JMEA : Journal of Mathematics Education and Application
https://jurnal.umsu.ac.id/index.php/mtika
<p style="width: 750px;" align="justify"><strong>Journal of Mathematics Education and Application: JMEA</strong>, diterbitkan oleh Program Studi Magister Ilmu Pendidikan Matematika Pascasarjana Universitas Muhammadiyah Sumatera Utara (UMSU)Terbit pada bulan Februari, Juni dan Oktober setiap tahun.</p><p style="width: 750px;" align="justify"><strong>Journal of Mathematics Education and Application:<strong>JMEA</strong></strong>menerima artikel dan mempublikasikan hasil kajian/penelitian ilmiah tentang Pendidikan dan Aplikasi Matematika dan yang berkaitan. Penyebarluasan penelitian bertujuan untuk membangun peradaban bangsa serta mengembangkan Ilmu Pendidikan dan Aplikasi Matematikadan teknologi dalam meningkatkan sumber daya manusia.</p><p style="width: 750px;" align="justify"><strong>Focus & Scope</strong></p>1. Learning Media for Mathematics Education<br />2. Mathematics Education Curriculum Development<br />3. Development of Mathematics Education Teaching Materials<br />4. Research and Teaching Mathematics Education<br />5. Application of Mathematics Applications<br />6. Applications of Mathematics Science<p>ISSN<a href="https://issn.lipi.go.id/terbit/detail/20220312511257801" target="_blank">2829-1514</a> (online)</p>en-USJMEA : Journal of Mathematics Education and Application2829-1514Utilization of ‘Counting Box’ Media in Addition and Subtraction Word Problems for First Grade Elementary School Students
https://jurnal.umsu.ac.id/index.php/mtika/article/view/18617
<p class="9Paragraph">This research aims to describe the effect of using counting box media in addition and subtraction story questions on the ability to understand concepts in grade 1 students at UPT SD Negeri 29 Gresik and the obstacles to its use. This study used descriptive qualitative method. Data collection in this research was carried out by interviews with class teachers and class 1 students, observations, concept understanding tests and also documentation. The data was analyzed in 3 stages, namely data reduction, data presentation and drawing conclusions. Testing the validity of the researcher's data uses technical triangulation and source triangulation. The results of this research show that the use of counting box media can have a positive effect on grade 1 elementary school students. The effect can be seen from the results of students' ability tests which have increased compared to before using the counting box media, students' enthusiasm becomes high when learning mathematics using the counting box media. This media also makes it easier for students to solve story problems on addition and subtraction of numbers 1-10. However, there were 2 obstacles experienced by students when using counting box media, including the container for holding objects that was not large enough, the cartoon image used as a marker of the subject's identity in the questions was vulnerable to falling off the glass.</p>Riris SeptiaArissona Dia Indah SariAfakhrul Masub Bakhtiar
Copyright (c) 2024 JMEA : Journal of Mathematics Education and Application
2024-02-292024-02-293111210.30596/jmea.v3i1.18617Characteristics of Computational Thinking in Solving Mathematical Problems based on Kolb's Learning Style
https://jurnal.umsu.ac.id/index.php/mtika/article/view/18855
<p>The approach in this research is qualitative research with an exploratory descriptive research type. The subjects in this research were several students from the Mathematics Tadris study program, Faculty of Tarbiyah and Teacher Training, UIN Sayyid Ali Rahmatullah Tulungagung semester 5 who met the subject selection requirements. This research uses two types of instruments, namely researchers as the main instrument and supporting instruments which include questionnaires and tests. Based on the results of research and discussion about students' computational thinking processes in solving mathematical problems based on learning styles, namely (1) students' computational thinking processes in solving mathematical problems based on divergent learning styles start from the decomposition stage, algorithmic stage, decomposition stage, generalization stage, debugging stage, abstraction stage, and decomposition stage. Where the stages of computational thinking include incoherent, complete and systematic; (2) Students' computational thinking processes in solving mathematical problems based on the assimilation learning style start from the decomposition stage, abstraction stage, algorithmic stage, debugging stage, generalization stage, abstraction stage, and decomposition stage. Where the stages of computational thinking include incoherent, complete and unsystematic; (3) Students' computational thinking processes in solving mathematical problems based on the convergent learning style start from the decomposition stage, abstraction stage, algorithmic stage, debugging stage, generalization stage, algorithmic stage, abstraction stage, and decomposition stage. Where the stages of computational thinking include coherent, complete and systematic; and (4) Students' computational thinking processes in solving mathematical problems based on accommodation learning styles start from the decomposition stage, abstraction stage, generalization stage, algorithmic stage, and debugging stage. Where the stages of computational thinking are coherent, complete and systematic.</p>Miswanto Miswanto
