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The Difference of Students’ Mathematical Communication Ability Taught by Cooperative Learning Model Think Talk Write Type and Numbered Head Together Type Meiva Marthaulina Lestari Siahaan; E. Elvis Napitupulu
Scholaria: Jurnal Pendidikan dan Kebudayaan Vol 8 No 3 (2018)
Publisher : Program Studi Pendidikan Guru Sekolah Dasar, Universitas Kristen Satya Wacana

The purpose of this research was to know there was any difference in student’s mathematical communication ability in cooperative learning Think TalkWrite (TTW) type and Numbered Head Together (NHT) type. The population was all students at SMP Negeri 1 Lubuk Pakam. The sample was two classes which each consist of 36 students, VII A as experimental class I which taught by TTW and VII B as experimental class II which taught by NHT. The sample was taken by cluster random sampling. Collecting data technique of this research was mathematical comunication ability essay test that was given in the end of learning either in experimental class I or experimental class II. From the data analysis of each of experimental class were obtained that the average of posttest score in TTW classroom was higher than in NHT classroom. It was also obtained that score of mathematical communication indicators in TTW classroom was higher than in NHT classroom. From the data analysis of posttest score by using t-test with significance level α = 0.05, it was obtained that tcount = 4.687 and ttable = 1.667. It means that tcount > ttable then H0 was rejected and Ha was accepted. So, it can be concluded that there was difference of student’s mathematical communication ability who taught by cooperative learning model type TTW with NHT at SMP Negeri 1 Lubuk Pakam.

THE ROLE OF CONSTRUCTIVISM-BASED LEARNING IN IMPROVING MATHEMATICAL HIGH ORDER THINKING SKILLS OF INDONESIAN STUDENTS Ani Minarni; E. Elvis Napitupulu
Jurnal Infinity Vol 9, No 1 (2020): Volume 9, Number 1, Infinity
Publisher : IKIP Siliwangi and I-MES

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22460/infinity.v9i1.p111-132

To make students actively involved in learning to grasp mathematical higher-order thinking skills (MHOTS) is not easy. Meanwhile, the ability is so important for students to master for it takes place when students continue their studies to a higher level as well as work within a variety of professions, especially in the era of the industrial revolution such nowadays. Many factors affect students' thinking abilities, including learning factors. This study, which implemented constructivism-based learning, aims to investigate the role and contribution of constructivism-based learning approaches as well as mathematical prior knowledge (MPK) to the achievement of MHOTS of middle secondary school students. The data tested through Multivariate Analysis at the 0.05 significance level. In general, this study found that: (1) In the experimental class, the learning approach plays an important role in the way it increased students' MHOTS significantly. (2) The average contribution of constructivism-based learning to MHOTS was at the range of 18% to 57%. (3) Student activity in learning increased significantly. (4) In some cases, there is an effect of interaction between learning factors and MPK towards the achievement of MHOTS. The study recommended the teachers to have courageous in implementing constructivism-based teaching and learning to improve students’ MHOTS.

METAANALISIS PENGARUH MODEL PROBLEM-BASED LEARNING TERHADAP KEMAMPUAN PEMECAHAN MASALAH MATEMATIS DAN SELF-EFFICACY Swandi Wiranata Sinurat; E. Elvis Napitupulu; Mulyono Mulyono
PARADIKMA: JURNAL PENDIDIKAN MATEMATIKA Vol 14, No 2 (2021): PARADIKMA JURNAL PENDIDIKAN MATEMATIKA
Publisher : Study Program of Mathematics Education of Unimed Postgraduate Program

