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META-ANALISIS PENGARUH ALQURUN TEACHING MODEL TERHADAP KEMAMPUAN MATEMATIS Sugeng Sutiarso
HISTOGRAM: Jurnal Pendidikan Matematika Vol 4, No 2 (2020): Histogram
Publisher : STKIP Andi Matappa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31100/histogram.v4i2.711

Alqurun Teaching Model (ATM) is a new learning model that has been implemented in several schools (junior and senior high schools). To ensure that ATM has an influence on mathematical ability, a meta-analysis was carried out by calculating the effect size. This descriptive study aims to analyze the effect size of ATM on students' mathematical abilities. The research subjects were 16 research students mathematics education at Faculty Teacher and Training Education, Lampung University. The research data were obtained through observation of 979 students. Data were analyzed descriptively through 3 simultaneous stages, namely (1) identification/coding of data, (2) calculating effect sizes, and (3) interpreting effect sizes according to certain criteria. The results of data analysis show that (1) the overall effect size of ATM on students' mathematical abilities is 1.00 (high) when compared to the problem based learning model of 0.63 (moderate), discovery learning model of 0.76 (moderate), and a project based learning model of 0.63 (moderate), (2) categorically: (i) ATM is predicted to be better implemented at the SMA level than SMP, (ii) ATM is predicted to be better at using LKPD media than teaching materials and PPT media, and (iii) ATM is predicted to provide higher learning outcomes in understanding concepts than communication, representation, and mathematical problem solving. Based on the results of this analysis, it is concluded that ATM can be used as an alternative to the mathematics learning model in the 2013 curriculum

Improving Teachers’ Self-Efficacy through Training: An Impact for the Freedom of Students’ Mathematical Thinking Haninda Bharata; Sugeng Sutiarso
Didaktik Matematika Vol 8, No 1 (2021): Jurnal Didaktik Matematika
Publisher : Universitas Syiah Kuala

Teacher self-efficacy is an important component of teacher competence. At present, efforts to improve teacher competencies have not been carried out simultaneously for teacher activities in the classroom (open class) and outside the classroom (training). This quasi-experimental study aimed to examine the effectiveness of soft skills training and the practice of lesson study on improving mathematics teacher self-efficacy and describe the impact of teacher self-efficacy on the freedom of students' mathematical thinking. The study involved three mathematics teachers and 90 students from three different junior high school regions in Bandar Lampung, Indonesia (city center, semi-urban, and suburban). Data was collected through questionnaire, observation, and interview. The data were then analyzed descriptively. The effectiveness of soft skills training and the practice of lesson study on improving mathematics teachers’ self-efficacy was examined using Wilcoxon Test. The results showed the differences in the average teachers’ self-efficacy before and after participating in soft skills training and the practice of lesson study (with an increase of 0.82/high). The increase in teachers’ self-efficacy also positively affected the freedom of students’ mathematical thinking.

The Ability of Students Mathematical Proof in the Introduction to Group Theory in terms of Gender Differences Sugeng Sutiarso
Jurnal Pendidikan MIPA Vol 20, No 2 (2019): Jurnal Pendidikan MIPA
Publisher : University of Lampung

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

Mathematical proof is one of the mathematical abilities that is very important for students. Until now, most students had difficulty in mathematical proof. The difficulty of this mathematical proof needs to be analyzed the causes, including analysis based on gender differences. This qualitative research aims to describe the ability of mathematical proof based on gender difference. The research subjects were students of mathematics education FKIP Lampung University taking the introduction to group theory in the odd semester of the academic year 2019/2020. Research subjects were 30 people, consisted of 7 men and 23 women. Data was collected through tests and observations, and it were analyzed descriptively based on 3 indicator levels, namely fluency, flexibility, and originality. The results showed that the mathematical proof ability of students were 1.80 (medium); men was 1.43 (medium) and female was 1.87 (medium), and men reach originality. So, it is concluded that the mathematical proof ability of students is medium, women are higher than men in fluency and flexibility, but men are higher than women in originality. Keywords: Mathematical proof, the introduction to group theory, gender differences

