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All Journal JPMS (Jurnal Pendidikan Matematika dan Sains) EKSAKTA : Jurnal Penelitian dan Pembelajaran MIPA JURNAL EKSAKTA PENDIDIKAN (JEP) PeTeKa JURNAL MathEdu (Mathematic Education Journal) Minda Baharu Jurnal Pendidikan dan Konseling Edumatika Komunita: Jurnal Pengabdian dan Pemberdayaan Masyarakat Jurnal Hasil Penelitian dan Pengembangan (JHPP) Jurnal Pengabdian Kepada Masyarakat Radisi Jurnal KALANDRA Jurnal Cermatika Jurnal Cermatika
Yuni Rhamayanti
Universitas Graha Nusantara
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PENGARUH MODEL ACTIVE LEARNING QUIZ TEAM Yuni Rhamayanti; Nandini Faradilla; Wulan Eka Putri; Sri Rejeki Pakpahan; Marozi Hardiansyah
JURNAL CERMATIKA Vol. 2 No. 2 (2022): Jurnal Cermatika Vol 2 No 2 Oktober 2022
Publisher : Program Studi Matematika Universitas Graha Nusantara Padangsidimpuan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.64168/cermatika.v2i2.1045

Abstract

The active learning quiz team model is one type of active learning that serves to liven up the atmosphere, increase their sense of responsibility for what they learn. The reason for using the active learning quiz team model is because this strategy is considered to make learning fun and students can actively participate in the learning process. At SMPN 2 Batangtoru Kab. South Tapanuli teachers have not used models, media or methods so that students' interest and activity have not been maximized. This study aims to explain: (1) how the effect of using the active learning quiz team model on the learning interest of class VIII students of SMPN 2 Batangtoru, Kab. South Tapanuli (2) how is the effect of using the quiz team model on the learning interest of class VIII students of SMPN 2 Batangtoru Kab. South Tapanuli and (3) how is the description of the activeness of class VIII students of SMPN 2 Batangtoru Kab. South Tapanuli. This type of research is quantitative research. The research design used is experimental research. In this study the population was all fourth grade students at SMPN 2 Batangtoru Kab. South Tapanuli with a total of 46 students with 23 students for the experimental class and 23 students as the control class.Sampling techniques and population samples. The data collection instruments used tests and questionnaires. The data analysis technique in this study used the T-test. Based on the calculated data, it showed that the average student interest in learning had a t-count value of 2.831 while t-table was 1.684, 0.05 and the average learning outcomes students have a t count value of 6.258 while t table 1.697, 0.05 the above variable shows t count > t table, meaning that Ho is rejected and Ha is accepted, so there is an effect of the quiz team strategy on interest in learning in mathematics learning for class VIII students
Penerapan Model Pembelajaran Kooperatif Tipe Examples Non Examples Terhadap Kemampuan Berpikir Kritis Matematika Siswa Kelas VIII SMP Negeri 9 Padangsidimpuan TP. 2022/2023 Elvi Rosalinda Siagian; Yuni Rhamayanti; Susi Sulastri Lubis
JURNAL CERMATIKA Vol. 3 No. 2 (2023): Jurnal Cermatika Vol 3 No 2 Oktober 2023
Publisher : Program Studi Matematika Universitas Graha Nusantara Padangsidimpuan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.64168/cermatika.v3i2.1344

