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Pembuktian Teorema Matematika dan Penalaran Berfikir Panggabean, Ellis Mardiana
JURNAL PENDIDIKAN MATEMATIKA "EUREKA" Vol 1, No 1 (2012): EUREKA
Publisher : JURNAL PENDIDIKAN MATEMATIKA "EUREKA"

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Abstract

Pembuktian Teorema Matematika dan Penalaran Berfikir
PENGEMBANGAN BAHAN AJAR MATA KULIAH PROGRAM LINIER BERBANTUAN SOFTWARE LINDO Feri Haryati; Ellis Mardiana Panggabean; Sri Wahyuni
AKSIOMA: Jurnal Program Studi Pendidikan Matematika Vol 10, No 4 (2021)
Publisher : UNIVERSITAS MUHAMMADIYAH METRO

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (600.729 KB) | DOI: 10.24127/ajpm.v10i4.3470

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AbstrakPenelitian ini bertujuan untuk mengembangkan bahan ajar Program linier berbantuan software lindo. Metode penelitian yang digunakan adalah penelitian pengembangan (developmental research) menggunakan tahapan perencanaan, perancangan, dan pengembangan yang diadopsi dari model pengembangan Thiagarajan dan mahasiswa semester V pendidikan matematika sebagai subyek penelitian. Instrumen yang digunakan terdiri dari lembar validasi yang diisi oleh ahli bidang pendidikan matematika, lembar penilaian kepraktisan mahasiswa, dan tes hasil belajar dengan soal pemecahan masalah. Kualitas modul yang dikembangkan ditinjau dari aspek kevalidan, aspek kepraktisan dan aspek keefektifan. Hasil uji kevalidan dari para ahli yang terdiri dari ahli materi, ahli media dan ahli bahasa diperoleh bahwa bahan ajar Program linier Berbantuan software Lindo termasuk pada kriteria kelayakan sangat valid. Uji kepraktisan oleh mahasiswa pengguna bahan ajar diperoleh bahwa bahan ajar program linier berbantuan software lindo termasuk dalam kriteria sangat praktis. Adapun uji efektivitas bahan ajar program linier berbantuan software lindo pada tes hasil belajar mahasiswa menggunakan soal kemampuan pemecahan masalah matematis mahasiswa menunjukkan bahwa kemampuan pemecahan masalah matematis kelas yang menggunakan bahan ajar program linier lebih baik daripada kelas konvensional . Berdasarkan ketiga hasil tersebut dapat disimpulkan bahwa bahan ajar program linier berbantuan software lindo memenuhi ketiga kriteria tersebut, yaitu: valid, praktis, dan efektif. Kata kunci: bahan ajar;pengembangan.AbstractThis study aims to develop teaching materials for linear programming assisted by lindo software. The research method used is developmental research using the stages of planning, design, and development adopted from the Thiagarajan development model and fifth semester students of mathematics education as research subjects. The instrument used consisted of a validation sheet filled out by experts in the field of mathematics education, student practicality assessment sheets, and learning outcomes tests with problem solving questions. The quality of the developed modules is reviewed from the aspect of validity, practicality and effectiveness. The results of the validity test from experts consisting of material experts, media experts and linguists obtained that the Lindo software-assisted linear program teaching materials included in the eligibility criteria were very valid. The practicality test by students using teaching materials was found that the linear program teaching materials assisted by the Lindo software were included in the very practical criteria. The test of the effectiveness of linear programming teaching materials assisted by Lindo software on student learning outcomes tests using students' mathematical problem solving abilities showed that the mathematical problem solving abilities of classes using linear programming teaching materials were better than conventional classes. Based on these three results, it can be concluded that the linear programming teaching materials assisted by the Lindo software meet the three criteria, namely: valid, practical, and effective. Keywords: development, teaching materials
Pengembangan Bahan Ajar Dengan Strategi React Pada Mata Kuliah Struktur Aljabar I Di FKIP UMSU Ellis Mardiana Panggabean
EDUTECH Vol 1, No 01 (2015): EduTech: Jurnal Ilmu Pendidikan dan Ilmu Sosial
Publisher : EduTech: Jurnal Ilmu Pendidikan dan Ilmu Sosial

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (159.148 KB) | DOI: 10.30596/edutech.v1i01.268

