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All Journal EKSAKTA : Jurnal Penelitian dan Pembelajaran MIPA JURNAL MATHEMATIC PAEDAGOGIC Delta: Jurnal Ilmiah Pendidikan Matematika MES: Journal of Mathematics Education and Science SEPREN: Journal of Mathematics Education and Applied Journal Mathematics Education Sigma [JMES] Asimetris: Pendidikan Matematika dan Sains
Octariani, Dhia
Universitas Islam Sumatera Utara
Agriculture, Biological Sciences & Forestry Chemistry Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Mathematics Physics Other

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KONTRIBUSI KEMAMPUAN BERPIKIR KOMBINATORIK DALAM PEMBELAJARAN STATISTIKA MATEMATIKA Syahlan Syahlan; Dhia Octariani
Delta: Jurnal Ilmiah Pendidikan Matematika Vol 9, No 2 (2021): Delta : Jurnal Ilmiah Pendidikan Matematika
Publisher : Universitas Pekalongan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31941/delta.v9i2.1405

Abstract

Combinatoric ability allows the process of connecting several patterns and principles in formula discovery activities through generalizations to help students see the application of mathematics in real life. The model given can help in making broad rough estimates in developing their insights. The purpose of this study was to find out how combinatoric thinking skills are and whether combinatoric thinking skills contribute to mathematical statistics courses. This research belongs to the field of social sciences and can use this type of qualitative descriptive approach. The data were collected using a descriptive test which consisted of four items related to combinatoric problems. The data from the research results were processed using the SPSS program to get the contribution value of combinatoric thinking skills during the mid-test and final-test. with 23 students. The results of the analysis showed that the students' combinatoric thinking skills were quite good, where the mean and standard deviation were 71.27 and 6.09 during the middle exam and 72.00 and 5.88 at the time of the final exam. The problem that students have in combinatoric skills is the problem of mathematical modelling. The test results show that combinatoric thinking skills have a significant contribution to the mathematics-statistics course.
PENDEKATAN EKSPLORASI UNTUK MENGEMBANGKAN KEMAMPUAN SELF-REGULATED LEARNING (SRL) MATEMATIKA SISWA SMP dhia octariani
Sepren Vol 1 No 02 (2020): Edisi April 2020
Publisher : Prodi Pendidikan Matematika FKIP Universitas HKBP Nommensen

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36655/sepren.v1i02.193

Abstract

This research is an experimental study with only posttest control design that aims to develop students' mathematical self-regulated learning (SRL) abilities. The population subject is VII grade private junior high school students in one of the schools in Medan. The experimental class gets learning with an exploratory approach and the control class gets conventional learning. With a total number of students 68 students of class VII junior high school consisting of 34 students in the experimental class, and 34 students in the control class. The instruments used in this study were mathematics self-regulated learning (SRL) scale, observation sheets, and questionnaire results. The results of this study indicate that an exploratory approach can improve the ability of mathematical self-regulated learning (SRL) better than using conventional approaches.
PENGEMBANGAN LEMBAR KERJA PESERTA DIDIK BERBASIS PROBLEM BASED LEARNING PADA MATERI LIMIT FUNGSI DI SMA SWASTA BUDISATRYA MEDAN Zulham Aditya; Bambang Irawan; Dhia Octariani
MES: Journal of Mathematics Education and Science Vol 7, No 1 (2021): Edisi Oktober
Publisher : Universitas Islam Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30743/mes.v7i1.4549

Abstract

This study discusses the development of the Student  Worksheets based on Problem Based Learning on the function limit material at the Private SMA Budisatrya Medan based on valid, practical, and effective criteria. The development on this learning device uses the Thiagarajan 4-D development model, in this study the writer only up to 3-D stage, namely: definition, design,  and development. The result of the research on the development of the Student Worksheets based on Problem Based Learning  on the function limit material at the Private SMA Budisatrya Medan fulfill the valid criteria based on the result of the assessment of 5 validators by filling out an assessment questionnaire with an average score of 3,9 and being in the good category, the are practically abtained through a student response questionnaire with an average score of 4,07 and are in the good category, and are effectively obtained through student learning outcomes tests with an average score of 75% and are in the good category.
PENGEMBANGAN LEMBAR KERJA PESERTA DIDIK BERBASIS MODEL PEMBELAJARAN MATEMATIKA REALISTIK UNTUK MENINGKATKAN KEMAMPUAN BERPIKIR KRITIS SISWA Almadiah Almadiah; Syahlan Syahlan; Dhia Octariani
MES: Journal of Mathematics Education and Science Vol 7, No 2 (2022): Edisi April
Publisher : Universitas Islam Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30743/mes.v7i2.5155

