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All Journal Jurnal Infinity P2M STKIP Siliwangi Al Khawarizmi: Jurnal Pendidikan dan Pembelajaran Matematika PRISMA ABDIMAS SILIWANGI Journal on Education FIBONACCI: Jurnal Pendidikan Matematika dan Matematika M A T H L I N E : Jurnal Matematika dan Pendidikan Matematika JPMI (Jurnal Pembelajaran Matematika Inovatif) (JIML) JOURNAL OF INNOVATIVE MATHEMATICS LEARNING Risenologi Jurnal Padegogik Mosharafa: Jurnal Pendidikan Matematika JES-MAT (Jurnal Edukasi dan Sains Matematika) Jurnal Pengabdian Sains dan Humaniora Hexagon: Jurnal Ilmu dan Pendidikan Matematika Jurnal Infinity
Masta Hutajulu
IKIP Siliwangi
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Analysis of Mathematical Critical Thinking Skills using Problem-Based Learning Models in Junior High School Students Aritonang, Paulani Sucahya Br; Hutajulu, Masta; Purwasih, Ratni
(JIML) JOURNAL OF INNOVATIVE MATHEMATICS LEARNING Vol. 7 No. 2 (2024): VOLUME 7 NUMBER 2, JUNE 2024
Publisher : IKIP Siliwangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22460/jiml.v7i2.19658

Abstract

The ability to think critically is currently one of the abilities that students need to have because with the ability to think critically in students can improve the quality of education in Indonesia, with this statement this research was conducted with the aim of describing the critical thinking skills of junior high school students using a problem-based learning model on quadratic equation material. This type of research is in the form of descriptive research with qualitative methods. This research was located at SMPN 3 Cimahi with 9 subjects who had high, medium and low abilities in critical thinking covering 3 classes. The data collection technique was carried out by providing 4 description questions and interviews to the subjects. Data analysis techniques in research refer to qualitative data analysis according to Miles and Huberman. The results of the study were measured based on indicators of critical thinking skills according to Facion (2015) where, 67% of students were able to interpret, 58% of students were able to analyze, 72% of students were able to evaluate, and 69% of students were able to infer so that it could be concluded that there was a significant influence of the problem-based learning model on critical thinking skills.
Improving Students' Mathematical Understanding Ability Through Canva Assisted Problem-Based Learning Model on Straight Line Equations Nurfalah, Ilma; Supardi, Alfi Fani; Al Mawaddah, Azkia Mudrikah; Silviani, Rina; Sunaryo, Pranestya Rachmaeny; Hutajulu, Masta
Al-Khawarizmi Vol 7, No 2 (2023): Al Khawarizmi: Jurnal Pendidikan dan Pembelajaran Matematika
Publisher : Universitas Islam Negeri Ar-Raniry Banda Aceh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22373/jppm.v7i2.16547

Abstract

This study aims to determine whether there is an increase in students' mathematical understanding if learning is carried out using the scientific method compared to problem-based learning methods on straight line equations material. This research was conducted at SMP Negeri 5 Cimahi. This study uses a quantitative and descriptive qualitative approach. Learning outcomes data is used as a parameter to measure the increase in mathematical understanding ability. The results showed an increase in students' mathematical understanding abilities when learning using problem-based learning methods increased by 18% compared to scientific methods.
PENGARUH MODEL PROBLEM BASED LEARNING TERHADAP KEMAMPUAN PEMECAHAN MASALAH MATEMATIS DAN SELF EFFICACY PESERTA DIDIK SMP KELAS VII Hermawan, Deni; Hutajulu, Masta
FIBONACCI: Jurnal Pendidikan Matematika dan Matematika Vol 10, No 1 (2024): FIBONACCI: Jurnal Pendidikan Matematika dan Matematika
Publisher : Fakultas Ilmu Pendidikan Universitas Muhammadiyah Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24853/fbc.10.1.131-140

