Union: Jurnal Ilmiah Pendidikan Matematika
Union: Jurnal Ilmiah Pendidikan Matematika is a peer-reviewed open access journal published three times in a year (March, July, and November). Union: Jurnal Ilmiah Pendidikan Matematika provides a forum for lecturers, academicians, researchers, practitioners, and students to deliver and share knowledge in the form of empirical and theoretical research articles. The scope of Union is Mathematics Education which includes, but is not limited to the following topics: Mathematics Ability, Mathematics Learning Model, Mathematics Learning Media, Curriculum Development, Assessment and Evaluation, Didactical Design Research (DDR), Realistic Mathematics Education (RME), Ethnomathematics, Research and Development (RnD), PISA Task.
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<![CDATA[Pengaruh Media Pembelajaran Flash Card Math Terhadap Hasil Belajar Matematika Materi Himpunan Kelas VII ]]>
<![CDATA[Muslimin Muslimin]]>;
<![CDATA[Muslimin Tendri]]>;
<![CDATA[Ichwatun Khasanah]]>
<![CDATA[ UNION : Jurnal Ilmiah Pendidikan Matematika Vol 9 No 1 (2021) ]]>
Publisher : <![CDATA[Universitas Sarjanawiyata Tamansiswa ]]>
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DOI: 10.30738/union.v9i1.6289
<![CDATA[The purpose of this study was "to find out whether or not there was an effect of the Flash Card Math on the results of learning mathematics in the material set of class VII Palembang State Middle School 7". The subject studied, the seventh-grade students of Palembang State Middle School 7. This type of research is an experiment. Outcomes of students who take part in learning without using the Flash Card Math are 73.13 with 29 students. There is a difference in the average value of mathematics learning outcomes of students using Flash Card Math and the average value of mathematics learning outcomes of students without using Flash Card Math in class VII Palembang Palembang State Middle School 7. The average value of the experimental class is better than the average value of the control class. Based on the analysis of the results of t-test calculations obtained t count = 4.311 for ∝ = 5% and DK = 59 obtained t table = 2.001, this means t count > t table so that H0 is rejected and H1 is accepted. Thus it can be concluded that "there is the influence of Flash Card Math on the mathematics learning outcomes in the set material in class VII Palembang 7 Public Middle School".]]>
<![CDATA[Pengaruh Model Pembelajaran Creative Problem Solving terhadap Kemampuan Pemecahan Masalah Matematis Siswa ]]>
<![CDATA[Kadek Ana Lestari]]>;
<![CDATA[Andinasari Andinasari]]>;
<![CDATA[Dina Octaria]]>
<![CDATA[ UNION : Jurnal Ilmiah Pendidikan Matematika Vol 9 No 1 (2021) ]]>
Publisher : <![CDATA[Universitas Sarjanawiyata Tamansiswa ]]>
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DOI: 10.30738/union.v9i1.6468
<![CDATA[The purpose of this study was to determine the effect of the Creative Problem Solving (CPS) learning model on students' mathematical problem solving abilities at SMA Negeri 8 Palembang. This research method is a Quasi-experimental method with a Posttest-Only Control Design research design. The subjects in this study were students of class XI MIA 1 and XI MIA 2, SMA Negeri 8 Palembang, totaling 64 students. The instrument used in this study was a test of problem solving ability. Analysis of the data used in this study is the t test. The results showed that there was a positive influence on the application of the Creative Problem Solving (CPS) learning model to students' mathematical problem solving abilities.]]>
<![CDATA[Hubungan antara Motivasi Kemandirian Belajar dan Persepsi Siswa terhadap Matematika dengan Prestasi Belajar Siswa SMK ]]>
<![CDATA[Ririn Sri Lestari]]>;
<![CDATA[Agustina Sri Purnami]]>;
<![CDATA[Tri Astuti Arigiyati]]>
<![CDATA[ UNION : Jurnal Ilmiah Pendidikan Matematika Vol 9 No 1 (2021) ]]>
Publisher : <![CDATA[Universitas Sarjanawiyata Tamansiswa ]]>
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DOI: 10.30738/union.v9i1.7965
<![CDATA[This research aims to determine the relation between motivation, learning independence and students’ perception of mathematics with the learning achievements of grade X of Vocational High School in Umbulharjo district both jointly and independently. The study was conducted at Vocational School in Umbulharjo district using the ex post facto method. A sample of 122 was taken by cluster random sampling. Data collection using questionnaire and test techniques. data analysis techniques used multiple linear regression analysis. The result of the study showed that there was a positive and significant relationship between motivation, learning independence and students’ perception of mathematics with students’ achievement both jointly and independently. This can be seen from the sig value of each motivational variable by 0.005 < 0.05, learning independence by 0.000 < 0.05 and students’ perception of mathematics by 0.002 < 0.05.]]>
<![CDATA[Upaya Meningkatkan Keaktifan dan Hasil Belajar Matematika Siswa melalui Pembelajaran Student Team Achievement Divisions ]]>