Abstract

This study aims to describe the development of the student worksheets based on valid, practical and effective realistic mathematics learning models, and to determine the improvement of students’ critical thinking skills by using student worksheets based on realistic mathematics learning models. The type of research used is Research and Development research which refers to the 4-D model as stated by Thiagarajan (1974). However, in in its implementation, this research is limited to the define, design, and develop stages. The subjects in this study were students of class X IPS-1 SMA Setia Budi Abadi Perbaungan which consisted of 31 students. This research was conducted in the odd semester of 2021/2022 academic year. The research instrument used include the student worksheet assessment sheets to measure the validity, the critical thinking skills test, and student response questionnaires.Based on the results of the trials carried out, it was concluded that the developed student worksheets have fulfilled the validity criteria with an average score of 3.93%. The developed student worksheets have fulfilled the parcticality criteria in terms of the results of the validator’s assessment and student’s responses. The developed student worksheet have fulfiiled the criteria for the effectiveness in terms of. Completeness of learning, student responses, and the use of time in the learning process. The trial was carried out in two stages where there was an increase in the percentage of learning completeness from 35.48% to 93.54% with achievement indicators from 64.77% to 79.97%; student’s responses to learning are included in the effective category with an average of 88.17%; the use of time for the learning process in accordance with the available time allocation. Thus, the developed student worksheets fulfill the valid, practical and effective criteria.
OPTIMALISASI PEMBELAJARAN DIMASA PANDEMI COVID-19 MENGGUNAKAN GOOGLE CLASSROOM DAN ZOOM MEETING PADA MATAKULIAH STATISTIKA Arie Candra Panjaitan; Dhia Octariani
Journal Mathematics Education Sigma [JMES] Vol 2, No 1 (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.v2i1.6752

Abstract

Penelitian ini bertujuan untuk mengetahui sejauh mana keberhasilan proses belajar mengajar dalam masa pandemi covid-19. Pembelajaran yang berlangsung saat ini dilakukan secara daring (dalam jaringan) sehingga membutuhkan aplikasi pembelajaran untuk dapat mengatasi persoalan ini. Adapun aplikasi yang digunakan adalah Google Classroom dan Zoom Meeting, pemilihan aplikasi ini dikarenakan penggunaannya juga tergolong mudah untuk dapat dipelajari dan digunakan. Seperti halnya Google Classroom yang merupakan aplikasi belajar yang bersifat Learning Management System (LMS) juga merupakan aplikasi rujukan pemerintah yang digunakan dalam pembelajaran daring. Penggunaan aplikasi Zoom Meeting  bertujuan agar dosen dan mahasiswa dapat bertatap muka secara virtual agar proses transformasi belajar mengajar dapat dilakukan, aplikasi ini juga merupakan salah satu solusi dari persoalan Social Distancing dalam masa Pandemi Covid-19.
PENGARUH MODEL PEMBELAJARAN PROBLEM BASED LEARNING TERHADAP KEMAMPUAN METAKOGNITIF SISWA Metrilitna Br Sembiring; Dhia Octariani; Isnaini Halimah Rambe
Journal Mathematics Education Sigma [JMES] Vol 2, No 1 (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.v2i1.6874