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/paradikma.v14i2.28799

Penelitian ini bertujuan untuk mengetahui: (1) Menganalisis besar pengaruh (effect size) model Problem-based Learning terhadap kemampuan pemecahan masalah matematis siswa; (2) Menganalisis besar pengaruh (effect size) model Problem-based Learning terhadap self-efficacy siswa; (3) Untuk mengetahui metaanalisis pengaruh model Problem-based Learning terhadap kemampuan pemecahan masalah matematis dan self-efficacy siswa. Peneliti memetaanalisis jurnal-jurnal tentang pengaruh model problem-based learning terhadap kemampuan pemecahan masalah matematis dan self-efficacy dengan metode deskriptif kuantitatif. Hasil penelitian menunjukkan bahwa: (1) Dari 14 studi yang memenuhi kriteria untuk dilakukan metaanalisis model pembelajaran problem-based learning dalam meningkatkan kemampuan pemecahan masalah matematis siswa SMP yang memiliki effect size tertinggi adalah dengan nilai 0,92; (2) Dari 9 studi yang memenuhi kriteria untuk dilakukan metaanalisis model pembelajaran problem-based learning dalam meningkatkan self-efficacy siswa SMP yang memiliki effect size tertinggi dengan nilai 0,88; (3) Hasil metaanalisis model pembelajaran terhadap kemampuan pemecahan masalah matematis termasuk pada kategori besar dengan rRE= 0.511 dan hasil metaanalisis model pembeajaran terhadap self-efficacy siswa termasuk pada kategori sedang dengan rRE= 0.382.Kata Kunci: metaanalisis, problem-based learning, self-efficacy

Meta Analisis Pengaruh Model Pembelajaran Terhadap Kemampuan Berpikir Kreatif Matematis Siswa Rizka Nurlina Damanik; Bornok Sinaga; E. Elvis Napitupulu
PARADIKMA: JURNAL PENDIDIKAN MATEMATIKA Vol 14, No 2 (2021): PARADIKMA JURNAL PENDIDIKAN MATEMATIKA
Publisher : Study Program of Mathematics Education of Unimed Postgraduate Program

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/paradikma.v14i2.32365

Penelitian ini bertujuan: (1) Untuk menganalisis besar pengaruh (effect size) dari ragam model pembelajaran terhadap kemampuan berpikir kreatif matematis siswa; (2) Untuk menganalisis model pembelajaran yang dikatakan terbaik untuk dapat meningkatkan kemampuan berpikir kreatif matematis siswa; (3) Untuk menganalisis metaanalisis pengaruh model pembelajaran terhadap kemampuan berpikir kreatif matematis siswa. Penelitian ini menggunakan studi-studi yang telah ada mengenai pengaruh model pembelajaran terhadap kemampuan berpikir kreatif matematis siswa. Penelitian ini merupakan jenis penelitian kuantitatif dengan metode metaanalisis sebagai suatu teknik untuk menggabungkan beberapa hasil penelitian eksperimen. Berdasarkan hasil analisis dari 16 studi, diperoleh hasil yang menunjukkan bahwa: (1)Besar pengaruh ragam model pembelajaran terhadap kemampuan berpikir kreatif matematis siswa tergolong kuat dengan besar 0.455; (2) Studi yang memiliki effect size tertinggi ialah penelitian yang menerapkan Model Project Based Learning dengan nilai effect size sebesar 0.875; (3) Metaanalisis dari 16 studi heterogen dengan besar (Q=50.929; p<0.001) serta tidak terdapat bias publikasi pada studi metaanalisis yang dilakukan dengan nilai p-value ≥ 0.05 pada tes Regression Test for Funnel Plot Asymmetry. Kata Kunci: Metaanalisis, model pembelajaran, kemampuan berpikir kreatif matematis.

ANALISIS KEMAMPUAN BERPIKIR KRITIS SISWA PADA MATERI SPLTV MELALUI MODEL PEMBELAJARAN PROJECT BASE LEARNING (PBL) BERBASIS STEM Ely Syafitri; Sahat Saragih; E. Elvis Napitupulu; Elfira Rahmadani; Dewi Astuti
JURNAL MATHEMATIC PAEDAGOGIC Vol 6, No 2 (2022): Maret 2022
Publisher : Universitas Asahan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36294/jmp.v6i2.2440