Abstract

This The problem in this research is the low ability of students' critical thinking in mathematics. To overcome this problem, this study applied the Example Non Example learning model. The aims of this study were (1) to find out students' mathematical critical thinking skills which were taught using the Example Non-Example learning model on the subject of geometric shapes better than learning without using the Example Non-Example learning model in class VIII SMP Negeri 9 Padangsidimpuan. (2) To find out the size of students' active learning activities in learning mathematics in the experimental class and the control class. The type of research used in this research is experimental research. The population in this study were students of class VIII SMP Negeri 9 Padangsidimpuan. The research sampling technique is random sampling. The instruments used to collect data were tests of critical thinking skills in mathematics in the form of essays and observations of students' learning activities. The learning tools used in this study are lesson plans, worksheets, and test instruments. The test used is a test that has been validated and is suitable for use. Hypothesis testing used two way Anava with different number of cells, with a significance level of 0.05. The results of the analysis on the two-way Anava with unequal number of cells show: (1) Students who get the Example Non-Example learning model and the ordinary learning model get different learning outcomes in mathematics (Fa = 72.82 with Ftable = 3.97). (2) Students with high, medium, and low critical thinking skills have different learning outcomes in mathematics (Fb = 38.75 with Ftable = 3.12). (3) The results of learning mathematics between students in each learning model for each level of critical thinking skills are not different (Fab = 3.59 with Ftable = 3.12). (4) The results of observing the assessment of the ability of students' learning activities in the experimental class obtained an average of 3.04 and a percentage of 76.06% with a good grade qualification while for the control class obtained an average of 2.48 and a percentage of 62.09% with a qualifying score Enough.
Penerapan Hands On Mind On Activity Dalam Pembelajaran Matematika Dengan Pendekatan Kontekstual Sebagai Upaya Meningkatkan Kemampuan Berpikir Kritis Matematika Siswa SMA Negeri 1 Trio Kharisma; Yuni Rhamayanti; Harahap, adek Nilasari
JURNAL CERMATIKA Vol. 3 No. 1 (2023): Jurnal Cermatika Vol 3 No 1 April 2023
Publisher : Program Studi Matematika Universitas Graha Nusantara Padangsidimpuan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.64168/cermatika.v3i1.1425

Abstract

Penelitian ini bertujuan untuk mengetahui apakah penerapan model Hands on minds on activity dengan pendekatan kontekstual dapat meningkatkan kemampuan berpikir kritis matematika secara efektif pada siswa SMA Negeri 1 Angkola Timur Tahun Ajaran 2022/2023. Penelitian ini dilaksanakan dalam 2 siklus dalam setiap siklus terdiri dari 2 kali pertemuan. Pada setiap siklus, siswa diberi tes akhir untuk mengukur kemampuan berpikir kritis matematika siswa pada materi aturan pencacahan. Instrumen yang digunakan dalam pengumpulan data pada penelitian ini adalah tes. Hasil penelitian dari 30 orang siswa pada tes awal terdapat 11 orang siswa yang mencapai ketuntasan belajar yaitu 36,7% dengan nilai rata- rata 53,8 ternyata pada tes awal belum tercapai maka harus dilanjutkan ke siklus I ternyata tingkat ketuntasan belajar siswa sedikit meningkat yaitu terdapat 16 orang siswa yang mencapai ketuntasan belajar yaitu 53,3% dengan nilai rata-rata 60,8, ternyata pada siklus I belum tercapai maka harus dilanjutkan ke siklus II ternyata tingkat ketuntasan belajar siswa semakin meningkat yaitu terdapat 26 orang siswa yang mencapai ketuntasan belajar 86,7% dengan rata- rata 73,9. Berdasarkan pembahasan hasil penelitian diperoleh bahwa adanya peningkatan kemampuan berpikir kritis matematika siswa pada pokok bahasan aturan pencacahan di kelas XI IPS SMA Negeri 1 Angkola Timur Tahun Ajaran 2022/2023 melalui penerapan model Hands on mind on activity dengan pendekatan kontekstual.
UPAYA MENINGKATKAN PEMAHAMAN KONSEP MATEMATIKA MELALUI PENERAPAN MODEL QUANTUM LEARNING SISWA KELAS VIII-2 SMP NEGERI 2 BATAHAN TP. 2022/2023 Mansukri; Yuni Rhamayanti; Harahap, adek Nilasari
JURNAL CERMATIKA Vol. 4 No. 1 (2024): Jurnal Cermatika Vol 4 No 1 April 2024
Publisher : Program Studi Matematika Universitas Graha Nusantara Padangsidimpuan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.64168/cermatika.v4i1.1432