Abstract

Penelitian ini bertujuan untuk mengetahui pengaruh model Problem Based Learning (PBL) terhadap kemampuan pemecahan masalah matematis dan self-efficacy peserta didik SMP. Penelitian ini dilaksanakan di SMPN 2 Cimahi Kota Cimahi. Metode penelitian ini adalah metode eksperimen Posttest-Only Control Design. Sampel penelitian ini  kelas VII L sebagai kelas eksperimen yang berjumlah 30 orang peserta didik dan untuk kelas VII K sebagai kelas kontrol berjumlah 30 peserta didik. Instrument yang digunakan adalah tes  kemampuan pemecahan masalah matematis dan angket self-efficacy. Teknik analisis data yang digunakan adalah uji t. , Hasil pengolahan data kemampuan pemecahan masalah matematis peserta didik dilihat dari output sig (2-tailed) yaitu sebesar 0,127 > 0,05 maka  H0 diterima. Hasil pengolahan data kemampuan Self-Efficacy peserta didik mendapatkan nilai signifikansi sebesar 0,078 > 0,05 maka  H0 diterima. Dari penelitian ini dapat disimpulkan bahwa kemampuan pemecahan masalah matematis peserta didik pada kelas eksperimen yang menggunakan model Problem Based Learning tidak lebih baik atau sama dengan dari pada kelas kontrol yang menggunakan model pembelajaran biasa. Kemampuan Self-Effiaccy peserta didik pada kelas eksperimen yang menggunakan model Problem Based Learning tidak lebih baik atau sama dengan dari pada kelas kontrol yang menggunakan model pembelajaran biasa, hal ini terjadi dikarnakan peserta didik masih dalam tahap transisi dari yang sebelumnya terbiasa diberikan model pembelajaran konvensional yang sekarang beralih ke pembelajaran interaktif yang berpusat kepada peserta didik.
METODE ESD (EXTREME STUDENTIZED DEVIATION) UNTUK PENGUJIAN MULTIPLE OUTLIERS Masta Hutajulu
Jurnal Infinity Vol 4 No 1 (2015): Jurnal Infinity Vol 4 No 1, Februari 2015
Publisher : IKIP Siliwangi and I-MES

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22460/infinity.v4i1.p47-54

Abstract

ABSTRAK Analisis data pada suatu proses produksi merupakan hal yang esensial untuk dilakukan. Data yang valid menjadikan data tersebut baik. Salah satu ciri data yang baik adalah terhindar dari pencilan (outliers). Untuk mendeteksi pencilan (outlier) yang terdapat pada suatu data diperlukan suatu metode, yang antara lain melalui metode ESD. Metode ESD dapat mendeteksi pencilan tunggal (single  outliers) ataupun pencilan ganda (multiple outliers). Konsep utama dari metode ini, adalah mengukur jarak setiap data terhadap mean sampelnya. Kata Kunci    :   Metode ESD, pencilan  ABSTRACTData analyse of a production process is an essential part. The accuracy of the data analyse depends on the validaty of the data. One indicator of valid data is evitable from outliers. It requires certain method to examine the outliers  from data to decide whether the data is valid or not. ESD method is the recommended method, which will be studied throughly in this final refort. ESD method is a method that is able to detect single outlier as well as multiple outliers. The main concept of the method is measuring the difference of each data to the mean of its sample. Keywords:        Outlier, ESD Method
THE EFFECT OF MATHEMATICAL DISPOSITION AND LEARNING MOTIVATION ON PROBLEM SOLVING: AN ANALYSIS Masta Hutajulu; Tommy Tanu Wijaya; Wahyu Hidayat
Jurnal Infinity Vol 8 No 2 (2019): Volume 8 Number 2, Infinity
Publisher : IKIP Siliwangi and I-MES

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22460/infinity.v8i2.p229-238

Abstract

This research was motivated by the low problem solving abilities, mathematical disposition and learning motivation of junior students. This study aims to find and analyze empirically the influence of mathematical dispositions and learning motivation on problem solving abilities. Samples were obtained in class VII-2 at SMPN 2 Cimahi as many as 34 students.  Study uses correlational quantitative methods. Analysis was done by regression method. The data collection was given 2 pieces of study instruments, namely problem solving test instruments and non-test questionnaires in a set of mathematical dispositions and learning motivation. The data was tested for regression and correlation. The results of data analysis that was mathematical disposition and larning motivation were significantly influenced by problem solving ability of junior students, with the regression equation  indicating a positive influence, and the degree of closeness is the Pearson correlation coefficient of 0.827 classified in a strong positive interpretation. Together, mathematical disposition variables and learning motivation variables can determine the problem solving variable by 68.3%. Recommendations from this study, teachers should design learning processes that can improve mathematical disposition and student motivation so that students' problem solving abilities increase.
Comparison of Student Learning Outcomes Using Class Action Research To Improve Mathematics Problem Solving Ability Hutajulu, Masta; Sofiah, Andita Aulia; Rustella, Friska; Syahpitri, Dita; Putri, Adisha Savira Rudiana; Harianti, Ayu
Mathline : Jurnal Matematika dan Pendidikan Matematika Vol. 8 No. 2 (2023): Mathline: Jurnal Matematika dan Pendidikan Matematika
Publisher : Universitas Wiralodra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31943/mathline.v8i2.374