AbstractThis study aims to analyze students' critical thinking skills on SPLTV material through a Problem Based Learning model based on Science, Technology, Engineering, and Mathematics (STEM). The type of research used is descriptive qualitative. The research instrument used a test method in the form of critical thinking description questions to analyze the achievement of critical thinking skills and a questionnaire to determine student responses to the implementation of STEM-based PBL on SPLTV material. Research results students have been able to solve problems with a complete score of 73% and reach indicators of critical thinking skills, namely: the ability to generalize, the ability to identify, the ability to formulate problems into mathematical models, the ability to deduce using principles and the ability to provide further explanations. There were 8 students or 27% in the incomplete category and did not reach the indicators of critical thinking skills in working on the questions. Meanwhile, based on the student response questionnaire, it shows that the student response questionnaire with an average percentage of 80.68%, so it can be concluded that students gave a positive response to the implementation of STEM-based PBL learning on SVLTP material with a reliability of 0.82. Student responses at the time of the interview showed that learning with the STEM-based PBL model is a new model and has never been applied by teachers in learning Keywords: Critical Thinking Analysis, STEM-Based PBL, SVLTP AbstrakPenelitian ini bertujuan untuk menganalisis kemampuan berpikir kritis siswa pada materi SPLTV melalui model Problem Based Learning berbasis Science, Technology, Engineering, and Mathematics (STEM). Jenis penelitian yang digunakan adalah kualitatif deskriptif. Instrumen penelitian menggunakan metode tes berupa soal uraian berpikir kritis untuk menganalisis ketercapaian kemampuan berpikir kritis dan angket untuk mengetahui respon siswa terhadap implementasi PBL berbasis STEM pada materi SPLTV. Hasil Penelitian siswa sudah mampu menyelesaikan soal dengan nilai tuntas 73% dan mencapai indikator kemampuan berpikir kritis yaitu : kemampuan menggeneralisasi, kemampuan mengidentifikasi, kemampuan merumuskan masalah ke model matematika, kemampuan mendeduksi dengan menggunakan prinsip dan kemampuan memberikan penjelasan lebih lanjut. Terdapat 8 orang siswa atau 27% dalam kategori tidak tuntas dan tidak mencapai indikator kemampuan berpikir kritis dalam mengerjakan soal. Sementara berdasarkan angket respon siswa menunjukkan bahwa angket respon siswa dengan persentase rata-rata 80,68%, sehingga dapat disimpulkan bahwa siswa memberikan respon positif terhadap implementasi pembelajaran model PBL berbasis STEM pada materi SVLTP dengan reliabititas sebesar 0,82. Tanggapan siswa pada saat wawancara menunjukkan bahwa pembelajaran dengan model PBL berbasis STEM merupakan model yang baru dan belum pernah diterapkan guru pada pembelajaran Kata Kunci : Analisis Berpikir Kritis, PBL Berbasis STEM, SVLTP

Pengembangan Lembar Kerja Peserta Didik Berbasis Problem-Based Learning Untuk Meningkatkan Kemampuan Pemecahan Masalah Matematis Siswa Fadilah Rahmayuni Nasution; E. Elvis Napitupulu
Atmosfer: Jurnal Pendidikan, Bahasa, Sastra, Seni, Budaya, dan Sosial Humaniora Vol. 1 No. 4 (2023): November: Jurnal Pendidikan, Bahasa, Sastra, Seni, Budaya, dan Sosial Humaniora
Publisher : Universitas Palangka Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59024/atmosfer.v1i4.317

This research aims to produce a product in the form of problem-based learning worksheets (LKPD) that is valid, practical, and effective to improve students' mathematical problem solving skills. This research is designed based on the stages of the 4-D development model by Thiagarajan, Semmel, and Semmel which are adapted into 3-D including the stages of define, design, and develop. The subjects in this study were 31 students of grade VII-4 SMP Negeri 2 Percut Sei Tuan. Based on the research that has been conducted, the validity of the developed LKPD obtained an average percentage of assessment of 84.1% by experts with qualifications classified as very valid. Through the LKPD practicality questionnaire by teachers and students, an average percentage of assessment was obtained of 90% by teachers and 93.6% by students with qualifications classified as very practical to be used in the learning process. The implementation of learning with the application of problem-based learning LKPD has been carried out to see the effectiveness of LKPD with assessment references that are determined to obtain results, namely for the completeness of classical learning reaching 83.9%, the achievement of learning objectives is achieved in question points 1, 2, 3, 4, and 5, and the achievement of efficient learning time or does not exceed ordinary learning. From the three references for assessing effectiveness, the LKPD developed is classified as effective. The increasing in mathematical problem solving was in the medium category with an average gain score of 0.60. Based on the research acquisition data, it is concluded that the problem-based learning LKPD developed in this study has met valid, practical, and effective qualifications.

