De Fermat : Jurnal Pendidikan Matematika http://jurnal.pmat.uniba-bpn.ac.id/index.php/DEFERMAT <p>de Fermat: Jurnal Pendidikan Matematika by Department of Mathematics Education, Faculty of Teacher Training and Education, Balikpapan University, which is published twice a year in June and December. It contains articles of research or study of mathematics learning, educational studies, mathematics learning models, instructional media, development of mathematics teaching materials. Articles are written in Indonesian.</p> <p>e-ISSN :&nbsp;<a href="http://u.lipi.go.id/1525493723" target="_blank" rel="noopener">2621-7309</a></p> <p>p-ISSN : <a href="http://u.lipi.go.id/1528082604" target="_blank" rel="noopener">2621-6078</a></p> <p>&nbsp;</p> en-US tri.hariyati.nis@uniba-bpn.ac.id (Tri Hariyati Nur Indah Sari) ganjar.susilo@uniba-bpn.ac.id (Ganjar Susilo) Wed, 30 Jun 2021 22:12:02 +0000 OJS 3.2.1.4 http://blogs.law.harvard.edu/tech/rss 60 A REVIEW OF STUDENT ERROR ANALYSIS IN LINEAR ALGEBRA COURSE BASED ON KASTOLAN STAGE MODEL http://jurnal.pmat.uniba-bpn.ac.id/index.php/DEFERMAT/article/view/147 <p><em>Studies that highlight the scope of mathematics learning still become continuous discussion topics. Numerous findings have the potential to be a discussion for further research. In mathematics learning, there are many problems in the form of mathematical errors made by learners in solving problems. This descriptive qualitative research aims to review mathematical errors made by students in Linear Algebra courses. Error analysis model using Kastolan stages that focus on 3 types of errors namely conceptual, procedural, and technical errors. A total of 30 students of Mathematics Education study program from Pelita Harapan University were given question to analyze their mistakes. Data analysis was performed using Miles and Huberman technique which included data collection, data presentation, and conclusion. The results showed that as many as 50% of students underwent conceptual errors, 20% of students underwent procedural errors, 3.33% of students underwent technical errors, and 26.67% of students underwent no errors. These findings provide an opportunity for researchers to analyze other mathematical learning with Kastolan stages as well as encourage researchers to develop learning models to minimize mathematical errors made by students.</em></p> Robert Harry Soesanto Copyright (c) 2021 De Fermat : Jurnal Pendidikan Matematika http://jurnal.pmat.uniba-bpn.ac.id/index.php/DEFERMAT/article/view/147 Wed, 30 Jun 2021 00:00:00 +0000 Development of Android-Based Learning Media on Sine and Cosine Rules Material as an Independent Practice http://jurnal.pmat.uniba-bpn.ac.id/index.php/DEFERMAT/article/view/162 <p><em>The purpose of this research is to develop Android-based learning media on the material of the Sinus and Cosine rules material as an independent practice that valid, effective and practical. The development model used in this research is the Borg and Gall development model. Data collection technique was carried out using a questionnaire sheet. Data collection instrument use validation sheets for media experts and material experts, student questionnaire sheets, and doing exercises on learning media. Data analysis technique in this research is quantitative and qualitative descriptive. The development media had a practice questions and games that contain random numbers. The results of the validation by media experts is 3.53 with a valid category. While the results of the validation by material experts is 3.34 with a fairly valid category. The results of the effectiveness test were obtained from the research subjects of 6 people that the results is 83.33% in the effective category. The practicality test results were obtained from a questionnaire of research subjects is 90% meets a very good criteria. It can be concluded that the Android-based learning media on the Sine and Cosine Rules material as an independent practice is valid, effective and practical.