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In designing a lesson, a lecturer need to consider what material should be taught, and how is the appropriate method to teach, and how to make sure that all students will learn the subject. Struktur Aljabar I is one of mathematic pure proficiency  material at Mathematic departement. the characteristic of Struktur Aljabar has tight and cronological  axiomatic deductive structure, full of abstract concept in definition or theorem. Therefore, Struktur Ajabar is difficult to learn and difficult to taught. that is why learning material and teaching activity is needed tobe directed in order to help the student to understand the link between the concepts, managing their own self learning, cooperating, and critical thinking. The aim of this study is to develop learning material by using REACT strategy at Struktur Aljabar I subject. This developing and trial research consist of design, limited trial application, and data analysis. descriptive analysis was used, and this research development produced a protoype Struktur Aljabar I material REACT base.  Keywords: development, learning material, REACT strategy, Struktur Aljabar I
PENGARUH HASIL BELAJAR MAHASISWA MENGGUNAKAN MODEL PEMBELAJARAN BERBASIS MASALAH DI FKIP UMSU Indra Maryanti; Sri Wahyuni; Ellis Mardiana Panggabean
JURNAL MATHEMATIC PAEDAGOGIC Vol 2, No 1 (2017): september 2017
Publisher : Universitas Asahan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (295.467 KB) | DOI: 10.36294/jmp.v2i1.126

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Model pembelajaran, metode pembelajaran dan teknik pembelajaran yang digunakan oleh dosen akan mempengaruhi hasil belajar mahasiswa. Salah satu model pembelajaran yang merupakan model pembelajaran student centered adalah Problem Based Learning (PBL) atau pembelajaran berbasis masalah.Adapun tujuan penelitian ini: (1) Apakah ada pengaruh penggunaan model pembelajaran Berbasis Masalah (PBM) terhadap hasil belajar mahamahasiswa pada mata kuliah aljabar linier elementer prodi pendidikan matematika FKIP UMSU. (2) Berapa besar pengaruh penggunaan model pembelajaran Berbasis masalah (PBM) terhadap hasil belajar mahamahasiswa pada mata kuliah aljabar linier elementer prodi pendidikan matematika FKIP UMSU? Penelitian ini merupakan penelitian eksperimen semu.Adapun teknik analisis data dilakukan dari tahapan uji deskripsi data, selanjutnya uji prasyarat yaitu uji normalitas dan kelinieritasan, kemudian uji hipotesis. Langkah-langkah dalam penelitian adalah sebagai berikut : (1) Peneliti memberikan stimulus untuk kelas sample yaitu dengan model pembelajaran Berbasis Masalah; (2) Pada saat poses pembelajaran dosen melihat keaktifan belajar mahasiswa; (3) Memberikan tes essay untuk melihat tingkat keberhasilan mahasiswa dalam pembelajaran; (4) Melakukan uji statistik untuk melihat pengaruh hasil belajar mahasiswa menggunakan model pembelajaran Berbasis Masalah. Hasil penelitian menunjukkan bahwa terdapat pengaruh penggunaan model pembelajaran Berbasis masalah (PBM) terhadap hasil belajar mahamahasiswa pada mata kuliah aljabar linier elementer prodi pendidikan matematika FKIP UMSU yaitu sebesar 75,8%.
PENGEMBANGAN LKPD INTERAKTIF BERBASIS ICT BERBANTUAN SOFTWARE CONSTRUCT 2 UNTUK SISWA MTs Meyly Andyny; Ellis Mardiana Panggabean
Journal Mathematics Education Sigma [JMES] Vol 2, No 2 (2021): JOURNAL MATHEMATICS EDUCATION SIGMA
Publisher : Journal Mathematics Education Sigma [JMES]

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30596/jmes.v2i2.7982

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LKPD (Lembar Kerja Peserta Didik) merupakan bahan ajar yang digunakan untuk memaksimalkan pemahaman siswa. LKPD memuat sekumpulan tugas mendasar siswa yang dilengkapi dengan materi, ringkasan, serta petunjuk pelaksanaan yang sesuai dengan indikator pencapaian. Penggunaan LKPD dapat meningkatkan efektivitas dan  efisiensi dalam proses pembelajaran. Penelitian ini bertujuan untuk mengembangkan LKPD interaktif berbasis ICT berbantuan software Construct 2 untuk siswa MTs kelas VII pada materi hubungan antar sudut dan untuk mengetahui kelayakan serta respon siswa terhadap LKPD interaktif berbasis ICT berbantuan software Construct 2 untuk siswa MTs kelas VII pada materi hubungan antar sudut. Model pengembangan yang digunakan adalah model 4-D atau 4-P yang dimodifikasi menjadi tiga tahap, yaitu tahap pendefinisian (define), tahap perancangan (design), dan tahap pengembangan (develop). Subjek penelitian ini adalah siswa MTs Amaliyah Sunggal kelas VII dengan menggunakan skala kecil sebanyak 10 orang siswa. Instrumen penelitian yang digunakan adalah angket yang terdiri dari angket penilaian ahli materi, angket penilaian ahli media, dan angket respon siswa. LKPD interaktif berbasis ICT berbantuan software Construct 2 pada materi hubungan antar sudut yang dikembangkan memenuhi kriteria sangat layak digunakan untuk siswa MTs kelas VII. Kelayakan terlihat dari hasil penilaian validator, dimana dari hasil penilaian ahli materi diperoleh nilai 88,2% dengan kategori sangat layak, dari ahli media diperoleh nilai 88,4% dengan kategori sangat layak, dan angket respon siswa diperoleh nilai 91,8% dengan kategori sangat menarik.
Pengembangan Pembelajaran Matematika Dengan Menggunakan Model Realistic Mathematics Education Untuk Meningkatkan Kemampuan Pemahaman Konsep Siswa MTs Utari Prantika Hasibuan; Ellis Mardiana Panggabean
Journal Mathematics Education Sigma [JMES] Vol 3, No 1 (2022): JOURNAL MATHEMATICS EDUCATION SIGMA
Publisher : Journal Mathematics Education Sigma [JMES]

