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All Journal Paradikma: Jurnal Pendidikan Matematika AKSIOMA: Jurnal Program Studi Pendidikan Matematika Jurnal Cendekia : Jurnal Pendidikan Matematika Formosa Journal of Multidisciplinary Research (FJMR) Formosa Journal of Science and Technology (FJST) Proceeding of International Conference on Multidisciplinary Research
Elvis Napitupulu
Universitas Negeri Medan
Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Education Engineering Industrial & Manufacturing Engineering Mathematics Public Health Social Sciences Other

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Journal : Formosa Journal of Science and Technology (FJST)

 1 
Pengaruh Konsentrasi Belajar terhadap Kemampuan Pemecahan Masalah Matematis Siswa Dewi Sartika Simorangkir; Elvis Napitupulu
Formosa Journal of Science and Technology Vol. 1 No. 6 (2022): October 2022
Publisher : PT FORMOSA CENDEKIA GLOBAL

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55927/fjst.v1i6.1597

Abstract

Penelitian ini bertujuan untuk mengetahui pengaruh konsentrasi belajar terhadap kemampuan pemecahan masalah matematis siswa. Populasi penelitian sebanyak 13 kelas dan sampel sebanyak 3 kelas menggunakan teknik purposive sampling. Masing-masing sampel diberikan model yang berbeda, yaitu kelas VII-A menggunakan model pembelajaran konvensional, VII-B menggunakan model pembelajaran berbasis masalah dengan teknik pomodoro dan VII-C menggunakan model pembelajaran berbasis masalah. Instrumen yang digunakan yakni tes uraian kemampuan pemecahan masalah matematis siswa dan angket konsentrasi belajar siswa. Data  dianalisis menggunakan uji asumsi klasik dan regresi linear sederhana. Hasil yang diperoleh menunjukkan bahwa konsentrasi belajar memberikan pengaruh positif terhadap kemampuan pemecahan masalah matematis siswa meskipun diajarkan menggunakan model pembelajaran yang berbeda, hanya saja konsentrasi belajar bukanlah faktor terbesar yang mempengaruhi kemampuan pemecahan masalah matematis siswa.  
The Effect of the Two Stay Two Stray Cooperative Learning Model on the Mathematical Communication Ability of Junior High School Students Hendrawan Purba; Elvis Napitupulu
Formosa Journal of Science and Technology Vol. 2 No. 1 (2023): January, 2023
Publisher : PT FORMOSA CENDEKIA GLOBAL

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55927/fjst.v2i1.2633

Abstract

This study aims to (1) find out whether the Two Stay Two Stray learning model influences the mathematical communication skills of class VIII students of SMP Swasta Katolik Budi Murni 2 Medan. The type of research used in this study is a Quasi Experiment or quasi-experiment with the Pretest-Posttest Control Group Design research design. Based on the output, the significance value of 2-tailed Equal variances assumed is 0.035. Where 0.035 <0.05, based on the test criteria, H0 is rejected or accepted Ha, which means that there is an influence of the Two Stay Two Stray cooperative learning model on students' mathematical communication abilities. After that the results of the Mean posttest showed that the Mean posttest for the experimental class was 74.34 while the Mean Posttest for the control class was 68.75, where 74.34 > 68.75. This means that the mathematical communication ability of the experimental class is higher than that of the control class. Based on the research results, it is hoped that teachers can apply the TSTS type cooperative learning model to improve students' mathematical communication skills.
Co-Authors Adrina Fauza Asmin Asmin Dewi Sartika Simorangkir Dini Rahmadani Dwigita Melani Christina Limbong Edi Syahputra Fahrum Nisa Rani Fairus, Fairus Fatma Erya Santoso Hasratuddin Siregar Hendrawan Purba Liza Fitria Mukhtar Mukhtar mulyono mulyono Nerli Khairani Pardomuan Sitompul Pargaulan Siagian Rezki Yanti Riezky Purnama Sari Rismalyah Manalu Rosmawaty Simatupang Sahat Saragih Siti Maysarah Wahidah Amalia Zul Amry