Jurnal Cermatika https://jurnal.ugn.ac.id/index.php/cermatika <p>JURNAL CERMATIKA p:ISSN :&nbsp;2502-5139<strong>&nbsp;</strong>&nbsp;dan e-ISSN : 2776:6039 Merupakan salah satu&nbsp; jurnal elektronik&nbsp; di&nbsp; Universitas Graha Nusantara Padangsidimpuan.&nbsp;Sebagai media komunikasi antar peminat bidang matematika dan aplikasinya. Ruang lingkup JURNALCERMATIKA&nbsp;meliputi analisis, aljabar, topologi, grafik, pendekatan simulasi numerik atau yang dikenal dengan analisis numerik.</p> program studi matematika universitas Graha Nusantara padangsidimpuan en-US Jurnal Cermatika 2502-5139 Penerapan Pembelajaran Kooperatif Tipeteam Games Tournment (TGT)Untuk Meningkatkan Aktivitas Belajarmatematika Siswa Kelas VIII MTs YPKS Padangsidimpuan https://jurnal.ugn.ac.id/index.php/cermatika/article/view/1340 <p>This research aims to determine the increase in student learning activities with Team Games Tournament (TGT) type cooperative learning at MTs YPKS Padangsidimpuan. This type of research is classroom action research. The object of this research is to increase student learning activities through TGT type cooperative learning in class VIII MTs YPKS Padangsidimpuan. The research subjects were 33 students in class VIII-4. /friend's explanation was 18%, the activity of reading student books/LKS was 2.5%, the activity of noting the explanation of the teacher/friend/from the book was 12%. , distribution activities by 16%, and activities that are not relevant to learning by 51%. So it was found that student activities for each activity category had not yet reached the ideal activity criteria. The results of the analysis after being given action II were from the results of observing the activity of listening/paying attention to the teacher/friend's explanation by 46%, the activity of reading student books/LKS by 7.5%, the activity of noting the teacher/friend's explanation/from the book by 10.5%, the activity division was 19%, and activities that were not relevant to learning were 17%. This shows that student activities for the four activity categories have experienced improvement, but have met the ideal activity criteria</p> Siti Gabena Hasibuan Nova Christina Dewi Nurdalilah Copyright (c) 2023-12-07 2023-12-07 3 2 1 7 Pengaruh Strategi Pembelajaran Reading, Questioning, And Aswering (RQA)-Terhadap Hasil Belajar Siswa Pada Pokok Bahasan Sistem Persamaan Linear Di Kelas X SMK Negeri 1 Angkola Timur https://jurnal.ugn.ac.id/index.php/cermatika/article/view/1342 <p>This research was conducted at SMK Negeri 1 East Angkola with the aim of 1) To find the average student learning outcomes using RQE learning on the subject of systems of linear equations in two variables at SMK Negeri 1 East Angkola 2) To find out the average results of those who did not use RQE learning strategy on the subject of systems of linear equations in East Angkola 3) To find out whether there is an influence of the RQE learning strategy on mathematics learning outcomes in class X at SMK Negeri 1 East Angkola. This research uses the Quasi Experiment method. Data collection was carried out using the final test technique (post test). The samples in this study were class X RPL 1 and class X RPL 2 where class RPL 1 was used as the experimental class and class RPL 2 was used as the control class. This research data was analyzed using SPSS Anova statistical analysis. The research results show that t count &gt; t table, or Ho is rejected (8.646 &gt; 2.034). So, it can be concluded that there is an influence of the use of the Reading Questioning and Answering learning strategy on the learning outcomes in mathematics for class</p> Muhammad Fahmi Lubis Susi Sulastri Lubis Haritsah Hammamah Harahap Copyright (c) 2023 Jurnal Cermatika 2023-12-07 2023-12-07 3 2 8 14 Peningkatan Aktivitas Dan Kreativitas Belajar Matematika Siswa Melalui Model Pembelajaran Kontekstual https://jurnal.ugn.ac.id/index.php/cermatika/article/view/1343 <p>This type of research is Classroom ActionResearch (CAR) by taking research subjects from Class X TKJ SMKS Al-Hasanah Sibuhuan. It consists of 20 students, 10 male students and 10 female students. The object taken in this study is to increase students' mathematics learning creativity in implementing classroom learning, which specializes in contextual learning strategies, as well as the teacher's role in classroom management. This Classroom Action Research (CAR) was carried out in two cycles which were equipped with Learning Implementation Plans (RPP), Teacher Handbooks (BPG), Student Worksheets (LKS), and test instruments including tests of students' critical thinking skills, student activity observation sheets, as well as teacher performance observation sheets managing learning. Before the instrument was used, it was tested first and obtained from the 10 tests tested there were 10 valid tests, 5 tests for cycle I and 5 tests for cycle II. The calculation shows that the test reliability coefficient is 0.84 for cycle I and 0.89 for cycle II and is stated learning creativity abilities in the first cycle obtained 65% of the minimum criteria sufficient, and for the second cycle 90%. The results of observations of student activity 79.58% of the criteria in the first cycle, increased to 88.33% in the second cycle. From the data analysis, it shows that the implementation of the actions taken has improved the teacher's ability to manage learning, from "Good enough" in cycle I to "Good" in cycle II.