Articles
<![CDATA[Implementasi Desain Pembelajaran Matematika melalui Pendekatan Problem Posing untuk Meningkatkan Kemampuan Penalaran Siswa ]]>
<![CDATA[Famella, Ajeng]]>;
<![CDATA[Panggabean, Ellis Mardiana]]>;
<![CDATA[Harahap, Tua Halomoan]]>
<![CDATA[ Jurnal Pendidikan Matematika Vol. 2 No. 4 (2025): August ]]>
Publisher : <![CDATA[Indonesian Journal Publisher ]]>
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DOI: 10.47134/ppm.v2i4.1943
<![CDATA[Penelitian ini bertujuan untuk mengimplementasikan desain pembelajaran matematika melalui pendekatan problem posing guna meningkatkan kemampuan penalaran siswa. Pendekatan problem posing menekankan keterlibatan siswa dalam merumuskan masalah matematika, yang diharapkan dapat merangsang pemikiran kritis dan logis. Penelitian ini menggunakan metode deskriptif kualitatif dengan desain penelitian tindakan kelas. Pengumpulan data dilakukan melalui observasi, tes, dan dokumentasi. Hasil penelitian menunjukkan bahwa penerapan pendekatan problem posing dalam pembelajaran matematika secara efektif meningkatkan kemampuan penalaran siswa, yang ditunjukkan melalui peningkatan kemampuan siswa dalam menganalisis, mengevaluasi, dan menyusun argumen matematika secara logis. Temuan ini menunjukkan bahwa integrasi pendekatan problem posing dalam desain pembelajaran dapat menciptakan lingkungan belajar yang lebih interaktif dan reflektif, serta mendukung perkembangan kognitif siswa, khususnya dalam penalaran matematika.]]>
<![CDATA[Implementasi Etnomatematika dalam Pembelajaran Matematika menggunakan Budaya Jawa Berbasis Batik ]]>
<![CDATA[Famella, Ajeng]]>;
<![CDATA[Panggabean, Ellis Mardiana]]>;
<![CDATA[Harahap, Tua Halomoan]]>
<![CDATA[ Jurnal Pendidikan Matematika Vol. 2 No. 4 (2025): August ]]>
Publisher : <![CDATA[Indonesian Journal Publisher ]]>
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DOI: 10.47134/ppm.v2i4.1944
<![CDATA[Penelitian ini bertujuan untuk mendeskripsikan implementasi etnomatematika dalam pembelajaran matematika dengan menggunakan budaya Jawa, khususnya motif batik, pada siswa tingkat SMA. Metode yang digunakan adalah studi literatur dengan pendekatan deskriptif kualitatif, mengkaji berbagai referensi ilmiah dan terpercaya yang relevan dengan teori serta model pembelajaran etnomatematika. Subjek dalam penelitian ini adalah 28 siswa SMA Islam Plus Adzkia. Hasil kajian menunjukkan bahwa integrasi unsur-unsur matematika dalam motif batik, seperti simetri, transformasi, dan pola geometri, dapat meningkatkan minat belajar, pemahaman konsep, serta memperkuat identitas budaya siswa. Selain memperkaya strategi pembelajaran, penelitian ini juga berkontribusi dalam mengharumkan nama SMA Islam Plus Adzkia sebagai lembaga pendidikan yang aktif mengembangkan inovasi pembelajaran berbasis budaya lokal.]]>
<![CDATA[Implementasi Model Project Based Learning (PjBL) pada Materi Pola Bilangan untuk Meningkatkan Pemecahan Masalah Siswa SMP Negeri 1 Pantai Cermin ]]>
<![CDATA[Sihombing, Heldon]]>;
<![CDATA[Panggabean, Ellis Mardiana]]>;
<![CDATA[Naibaho, Tutiarny]]>
<![CDATA[ Indo-MathEdu Intellectuals Journal Vol. 6 No. 5 (2025): Indo-MathEdu Intellectuals Journal ]]>
Publisher : <![CDATA[Lembaga Intelektual Muda (LIM) Maluku ]]>
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DOI: 10.54373/imeij.v6i5.4058
<![CDATA[This study aims to determine the effect of the Project Based Learning (PjBL) model on students' mathematical problem-solving abilities. This research uses a quantitative approach with a quasi-experimental method. The research sample consists of two eighth-grade classes at SMP Negeri 1 Pantai Cermin, each consisting of 30 students. Class VIII-1 serves as the experimental class treated with the PjBL model, while class VIII-2 serves as the control class using conventional methods. Data were collected through pretest and posttest, then analyzed using normality test, homogeneity test, and t-test. The test results indicate that the data is normally distributed and homogeneous. The t-test shows a significance value < 0.05, which means there is a significant difference between the two classes. The average posttest score of the experimental class (86) is higher than that of the control class (72). These results suggest that the PjBL model has a positive effect on improving students' problem-solving skills.]]>