Pengaruh Model Pembelajaran Berbasis Masalah terhadap Kemampuan Pemecahan Masalah Matematika Siswa Kelas VIII SMP Negeri 5 Stabat Dina Aulia Luthfiah; E. Elvis Napitupulu; Hermawan Syahputra
Jurnal Cendekia : Jurnal Pendidikan Matematika Vol 7 No 2 (2023): Jurnal Cendekia: Jurnal Pendidikan Matematika Volume 7 Nomor 2 Tahun 2023
Publisher : Mathematics Education Study Program

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/cendekia.v7i2.2297

Penelitian ini bertujuan untuk menganalisis: (1) perbedaan pengaruh model Pembelajaran Berbasis Masalah dan model Pembelajaran Langsung terhadap kemampuan pemecahan masalah siswa; (2) interaksi antara model pembelajaran dan KAM terhadap kemampuan pemecahan masalah siswa. Penelitian ini merupakan penelitian kuantitatif dengan jenis qausi eksperimental design. Populasi pada penelitian ini yaitu seluruh kelas VIII SMP Negeri 5 Stabat Tahun Pelajaran 2022/2023 dengan jumlah 222 siswa. Uji dilakukan dengan ANAVA Dua Jalur. Hasil penelitian menunjukkan bahwa (1) terdapat perbedaan pengaruh antara model pembelajaran berbasis masalah dan model pembelajaran langsung terhadap kemampuan pemecahan masalah matematika siswa; (2) tidak terdapat interaksi antara kemampuan awal matematika (tinggi, sedang, dan rendah) dan model pembelajaran terhadap kemampuan pemecahan masalah matematika siswa di SMP Negeri 5 Stabat.

The Effect of Problem Based Learning Models on the Mathematical Dispositions of Class VIII Students of SMP Negeri 5 Stabat Dina Aulia Luthfiah; E. Elvis Napitupulu; Hermawan Syahputra
PARADIKMA: JURNAL PENDIDIKAN MATEMATIKA Vol 16, No 2 (2023): PARADIKMA JURNAL PENDIDIKAN MATEMATIKA (July - December 2023)
Publisher : Study Program of Mathematics Education of Unimed Postgraduate Program

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/paradikma.v16i2.48044

The purpose of this research is to investigate: (1) how students' mathematical dispositions differ depending on whether they were taught using a Problem-Based Learning model or an Ordinary Learning model; (2) how the mathematical dispositions of students are affected by the relationship between the learning style and Previous Students' Ability. This study is a quantitative investigation employing procedures that are semi experimental. The instruments of this research are problem solving ability tests and student disposition questionnaires. The participants in this research project are all 222 students enrolled in class VIII at SMP Negeri 5 Stabat during the academic year 2022/2023. There are a total of 222 individuals. The method of sampling utilized for this investigation was a straightforward random sampling method, and the total number of students comprising the sample was calculated using the Issac and Michael formula. Essay examinations and questionnaires were the research tools that were utilized in this investigation. A Two Way ANOVA was utilized in the analysis of the results. The findings of the research indicate the following: (1) the mathematical disposition of students in the class that uses problem-based learning is higher than that of students in the class that uses ordinary learning; (2) there is no interaction between the learning model and early mathematical abilities (high, medium, and low) on students' mathematical dispositions.Keywords: Problem Based Learning, Quasi Experiment, Mathematical Dispositions

THE ROLE OF CONSTRUCTIVISM-BASED LEARNING IN IMPROVING MATHEMATICAL HIGH ORDER THINKING SKILLS OF INDONESIAN STUDENTS Ani Minarni; E. Elvis Napitupulu
Jurnal Infinity Vol 9 No 1 (2020): Volume 9, Number 1, Infinity
Publisher : IKIP Siliwangi and I-MES

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22460/infinity.v9i1.p111-132

To make students actively involved in learning to grasp mathematical higher-order thinking skills (MHOTS) is not easy. Meanwhile, the ability is so important for students to master for it takes place when students continue their studies to a higher level as well as work within a variety of professions, especially in the era of the industrial revolution such nowadays. Many factors affect students' thinking abilities, including learning factors. This study, which implemented constructivism-based learning, aims to investigate the role and contribution of constructivism-based learning approaches as well as mathematical prior knowledge (MPK) to the achievement of MHOTS of middle secondary school students. The data tested through Multivariate Analysis at the 0.05 significance level. In general, this study found that: (1) In the experimental class, the learning approach plays an important role in the way it increased students' MHOTS significantly. (2) The average contribution of constructivism-based learning to MHOTS was at the range of 18% to 57%. (3) Student activity in learning increased significantly. (4) In some cases, there is an effect of interaction between learning factors and MPK towards the achievement of MHOTS. The study recommended the teachers to have courageous in implementing constructivism-based teaching and learning to improve students’ MHOTS.

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