</p> Nurdalilah Reski Wahyuni Hasibuan Puspa Riani Nasution3 Copyright (c) 2023 Jurnal Cermatika 2023-12-07 2023-12-07 3 2 15 23 Penerapan Model Pembelajaran Kooperatif Tipe Examples Non Examples Terhadap Kemampuan Berpikir Kritis Matematika Siswa Kelas VIII SMP Negeri 9 Padangsidimpuan TP. 2022/2023 https://jurnal.ugn.ac.id/index.php/cermatika/article/view/1344 <p>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.</p> Elvi Rosalinda Siagian Yuni Rhamayanti Susi Sulastri Lubis Copyright (c) 2023 Jurnal Cermatika 2023-12-07 2023-12-07 3 2 24 35 Penerapan Media Pembelajaran Powerpoint Dalam Meningkatkan Hasil Belajar Matematika di SMK Negeri 1 Aek Nabara Barumun https://jurnal.ugn.ac.id/index.php/cermatika/article/view/1345 <p>The research method used was classroom action research using two cycles carried out in the first semester with SPLDV material. The sample in this research was 36 students in class X Office Automation and Management at SMK Negeri 1 Aek Nabara. The class used as a sample is class X Office Automation and Management at SMK Negeri 1 Aek Nabara which will use Power Point media in learning. The results of the research show that the ability of students' learning outcomes in learning Mathematics through the PowerPoint media learning model for class , then increased to 88.55 in the "Good" category in cycle II. The results obtained in cycle II showed that the expected categories had been fulfilled, namely with an average score of 75 and classical completion of 75% of students getting a minimum score of Good.</p> Nurhayati Pulungan Nurdalilah Susi Sulastri Lubis Mohd. Arifin Copyright (c) 2023 Jurnal Cermatika 2023-12-07 2023-12-07 3 2 36 42 Upaya Meningkatkan Hasil Belajar Dengan Model Pembelajaran Demontrasi Berbantuan Lembarkerja Siswa (LKS) Di Kelas VII SMP Negeri 9 Padangsidimpuan Tahun Ajaran 2021/2022 https://jurnal.ugn.ac.id/index.php/cermatika/article/view/1347 <p>This research method used is classroom action research using two cycles carried out in the first semester with Set material.The population in this study were VII grade students of SMP Negeri 9 Padangsidempuan as many as 30 people. The class that was used as the sample was class VII-2 of SMP Negeri 9 Padangsidimpuan with 30 students. As the sample is class VII-2 SMP Negeri 9 Padangsidimpuan which will use the demonstration method aided by the set material. will use the demonstration method assisted by student worksheets (lks) in learning. learning. The ability of student learning outcomes in learning mathematics inclass VII-2 SMP Negeri 9 Padangsidempuan on set material increased by 62.4% with the category "sufficient" in cycle I, then increased to 91% with the category "good" in cycle II. with the category "good" in cycle II. Increased student learning activities on set material in the cycle with a percentage result of 75.08% and in cycle II the results increased to 87.27%. For teacher ability in cycle I obtained an average activity score of 3.40 (good) and in cycle IIobtained an average activity score of 3.68 (very good).</p> Makrup Hasbi Adek Nilasari Harahap Haritsah Hammamah Harahap Copyright (c) 2023 Jurnal Cermatika 2023-12-14 2023-12-14 3 2 43 47 Penerapan Model Pembelajaran Kooperatif Tipe Talking Chip Untuk Meningkatkan Hasil Belajar Siswa Pada Mata Pelajaran Matematika Di SMP Negeri 7 Padangsidimpuan https://jurnal.ugn.ac.id/index.php/cermatika/article/view/1348 <p>The research method used is classroom action research using two cycles carried out in the first semester with Number Pattern Material. The sample in this research was 30 students in class VIII-2 of SMP Negeri 7 Padangsidimpuan who would use the Talking Chip Learning Model in learning. The results of the research show that the ability of students' learning outcomes in learning Mathematics through the Talking Chip learning model for class VIII-2 students at SMP Negeri 7 Padangsidimpuan in the Number Patterns material for the 2022/2023 academic year has increased with a completion percentage of 93.3% in the "Good" category. Furthermore, the teacher's ability to manage learning increased to 97.90% with the "Very Good" category. For this reason, the expected results have been fulfilled because they are in accordance with the minimum good category with a percentage of 80%.</p> Susi Sulastri Lubis Mohd.Arifin Lubis Ida Trisnawati Copyright (c) 2023 Jurnal Cermatika 2023-12-15 2023-12-15 3 2 48 54