KETERLAKSANAAN PENERAPAN PENDEKATAN SAINTIFIK PADA PEMBELAJARAN MATEMATIKA (STUDI KASUS SMP BANDAR LAMPUNG) Sugeng Sutiarso
JURNAL PENDIDIKAN MATEMATIKA UNIVERSITAS LAMPUNG Vol 8, No 2 (2020): JUNI 2020
Publisher : Universitas Lampung

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This descriptive study aims to analyze the implementation of the 2013 curriculum in scientific approach to mathematics learning in junior high school. The subjects of this study were four mathematics’ teacher of junior high school in Bandar Lampung. Research data obtained through observation and interviews. The data of this study were analyzed with descriptive statistics that focus on teaching activities in applying scientific approaches, including preliminary, core, and closing activities. Based on the results of data analysis, it can be concluded that the implementation of scientific approach in mathematical learning is 26.1% (low), consists of 20% preliminary activities (low), 8.3% core activities (low), and 50% closing activities (low).http://dx.doi.org/10.23960/mtk/v8i2.pp57-67

ANALISIS KESULITAN MENYELESAIKAN SOAL MATEMATIKA BERKATEGORI HIGHER ORDER THINKING SKILLS (HOTS) PADA MATERI KELILING DAN LUAS LINGKARAN MENURUT TAHAPAN POLYA Ernawati Ernawati; Sugeng Sutiarso
JPPM (Jurnal Penelitian dan Pembelajaran Matematika) Vol 13, No 2 (2020): JPPM (Jurnal Penelitian dan Pembelajaran Matematika) Volume 13 Nomor 2 Agustus
Publisher : Universitas Sultan Ageng Tirtayasa

ABSTRACTThe purpose of this study is to identify the difficulties faced by students in solving math problems HOTS category subject to circumference and area of the circle. This research is classified into the type of descriptive research with a qualitative approach. In this study thesubjects researchamounted to 165 students, after going through data reduction, the data was focused on 4 students representing high, medium, and low abilities, to precede the process of observing more deeply the process of the problem based on the Polya stage. Data collection techniques in this study were observation, tests, and interviews. In this study, the authors used persistence observation and data triangulation techniques. Based on the results and discussion of the study showed that 63.64% of students had difficulty understanding the problem, 71.52% of students had difficulty thinking of a plan, 80% of students had difficulty implementing the plan, and 84.85% of students had difficulty reviewing. Difficulty factor in solving mathematical problems categorized HOTS in the circumference and area of the circle is that students do not understand what is called a problem, students are not able to absorb information properly, students do not understand the material fully, weaknesses in the concept of prerequisites possessed by students, lack of experience in working HOTS math problems, lack of experience of students in doing story material, and students are not careful and thorough in the process. Keywords: HOTS Problem, Polya theory, circumference and area of circle ABSTRAKTujuan dari penelitian ini adalah untuk mengidentifikasi kesulitan-kesulitan yang dihadapi siswa dalam menyelesaikan soal matematika berkategori HOTS pokok bahasan Keliling dan Luas Lingkaran. Penelitian ini digolongkan dalam jenis penelitian deskriptif dengan pendekatan kualitatif. Dalam penelitian ini subyek penelitiannya berjumlah 165 siswa, setelah melalui reduksi data maka data difokuskan pada 4 siswa yang mewakili kemampuan tinggi, sedang, dan rendah, untuk mendahului proses mengamati lebih dalam pada proses pengerjaan soal berdasarkan tahapan Polya. Teknik pengumpulan data dalam penelitian ini adalah Observasi, tes, dan wawancara. Dalam penelitian ini, penulis menggunakan teknik pengamatan kegigihan dan triangulasi data. Berdasarkan hasil dan pembahasan penelitian menunjukkan bahwa 63,64% siswa mengalami kesulitan mengerti terhadap masalah, 71,52% siswa mengalami kesulitan pemikiran suatu rencana, 80% siswa mengalami kesulitan pelaksanaan rencana, dan 84,85% siswa mengalami kesulitan peninjauan kembali. Faktor kesulitan dalam menyelesaikan soal matematika berkategori HOTS pada materi keliling dan luas lingkaran adalah siswa belum memahami apa yang disebut masalah, siswa tidak mampu menyerap informasi dengan baik, siswa tidak memahami materi sepenuhnya, kelemahan konsep prasyarat yang dimiliki oleh siswa, kurangnya pengalamanoal matematika berkategori HOTS, kurangnya pengalaman siswa dalam mengerjakan materi pelajaran cerita, dan siswa tidak cermat dan teliti dalam proses pengerjaan. Kata Kunci: Soal HOTS, Polya teori, keliling dan luas lingkaran