</em></p> Gerin Sukma Tahara Copyright (c) 2021 De Fermat : Jurnal Pendidikan Matematika http://jurnal.pmat.uniba-bpn.ac.id/index.php/DEFERMAT/article/view/162 Wed, 30 Jun 2021 00:00:00 +0000 PENDIDIKAN MATEMATIKA REALISTIK BERBASIS BUDAYA DALAM PEMBENTUKAN KARAKTER http://jurnal.pmat.uniba-bpn.ac.id/index.php/DEFERMAT/article/view/178 <p><em>Moral degradation of the younger generation becomes a problem for the nation, generation is the next milestone of the nation. It needs a strategy in solving this problem, one of which is the planting of character as early as possible in both primary and secondary education. Research using a realistic mathematical approach based on culture is expected to develop the character of learners. Madura traditional culture through traditional houses becomes a source of mathematics learning not only emphasizes cognitive aspects but the introduction of local culture by instilling character values. This type of descriptive quantitative research begins with interviews and documentation followed by data retrieval in the form of statistical figures using question tests and observations in students. The results showed that 85.3% of students completed their studies. Realistic mathematics makes it easier for students to understand the material by contexting real conditions, especially in traditional house buildings.</em></p> Junaidi Fery Efendi Copyright (c) 2021 De Fermat : Jurnal Pendidikan Matematika http://jurnal.pmat.uniba-bpn.ac.id/index.php/DEFERMAT/article/view/178 Wed, 30 Jun 2021 00:00:00 +0000 ANALISIS KEMAMPUAN PEMECAHAN MASALAH MATEMATIS PADA MATERI SPLTV DITINJAU DARI MULTIPLE INTELLIGENCES PESERTA DIDIK KELAS X MIPA SMAS DIPONEGORO TUMPANG TAHUN PELAJARAN 2020/2021 http://jurnal.pmat.uniba-bpn.ac.id/index.php/DEFERMAT/article/view/118 <p>This study aims to describe the ability of mathematical problem solving in the SPLTV material in terms of multiple intelligence of class X MIPA students at SMAS Diponegoro Tumpang in the 2020/2021 academic year. The research method used in this research is descriptive qualitative. The subjects of this study were 6 students who were selected through the results of the multiple intelligence questionnaire, including 2 students who had mathematical logical intelligence, 2 students with intrapersonal intelligence, and 2 students with interpersonal intelligence. The techniques of data collection used in this study were multiple intelligence tests, mathematical problem solving tests, and interviews. Dominant research subjects with logical-mathematical intelligence have better skills in solving mathematical problems than other types of intelligence in solving mathematical problems&nbsp; and can practice concepts the concept &nbsp;algorithmically and present concepts in various mathematical representations. It is very important for educators to know and understand what kind of intelligences that students have. It is intended as a material for making lesson plans. So that the learning process can run smoothly, effectively, efficiently, and not only result-oriented.</p> Nurul Mahfiroh Copyright (c) 2021 De Fermat : Jurnal Pendidikan Matematika http://jurnal.pmat.uniba-bpn.ac.id/index.php/DEFERMAT/article/view/118 Wed, 30 Jun 2021 00:00:00 +0000 PANDEMIC CHALLENGE: EVALUATION OF ONLINE LEARNING USING IMPORTANCE PERFORMANCE ANALYSIS (IPA) http://jurnal.pmat.uniba-bpn.ac.id/index.php/DEFERMAT/article/view/159 <p><em>Learning mathematics online is a challenge for teachers considering that mathematics has abstract characteristics.</em> <em>Therefore, online learning needs to be designed to be effective.</em> <em>This study aims to evaluate online learning in the Mathematics Education Study Program using Importance Performance Analysis (IPA).</em> <em>Sampling was carried out using random sampling techniques in each batch of students of the Mathematics Education Study Program, PGRI Mahadewa University, Indonesia.</em> <em>Based on the results of the analysis and discussion, it was found that online lectures had gone according to student expectations.</em> <em>This is shown from the results of the IPA, namely that most of the indicators are in Quadrant I with the label "Keep Up the Good Work".