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All Journal MAJU : Jurnal Ilmiah Pendidikan Matematika Sang Pencerah: Jurnal Ilmiah Universitas Muhammadiyah Buton Ensiklopedia Education Review JURNAL PENDIDIKAN MIPA MES: Journal of Mathematics Education and Science SEPREN: Journal of Mathematics Education and Applied Community Development Journal: Jurnal Pengabdian Masyarakat International Journal of Educational Research and Social Sciences (IJERSC) Dharmas Education Journal (DE_Journal) Jurnal Kajian Ilmu Pendidikan (JKIP) JURNAL CURERE Innovative: Journal Of Social Science Research PKM Maju UDA International Journal of Trends in Mathematics Education Research (IJTMER) JIM: Jurnal Ilmiah Mahasiswa Pendidikan Sejarah
Lena Rosdiana Pangaribuan
Universitas HKBP Nommensen
Religion Humanities Chemistry Computer Science & IT Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Engineering Environmental Science Health Professions Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Mathematics Medicine & Pharmacology Nursing Physics Public Health Social Sciences Other

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Analysis of multicultural mathematics learning with RACISM and students' social attitudes Pangaribuan, Lena Rosdiana; Dewi, Izwita; Simamora, Elmanani
International Journal of Trends in Mathematics Education Research Vol 6, No 4 (2023)
Publisher : SAINTIS Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33122/ijtmer.v6i4.275

Abstract

Multicultural learning is a strategy for creating a learning environment and designing a learning experience that integrates culture as part of the learning process. In multicultural learning, culture becomes a method for students to transform the results of their observations into creative forms and principles of nature so that the role of students is not merely to imitate or receive information, but to act as a creation of meaning and understanding. Subjects such as Citizenship Education, Social Sciences, Natural Science, Cultural Arts and Skills are considered to contribute to multicultural learning, but mathematics subjects can also contribute. The research aimed to find out how the use of multicultural learning in mathematical learning, on flat building materials, affected students' racism and social attitudes. This is a qualitative descriptive study that uses the interview method to gather data. The results will be qualitatively analyzed. Interviews were conducted to find out how multiculturalism is integrated into learning, how knowledge construction is built through cultural influences, how prejudice reduction occurs, how equality pedagogy is implemented, how the empowerment of school culture occurs in the learning process, and how it impacts in tackling racism and social attitudes of students after using such learning.
Exploration of computational thinking ability in limit concept of algebraic function with interactive multimedia Lisa, Lisa; Pangaribuan, Lena Rosdiana; Panjaitan, Sorta Corie Ivana; Hasratuddin, Hasratuddin
International Journal of Trends in Mathematics Education Research Vol 6, No 3 (2023)
Publisher : SAINTIS Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33122/ijtmer.v6i3.262

Abstract

The difficulty of students in solving computational thinking (CT) problems related to the limit material of algebraic functions is that students do not understand the existing problems, difficulties regarding how the problem-solving pattern, difficulties when asked how to solve the problem, and difficulties when deciding and concluding from the problem. To overcome these difficulties, interactive multimedia is used, which is very important in modern education, it allows students to learn in a more interesting and interactive way, which can strengthen students' computational thinking skills. The purpose of this study was to determine the Exploration of Computational Thinking ability in the concept of Limit algebraic function with interactive multimedia and to determine the student's response to the use of interactive multimedia on the computational thinking ability of students in the material limit algebraic function in the department of tadris mathematics IAIN Lhokseumawe. The method used in this research is pre-experimental method, with the research design used is One Group Pretest-Posttest (Initial Test-Final Test on a single group. The research subjects were 1st semester students majoring in Tadris Metematics IAIN Lhokseumawe academic year 2023/2024. The research results obtained 1) From the calculation of the t test obtained the results of Tcount amounting to 2.583 and Ttable 1.684 (Ttest Ttable) or the probability value Sig 2 tailed α (0.000 0.05), then the hypothesis decision can be stated Ho rejected and Ha accepted. Thus, there is a significant difference in the exploration of computational thinking ability in the concept of limit function algebra with interactive multimedia. 2) the average percentage of very good categories obtained a value of 86%, good 13%, less 1%. The difference from the results of student responses with good to very good criteria is influenced by attitudes that show enthusiastic positive responses to interactive multimedia.
KEHIDUPAN SEHAT DAN SEJAHTERA : ANALISIS PERAN KESEHATAN MENTALDALAM PENINGKATAN PRODUKTIVITAS GENERASI Z Pardede, Dewi Lestari; Pardede, Lukman; Siahaan, Monalisa; Marpaung, Rince; Sihite, Muda Sakti Raja; Nababan, Melissa Febristira; Alexander, Irving Josafat; Sirait, Gloria; Pangaribuan, Lena Rosdiana
PKM Maju UDA Vol 5 No 3 (2024): OKTOBER
Publisher : Lembaga Penelitian dan Pengabdian Pada Masyarakat (LPPM) Universitas Darma Agung (UDA) Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46930/pkmmajuuda.v5i3.4935