<![CDATA[Implementasi Trigonometri Pada Tinggi Suatu Objek ]]>
<![CDATA[Aulia, Virna]]>;
<![CDATA[Aprilia, Maelani]]>;
<![CDATA[Anastasya, Wanda]]>;
<![CDATA[Mawariah, Mawariah]]>;
<![CDATA[Panggabean, Ellis Mardiana]]>
<![CDATA[ Cybernetics: Journal Educational Research and Social Studies Volume 5 Nomor 2 April 2024 ]]>
Publisher : <![CDATA[Pusdikra Publishing ]]>
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DOI: 10.51178/cjerss.v5i2.1992
<![CDATA[Trigonometry is a branch of mathematics that studies the relationships between the sides and angles of triangles. In its applications, trigonometry plays a crucial role in various fields such as physics, engineering, architecture, and navigation. One prominent application of trigonometry is in determining the height of an object. This article discusses the application of trigonometry in measuring object heights using techniques like theodolites, laser rangefinders, and drones. Trigonometry enables precise measurements by utilizing elevation angles and distances, and it plays a critical role in maintaining accuracy in construction, navigation, and surveying.]]>
<![CDATA[Implementation of Algebra Structure in The Field of Biology in Blood Group Inheritance ]]>
<![CDATA[Hastuti, Sri]]>;
<![CDATA[Panggabean, Ellis Mardiana]]>
<![CDATA[ Journal Of Education And Teaching Learning (JETL) Vol. 5 No. 3 (2023): Journal of Education and Teaching Learning (JETL) ]]>
Publisher : <![CDATA[CV. Pusdikra Mitra Jaya ]]>
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DOI: 10.51178/jetl.v5i3.1528
<![CDATA[Genetics is a branch of biology that scientifically studies heredity (heredity). One of the inherited genetic identities is blood type. The most commonly used blood group systems are the ABO and Rhesus blood group systems. This blood group inheritance can be analyzed using any antigen from the blood group system. The antigei are then used as the basis for the vector space affecting the field. Binary operations were defined for each blood group system and analyzed using gamete and zygotic algebra. We derive equations that are used as axioms to form the algebraic structure of any blood group system. After the ABO blood group and Rhesus algebra were determined, the ABO binary function was determined and supplemented with the Rhesus blood group system (ABOi Rh). This binomial operation is used to derive equations that act as axioms to form the algebraic structure of the ABO Rh blood group system.]]>
<![CDATA[Analysis of Algebra Structure Implementation Input-Output Applications in the Economic Field ]]>
<![CDATA[Kamaruddin, Kamaruddin]]>;
<![CDATA[Panggabean, Ellis Mardiana]]>;
<![CDATA[Irvan, Irvan]]>
<![CDATA[ Journal Of Education And Teaching Learning (JETL) Vol. 5 No. 3 (2023): Journal of Education and Teaching Learning (JETL) ]]>
Publisher : <![CDATA[CV. Pusdikra Mitra Jaya ]]>
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DOI: 10.51178/jetl.v5i3.1530
<![CDATA[Mathematicsi isi ai sciencei thati is usefuli ini iall fields, and is also useful in many other sciences. Mathematical models are useful, for example, in ieconomics. One of them uses matrix theory and Gauss-Jordan ielimination in iinput-output ianalysis ito studyi the inter-sectoral iinterconnectedness iof the economy. This study describes the input-output ianalysis. This isi thei implementationi ofi matrixi materiali wherei each sector usesi as inputi the output produced by the output of other sectors, on the other hand the output produced is also the input of other sectors. This research is a qualitative research (library