Abstract

This study aims to determine the comparison of student learning outcomes using a scientific approach and learning model Problem Based Learning. This type of research uses the Classroom Action Research (CAR) method or can be referred to as (Classroom action research) and mix methods (Quantitative and Qualitative). The subject of this study was located at SMP Negeri 3 Cimahi in class VIII-I with a total of 34 students. Data collection techniques with pre-test and post-test. The results showed that there were differences in mathematical problem solving abilities between students who used a scientific approach and students who used the Problem Based Learning learning model. The results showed that the application of the Problem Based Learning model could improve students' mathematical problem solving abilities from cycle I to cycle 2 by 10%. The results of the research show that the Problem Based Learning (PBL) model can improve problem solving abilities in the material on the System of Two Variable Linear Equations (SPLDV). This research can be concluded that the ability to solve problems in SPLDV material can be increased by applying the problem based learning model.
Peningkatan kemampuan komunikasi matematis dengan model project based learning berbantuan geogebra: Solusi inovatif pendidikan modern Lismayanti, Neng; Hutajulu, Masta; Linda, Linda
JPMI (Jurnal Pembelajaran Matematika Inovatif) Vol. 7 No. 6 (2024): JPMI
Publisher : IKIP Siliwangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22460/jpmi.v7i6.25267

Abstract

This study aims to research the improvement of students' mathematical communication skills through the application of a project-based learning model supported by geogebra and conventional learning. The research method used is a quasi-experimental method with a non-equivalent control group design. The sample in the study was class VIII A with a total of 30 students and Class VIII B with a total of 30 students and the sample selection was not carried out randomly. The research instruments used for tests and non-tests are mathematical communication skills tests in the form of descriptions of 6 questions and questionnaires of student responses to the stages of the project-based learning model. This research procedure includes three main phases: preparation, implementation, and evaluation.  The data processing technique uses two independent sample tests with the help of SPSS version 25. The results of this study indicate that the mathematical communication skills of students who use the project-based learning model with the help of geogebra increase significantly compared to conventional learning.
Teachers’ Training in Designing Mathematics Literacy Questions at SMP and SMK Putra Juang Cianjur Hutajulu, Masta; Sugandi, Asep Ikin
Jurnal Pengabdian Sains dan Humaniora Vol. 4 No. 1 (2025): 2025 May Edition
Publisher : Fakultas Keguruan dan Ilmu Pendidikan-Universitas Timor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32938/jpsh.v4i1.9554

Abstract

This community service activity aims to enhance the competence of teachers at SMP and SMK Putra Juang in designing mathematics literacy questions aligned with the demands of the Merdeka Curriculum and the national assessment. The training was initiated due to the teachers’ limited understanding of the characteristics of mathematics literacy questions, which emphasisis on critical thinking skills, contextual problem-solving, and conceptual interconnections. The activity was implemented using a participatory approach through workshops, group discussions, and intensive mentoring. The results of the activity indicate an improvement in teachers' ability to develop questions with relevant contexts, diverse representations, and appropriate competency indicators. Furthermore, this activity had a positive impact on teachers’ preparedness for the national assessment and the implementation of literacy-based learning. Based on these findings, this article recommends the continuation of similar training programs as part of efforts to support teachers’ competence development.
Analysis of Mathematics Teaching Efficacy Belief of Prospective Mathematics Teachers Saija, Louise M; Hutajulu, Masta
(JIML) JOURNAL OF INNOVATIVE MATHEMATICS LEARNING Vol. 8 No. 2 (2025): VOLUME 8 NUMBER 2, JUNE 2025
Publisher : IKIP Siliwangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22460/jiml.v8i3.27100

