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All Journal Pythagoras: Jurnal Matematika dan Pendidikan Matematika Jurnal Daya Matematis JIPM (Jurnal Ilmiah Pendidikan Matematika) M A T H L I N E : Jurnal Matematika dan Pendidikan Matematika Humantech : Jurnal Ilmiah Multidisiplin Indonesia
E Elvis Napitupulu
Jurusan Matematika FMIPA Universitas Negeri Medan
Religion Economics, Econometrics & Finance Education Law, Crime, Criminology & Criminal Justice Mathematics Public Health

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Mengembangkan Strategi dan Kemampuan Siswa Memecahkan Masalah Matematik Napitupulu, E Elvis
PYTHAGORAS Jurnal Matematika dan Pendidikan Matematika Vol. 4 No. 2: Desember 2008
Publisher : Department of Mathematics Education, Faculty of Mathematics and Natural Sciences, UNY

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (60.765 KB) | DOI: 10.21831/pg.v4i2.557

Abstract

Pemecahan masalah menempati posisi sentral dan merupakan satu bentuk belajar terpenting dalam matematika. Untuk memecahkan masalah, dituntut kemampuan anak memilih dan menerapkan strategi yang sesuai, menggunakan pengetahuan siapnya, di samping memanfaatkan pengalaman memecahkan masalah sebelumnya. Namun fakta di lapangan menunjukkan kemampuan pemecahan masalah di seluruh jenjang sekolah di Indonesia masih rendah. Guru sebagai pengajar dan instruktur di kelas punya kesempatan untuk dapat meningkatkan kemampuan pemecahan masalah anak. Kemampuan itu dapat berkembang bila anak melihat bagaimana berbagai masalah dipecahkan dengan beragam strategi dan dan diberi pula kesempatan memecahkan bermacam masalah sambil membangun pengetahuan baru baginya.
Differences in Mathematics Concept Understanding Ability And Learning Independence of Students Reached with Discovery Learning and Cooperative Learning Model Type of Group Investigation at SMK Multi Karya Purba, Putri Anggraini; Sitompul, Pardomuan; Napitupulu, E Elvis
JIPM (Jurnal Ilmiah Pendidikan Matematika) Vol 12, No 1 (2023)
Publisher : Universitas PGRI Madiun

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25273/jipm.v12i1.13791

Abstract

: To find out the characteristics and advantages supported by data from previous research, which shows that learning with discovery and cooperative learning models of group investigation type can improve students' ability to understand mathematical concepts and independent learning. The findings obtained several conclusions related to implementing learning using the discovery learning model and the group investigation learning model on differences in the ability to understand mathematical concepts and student learning independence at SMK Multi Karya. 
METASINTESIS PENGEMBANGAN LEMBAR KERJA PESERTA DIDIK UNTUK MENINGKATKAN KEMAMPUAN REPRESENTASI MATEMATIS SISWA Rosa, Silvia Septi; Napitupulu, E Elvis
Humantech : Jurnal Ilmiah Multidisiplin Indonesia Vol. 2 No. 4 (2023): Humantech : Jurnal Ilmiah Multidisiplin Indonesia 
Publisher : Program Studi Akuntansi IKOPIN

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Penelitian ini bertujuan untuk mendeskripsikan kecenderungan setiap artikel jurnal pengembangan lembar kerja peserta didik untuk meningkatkan kemampuan representasi matematis siswa dan mendeskripsikan metasintesis mengenai pengembangan lembar kerja peserta didik untuk meningkatkan kemampuan representasi matematis siswa. Penelitian ini merupakan penelitian systematic review yang menggunakan pendekatan metasintesis. Jenis penelitian ini adalah kualitatif deskriptif. Subjek penelitian ini adalah artikel jurnal tentang pengembangan lembar kerja peserta didik untuk meningkatkan kemampuan representasi matematis siswa. Objek dalam penelitian ini adalah kemampuan representasi matematis siswa sebelum dan sesudah menggunakan lembar kerja yang dikembangkan. Hasil penelitian menunjukkan bahwa lembar kerja peserta didik yang dikembangkan oleh para pengembang sangat baik digunakan untuk meningkatkan kemampuan representasi matematis siswa.
Analysis of Answering Process on Problem Solving Ability Through Problem-Based Learning Model: Analisis Proses Jawaban Kemampuan Pemecahan Masalah Melalui Model Problem-Based Learning Sari, Nilam; Saragih, Sahat; Napitupulu, E Elvis; Rakiyah, Siti; Suciawati, Hasni; Anim, Anim
Mathline : Jurnal Matematika dan Pendidikan Matematika Vol. 7 No. 2 (2022): Mathline: Jurnal Matematika dan Pendidikan Matematika
Publisher : Universitas Wiralodra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31943/mathline.v7i2.287

Abstract

This study was made to find out how the process of completing student answers incompleting the problem-solving ability test through a problem-based learning model.The process of completing the answers to the mathematical problem solving ability test can be viewed from 2 (two) aspects, namely:1) the procedure used in solving the problem and, 2)the mistakes made by students in answering the questions/the problems.The population of this study were all third semester students majoring in informatics management at all STMIK in Medan and samples were taken at random and two STMIKs were selected with accreditations B and C. The type of this research was a qualitative descriptive analysis with the instrument was the test of problem solving abilities. This study gave the result that the problem solving process carried out by students through problem-based learning was better than conventional learning, the firs result is the number of students doing the test who obtained a "good" assessment category in the experimental class was more than the control class (Nexperiment = 67 > Ncontrol = 17 ). The second result is the test given as a whole it could be done well by students in accordance with the existing questions/problems, although some still forgot to check the answers. In addition, at every meeting there were group members who werenot active in discussing. They always busy with other things, it caused friends in one group to be disturbed.The results of this study can be used as a reference for teachers who want to implement problem-based learning.
The Effect Of The Problem-Based Learning Model On Students' Mathematical Connection Abilities And Disposition Sirait, Agnes Alfi; Napitupulu, E Elvis; Amry, Zul
Daya Matematis: Jurnal Inovasi Pendidikan Matematika Vol 14, No 1 (2026): Maret (article on progres)
Publisher : Universitas Negeri Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26858/jdm.v14i1.82233

Abstract

The objectives of this study are to analyze: (1) the effect of Problem-Based Learning on students' mathematical connection skills; (2) the effect of the Problem-Based Learning model on students' mathematical dispositions; (3) the interaction between the learning model and KAM on students' mathematical connection skills; (4) the interaction between the learning model and KAM on students' mathematical dispositions. The population in this study consisted of all eighth-grade students at Muhammadiyah 1 Junior High School in Medan, and the sample consisted of eighth-grade students in classes VIII-2 and VIII-3, with two classes (experimental and control) comprising 60 students.  The instruments used consisted of tests of students' mathematical connection abilities and scales of students' mathematical dispositions. The data were analyzed using two-way ANOVA. Based on the results of the analysis, it was found that: (1) there is an effect of the Problem-Based Learning model on students' mathematical connection skills; (2) there is an effect of the Problem-Based Learning model on students' mathematical disposition; (3) there is no interaction between the learning model and initial mathematical ability on students' mathematical connection skills; (4) there is no interaction between the learning model and initial mathematical ability on students' mathematical disposition
Co-Authors Amry, Zul anim anim Hasni Suciawati Nilam Sari Purba, Putri Anggraini RAKIYAH, SITI Rosa, Silvia Septi Sahat Saragih Sirait, Agnes Alfi Sitompul, Pardomuan Situngkir, Desy Agustina