research) with a literary approach. Data collection techniques were carried out by reviewing various books, journals, articles, information or sources deemed appropriate and relevant to the research. Content analysis is used as a data analysis technique whose purpose is to maintain research accuracy and prevent errors in data sources. This is followed by a literature review and a literature review. The results of this study are the transaction matrix, value added ratio of economic activity, technological input-output coefficient matrix, interdependence coefficient matrix and finali demandi usingi the iGauss-Jordani eliminationi method.]]>
<![CDATA[LINTASAN BELAJAR SISWA DALAM MEMAHAMI SISTEM PERSAMAAN LINIER DUA VARIABEL MELALUI PROBLEM BASED LEARNING ]]>
<![CDATA[Binti Ir Zulkarnain, Ayu Najmita]]>;
<![CDATA[Zulfah Marpaung]]>;
<![CDATA[Ellis Mardiana Panggabean]]>;
<![CDATA[Tua Halomoan Harahap]]>
<![CDATA[ An Najah (Jurnal Pendidikan Islam dan Sosial Keagamaan) Vol. 4 No. 1: Januari 2025 ]]>
Publisher : <![CDATA[Najah Bestari ]]>
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<![CDATA[This study is motivated cause many students face challenges does not understand two variable linear equation system (SPLDV), primarily due to the abstract nature of the concepts. These difficulties hinder their ability to solve real-world problems effectively. Addressing these issues requires a structured instructional approach that supports students' learning processes. This study aims to analyze the learning trajectory of students in understanding two variable linear equation system (SPLDV through a Problem-Based Learning (PBL) approach. The research identifies specific stages of student learning, including basic concept comprehension, problem modeling, problem-solving, and applying solutions to real-world contexts. Data were collected through classroom observations, analysis of instructional materials, and interviews with eighth-grade students. The findings highlight that PBL not only enhances students' engagement but also helps develop critical and analytical thinking skills. This study underscores the importance of designing problem-based instructional materials to address learning challenges and recommends further exploration of PBL applications in mathematics education. .]]>
<![CDATA[Desain Tugas Belajar pada Materi Ruang Tiga Dimensi Berdasarkan Teori Konstruktivisme ]]>
<![CDATA[Tamba, Sri Rejeki]]>;
<![CDATA[Panggabean, Ellis Mardiana]]>
<![CDATA[ Edu Cendikia: Jurnal Ilmiah Kependidikan Vol. 2 No. 03 (2022): Artikel Riset Edisi Desember 2022 ]]>
Publisher : <![CDATA[ITScience (Information Technology and Science) ]]>
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DOI: 10.47709/educendikia.v2i03.1907
<![CDATA[Teori belajar memudahkan tenaga pendidik untuk memandang pelaksanaan pembelajaran yang lebih efektif dan efisien. Desain tugas belajar berdasarkan teori konstruktivisme membantu siswa dapat membangun pengetahuannya sendiri. Penelitian ini menggunakan metode pengembangan dengan deskriptif. Hasil dari penelitian yaitu: Coba perhatikan ruangan kelasmu saat ini! Bagaimana bentuk ruangan kelas ini! Identifikasilah berdasarkan ciri-cirinya, lalu sesuaikan dengan bentuk bangun ruang yang sudah kalian pelajari sewaktu duduk dibangku SMP! Identifikasilah ukuran ruangan kelasseperti panjang dan lebarnya. Jika akan dipasang sebuah tali dari sisi kiri ke kanan tembok ruangan untuk keperluan dekorasi ruangan seperti di bawah ini, gambarlah ilustrasi bentuk ruangan ke dalam sketsa beserta sketsa tali yang akan dipasang untuk dekorasi? Berapakah panjang minimal tali yang diperlukan untuk menghubungkan titik yang akan dipakukan pada tembok kiri dan kanan ruangan? Jika jarak antara titik yang ditandai dengan paku pada tembok kiri dan kanan adalah panjang tali terpendek yang menghubungkan antara paku yang tertancap ditembok kiri dengan paku yang tertancap ditembok kanan, maka diskusikan ruas garis yang menyatakan jarak antar titik D ke titik C pada kubus dibawah ini! Simpulkanlah apa itu jarak antara titik ketitik! Kerangka berpikir dari teori Konstruktivisme dapat disusun untuk menghasilkan sebuah desain tugas yang dapat dipakai dalam sebuah pertemuan pembelajaran matematika di kelas.]]>
