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THE IMPLEMENTATION OF PROBLEM BASED LEARNING MODEL TO INCREASE STUDENTS’ MATHEMATICAL PROBLEM SOLVING FOR GRADE VIII AT SMP NEGERI 37 MEDAN 2019/2020 Rosinta Meissi Sitinjak; Erlinawaty Simanjuntak
JURNAL HANDAYANI PGSD FIP UNIMED Vol 10, No 2: December 2019
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (466.228 KB) | DOI: 10.24114/jh.v10i2.16054

Abstract

Abstract: This study aimed to increase students’ mathematical problem solving ability in the numerical pattern material by using problem based learning model in grade VIII of SMP Negeri 37 Medan.. This research was a classroom action research conducted in 2 cycles, each cycle consisted of two meetings, where at the end of each cycle a test of students mathematics problem solving ability (TKPM) was given. The results showed that: in the cycle I, the level of TKPM was moderate with an average value of 68.22, the students who achieved the target of success were 21 students from 32 students (65.625%), in the cycle II the level of TKPM was high with an average value of 80.82, the students who achieved success targets were 28 students from 32 students (87.5%). Based on the those results, it was concluded that the problem-based learning model increased students’ mathematics problem solving ability in class VIII of SMP Negeri 37 Medan in the academic year 2019/2020. Keywords: Problem Based Learning Model, Mathematics Problem Solving Ability Abstrak  Penelitian ini bertujuan untuk meningkatkan kemampuan pemecahan masalah matematika siswa dengan menerapkan model pembelajaran berbasis masalah di kelas VIII SMP Negeri 37 Medan. Penelitian ini merupakan penelitian tindakan kelas yang dilaksanakan dalam 2 siklus, masing-masing terdiri dari dua pertemuan, dimana di akhir setiap siklus diberikan Tes Kemampuan Pemecahan Masalah (TKPM). Hasil penelitian menunjukkan bahwa: Pada siklus I, hasil TKPM siswa adalah sedang dengan nilai rata-rata 68,22, dimana siswa yang mencapai target keberhasilan adalah 21 orang dari 32 orang siswa (65,625%), pada siklus II TKPM siswa adalah tinggi dengan nilai rata-rata 80,82, dimana siswa yang mencapai target keberhasilan adalah 28 orang dari 32 orang siswa (87,5%), Berdasarkan uraian diatas disimpulkan bahwa model pembelajaran berbasis masalah dapat meningkatkan kemampuan pemecahan masalah matematika siswa di kelas VIII SMP Negeri 37 Medan T.A. 2019/2020. Kata Kunci: Model Pembelajaran Berbasis Masalah, Kemampuan Pemecahan Masalah Matematika
Pengaruh Model Problem Based Learning terhadap Kemampuan Computational Thinking Berbantuan Media Geogebra Saniy Basiyroh Manullang; Erlinawaty Simanjuntak
Journal on Education Vol 6 No 1 (2023): Journal On Education: Volume 6 Nomor 1 Tahun 2023
Publisher : Departement of Mathematics Education

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/joe.v6i1.4127

Abstract

The research aims to determine: (1) the effect of the problem-based learning models on computational thinking skills assisted by geogebra media; (2) student responses to the use of geogebra-assisted problem-based learning models for flat sided geometric material. The type of research is a quasi-experimental with a posttest-only control design, the research population was all students of class VIII SMP Negeri 23 Medan for the 2022/2023 academic year. The sample of this research were 25 students in the experimental class and 25 students in the control class who were taken by cluster random sampling. Data collection on computational thinking skills used a test instrument in the form of a description consisting of 2 questions and student responses using a response questionnaire. The indicators of computational thinking skills that were measured in this research were decomposition, pattern recognition, generalization and abstraction, and algorithmic thinking. Data analysis used the t test (Independent Sample t-Test) for computational thinking skills and percentages for student response questionnaire. Based on the research results obtained (1) there is a significant influence of the problem-based learning model on the ability computational thinking skills assisted by geogebra; (2) there is a positive response from students towards the use of a problem-based learning model assisted by geogebra media on flat sided geometric material.
PENGEMBANGAN LEMBAR KERJA PESERTA DIDIK (LKPD) BERBASIS PENDEKATAN METAKOGNITIF PADA MATERI POLA BILANGAN Demita A.Y. Nainggolan; Simanjuntak Erlinawaty
Jurnal Fibonaci: Jurnal Pendidikan Matematika Vol. 1 No. 1 (2020): Jurnal Fibonaci: Jurnal Pendidikan Matematika
Publisher : Prodi Pendidikan Matematika FMIPA Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/jfi.v1i1.19064