Abstract

Mathematics is a fundamental subject that plays a crucial role in students’ academic development, thus requiring competent teachers to effectively deliver mathematical concepts. One factor influencing teacher competence is mathematics teaching efficacy belief, which reflects a teacher’s confidence in their ability to teach mathematics successfully. This study aims to describe the mathematics teaching efficacy beliefs, among prospective mathematics teachers in West Java, Indonesia.   The research involved 55 undergraduate students majoring in mathematics education from various universities in West Java. The instrument used to collect data was the Mathematics Teaching Efficacy Belief Instrument (MTEBI), originally developed by (Enochs et al., 2000) and translated into the Indonesian language. The MTEBI consists of two sub scales: Personal Mathematics Teaching Efficacy (PMTE) and Mathematics Teaching Outcome Expectancy (MTOE). Descriptive quantitative analysis was conducted to categorize students' efficacy beliefs. The results show that, on average, prospective mathematics teachers in West Java exhibit a high level of mathematics teaching efficacy belief. Most of them fall into the high category for PMTE, with none categorized as low. Additionally, nearly all participants scored high in MTOE, with mean scores higher than those in the PMTE dimension. These findings suggest that prospective mathematics teachers generally possess strong confidence in their teaching abilities and believe in the positive outcomes of their teaching efforts. This highlights the potential readiness of these future educators to effectively teach mathematics.
ANALISIS PEMBELAJARAN MENGGUNAKAN PENDEKATAN SAINTIFIK DAN DISCOVERY LEARNING BERBANTUAN CANVA TERHADAP KEMAMPUAN PEMECAHAN MASALAH PADA MATERI TRANSFORMASI GEOMETRI KELAS IX Hutajulu, Masta; Agustiana, Wina; Ningrum, Nadia Putri Ayu; Yulianti, Vivian; Sucahya Br Aritonang, Paulani; Rahayu, Dewi Sintia
Jurnal Edukasi dan Sains Matematika (JES-MAT) Vol. 9 No. 1 (2023): Jurnal Edukasi dan Sains Matematika (JES-MAT)
Publisher : Department of Mathematics Education, Universitas Kuningan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25134/jes-mat.v9i1.7404

Abstract

Penelitian ini bertujuan untuk membandingkan hasil belajar siswa ketika menggunakan pendekatan saintifik dan model pembelajaran Discovery learning berbantuan canva, khususnya dalam materi transformasi geometri. Metode penelitian yang digunakan adalah metode deskriptif kuantitatif dengan memberikan soal tes mengenai materi transformasi geometri. Subjek PDA penelitian ini ialah siswa kelas IX D di SMP Negeri 3 Cimahi yang berjumlah 38 siswa. Data yang diperoleh selanjutnya diolah dengan menggunakan Microsoft Excel. Hasil penelitian menunjukkan bahwa rata-rata hasil belajar siswa yang mulanya 65 meningkat menjadi 76.
Co-Authors Adi Nurjaman Aflich Yusnita Fitrianna Agung Nugraha Agustiana, Wina Ahmad Hasya Al Hafizh Al Mawaddah, Azkia Mudrikah Angela Marentina Simarmata Aritonang, Paulani Sucahya Br Asep Ikin Sugandi Asri Adi Putri Cindy Noviani Deni Hermawan Diana Wijayanti Diana Wijayanti, Diana Eka Senjayawati Eko Hendi Prabowo Epul Saepudin Eriska Sonia Eva Dwi Minarti Eva Dwi Minarti Eva Dwi Minarti, Eva Dwi Fadly Samsudin Fitriani, Zulfa Dasti Gida Kadarisma Hani, Enur Harianti, Ayu Heris Hendriana Heris Hendriana Heris Herdiana Ifat Fatimah Zahro Ika Wahyu Anita Kadarisma, Gida Linda Linda Lismayanti, Neng Louise M Saija Luvy Sylviana Zanthy M Alviyan Mudzaqi M. Rizky Hadi Wibowo Marchasan Lexbin E.J.R Maulida, Nurpradesa Mulyana, Irpan Ningrum, Nadia Putri Ayu Nirwati Angela Al Ghani Nur Suryanah Nurfalah, Ilma Nurhidayah, Nita Nurpradesa Maulida Pertiwi, Citra Megiana Puji Nurfauziah Putri, Adisha Savira Rudiana Putri, Asri Adi R. Mekar Ismayani Rahayu, Dewi Sintia Ratni Purwasih, Ratni Rindawanti, Wulan Riosanddy Narazetha Rosi Oktavia Rustella, Friska Seni Nuryanti Silviani, Rina Siti Chotimah Sofiah, Andita Aulia Sucahya Br Aritonang, Paulani Sunaryo, Pranestya Rachmaeny Supardi, Alfi Fani Syahpitri, Dita Tommy Tanu Wijaya Wahyu Hidayat Wulan Rindawanti Yulianti, Vivian Zulfa Dasti Fitriani