<![CDATA[Penerapan Pendekatan Matematika Realistik (PMR) pada Materi Trigonometri untuk Meningkatkan Pemahaman Konsep ]]>
<![CDATA[Lubis, Mindo Juliani Kelly]]>;
<![CDATA[Panggabean, Ellis Mardiana]]>;
<![CDATA[Tambunan, Hardi]]>
<![CDATA[ Indo-MathEdu Intellectuals Journal Vol. 6 No. 1 (2025): Indo-MathEdu Intellectuals Journal ]]>
Publisher : <![CDATA[Lembaga Intelektual Muda (LIM) Maluku ]]>
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DOI: 10.54373/imeij.v6i1.2743
<![CDATA[This study aims to determine the improvement of students' ability to understand mathematical concepts by using the Realistic Mathematics Approach (PMR). This study is a pseudo-experimental research with posttest only control group design. The population of this study is all students of grade XI SMK Negeri 6 Medan even semester of the 2025 school year with a total of 280 students and distributed into 8 classes. The sample of this study is class X Accounting 1 with a total of 36 students as an experimental class and class X Accounting 2 with a total of 35 students as a control class. Data were collected using tests and statistically analyzed to find out the differences between the two classes. The results of the hypothesis test with the Mann Whitney U test, it is known that the value of Z-count = 1.879 is more than Z-critical = 1.645. This shows that the median concept understanding of students who follow learning with the PMR Approach is higher than the median concept understanding that follows regular learning. The average value of students' concept understanding in the class applying the PMR approach x ̅=62 was higher than the class that followed the usual learning where x ̅=53. Thus, it can be concluded that the understanding of mathematical concepts of students who participate in learning with the PMR approach is higher than the understanding of mathematical concepts of students who follow ordinary learning]]>
<![CDATA[Desain Pembelajaran Integral Fungsi Trigonometri Berbasis Local Instruction Theory (LIT) ]]>
<![CDATA[Asriko Muhsi]]>;
<![CDATA[Hesti Asmika]]>;
<![CDATA[Ellis Mardiana Panggabean]]>
<![CDATA[ Jurnal QOSIM : Jurnal Pendidikan, Sosial & Humaniora Vol 3 No 1 (2025): 2025 ]]>
Publisher : <![CDATA[Yayasan pendidikan dzurriyatul Quran ]]>
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DOI: 10.61104/jq.v3i1.753
<![CDATA[Penelitian ini bertujuan untuk meningkatkan kualitas pembelajaran melalui pengembangan Local Instruction Theory (LIT) berbasis Hypothetical Learning Trajectory (HLT). Kompetensi pedagogi guru menjadi fokus utama karena berperan dalam merancang lintasan belajar yang efektif. Lintasan belajar disusun dengan mempertimbangkan tingkat berpikir siswa secara alami untuk mendukung pembelajaran yang aktif dan bermakna. Penelitian ini menggunakan metode Design Research yang terdiri dari tiga tahapan utama: desain pendahuluan, eksperimen pembelajaran, dan analisis retrospektif. Pada tahap pendahuluan, HLT dirancang berdasarkan tujuan pembelajaran, aktivitas, serta media yang relevan. Eksperimen pembelajaran digunakan untuk mengimplementasikan HLT, sedangkan analisis retrospektif bertujuan mengevaluasi efektivitas lintasan belajar yang diterapkan. Hasil penelitian menunjukkan bahwa perencanaan HLT yang baik mampu meningkatkan pemahaman siswa terhadap konsep integral fungsi trigonometri, termasuk teknik substitusi dan parsial. Dengan pendekatan ini, siswa tidak hanya memahami konsep dasar, tetapi juga mampu mengaplikasikannya dalam konteks soal-soal UTBK/SBMPTN. Implikasi penelitian ini memberikan kontribusi signifikan terhadap strategi pembelajaran berbasis kompetensi dan pengembangan kemampuan berpikir kritis siswa.]]>