<![CDATA[Okta Hidayanti]]>;
<![CDATA[Benedictus Kusmanto]]>;
<![CDATA[Esti Harini]]>
<![CDATA[ UNION : Jurnal Ilmiah Pendidikan Matematika Vol 9 No 1 (2021) ]]>
Publisher : <![CDATA[Universitas Sarjanawiyata Tamansiswa ]]>
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DOI: 10.30738/union.v9i1.7966
<![CDATA[This study aims to describe the process of applying the Student Team Achievement Divisions (STAD) cooperative learning model as an effort to improve the activeness and learning outcomes of students in class VIII B, SMP N 3 Banguntapan. This type of research is Classroom Action Research which consists of two cycles, each of which consists of 4 stages, namely (1) planning, (2) action, (3) observation, and (4) reflection. The subjects of this study were students of class VIII B, SMP N 3 Banguntapan, with a total of 30 students. Data collection techniques used were observation techniques, documentation techniques, and test techniques. The results showed an increase in each indicator of student activity. In the first cycle, the value of the percentage of student activity 57.916% increased in the second cycle to 79.578%. While the average student mathematics learning outcomes increased from 44.83 in the pre cycle to 70.6 in the first cycle then the second cycle increased to 79.4.]]>
<![CDATA[Problematika Pembelajaran Daring Pelajaran Matematika di SMAN 1 Pejagoan Kabupaten Kebumen ]]>
<![CDATA[Nurul Izza Kamila]]>;
<![CDATA[Fadhilah Rahmawati]]>;
<![CDATA[Selvi Yulia Wisudawati]]>;
<![CDATA[Hanik Umi Khulasoh]]>;
<![CDATA[Ani Kurnia Lestari]]>;
<![CDATA[Sandri Yulia Rahma]]>
<![CDATA[ UNION : Jurnal Ilmiah Pendidikan Matematika Vol 9 No 1 (2021) ]]>
Publisher : <![CDATA[Universitas Sarjanawiyata Tamansiswa ]]>
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DOI: 10.30738/union.v9i1.8894
<![CDATA[The purpose of this study was to find out what problems students faced in learning mathematics online during the Covid-19 pandemic. This type of research is qualitative research. The subjects of this study were students of class XII SMAN 1 Pejagoan. The data collection instrument used was a questionnaire or electronic questionnaire in the form of Google form. The Google form measurement scale used is a Likert scale consisting of Strongly Agree (SS), Agree (S), Disagree (TS), Strongly Disagree (STS). Samples were taken randomly, in order to get 60 respondents.]]>
<![CDATA[Microteaching dalam Jaringan berbasis Lesson Study dan Keterampilan Penyusunan Authentic Assessment Matematika berorientasi HOTS ]]>
<![CDATA[Erika Laras Astutiningtyas]]>;
<![CDATA[Andhika Ayu Wulandari]]>;
<![CDATA[Isna Farahsanti]]>;
<![CDATA[Annisa Prima Exacta]]>
<![CDATA[ UNION : Jurnal Ilmiah Pendidikan Matematika Vol 9 No 1 (2021) ]]>
Publisher : <![CDATA[Universitas Sarjanawiyata Tamansiswa ]]>
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DOI: 10.30738/union.v9i1.9136
<![CDATA[The objectives of this study were to describe the implementation of microteaching in an online Lesson Study and to find out the percentage of improvement in skills in making Authentic Assessment with Higher Order Thinking Skills (HOTS) oriented through online Microteaching based on Lesson Study. This type of research is a descriptive exploratory study with a qualitative approach. The platforms used for online Microteaching courses are: Zoom, Moodle, YouTube, and the WhatsApp application. The instruments used in this study were: (1) an observation sheet on the implementation of the Lesson Study; (2) HOTS-oriented Authentic Assessment Sheet. The results of this study are: (1) The stages of Microteaching implementation in an online Lesson Study are as follows. (a) Preparation stage with the formation of a Team, (b) Implementation Phase, which includes plans, do, and see carried out online (c) Evaluation stage of activities. (2) The increase in the mean score of HOTS-oriented Authentic Assessment from Open Lesson I to Open Lesson III is 25.49%. The score category, which was in passable level, became good.]]>
<![CDATA[Pengembangan Media Pembelajaran PERMUTASI (Permainan Ular Tangga Berbasis Materi) Matematika SMP Kelas VIII ]]>
<![CDATA[Bryan Pudji Hartono]]>;
<![CDATA[Bayu Bagus Riyandiarto]]>
<![CDATA[ UNION : Jurnal Ilmiah Pendidikan Matematika Vol 9 No 1 (2021) ]]>
Publisher : <![CDATA[Universitas Sarjanawiyata Tamansiswa ]]>
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DOI: 10.30738/union.v9i1.9195
<![CDATA[Innovative learning media is needed in order to attract students in learning mathematics. The purpose of this research was to develop and to know its feasibility a learning media of snakes and ladder games based on mathematical materials. The method was Research and Development (R&D). The development was carried out using a 4-D development model. After conducting teacher, student and literature analysis, researchers performed product which then reviewed and validated by material and evaluation experts. The results of product design assessments by experts has been qualified in the "excellent" criteria. After revised, design was produced and then given to the teacher to be tested to the students. The results of product assessments by teachers and students also stated that the product included in the "excellent" criteria. Based on that assessments, the product has been qualified in the "excellent" criteria which means that this product are deserves to be used as an innovation for further math learning.]]>