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30596/jmes.v3i1.9499

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Abstract. The formulation of the problem in this study is: How is the mathematics learning device with the Realistic Mathematics Education model developed by MTs students. This study aims to develop learning tools in the form of lesson plans, teaching materials, LKPD, learning media, and assessment tools based on Realistic Mathematics Education on similarity and congruence materials for grade IX MTs students. The quality of the developed products is assessed based on aspects of validity, practicality, and effectiveness. The procedure for developing learning tools refers to the 4-D development model, namely Define, Design, Develop, and Desseminate. Due to the limitations of the researchers, the research was carried out until it was developed. The subjects of this study were students of class IX-3 MTs Negeri 2 Medan. The instruments used to measure the quality of the learning tools developed were RPP assessment sheets, teaching materials, LKPD, learning media, and assessment tools to measure the validity of these devices. maximum score of 5.00 with good criteria. The average score of teaching materials is 3.73 from a maximum score of 5.00 with good criteria. The average score of LKPD is 3.83 out of a maximum score of 5.00 with good criteria. The average score of learning media is 3.83 out of a maximum score of 5.00 with good criteria, and the average THB score is 3.79 out of a maximum score of 5.00 with good criteria.Abstrak. Rumusan masalah dalam penelitian ini adalah : Bagaimana perangkat pembelajaran matematika dengan model Realistic Mathematics Education hasil pengembangan pada siswa MTs. Penelitian ini bertujuan untuk mengembangkan perangkat pembelajaran berupa RPP, Bahan ajar, LKPD, Media pembelajaran, dan perangkat penilaian berbasis Realistic Mathematics Education pada materi kesebangunan dan kekongruenan untuk siswa MTs kelas IX. Kualitas produk yang dikembangkan dinilai berdasarkan aspek kevalidan, kepraktisan, dan keefektifan. Prosedur Pengembangan perangkat pembelajaran mengacu pada model pengembangan 4-D, yaitu Define (Pendefenisian), Design (Perancangan), Develop (Pengembangan), dan Desseminate (Penyebaran). Karena keterbatasan peneliti, penelitian dilakukan hingga tahan develop. Subjek penelitian ini adalah siswa kelas IX-3 MTs Negeri 2 Medan. Instrumen yang digunakan untuk mengkur kualitas perangkat pembelajaran yang dikembangkan adalah lembar penilaian RPP, Bahan ajar, LKPD, Media pembelajaran, dan Perangkat penilaian untuk mengukur kevalidan perangkat tersebut.Kualitas kevalidan perangkat pembelajaran memenuhi kriteria valid berdasarkan skor rata-rata RPP yaitu 3,85 dari skor maksimal 5,00 dengan kriteria baik. Skor rata- rata bahan ajar yaitu 3,73 dari skor maksimal 5,00 dengan kriteria baik. Skor rata-rata LKPD yaitu 3,83 dari skor maksimal 5,00 dengan kriteria baik. Skor rata- rata media pembelajaran yaitu 3,83 dari skor maksimal 5,00 dengan kriteria baik, dan skor rata-rata THB yaitu 3,79 dari skor maksimal 5,00 dengan kriteria baik.
The Effectiveness of Mathematics Learning in HOTS-Based Student Mathematics Learning Planning Sri Wahyuni; Ellis Mardiana Panggabean; Feri Haryati
Budapest International Research and Critics Institute-Journal (BIRCI-Journal) Vol 5, No 2 (2022): Budapest International Research and Critics Institute May
Publisher : Budapest International Research and Critics University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33258/birci.v5i2.5364