Copyright (c) 2024 JMEA : Journal of Mathematics Education and Application
2024-02-292024-02-2931132410.30596/jmea.v3i1.18855Calculations Using Rubu' Mujayyab to Determine the Beginning of Maghrib and Isha Times
https://jurnal.umsu.ac.id/index.php/mtika/article/view/18857
<p>In determining the start of prayer times, in this case the Maghrib and Isha prayer times, there are several methods that can be used, one of which is using instruments. Apart from calculators and computers, the astronomical instrument that can be used is the Rubu' Mujayyab, which functions as an angle calculating tool. Rubu' Mujayyab is a tool in the shape of a quarter circle which is used to calculate geometric functions which are very useful for projecting the circulation of celestial bodies on a vertical circle. The research methods used are experimentation and direct testing. The results of this research show that Rubu' Al-Mujayyab can calculate prayer times, especially Maghrib and Isha times, using the steps described and the results are close to current modern calculations.</p>Muhammad HidayatAlfath KhairMuhammad Alya Fathi
Copyright (c) 2024 JMEA : Journal of Mathematics Education and Application
2024-02-292024-02-2931253010.30596/jmea.v3i1.18857The Influence of MPSAS Values and SQM Angles in Determining Fajr Time in a Mathematical Review
https://jurnal.umsu.ac.id/index.php/mtika/article/view/18859
<p>In Indonesia, a dip of -20 degrees has been adopted for dawn, which so far has no known scientific reference and indicates that dawn in Indonesia is too early. The results of this research show that the MPSAS value and SQM angle have an influence in determining the time of dawn so that several considerations that can be made in researching the time of dawn using SQM include paying attention to the MPSAS value of a place, the direction of the SQM angle, moonlight, weather, calibration of the SQM tool, data processing methods. etc. Research at Pondok Permai beach shows changes in sky brightness, namely at a sun depth of 15 degrees and research at Sri Mersing beach at 14 degrees. There are differences in the value of changes in sky brightness in SQM which lead to different observation angles, if it is a sunny day the difference is around 0.25-0.75 degrees, whereas if it is a cloudy day the change in the graph at each angle does not remain at an angle of 0 degrees. From the results of the research carried out, there is more often interference in the form of clouds.</p>Rasta Kurniawati Br PinemMuhammad HidayatFadhilla Sayu Ananda
Copyright (c) 2024 JMEA : Journal of Mathematics Education and Application
2024-02-292024-02-2931313810.30596/jmea.v3i1.18859Application of the Discovery Learning Modelto Increase Communication Skills Mathematics of Class X IPA-6 Students
https://jurnal.umsu.ac.id/index.php/mtika/article/view/18860
<p class="9Paragraph">This research aims to improve students' mathematical communication skills through the application of the <em>Discovery Learning </em>learning model in Trigonometry material in class X SMA Negeri 11 Medan . This type of research is classroom action research. The subjects of this research were class X IPA-6 students SMA Negeri 11 Medan, totaling 32 people. The object of this research is students' mathematical communication skills by applying the <em>discovery </em>learning model to trigonometry material.Based on data analysis, students' mathematical communication abilities in cycle I were obtained 18 students (56.25%) out of 32 students have achieved learning completion (). After action II, through administering the Mathematics Communication Skills Test II, 27 students (84.375 %) of the 32 students had achieved learning completion (). There was an increase in the percentage of classical completion by 28.125%. Based on the classical completeness criteria, this completeness percentage is fulfilled. The average score of the mathematics communication skills test results in cycle I was 69.88 and in cycle II it increased to 83.16. The increase in average value was 13.28 with a Gain Score of 0.44 which was in the medium category. Based on the descriptions above, it can be concluded that students' mathematical communication improves by applying the <em>discovery learning </em>model to Trigonometry material in class X IPA-6 at SMA Negeri 11 Medan.</p>Miftahul Rizka Nasution
Copyright (c) 2024 JMEA : Journal of Mathematics Education and Application
2024-02-292024-02-2931394610.30596/jmea.v3i1.18860