</em></p> Ni Kadek RIni Purwati, Ni Ketut Erawati Copyright (c) 2021 De Fermat : Jurnal Pendidikan Matematika http://jurnal.pmat.uniba-bpn.ac.id/index.php/DEFERMAT/article/view/159 Wed, 30 Jun 2021 00:00:00 +0000 PENINGKATAN HASIL BELAJAR MATEMATIKA SISWA MENGGUNAKAN DISCOVERY LEARNING DI KELAS XI IPS2 SMA NEGERI 3 SAMARINDA http://jurnal.pmat.uniba-bpn.ac.id/index.php/DEFERMAT/article/view/176 <p><em>This classroom action research aims to improve the mathematics learning outcomes of class XI IPS2 students at SMA Negeri 3 Samarinda through Discovery Learning on mathematical induction materials, linear and matrix programs, and was carried out in August – September 2019 with 36 students as research subjects and research objects. is learning Discovery Learning. The instruments used are assignments, end-of-cycle tests and observations. Assignments consist of group and individual assignments. The test is carried out at the end of each cycle. Observations were carried out at each meeting and during the learning process. The test questions in each cycle are in the form of descriptions. Data analysis using descriptive statistics. The implementer of the lesson is a mathematics teacher at SMA Negeri 3 Samarinda, the observer is a researcher. The results of data analysis showed an increase in the average value at the end of each cycle. The final value of the cycle is obtained from the value of group and individual assignments, as well as the test scores of each cycle. In the first cycle the basic value was 51.1 and the final value was 55.5 with an increase of 4.4. In the second cycle the basic value is 55.5 and the final value is 68.3 with an increase of 12.8. In the third cycle, the basic score was 68.3 and the final grade was 78.3 with an increase of 10. The conclusion was that through Discovery Learning, the mathematics learning outcomes of XI2 grade students of SMA Negeri 3 Samarinda increased.</em></p> Suriaty Copyright (c) 2021 De Fermat : Jurnal Pendidikan Matematika http://jurnal.pmat.uniba-bpn.ac.id/index.php/DEFERMAT/article/view/176 Wed, 30 Jun 2021 00:00:00 +0000 PEMANFAATAN FITUR BREAKOUT ROOM ZOOM UNTUK MENDUKUNG MODEL PEMBELAJARAN KOOPERATIF DI MASA PANDEMI COVID-19 http://jurnal.pmat.uniba-bpn.ac.id/index.php/DEFERMAT/article/view/185 <p><em>The online learning policy during the COVID-19 pandemic presents its challenges in implementing the cooperative learning model in schools. This study describes the use of the breakout room zoom feature in the cooperative learning model, especially Student Facilitator and Explaining (SFE) and the Number Head Together (NHT) types. This research is a qualitative descriptive study. The data sources of this research are two students who carry out teaching practice in schools. Data were collected using observation and documentation. The results of data analysis show that the implementation of the SFE and NHT cooperative learning models by utilizing the breakout room feature is very good. In addition, the effectiveness of the SFE and NHT cooperative learning models by utilizing the breakout room feature is included in the very effective and effective criteria.</em></p> Suci Yuniarti Copyright (c) 2021 De Fermat : Jurnal Pendidikan Matematika http://jurnal.pmat.uniba-bpn.ac.id/index.php/DEFERMAT/article/view/185 Wed, 30 Jun 2021 00:00:00 +0000 Development student workbook with RME approach to student creativity and collaboration skill http://jurnal.pmat.uniba-bpn.ac.id/index.php/DEFERMAT/article/view/89 <p><em>The importance of creative thinking and collaboration so that &nbsp;every learning process must be able to develo those abilities. But students’ interest in math is so low that it’s hard to develop those abilities. One cause is lack of teaching material that can show students that math exists in their daily lives. The purpose of this research is developing and producing student workbook with Realistic Mathematic Education approach to student creative thinking and collaboration valid. Developing model that used in this research is ADDIE (Analysis, Design, Development, Implementation and Evaluation). The questionnaire tests of validity. Validity test result by validators was avowed very valid with percentage 90,1%. The result showed that student mathematic workbook with RME approach was valid and facilitating student creative thinking and collaboration</em>.