<![CDATA[Kesalahan Penyelesaian Soal Geometri Transformasi Berdasarkan Gaya Belajar: Studi Kasus Mahasiswa Calon Guru Matematika ]]>
<![CDATA[Eko Sugandi]]>
<![CDATA[ UNION : Jurnal Ilmiah Pendidikan Matematika Vol 9 No 1 (2021) ]]>
Publisher : <![CDATA[Universitas Sarjanawiyata Tamansiswa ]]>
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DOI: 10.30738/union.v9i1.9293
<![CDATA[The diversity of student characteristics is one factor in the difference in errors in solving transformation geometry problems. This research was conducted with the aim of identifying the types of errors in solving geometric transformation problems made by prospective mathematics students based on their learning styles. The errors investigated were based on the criteria of the Kastolan procedure which consisted of conceptual errors, procedural errors and technical errors. The research method used is a qualitative method. The subjects used in the study consisted of three students with the most errors for each category of learning style. The data collection technique was performed using test and interview instruments. The results of the study showed that there were two types of errors made by student teachers with visual learning styles, namely conceptual errors and procedural errors. Prospective teachers with auditory learning styles have three types of errors, namely conceptual errors, procedural errors, and technical errors. Prospective student teachers with kinesthetic learning styles have two types of errors, namely conceptual errors and procedural errors. Based on the research results, it is recommended that additional research be conducted to identify the factors behind the similarity of the types of errors made by candidate student teachers with visual learning styles and styles. kinesthetic learning.]]>
<![CDATA[Peningkatan Hasil Belajar melalui Model Problem Based Learning Materi Trigonometri Kelas X Tata Busana ]]>
<![CDATA[Nur Hamidah]]>
<![CDATA[ UNION : Jurnal Ilmiah Pendidikan Matematika Vol 9 No 1 (2021) ]]>
Publisher : <![CDATA[Universitas Sarjanawiyata Tamansiswa ]]>
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DOI: 10.30738/union.v9i1.9364
<![CDATA[This research is a Classroom Action Research. The research subjects were students of class X Fashion Design 2 SMK Negeri 2 Temanggung in 2019/2020, totaling 36 students consisting of 36 female students and 0 male students. The instruments used in this study were test instruments and non-test instruments. The non-test instruments consist of observation sheets, field notes and documentation. The data collection technique was done by using test techniques and non-test techniques. Analysis and data processing using quantitative techniques and qualitative techniques. The research was carried out in two cycles with each cycle consisting of four stages, namely planning, action, observation and reflection. The average individual test score increased from 61.53 in cycle 1 to 88.15 in cycle 2. Completeness of classical learning also increased by 66.7% from 33.3% to 100%. The research results have been able to answer the problem formulation, achieve research objectives and prove the research hypothesis, namely the use of Problem Based Learning can improve learning outcomes on Trigonometry material.]]>
<![CDATA[Pengembangan YouTube Sebagai Bahan Belajar Mandiri pada Subjek Pertidaksamaan Linear Satu Variabel Tingkat SMP ]]>
<![CDATA[Cici Naftalie Alleztin Pambudi]]>;
<![CDATA[I Nyoman Arcana]]>;
<![CDATA[Zainnur Wijayanto]]>
<![CDATA[ UNION : Jurnal Ilmiah Pendidikan Matematika Vol 9 No 1 (2021) ]]>
Publisher : <![CDATA[Universitas Sarjanawiyata Tamansiswa ]]>
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DOI: 10.30738/union.v9i1.9494
<![CDATA[This study aims to develop YouTube in the form of video as independent study material on one variabel linear inequality and determine its feasibility. The method used in this research is a research and development method with the ADDIE development model through 5 stages, namely Analysis, Design, Development, Implementation, and Evaluation. The research was conducted at SMP Negeri 2 Pandak with 26 students as the subject of class VII E. Data collection techniques used student response questionnaires and learning outcomes tests. The result of this research is a mathematics learning video product that is presented through YouTube under the account name "Cinta Matematika Kuy". Assessments from media experts and material experts show that the development of YouTube as an independent learning material falls into the very valid category with an average value of 4.57. The results of the correlation between the student response questionnaire and the learning outcome test also showed a very strong relationship. Thus, the YouTube video developed was feasible to use.]]>