Abstract

Penelitian ini merupakan penelitian tindakan kelas (PTK) dengan mengambil subjek penelitian siswa Kelas di kelas VIII-2 yang terdiri dari 30 orang dengan komposisi perempuan 17 orang dan laki-laki 13 orang. Sedangkan Objek Penelitian ini adalah penggunaan model Quantum Learning sebagai upaya meningkatkan kemampuan Pemahaman Konsep siswa pada pokok bahasan Bangun Ruang. Hasil penelitian ini ini menunjukkan hasil tes pemahaman konsep matematika siswa di kelas VIII-2 setelah diberi perlakuan dilihat dari hasil tes belajar siswa pada siklus I sebesar 73,33 % tuntas, dan pada siklus II diperoleh persentase sebesar 90,00% tuntas. Berdasarkan data hasil penelitian melalui observer siswa siklus I kadar aktivitas sebesar 70,33%, dan pada siklus II d kadar aktivitas sebesar 94,00%. Berdasarkan hasil data persentase melalui observer guru diperoleh siklus I nilai kadar aktivitas sebesar 70,33 % dan pada siklus II nilai kadar aktivitas sebesar 94,00 %. Jadi, dapat disimpulkan bahwa kemampuan guru dalam mengelola pembelajaran termasuk pada kategori “sangat baik” dan sudah memenuhi kriteria pencapaian penelitian, maka penelitian ini berhenti pada siklus II. Berdasarkan hasil penelitian tersebut, maka penerapan model pembelajaran Quantum Learning dapat meningkatkan pemahaman konsep matematika siswa pada pokok bahasan bangun ruang di kelas VIII-2 SMP Negeri 2 Batahan Tahun Pelajaran 2021/2022.
Pengaruh Metode Inquiry Terhadap Kemampuan Koneksi Matematika Kelas X SMK Swasta Teruna Padangsidimpuan andika saputra harahap; Yuni Rhamayanti; Puspa Riani Nasution
JURNAL CERMATIKA Vol. 5 No. 2 (2025): Jurnal Cermatika Vol 5 No 2 Oktober 2025
Publisher : Program Studi Matematika Universitas Graha Nusantara Padangsidimpuan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.64168/cermatika.v5i2.1664

Abstract

This study aims to determine the effect of the inquiry method on students' mathematical connection ability in Class X of SMK Swasta Teruna Padangsidimpuan. Mathematical connection ability is an essential competency in mathematics learning that includes students’ ability to connect mathematical concepts, relate mathematics to real-life situations, and apply various mathematical representations. This research is a quasi-experimental study using a Non-Equivalent Control Group Design. The sample consisted of two classes: the experimental class, which received treatment using the inquiry method, and the control class, which was taught using conventional methods, with 20 students in each class. The instrument used in this study was a mathematical connection ability test in the form of essay questions that had been validated.The results showed that the average post-test score in the experimental class was 77.05, while in the control class it was 53.90. The independent sample t-test resulted in a significance value of 0.000 < 0.05, indicating a significant difference between the two groups. Therefore, it can be concluded that the inquiry learning method significantly affects the improvement of students’ mathematical connection ability.
2. PENERAPAN MODEL PEMBELAJARAAN INKUIRI TERBIMBING UNTUK MENINGKATKAN HASIL BELAJAR MATEMATIKA SISWA DI SMK NEGERI 1 KABUPATEN PADANG LAWAS Nenni Herawati Siregar; Yuni Rhamayanti; Nova Christina Dewi
JURNAL CERMATIKA Vol. 2 No. 1 (2022): Jurnal Cermatika Vol 2 No 1 April 2022
Publisher : Program Studi Matematika Universitas Graha Nusantara Padangsidimpuan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.64168/cermatika.v2i1.1032