Abstract

Kesehatan mental merupakan elemen penting dalam mendukung kehidupan sehat dan sejahtera, terutama di kalangan generasi Z yang menghadapi berbagai tantangan sosial, ekonomi, dan teknologi. Generasi Z, yang lahir antara tahun 1995 hingga 2010, dikenal sebagai generasi yang dekat dengan teknologi digital namun juga rentan terhadap gangguan kesehatan mental seperti depresi, kecemasan, dan stres. Penelitian ini bertujuan untuk menganalisis peran kesehatan mental dalam meningkatkan produktivitas generasi Z. Pendekatan ini menggabungkan analisis literatur dan data empiris untuk memahami dampak kesehatan mental terhadap kemampuan generasi Z dalam menjalani kehidupan produktif dan sejahtera. Hasil analisis menunjukkan bahwa kesehatan mental yang baik berkontribusi pada peningkatan kemampuan individu untuk mengelola tekanan, mengambil keputusan yang bijak, dan beradaptasi dengan perubahan. Sebaliknya, gangguan kesehatan mental dapat menurunkan produktivitas, meningkatkan risiko drop-out akademik, serta memengaruhi hubungan sosial. Faktor seperti stigma terhadap gangguan mental, kurangnya akses layanan kesehatan jiwa, dan eksposur terhadap tekanan digital menjadi hambatan utama. Oleh karena itu, upaya kolaboratif antara pemerintah, institusi pendidikan, keluarga, dan komunitas diperlukan untuk menyediakan dukungan promotif, preventif, kuratif, dan rehabilitatif. Dengan pendekatan yang holistik, generasi Z dapat menjadi individu yang lebih sehat secara mental, produktif, dan berkontribusi pada pembangunan bangsa.
The Increasing Students' Problem-Solving Abilities and Social Attitudes Using the Reciprocal Learning Model Pangaribuan, Lena Rosdiana; Hasratuddin, Hasratuddin; Sinaga, Bornok
International Journal of Trends in Mathematics Education Research Vol 7, No 2 (2024)
Publisher : SAINTIS Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33122/ijtmer.v7i2.353

Abstract

This research is a Classroom Action Research carried out in the Husni Thamrin school field with research subjects XI-IPA grade students the object of research is the application of models of reciprocal learning to increase mathematical problem solving and social attitude of students. This research consists of 2 cycles, each consisting of 2 meetings. The analysis data on cycle I indicated that (1) the average test scores for problem solving are 68,0 or 73% of the number of students who take the test can solve problems fairly minimal category and 27% had levels below the category of problem solving ability sufficient, (2) The value of obtaining students’ social attitudes is 2,0 including the bad category(3) current activity levels of students do not meet the ideal percentage of time specified, (4) there are 93,4% of total students taking learning to respond positively to the components and learning activities. In the second cycle, the results obtained : (1) the average test scores for problem solving abilities were 73,0 or 86,6% of the number of students taking the test can solve problems fairly minimal category and 13,4% had levels below the category of problem solving ability sufficient, (2) The value of obtaining students social attitudes is 3,50 including the excellent category, (3) current activity levels of students who meet the ideal percentage of the time, (4) there are 96,67% of the students gave a positive response to the components of learning activities. Based on the results of cycles I and II can be concluded that the implementation of reciprocal learning models can increase the problem-solving ability and social attitude of students.
Pengaruh Media Pembelajaran Berbasis Augmented Reality Terhadap Peningkatan Literasi Matematika Siswa Pada Materi Bangun Ruang Kubus Dan Balok Di Kelas VIII SMPN 19 Medan Malau, Vemmy Rebecca Rohana; Sinaga, Rani Farida; Pangaribuan, Lena Rosdiana; Naibaho, Tutiarny
Jurnal Kajian Ilmu Pendidikan (JKIP) Vol. 5 No. 3 (2024): Jurnal Kajian Ilmu Pendidikan (JKIP)
Publisher : Lembaga Riset dan Inovasi Almatani