Abstract

Penelitian ini secara umum bertujuan untuk menghasilkan LKPD berbasis pendekatan metakognitif, secara khusus bertujuan untuk: 1) Mendeskripsikan kevalidan produk pengembangan LKPD berbasis pendekatan metakognitif pada materi pola bilangan; 2) Mendeskripsikan kepraktisan produk pengembangan LKPD berbasis pendekatan metakognitif pada materi pola bilangan; 3) Mendeskripsikan keefektifan produk pengembangan LKPD berbasis pendekatan metakognitif pada materi pola bilangan. Penelitian ini merupakan penelitian dan pengembangan, dengan menggunakan model ADDIE (analysis, design, development, implementation, and evaluation). Hasil penelitian menunjukkan bahwa: (1) Perangkat pembelajaran berbasis pendekatan metakognitif yang dikembangkan telah memenuhi kriteria kevalidan berdasarkan hasil validasi oleh  validator dengan rata-rata validitas RPP adalah 4,19 dengan kategori valid dan rata-rata validitas LKPD adalah 4,43 dengan kategori valid; (2) Perangkat pembelajaran berbasis pendekatan metakognitif pada materi pola bilangan yang dikembangkan telah memenuhi kriteria kepraktisan melalui: a) para ahli/validator menyatakan layak diuji cobakan dengan revisi sesuai saran atau tanpa revisi; b) observer menyatakan bahwa keterlaksanaan pembelajaran rata-rata 84,61% dengan kategori baik; (3) Perangkat pembelajaran berbasis pendekatan metakognitif pada materi pola bilangan yang dikembangkan telah memenuhi kriteria keefektifan. (4) Peningkatan pretest dan postest diketahui  melalui Gain antara pretest dan posttest yang diperoleh sebesar 0,745 dengan kategori tinggi.
Pengembangan Bahan Ajar Berbasis Aplikasi R Dalam Penerapan OBE Untuk Meningkatkan Kemampuan Computational Thinking Berdasarkan Gender Katrina Samosir; Erlinawaty Simanjuntak; Hanna Dewi Marina Hutabarat
Jurnal Fibonaci: Jurnal Pendidikan Matematika Vol. 6 No. 1 (2025): Jurnal Fibonaci: Jurnal Pendidikan Matematika
Publisher : Prodi Pendidikan Matematika FMIPA Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/jfi.v6i1.66353

Abstract

Penelitian ini bertujuan untuk mengembangkan bahan ajar digital berbasis aplikasi R yang mendukung penerapan pendekatan Outcomes-Based Education (OBE) dalam pembelajaran mata kuliah Metode Statistika. Fokus utama penelitian ini adalah peningkatan kemampuan computational thinking mahasiswa dengan mempertimbangkan perbedaan gender. Model pengembangan yang digunakan adalah Research and Development oleh Lee & Owens yang meliputi tahap analisis kebutuhan, perancangan instruksional, pengembangan multimedia, dan evaluasi. Penelitian dilakukan pada mahasiswa Jurusan Matematika Universitas Negeri Medan pada semester genap 2023/2024. Hasil penelitian menunjukkan bahwa e-book interaktif yang dikembangkan valid, praktis, dan efektif dalam meningkatkan keterampilan berpikir komputasional. Selain itu, data survei menunjukkan bahwa mahasiswa cenderung lebih menyukai bahan ajar digital, dengan wanita menunjukkan tingkat keterlibatan teknologi yang lebih tinggi dibandingkan pria. Analisis juga mengindikasikan bahwa ilustrasi, visualisasi, dan perangkat lunak memainkan peran penting dalam meningkatkan pemahaman konsep kompleks. Temuan ini menegaskan pentingnya pengembangan bahan ajar yang responsif terhadap karakteristik gender dan kebutuhan pembelajaran berbasis capaian. 
Pengaruh Model Pembelajaran Berbasis Masalah dengan Pendekatan Teaching at the Right Level Berbantuan Canva Terhadap Kemampuan Literasi Numerasi Siswa SMA Samudera Efendi Marpaung; Waminton Rajagukguk; Mukhtar; Erlinawaty Simanjuntak; Eri Widyastuti
Journal of Education Technology Information Social Sciences and Health Vol. 5 No. 2 (2026): September 2026
Publisher : CV. Rayyan Dwi Bharata