MENGAPA SULIT MENYELESAIKAN SOAL PECAHAN 2/a+3/b= 2/3 ? Sugeng Sutiarso
AKSIOMA: Jurnal Program Studi Pendidikan Matematika Vol 8, No 3 (2019)
Publisher : UNIVERSITAS MUHAMMADIYAH METRO

Penelitian ini bertujuan untuk mendeskripsikan kemampuan mahasiswa dan guru dalam menyelesaikan soal pecahan, dan mengetahui penyebab sulitnya menyelesaikan soal pecahan tersebut. Subjek penelitian terdiri dari 40 mahasiswa pendidikan matematika dan 30 guru matematika yang berasal dari kota/kabupaten di Propinsi Lampung. Data penelitian dikumpulkan melalui tes dan wawancara. Wawancara dilakukan untuk melengkapi data tentang penyebab sulitnya menyelesaikan masalah pecahan. Data penelitian dianalisis secara deskriftif. Hasil penelitian menyimpulkan bahwa (1) kemampuan mahasiswa dan guru dalam menyelesaikan soal pecahan berada pada level kurang, cukup, dan baik, dan (2) penyebab sulitnya mahasiswa dan guru menyelesaikan soal pecahan tersebut adalah sulitnya menyelesaikan soal dengan variabel lebih banyak daripada persamaan, memisahkan variabel x dan y pada sisi berbeda, dan tidak mendapatkan solusi bulat (real/imaginer). Selain itu, diperoleh temuan penting pada penelitian ini, yaitu masih kelemahan/kekurangan dalam memodifikasi bentuk aljabar, mencari berbagai alternatif penyelesaian soal, dan memisahkan dua variabel (x dan y). Kepada mahasiswa dan guru disarankan memahami konsep dan operasi pecahan lagi, serta melatih diri untuk kritis dan kreatif menyelesaikan soal pecahan. AbstractThis study aims to describe the ability of students and teachers to solve fraction problems, and find out why students or teachers are difficult to solve these problems. The research subjects consisted of 40 mathematics education students and 30 mathematics teachers from cities/districts in Lampung Province. Research data were collected through tests and interviews. Interview to complete the difficulty of solving the problem of fraction. The research data were analyzed descriptively. The results of the study concluded that (1) the ability of students and teachers to solve fraction questions is at a level that is lacking, sufficient, and good, and (2) the reason why it is difficult for students and teachers to solve the fraction problem is the difficulty of solving problems with more variables than quations,separating variables x and y on different sides, and not getting a round solution (real/imaginer). In addition, important findings obtained in this study, namely still weaknesses / deficiencies in modifying the form of algebra, looking for various alternative solutions to the problem, and separating the two variables (x and y). For students and teachers are advised to understand fraction concepts and operations again, and train themselves to critically and creatively solve fraction problems.

Analysis of Student Reversible Thinking Skills on Graph Concept Sugeng Sutiarso
Indonesian Journal of Science and Mathematics Education Vol 3, No 2 (2020): Indonesian Journal of Science and Mathematics Education
Publisher : Universitas Islam Negeri Raden Intan Lampung

The ability of reversible thinking in mathematics has less attention, but most of the mathematical subject is reversible. This type of research was qualitative descriptive which aimed to analyze student’s reversible thinking skills on the graph concept. The subject of research were students of mathematics education, Faculty of Teacher Training and Education, Lampung University taking the graph theory in the academic year 2019/2020. Research subjects were 40 people selected by the total sampling technique. The research data was collected through tests, namely the question of Ramsey number. Data were analyzed descriptively with 3 stages, namely data reduction, data display, and conclusion. The results showed that 42.5% of students had reversible thinking skills and 57.5% of students did not have them. Based on the results of this study, it was concluded that most students did not have reversible thinking skills on graph concepts.