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55583/jkip.v5i3.1057

Abstract

Penelitian ini bertujuan untuk mengetahui media pembelajaran berbasis Augmented Reality yang digunakan dalam kelas VIII akan mempengaruhi kemampuan literasi matematika siswa yang menggunakan materi bangun ruang kubus dan balok. Penelitian ini adalah Quasi Eksperiment yang menggunakan teknik cluster sampling. Sampel yang dikumpulkan untuk penelitian ini adalah kelas VIII-3 sebagai kelas eksperimen, dan kelas VIII-1 sebagai kelas kontrol. Alat yang digunakan adalah tes. Hasil perhitungan kemampuan literasi matematika menunjukkan bahwa nilai Sig.(2-tailed) sebesar 0,000 < 0,05 pada taraf signifikansi 5%. Nilai rata-rata untuk kelas eksperimen kemampuan literasi matematika adalah 84,096, sedangkan nilai rata-rata untuk kelas kontrol adalah 58,470. Kemudian dari hasil uji N-Gain diperoleh rata-rata skor kelas eskperimen 0,74 (kriteria tinggi) dan skor kelas kontrol 0,39 (kriteria sedang). Maka dapat disimpulkan bahwa media pembelajaran berbasis Augmented Reality meningkatkan literasi matematika siswa kelas VIII-3 SMPN 19 Medan pada materi bangun ruang kubus dan balok.
ANALISIS KEMAMPUAN PEMECAHAN MASALAH DENGAN HASIL BELAJAR ASPEK KOGNITIF SISWA PADA MATERI SISTEM PERSAMAAN LINEAR DUA VARIABEL (SPLDV) DI SMPS KARYAWAN TANJUNG MORAWA T.A.2024/2025 Hutagaol, Diana Kristina; Naibaho, Tutiarny; Hutauruk, Agusmanto; Pangaribuan, Lena Rosdiana
Jurnal Curere Vol 8, No 2 (2024): JURNAL CURERE
Publisher : Universitas Quality

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36764/jc.v8i2.1516

Abstract

This study aims to determine the relationship and magnitude of the relationship between problem-solving ability and students' cognitive learning outcomes in the Two-Variable Linear Equation System (SPLDV) material in grade VIII of Tanjung Morawa Employee Junior High School T.A 2024/2025. The type of research used in this study is quantitative descriptive research and the instrument used is a descriptive test. The population in this study is all grade VIII students of Tanjung Morawa Employee Junior High School 2024/2025 consisting of 5 classes. By using cluster random sampling, a sample of students in grades VIII-1 was obtained. Data analysis uses a simple correlation coefficient and a determination coefficient. The results of the calculation were obtained which showed that there was a relationship between problem-solving ability and learning outcomes of students' cognitive aspects. The relationship between problem-solving ability and learning outcomes in the cognitive aspect of students is 50.5%. So it can be concluded that there is a significant relationship between problem-solving ability and learning outcomes of students' cognitive aspects in the material of the Two-Variable Linear Equation System (SPLDV) in grade VIII of SMPS Tanjung Morawa Employees T.A 2024/2025.”
Poverty Line Forecasting Model in North Sumatera Province Using Double Exponential Smoothing Method Simbolon, Lolyta Damora; Sinaga, Rani Farida; Pangaribuan, Lena Rosdiana; Panjaitan, Ike Theresia
Sang Pencerah: Jurnal Ilmiah Universitas Muhammadiyah Buton Vol. 11 No. 1 (2025): Sang Pencerah: Jurnal Ilmiah Universitas Muhammadiyah Buton
Publisher : Lembaga Jurnal dan Publikasi Universitas Muhammadiyah Buton