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.57235/jetish.v5i2.8425

Abstract

Penelitian ini bertujuan untuk mengetahui pengaruh model pembelajaran berbasis masalah dengan pendekatan teaching at the right level berbantuan Canva terhadap kemampuan literasi numerasi siswa SMA. Jenis penelitian ini adalah kuantitatif menggunakan desain eksperimental semu (posttest only nonequivalent groups) dengan sampel dua kelas. Data dikumpulkan melalui hasil tes posttest kedua kelas dan dianalisis menggunakan uji nonparametrik Mann-Whitney U. Hasil penelitian menunjukkan nilai Asymp. Sig. (2-tailed) = 0.110 (> 0.05), sehingga tidak terdapat pengaruh yang signifikan dari penerapan model pembelajaran berbasis masalah dengan pendekatan teaching at the right level berbantuan Canva terhadap kemampuan literasi numerasi siswa SMA. Penelitian selanjutnya disarankan memberikan perlakuan lebih lama lagi serta mengombinasikan model dengan pendekatan lain agar hasilnya lebih optimal.
A comparison of computational thinking skills: PBL model vs traditional learning Erlinawaty Simanjuntak; Sahat Saragih; Elvis Napitupulu
AXIOM : Jurnal Pendidikan dan Matematika Vol 14, No 1 (2025)
Publisher : State Islamic University of North Sumatra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30821/axiom.v14i1.13660

Abstract

Computational thinking abilities assist students in solving complex problems, enhancing productivity, and preparing them to face challenges in various fields. The problem-based learning (PBL) model was chosen because it is believed to improve students' computational thinking skills, as well as their critical and creative thinking abilities, which are often difficult to achieve through conventional learning. This research aims to determine the differences in students' computational thinking abilities through the application of problem-based learning and traditional learning methods. The research method was an experiment involving a population of all 2020 Mathematics Education students who took six linear program courses at Medan State University. Sampling was conducted using a random sampling technique, focusing on the PSPM 20B and PSPM 20C classes, totaling 60 students. This study employed a pretest-posttest control group design. Results from previous research indicated that the average computational thinking ability of students in the experimental class was higher than that of the control class, with scores of 82.67 for the experimental class and 69.00 for the control class. From the results of the average difference test, it can be concluded that there is a significant difference in the computational thinking abilities of students taught using the problem-based learning model compared to those taught using the traditional learning model, with PBL being more effective.
PENGARUH MODEL PROBLEM BASED LEARNING BERBANTUAN AUTOGRAPH TERHADAP KEMAMPUAN BERPIKIR KOMPUTASI SISWA PADA MATERI STATISTIKA SMP Griselda Aritonang; Erlinawaty Simanjuntak
Eksakta : Jurnal Penelitian dan Pembelajaran MIPA Vol 9, No 2 (2024): 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.v9i2.406-415

Abstract

This study5aims to find5out5whether3there5is an influence of the Problem Based Learning model assisted by Autograph on students computational thinking skills in junior high5school5statistics materials. This research5was conducted5at Methodist Private Junior High School 12 Medan T.A 2023/2024.  The research method5used is the quasi experiment method. The sample in this study consists of two classes, namely5class VIII-A as an experimental class and class VIII-B as a control5class.  Based on the results of the study, it was obtained t_hitungt_tabel  (6,3141,686) which means that there was an influence of the Autograph-assisted Problem Based Learning model on the computational thinking ability of grade VIII students at Methodist 12 Medan Private Junior High School and the Autograph-assisted Problem5Based Learning model had an effect on5students' computational thinking ability of 1,995 (big effect).