Abstract

Penelitian ini bertujuan untuk mengetahui pengaruh model pembelajaran matematika terhadap keterampilan metakognitif siswa. Populasi pada penelitian ini sebanyak 30 siswa di salah satu SMA swasta di kota Medan dengan teknik purposive sampling. Metode dalam penelitian ini eksperimen semu. Desain yang digunakan nonequivalent control group design. Teknik pengumpulan data menggunakan angket respon siswa pada akhir pembelajaran. Sebelum pengujian hipotesis terlebih dahulu diuji normalitas data dan uji Homogenitas. Teknik analisis data yang digunakan adalah regresi linier ganda. Hasil Penelitian menunjukkan bahwa model pemebalajaran matematika berpengaruh positif terhadap keterampilan metakognitif, hasil ini dapat dilihat dari nilai koefisien regresi dari masing-masing bernilai positif, seperti yang terlihat pada persamaan regresi linier ganda: Y =. Model Pembelajaran Problrm based learning (PBL) terhadap Keterampilan Metakognitif dengan regresi dengan thitung = 11,385 dan tingkat signifikasi 0,000 < 0,05.  Hal ini menunjukkan bahwa model pembelajaran PBL berpengaruh secara signifikan terhadap keterampilan metakognitif siswa. Koefisien determinasinya adalah r2 = 0,400.
PENERAPAN MODEL PEMBELAJARAN TEAM GAMES TOURNAMENT (TGT) UNTUK MENINGKATKAN MOTIVASI DAN MINAT BELAJAR MATEMATIKA SISWA Dhia Octariani; Arie Candra Panjaitan
Asimetris: Jurnal Pendidikan Matematika dan Sains Vol 1 No 2 (2020): Asimetris: Jurnal Pendidikan Matematika dan Sains
Publisher : Pendidikan Matematika Universitas Almuslim

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51179/asimetris.v1i2.142

Abstract

Penelitian ini bertujuan untuk meningkatkan motivasi dan minat belajar siswa yang pembelajarannya dengan menerapkan model Team Games Tournament (TGT) pada materi bangun datar kelas VII SMP. Penelitian ini adalah penelitian tindakan kelas yang dilakukan dalam dua siklus, dimana setiap siklus terdiri dari empat tahapan yaitu: perencanaan, pelaksanaan, pengamatan, dan refleksi. Instrument yang digunakan dalam penelitain adalah lembar angket dan lembar observasi dimana dilakukan pada awal sebelum tindakan dan setelah Tindakan dilakukan. Data penelitian yang dianalisa adalah data kuantitatif dan data kualitatif. Hasil penelitian menunjukkan adanya peningkatan motivasi dan minat belajar matematika siswa kelas VII SMP mengunakan model Team Games Tournament (TGT) dalam pembelajaran dengan materi bangun datar dari kategori rendah menjadi kategori tinggi atau menjadi lebih baik.
PENGEMBANGAN LEMBAR KERJA PESERTA DIDIK BERBASIS PROBLEM BASED LEARNING UNTUK MENINGKATKAN MINAT BELAJAR SISWA KELAS XI SMK Eliyati Viranda; Metrilitna br Sembiring; Dhia Octariani; Isnaini Halimah Rambe
MES: Journal of Mathematics Education and Science Vol 7, No 2 (2022): Edisi April
Publisher : Universitas Islam Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30743/mes.v7i2.5462

Abstract

This study aims to: 1). Determine the level of validity, the effectiveness, and practicality of student worksheets developed with the learning model problem-based learning class XI in SMK, 2). Find out increase the learning interest of the students of class XI SMK after using students' worksheets with the model of problem-based learning. The research type used is Research and Development refers to model 4-D, namely define, design, develop, and disseminate. However, in this study, the research development worksheet using problem-based learning is modified bounded only at the stage of development. Subjects in this study were students of class XI business management of SMK Budi Utomo Cikampak. Instruments of assessment used are a validity questionnaire, a test of interest in learning, and a student responses questionnaire. The results obtained that the worksheet has been developed to meet the criteria of validity with an average score of 4.2 in the valid category. Mastery learning in the classical style has been experiencing an increase in trial I (59,09%) in trial II increased by (90,90%) with the learning time does not exceed the usual learning, the student worksheet has been effective. Student Worksheet has been developed to meet the criteria of practicality review of the questionnaire responses of students to the shows that the average score 81,76% with the strong category. (2) the learning Interest of students has increased, namely with an average increase from the pretest to the posttest with a score increase of 80.5% with a high category.
PENGEMBANGAN E-MODUL MATEMATIKA BERBASIS DISCOVERY LEARNING BERBANTUAN FLIPBOOK MAKER UNTUK MENINGKATKAN HASIL BELAJAR SISWA KELAS X SMA Ribca Rahel Purba; Afnaria Afnaria; Dhia Octariani
Eksakta : Jurnal Penelitian dan Pembelajaran MIPA Vol 8, No 1 (2023): Eksakta : Jurnal Penelitian dan Pembelajaran MIPA
Publisher : Fakultas Keguruan Dan Ilmu Pendidikan, UM-Tapsel