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35326/pencerah.v11i1.6644

Abstract

One of the information that can be used as a consideration in preparing poverty alleviation strategies is data on the existence of poverty rates in the future. The poverty line is a variable for calculating the number of poor people. This study aims to determine the model and predict the poverty line in North Sumatra Province using the Double Exponential Smoothing method from Holt. This study uses time series data and predicts the poverty line for the coming year. In this study, data pattern analysis was carried out where the data pattern shows a trend, which means that the Double Exponential Smoothing Method from Holt is the appropriate method to use. Then the best parameter value was determined where the parameters used were the Alpha (α)and Gamma (γ)with the smallest MAPE (Mean Absolute Percentage Error) value. With the trial and error method, the Alpha parameter value ( α)of 0.1 and gamma ( γ)of 0.1 and the MAPE value of 2 percent) were obtained. The results of the study showed that this forecasting model has very good performance and the poverty line value continued to increase in the coming year.
EFEKTIVITAS PEMBELAJARAN BERBASIS MASALAH TERHADAP KEMAMPUAN NUMERASI SISWA PADA MATERI STATISTIKA DI KELAS X Toruan, Cici Orita Lumban; Pangaribuan, Lena Rosdiana; Sinaga, Samuel Juliardi
Dharmas Education Journal (DE_Journal) Vol 3 No 1 (2022): Juni
Publisher : Fakultas Keguruan dan Ilmu Pendidikan Univesitas Dharmas Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56667/dejournal.v3i1.257

Abstract

Penelitian ini bertujuan untuk mengetahui keefektifan model pembelajaran berbasis masalah terhadap kemampuan numerasi siswa kelas X SMA Swasta Hang Tuah Belawan T.A. 2024/2025. Penelitian yang digunakan adalah kuantitatif, jenis penelitian ini adalah penelitian Quasi Experiment. Populasi dalam penelitian adalah seluruh siswa kelas X SMA Swasta Hang Tuah Belawan yang terdiri dari 7 kelas. Dari populasi tersebut, yang menjadi sampel dalam penelitian ini adalah kelas X-3 dan kelas X-5 yang dianggap memiliki kemampuan awal yang sama. Dengan menggunakan teknik Cluster Random Sampling, maka diperoleh sampel penelitian sebagai kelas eksperimen (X-3) sebanyak 36 orang siswa dan sebagai kelas kontrol (X-5) sebanyak 33 orang siswa. Instrumen yang digunakan adalah tes dan observasi. Setelah dilakukan penelitian, diperoleh hasil t hitung 0,000 pada kemampuan numerasi yang menunjukkan bahwa nilai Asymp. Sig (2-tailed) sebesar 0,000 < 0,05 pada taraf signifikansi 5% yang berarti ada perbedaan model pembelajaran berbasis masalah dengan pembelajaran konvensional. Kualitas pembelajaran dilihat dari daya serap perseorangan, daya serap klasikal dan uji t. Berdasarkan daya serap perseorangan yang menggunakan model pembelajaran berbasis masalah terdapat 34 orang siswa yang tuntas dengan nilai di atas 70 dan 2 orang siswa yang tidak tuntas dengan nilai di bawah 70. Berdasarkan daya serap klasikal, untuk persentase ketuntasan klasikal adalah 94,44% dengan kategori sangat tinggi dan dari hasil uji-t disimpulkan bahwa pembelajaran berbasis masalah efektif terhadap kemampuan numerasi siswa. Hasil lembar observasi kesesuaian tingkat pembelajaran diperoleh skor 4,02 yang berarti kesesusaian tingkat pembelajaran sudah baik, pencapaian waktu ideal 4,3 yang berarti baik, maka dapat disimpulkan model pembelajaran pembelajaran berbasis masalah efektif terhadap kemampuan numerasi siswa pada materi statistika di kelas X SMA Swasta Hang Tuah Belawan T.A. 2024/2025.
PROJECT-BASED LEARNING ON STUDENTS' PROBLEM-SOLVING AND CRITICAL THINKING ABILITIES ON DATA CENTRALIZED MATERIAL IN CLASS X Farasi, Dosni Roham Damai Setia; Tambunan, Hardi; Pangaribuan, Lena Rosdiana
Dharmas Education Journal (DE_Journal) Vol 4 No 1 (2023): Juni
Publisher : Fakultas Keguruan dan Ilmu Pendidikan Univesitas Dharmas Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56667/de_journal.v4i1.602