</p> Puji Anggraeni, Aritsya Imswatama, Yanti Mulyanti Copyright (c) 2021 De Fermat : Jurnal Pendidikan Matematika http://jurnal.pmat.uniba-bpn.ac.id/index.php/DEFERMAT/article/view/89 Wed, 30 Jun 2021 00:00:00 +0000 EFEKTIVITAS PEMBELAJARAN MATEMATIKA MENGGUNAKAN MODEL PEMBELAJARAN MISSOURI MATEMATICS PROJECT (MMP) DENGAN METODE TALKING STICK DAN PENEMUAN TERBIMBING http://jurnal.pmat.uniba-bpn.ac.id/index.php/DEFERMAT/article/view/161 <p><em>This research is an experimental study with the aim of knowing the effectiveness of the application of the Missouri Mathematics Project (MMP) learning model using the talking stick method and guided discovery. The hypothesis in this study is that the students' mathematics learning outcomes using the Missouri Mathematics Project (MMP) learning method using the talking stick method and guided discovery are more effective than conventional learning models in Class VIII students of SMP Negeri 1 Kolaka. The population in this study were all students of class VIII with a total of 275 people. Sampling was done by random cluster so that selected sample is 2 classes, namely VIII<sub>A</sub> and VIII<sub>C</sub>. Data were collected by means of learning outcomes tests. The results of inferential research using the t-test have obtained a significant value = 0.036 &lt;α = 0.05, indicating that H0 is rejected and H1 is accepted. This inferential means that there is a significant difference between the mathematics learning outcomes of students taught by the Missouri Mathematics Project (MMP) learning model with the talking stick method and guided discovery and conventional learning models in Class VIII students of SMP Negeri 1 Kolaka. From the results of these studies, it can be concluded that the mathematics learning outcomes of students with the application of the Missouri Mathematics Project (MMP) learning model with the talking stick method and guided discovery are more effective than the conventional learning model in Class VIII students of SMP Negeri 1 Kolaka.</em></p> supratman 89 Ellang, La Ode Sirad Copyright (c) 2021 De Fermat : Jurnal Pendidikan Matematika http://jurnal.pmat.uniba-bpn.ac.id/index.php/DEFERMAT/article/view/161 Wed, 30 Jun 2021 00:00:00 +0000 MEDIA PEMBELAJARAN BERBASIS VIDEO MENGGUNAKAN POWTOON DAN MOVAVI VIDEO EDITOR TERHADAP KEMAMPUAN BERPIKIR KRITIS SISWA http://jurnal.pmat.uniba-bpn.ac.id/index.php/DEFERMAT/article/view/87 <p><em>Math learning has a finite amount of space and time. Where a junior high school math class in one grade is only a five-hour lesson with an hour lesson of only 40 menutes is considered insufficient. Apart from the lack of time for learning, there are a number of factors that are a barrier to math study, which is the influence of internal and external factor. On external factor such as the impact of the ingredients. Using a textbook is not enough for students to understand math lesson. For this reason research are trying to develop video-based teaching materials in hopes of overcoming space and time on learning. The learning video countains material discussions, examples of problems, discussion of examples problems, it’s been valeted by a material expert, so that the teaching materials developed by researchers can direct students to critical thinking. With the learning video, it is expected that students can learn anywhere and any time without the countraining of spcace and time. And the ultimate purpose of this video-based teaching development is to increase students critical thinking ability.</em></p> Nina Mirawati, Pujia Siti Balkist, Ana Setiani Copyright (c) 2021 De Fermat : Jurnal Pendidikan Matematika http://jurnal.pmat.uniba-bpn.ac.id/index.php/DEFERMAT/article/view/87 Wed, 30 Jun 2021 00:00:00 +0000