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31604/eksakta.v8i1.40-47

Abstract

Perkembangan teknologi mengubah orientasi belajar dari pembelajaran konvensional menjadi pembelajaran digital. Namun faktanya kebanyakan guru menggunakan model pembelajaran ceramah dan siswa masih menggunakan modul cetak, sehingga siswa tidak termotivasi dalam belajar. Hal ini dapat mempengaruhi hasil belajar. Maka, harus ada pembaharuan bahan ajar yang efektif, salah satunya berupa e-modul atau elektronik modul. Selanjutnya model pembelajaran yang membuat siswa lebih aktif, salah satunya adalah model discovery learning dimana pada model pembelajaran ini siswa berperan aktif dan guru hanya sebagai pembimbing. Untuk membuat e-modul digunakan aplikasi bantuan yaitu flipbook maker. Dengan demikian penelitian ini bertujuan untuk mengembangkan e-modul berbasis discovery learning berbantuan flipbook maker. Penelitian ini merupakan penelitian pengembangan dengan model ADDIE. Penelitian ini dilakukan di SMA Negeri 21 Medan dengan jumlah sampel 30 orang siswa. Hasil penelitian yang telah dilakukan menunjukkan bahwa e – modul yang dikembangkan layak digunakan. Hal ini dapat dilihat berdasarkan hasil validasi dari 4 orang validator  dengan skor rata-rata keseluruhan adalah 86,0% berada pada kriteria sangat valid. Kepraktisan diperoleh dari hasil angket siswa dengan skor rata – rata keseluruhan adalah 94,6% berada pada kriteria sangat baik. Keefektifan e-modul ditinjau dari ketuntasan hasil belajar siswa secara klasikal 90,0% siswa telah tuntas, ketercapaian tujuan pembelajaran minimal 83,3% tercapai, minimal 80,0% dari banyak subjek yang diteliti memberikan respon positif, waktu pembelajaran yang digunakan tidak melebihi pembelajaran biasa. Adapun peningkatan hasil belajar yang dilihat dari uji coba II dengan skor rata-rata keseluruhan 83,3% berada kategori sangat baik dan skor rata-rata N-gain 0,69 berada pada kategori sedang.
VALIDASI BUKU AJAR PENGEMBANGAN MEDIA PEMBELAJARAN MATEMATIKA BERBASIS TPACK Dhia Octariani; Metrilitna Br Sembiring
JURNAL MATHEMATIC PAEDAGOGIC Vol 7, No 2 (2023): Maret 2023
Publisher : Universitas Asahan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36294/jmp.v7i2.3278

Abstract

Penelitian ini bertujuan untuk mengembangan buku ajar pengembangan media pembelajaran matematika berbasis TPACK (Technological Pedagogical Content Knowledge) yang valid agar mampu meningkatkan penguasaaan teknologi, pedagogic, dan materi pembelajaran mahasiswa sebagai calon guru abad 21 yang propesional. Penelitian ini dibatasi dalam tahap pengembangan dan validasi buku ajar oleh para ahli. Hasil validasi para validator menyatakan buku ajar yang dikembangkan cukup valid dan layak digunakan pada tahan implemnatasi dengan skor rata-rata yang didapat 3,6 serta validasi perangkat lain yang dihasilkan seperti RPS dan angket profil TPACK mahasiswa juga dalam katagori valid dan dapat digunakan pada tahap implementasi.Kata kunci: Pengembangan buku ajar, TPACK (Technological Pedagogical Content Knowledge)
Co-Authors Afnaria, Afnaria Almadiah Almadiah Arie Candra Panjaitan Bambang Irawan Eliyati Viranda Metrilitna Br Sembiring Metrilitna Br Sembiring Rambe, Isnaini Halimah Ribca Rahel Purba Syahlan Syahlan Zulham Aditya