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The lesson plan is very important to be mastered by the teacher to be able to carry out learning in the classroom to be directed. The lesson plan also contains a question instrument as an assessment of the achievement of learning indicators. The questions compiled must contain high-level thinking-based questions in this 4.0 century. However, in reality, many teachers have difficulty compiling lesson plans with high-level thinking questions. Student teacher candidates also have not been able to design high-level question-based questions. This study aims to see the effectiveness of mathematical literacy in planning student mathematics learning based on HOTS. This research is qualitative research using research methods in the form of data analysis of research results about HOTs that have been designed, interviews, and documentation. The results of this study indicate that the average value of students in planning HOTs-based mathematics learning is 85.7%. Then based on the HOTs-based learning planning that has been designed, 77.8% of students have been able to design questions and their answers by applying questions in everyday life and designing open-ended questions.
Application Of The Treffinger Learning Method To Improve Mathematical Reasoning In IT Al Maksum Sunggal SMP Students T.P 2020/2021 Eggy Monicasari; Ellis Mardiana Panggabean
Indonesian Journal of Education and Mathematical Science Vol 2, No 3 (2021)
Publisher : UMSU

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30596/ijems.v2i3.8125

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This study aims to (1) describe that the Treffinger Model can increase the activities of SMP IT Al-MaksumSunggal T.P 2020/2021 students. (2) To describe that the Treffinger Model can improve the mathematical reasoning of SMP IT Al-Maksum Sunggal T.P 2020/2021 students. The research subjects were students of class VII-A SMP IT Al-Maksum Sunggal T.P 2020/2021, totaling 19 people. This research is a classroom action research (CAR) which is carried out in 3 cycles. Each cycle consists of planning, implementing actions, observing and reflecting. Data were collected through observation, tests of students' mathematical reasoning abilities and interviews during the learning process. From the results of data analysis, it is concluded (1) The application of the Treffinger model can increase the activity of students of SMP IT Al-MaksumSunggal T.P 2020/2021. (2) The application of the Treffinger model can improve the mathematical reasoning of SMP IT Al-MaksumSunggal T.P 2020/2021 students.
Development of Mathematics Assessment Instruments for High School Students Based on Higher-Order Thinking Skills (HOTS) Ellis Mardiana Panggabean; Feri Haryati; Sri Wahyuni
AL-ISHLAH: Jurnal Pendidikan Vol 14, No 4 (2022): AL-ISHLAH: Jurnal Pendidikan
Publisher : STAI Hubbulwathan Duri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35445/alishlah.v14i4.1411

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This study aims to develop a mathematical assessment instrument for senior high school students based on higher order thinking skills (HOTS). This research is development research that aims to develop a valid, practical and effective HOTS assessment instrument. The development model used is the Tessmer’s model. There are five steps applied in this study, namely preliminary, self-evaluation, expert review, one-to-one and small group and field testing.  The research findings explained that each item met the validity of content (content), construct, and language. Content validity is the compatibility between the questions and the indicators that have been set for each material. Fulfilling construct validity refers to the instrument measured by the HOTS concept. It met the validity of the language because the sentence structure in the question followed the correct Indonesian language rules and did not contain double meanings or ambiguity. Therefore, this item is appropriate to be used as an alternative teaching material for students to develop their higher-order thinking skills, especially in the material about flat-plane analytical geometry.
IMPLEMENTASI EVEKTIVITAS TEORI BELAJAR KONTRUKTIVISME PADA METODE PENEMUAN MENINGKATKAN HASIL BELAJAR SISWA SMP NEGERI 1 STABAT Hendrik Hendrik; Ellis Mardiana Panggabean
Akrab Juara : Jurnal Ilmu-ilmu Sosial Vol 6 No 1 (2021): Februari
Publisher : Yayasan Azam Kemajuan Rantau Anak Bengkalis

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Abstract

The purpose of this research is to find out whether the application of constructivism learning theory to the discovery method can increase the effectiveness of student learning. 2. to find out how the application of constructivism learning theory to the discovery method can increase the effectiveness of student learning. This research was carried out by giving the discovery method learning treatment to the subjects of Stabat 1 Public Middle School students. From the results of data analysis, it was found that students' mastery of material was 76.91% in the medium category, classical learning mastery was 87.3%, achievement of specific learning objectives as a whole was 80%. Based on the results of this study, it can be concluded that learning mathematics using the discovery method at Stabat 1 Public Middle School is effective. So this method can be an alternative method of learning mathematics.