Abstract

This study aims to determine the influence and effectiveness of project-based learning on students' problem-solving and critical thinking skills on data centering material in class X of SMA Negeri 1 Percut Sei Tuan in the academic year 2024/2025. This type of research is quantitative research with the research population being all students of class X of SMA Negeri 1 Percut Sei Tuan in the academic year 2024/2025. With purposive sampling technique, the research sample was obtained, namely classes X-7 and X-10. The instruments used were student learning outcome tests in the form of descriptions that had been validated, questionnaires to determine the achievement of effectiveness indicators, namely learning systematics, teacher communication and student responses, and student activity observation sheets. The results of the study showed that: (1) project-based learning has an effect on problem-solving skills (2) the effect of project-based learning on problem-solving skills is in the moderate category (3) project-based learning has an effect on students' critical thinking skills (4) the effect of project-based learning on students' critical thinking skills is in the moderate category (5) project-based learning is effective on problem-solving skills and (6) project-based learning is effective on students' critical thinking skills..
Pengembangan Soal Matematika Setara Pisa Pada Konteks Jajanan Daerah Sumatera Utara Pangaribuan*, Firman; Simamora, Rianita; Pangaribuan, Lena Rosdiana
JIM: Jurnal Ilmiah Mahasiswa Pendidikan Sejarah Vol 8, No 4 (2023): Agustus, Social Religious, History of low, Social Econmic and Humanities
Publisher : Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24815/jimps.v8i4.26553

Abstract

Sebelum adanya Kurikulum 2013, tujuan pembelajaran terkesan lebih mengutamakan aspek kognitif siswa, sementara aspek afektif dan psikomotor hanyalah sebagai dampak pengiring, yang belum menekankan aspek literasi matematika PISA. Penelitian ini bertujuan untuk menghasilkan soal matematika setara PISA dengan konten perubahan dan keterkaitannya yang valid, praktis, dan untuk mengetahui efek potensial soal terhadap kemampuan literasi matematika siswa kelas IX SMP dengan konteks jajanan di Sumatera Utara. Jenis penelitian adalah penelitian pengembangan. Penelitian ini akan mengembangkan 4 butir soal sejenis PISA dengan konten perubahan dan keterkaitannya dengan konteks satu butir soal kue lappet model limas, dua butir soal kue bika ambon model tabung, dan satu butir soal kue bika ambon model balok. Validitas dari soal telah tampak berdasarkan komentar validator ahli dan validator guru dan respon siswa yang menyatakan bahwa konten, isi materi, dan bahasa juga berdasarkan jawaban siswa pada tahap one-one menunjukkan bahwa soal adalah valid. Hasil pengembangan soal ini diujicobakan kepada siswa kelas IX SMP sebanyak 32 siswa dan hanya ada satu siswa yang bisa menyelesaikannya. Untuk menunjukkan data yang lebih baik lagi, soal ini perlu diujikan lagi kepada siswa kelas X SMA tentu dengan usia yang belum jauh dari usia 15 tahun, sehingga aspek efek potensial lebih tampak lagi.
Co-Authors Adi Suarman Situmorang, Adi Suarman Bornok Sinaga Br Purba, Winda Sari br. Kembaren, Halmaliana Lorensia Christina Sitepu Debora Marito Sinaga Farasi, Dosni Roham Damai Setia Firman Pangaribuan Gloria Sirait Hasratuddin Hasratuddin Hutagaol, Diana Kristina Hutauruk, Agusmanto Irving Josafat Alexander Izwita Dewi Laura Stephany Situmorang Lisa Lisa, Lisa Lukman Pardede Malau, Vemmy Rebecca Rohana Manurung, Lusi Marpaung, Rince Monalisa Martha Siahaan Muda Sakti Raja Sihite Muda Sakti Raja Sihite Nababan, Melissa Febristira Nadya Insani Sidabutar Naibaho, Tutiarny Panjaitan, Ike Theresia Panjaitan, Simon Panjaitan, Simon Maruli Panjaitan, Sorta Corie Ivana Pardede, Dewi Lestari Purba, Putri Enzelina Rani Farida Sinaga Rekha Samaria Manalu Rika Imadawati Purba Rospita Hutasoit Ruth Mayasari Simanjuntak Sanita Angelina Saragih Sihite, Muda Sakti Raja Simamora, Elmanani Simamora, Rianita Simbolon, Lolyta Damora Simon M. Panjaitan Sinaga, Julianti sinaga, samuel juliardi Tambunan, Hardi Thessa Lamora Situmorang Toruan, Cici Orita Lumban Zebua, Stepani