Abstract

From the results of the validity of the first cycle student problem solving test instrument above, it was found that all items had a minimum validation correlation of moderate category, so that all items could be used for evaluation in this study. the results of the difficulty level of the problem-solving ability test instrument above, it was found that the percentage interval of the difficulty level of the questions was at 27%-73%, with the minimum item category being moderate. All questions are not too difficult and not too easy, so they can be used for evaluation in this study. The implementation stages of this classroom action research include: Action planning, In this stage a plan will be made in the form of activities that will be carried out by the teacher in planning classroom action research on the application of problem-based learning strategies, Implementation of actions, In this stage, the teacher conveys the competencies to be achieved during the learning process, Observation, In this stage, observations are made of student and teacher activities in the learning process, Reflection. At this stage, classroom action research will continue if the level of problem-solving ability of students in the circle material mathematics lesson is marked by student learning mastery that has not reached 80% in the good category
ANALISIS KESULITAN BELAJAR SISWA DALAM MEMAHAMI KONSEP BANGUN DATAR DI KELAS V SD NEGERI 100612 SORIK TAHUN AJARAN 2021-2022 Yuni Rhamayanti; Riski Handayani; Ramadhan Saleh
JURNAL CERMATIKA Vol. 2 No. 1 (2022): Jurnal Cermatika Vol 2 No 1 April 2022
Publisher : Program Studi Matematika Universitas Graha Nusantara Padangsidimpuan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.64168/cermatika.v2i1.1034

Abstract

In this study, the problem raised is the difficulty of students in learning mathematics, generally resulting from several problems that arise in the learning process, there are still many students who have difficulty understanding the concept of flat shapes even though in previous classes they have studied the material but the data obtained show there are still many students who have learning difficulties below the average. This study aims to find out where students have difficulty learning the Bangun Datar material, what factors influence students' mathematics learning difficulties in the Bangun Datar material and what are the teacher's efforts in overcoming students' mathematics learning difficulties at SD Negeri 100612 Sorik. This research is a qualitative research that uses descriptive methods to collect data by using tests and interviews. which was held at SD Negeri 100612 Sorik, from February 30 to March 25, 2022. The data sources in this study were students and mathematics teachers for grade 5 at SD Negeri 100612 Sorik.
PENGARUH PENGUASAAN KONSEP TEOREMA LIMIT TERHADAP KEMAMPUAN MENYELESAIKAN SOAL-SOAL BARISAN DAN DERET PADA MAHASISWA Haritsah Hammamah Herahap; Yuni Rhamayanti; Yeni Cholida
JURNAL CERMATIKA Vol. 2 No. 1 (2022): Jurnal Cermatika Vol 2 No 1 April 2022
Publisher : Program Studi Matematika Universitas Graha Nusantara Padangsidimpuan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.64168/cermatika.v2i1.1035

Abstract

The background of this research is that the ability of students of the Mathematics Department of UGN Padangsidimpuan in solving problems in the Complex Analysis course, especially on the material of Rows and Complex Series, has not been satisfactory. This is because students are less able to master the concept of the Limit Theorem. Mastery of the concept of the Limit Theorem is one of the factors that affect students' ability to solve complex Rows and Series problems so that they can obtain satisfactory results. This type of research uses quantitative methods with an ex fost facto approach. The population of this study were 102 students of the Mathematics Department of UGN Padangsidimpuan, while the sample was 38 students. Sampling was done by simple random sampling technique. The instrument used as data collection is a test. The analyzed data were obtained in two stages. The first stage is descriptive statistical analysis stage and the second stage is inferential statistical analysis. Based on this, this study aims to determine the significant influence between mastery of the concept of the Limit Theorem on the ability to solve problems of sequences and series in students. The results obtained in this study indicate that there is a significant effect between the X variable and the Y variable. This is evidenced by the calculation of the T test, with the results Tcount > T table or 55.84 > 4.11.
PENERAPAN MODEL PEMBELAJARAN INKUIRI TERBIMBING UNTUK MENINGKATKAN KEMAMPUAN PEMECAHAN MASALAH PADA MATERI SISTEM PERSAMAAN LINEAR DUA VARIABEL DI KELAS X SMK NEGERI 1 SIBUHUAN Melida Warni Nasution; Yuni Rhamayanti; Nova Christina Dewi
JURNAL CERMATIKA Vol. 2 No. 1 (2022): Jurnal Cermatika Vol 2 No 1 April 2022
Publisher : Program Studi Matematika Universitas Graha Nusantara Padangsidimpuan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.64168/cermatika.v2i1.1040

