
Griya Journal of Mathematics Education and Application Vol. 5 No. 3 (2025): September 2025
Publisher : Pendidikan Matematika FKIP Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/griya.v5i3.767

Abstract

The purpose of this study was to describe students’ creative thinking skills in solving problem-solving questions in terms of cognitive style of eighth-grade students at SMPN 13 Mataram. A qualitative research method was used with descriptive approach. Three instruments were used in this study, GEFT test question to determine student cognitive style, math question in the form of description questions on the material of Polyhedron, and interview guidelines. The subjects were chosen using purposive sampling and involved 6 students, with 3 students representing each cognitive style selected based on GEFT test. subsequently, a creative thinking skills test was administered, followed by a semi-structured interview to confirm the students’ creative thinking abilities. The data analysis technique used Miles and Hubermans, interactive analysis model, while data credibility was tested using technique triangulation. The results of the study showed that one subject with a field-dependent cognitive style did not meet any of the three indicators of creative thinking skills, two field-dependent subjects met the fluency indicators, two field independent subjects met the fluency and flexibility indicators, and one field independent subject met all three indicators of creative thinking skills.
Pengaruh Gaya Belajar dan Disiplin Belajar Terhadap Hasil belajar Matematika Siswa Yasin, Irwan; Sarjana, Ketut; Hikmah, Nurul
Mandalika Mathematics and Educations Journal Vol 7 No 3 (2025): Edisi September
Publisher : FKIP Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jm.v7i3.9775

Abstract

This study aims to determine the influence of learning styles and learning discipline on mathematics achievement among Grade XI students at SMAN 1 Kopang in the 2024/2025 academic year. This is a quantitative study using the ex post facto method. The population consists of 98 students, and the sample of 51 students was selected using simple random sampling based on the Taro Yamane formula. Data were collected through questionnaires and tests, and analyzed using linear regression. The relationship between learning styles and mathematics achievement is expressed by the equation Y= 0,501X1 + 27,995, with a correlation coefficient of 0.320, indicating a weak relationship. Meanwhile, the relationship between learning discipline and mathematics achievement is expressed by Y= 0,646X2 + 22,975, with a correlation of 0.435, indicating a moderate relationship. Simultaneously, learning styles and learning discipline together show a relationship with mathematics achievement through Y= 0,459X1 + 0,618X2, with a correlation coefficient of 0.524, categorized as moderate. The coefficient of determination is 24.4%, indicating that both variables simultaneously influence students’ mathematics learning outcomes.
Konsistensi Petunjuk Penggunaan Alat Peraga untuk Penentukan Luas Daerah Jajaran Genjang dan Luas Daerah Segitiga Bagi Siswa SD 6 Mataram Sarjana, Ketut; Handayani, Endang P.; Aminah, Siti; Nuraini, Nuraini
Jurnal Pendidikan, Sains, Geologi, dan Geofisika (GeoScienceEd Journal) Vol. 2 No. 1 (2021): June
Publisher : Mataram University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/goescienceedu.v2i1.90

Abstract

The purpose of this study is to know the consistency and effectiveness of the instructions for the use of props to determine the area of the parallel ranks and the area of triangles for students of SD 6 Mataram. It is realized that the research was conducted during the COVID 19 pandemic, so that the media is designed to be a learning vedio that describes the use of props and operational guidelines narrated on the vedio. Based on the observations of 9 elementary school teachers as narrative practitioners of operational guidelines, it appears in accordance with the instructions for the use of such props. The subjects of this study were grade VI Mataram elementary school students as young as 3 grades. The evaluation results showed that the average score obtained from the three pairs of classes did not differ significantly at the level of significance of 5 % because it was obtained < ttabel = 2.0002. On the other hand, the completion obtained by students in each class in each region > 80%. This means that students are complete in learning about the area of genakang ranks and the area of triangle area with KKM = 70. On the other hand, the message is the same because the average score that each class gets for each region does not differ significantly. Thus the application of instructions for the use of props determines the formula of the area of the parallel range and the area of the triangle consistently and the use of effective props for students of SD 6 Mataram
Co-Authors Ainun, Yusri Amrullah Amrullah Amrullah Amrullah Arjudin Arjudin AYU LESTARI Baidowi Baidowi Dwi Novitasari Handayani, Endang P. Harry Soeprianto Hastuti, Lia puji Intan Kertiyani, Ni Made Junaidi Junaidi Khawarizmi, Bunial Kurnia, Puspita Dwi Kurniawan, Eka Laila Hayati, Laila Lu’luilmaknun, Ulfa Magfirah, Nurul Muhammad Turmuzi Nani Kurniati Ni Made Intan Kertiyani Nuraini Nuraini Nurul Hikmah Nyoman Sridana Pradita, Ade Lina Eka Primajati, Gilang Puspita Sari, Ratih Rahmani , Irma Sabrina, Annisa Sazali, Nur Safira Siti Aminah Soepriyanto, Harry Sri Subarinah, Sri Sripatmi Ulfa Lu’luilmaknun Wahyu Triutami, Tabita Yasin, Irwan Yulis Tyaningsih, Ratna Zuhria Sya’bani, Gita