Abstract

This study uses problem solving methods in the experimental class A and the cooperative method with the type of Guided Inquiry in the experimental class B. In research that uses problem solving learning, students' mathematical problem solving abilities in experimental class A will be seen. Data on students' mathematical problem solving abilities are obtained by providing description test as many as 5 questions on the pretest and posttest. From previous research data, the researcher obtained tcount = 1.950 and ttable = 1.670. This indicates that the learning outcomes taught using problem solving methods are different from problem solving abilities using the cooperative method of Guided Inquiry. Meanwhile, in the cooperative model of the type of Guided Inquiry, the class became a little noisier and slower because of the change in groups from the initial group to the expert group and from the expert group back to the initial group again. The results of these calculations indicate that the problem solving method and the cooperative method of the type of Guided Inquiry have differences in students' mathematical problem solving abilities. The test results on the problem-solving method and the cooperative method of the Guided Inquiry type showed that students had the ability to state what was contained in the problem into a mathematical model and students could express the correct reasons for the questions given.
PENERAPAN MODEL PEMBELAJARAN DISCOVERY LEARNING UNTUK MENINGKATKAN KEMAMPUAN PEMECAHAN MASALAH MATEMATIKA SISWA KELAS VII DI SMP NEGERI 4 MUARA BATANG GADIS Habibah; Yuni Rhamayanti; Puspa Riani Nasution
JURNAL CERMATIKA Vol. 2 No. 2 (2022): Jurnal Cermatika Vol 2 No 2 Oktober 2022
Publisher : Program Studi Matematika Universitas Graha Nusantara Padangsidimpuan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.64168/cermatika.v2i2.1041

Abstract

This study aims: (1) To find out the improvement of students' mathematical problem solving by applying the Discovery Learning learning model to the subject of social arithmetic in class VII SMP Negeri 4 Muara Batang Gadis in the 2021/2022 academic year, (2) To determine the level of achievement of problem solving abilities. students' mathematics by applying the Discovery Learning learning model to the subject of social arithmetic in class VII SMP Negeri 4 Muara Batang Gadis for the 2021/2022 academic year, (3) To find out the management of learning carried out by the teacher by applying the Discovery Learning learning model based on problem solving on the subject of arithmetic Social studies in class VII SMP Negeri 4 Muara Batang Gadis teaching 2021/2022 This type of research is classroom action research. The level of problem solving ability in the first cycle is moderate with a class average score of 70.083 with 26 students (72.22%) Implementation of actions in cycle II, high The problem solving ability of students is high with a class average score of 80.47 with 35 students or 80.083% of all students. Thus it can be said that the class has been completed in learning, there are 80% of students who have a moderate level of problem solving ability.
Co-Authors ., Rayana Abrizal Hasibuan Adek Nilasari Harahap Agus Makmur Ali Djamhuri Alwendi, Alwendi andika saputra harahap Ayathollah Khomeni Dhuraba Qodriansyah elvi rosalinda siagian Eni Sumanti Nasution Evitamala Siregar fatima sari Fauziah Nasution Fitriani Fitriani Habibah Hammamah Harahap, Haritsah Harahap, Adek Nilasari harahap, mukmin Haritsah Hammamah Harahap Haritsah Hammamah Herahap Isra Novidayanti Matondang khoirunniasa . Khomeni, Ayathollah Lynni Suryani Mansukri Mansukri Marozi Hardiansyah Melida Warni Nasution mhd fahmi lubis Mohd. Arifin Nandini Faradilla Nenni Herawati Siregar Nida Siregar, Rama Nova Christina Dewi Nur Atika Lubis Nurdalilah Nurdalilah Nurdalilah Nurdalilah Nurdalilah, Nurdalilah Nurhawani Sitompul Puspa Riani Nasution Puspa Riani Nasution Putri Lestari Simamora Rahima Safitra Pane Ramadhan Saleh Riski Handayani robi nastain Sri Rejeki Pakpahan Sri Rezeki Pakpahan Susi Sulastri Lubis Susi Sulastri Lubis Tinur Rahmawati Torang Siregar Trio Kharisma Trio Kharisma Try Wahyuni Wilda Harianti Wulan Eka Putri Yeni Cholida Yeni Cholidah Lubis