Analysis of Students' Thinking Ability in Discovery Learning-Based Worksheets to Improve Mathematical Problem-Solving Ability Eva Fitriani Sari; Sugeng Sutiarso; Sri Hastuti Noer
Numerical: Jurnal Matematika dan Pendidikan Matematika Vol. 7 No. 1 (2023)
Publisher : Institut Agama Islam Ma'arif NU (IAIMNU) Metro Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25217/numerical.v7i1.3147

Problem-solving ability is essential in the process of learning mathematics. Looking at students' mathematical problem-solving abilities, which can be seen from the learning outcomes, are still less than the expected average. One of the efforts that can be made to improve students' problem-solving skills is to develop Discovery Learning-based worksheets. This study analysed students' thinking skills to improve their mathematical problem-solving abilities. This study uses a qualitative approach with a case study method that emphasizes real cases. This research was conducted on SMP Negeri 6 Metro class VII students on Quadrilaterals. The research used a purposive sampling technique to study as many as 26 students as subjects. The data analysis process was carried out by describing the results of the analysis of answers in writing and showed the ability to write systematic problem-solving procedures. The study results in show that the developed LKPD is very valid; it can be seen that: (1) the achieving results the high category in the application of the Discovery Learning model, (2) the score of each aspect of problem-solving in mathematics has increased, (3) the final test average score has increased, and (4) the score of each problem-solving indicator in mathematics has increased. This can be seen based on the test, and the results show a significant difference between the average increase in learning outcomes in the experimental class using discovery learning-based worksheets and the control class that does not use discovery learning-based worksheets. So it can be concluded that the developed LKPD based on discovery learning is valid, practical, and effective for improving students' mathematical problem-solving abilities.

Development of ScÄ±entÄ±fÄ±c-Based LKPD to Improve Students' Problem-SolvÄ±ng AbÄ±lÄ±ty Lisnawati; Sugeng Sutiarso; Nur Hanurawati; Choirudin; Rani Damayanti
Jurnal Pendidikan Matematika (JPM) Vol 9 No 1 (2023): Jurnal Pendidikan Matematika (JPM)
Publisher : Pendidikan Matematika, FKIP, Universitas Islam Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33474/jpm.v9i1.20136

This study aims to determine the process and results of developing scientific-based mathematics learning worksheets that meet valid and practical criteria and test the developed worksheets' validity, practicality, and effectiveness. This research and development refer to the steps of Borg and Gall. The research subjects were grade VIII students of the Qur'an Science Middle School Minhajuth Thullab Pekalongan for the 2022/2023 academic year: data collection techniques using interviews, problem-solving ability tests, and questionnaires. The results showed that the LKPD teaching materials developed were categorized as valid (fit for use) based on the assessment of media and material expert validators. In addition, the developed scientific-based LKPD is also categorized as practical based on student assessments and responses from the mathematics teacher. Based on hypothesis testing and proportions, the scientific-based LKPD can improve problem-solving skills, but it is not yet effective because the proportion of students with good category problem-solving abilities is not more than 60% of the total number of students.

Problem solving ability: The impact of student worksheets based on problem-based learning models on set material in junior high school Thitra Padma Rani; Sugeng Sutiarso
Desimal: Jurnal Matematika Vol 6, No 2 (2023): Desimal: Jurnal Matematika
Publisher : Universitas Islam Negeri Raden Intan Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24042/djm.v6i2.17071

The problem in this study is related to the less optimal ability to solve students' mathematical problems. Therefore, the purpose of this study was to find out and analyze the average difference in the ability to solve mathematical problems between students who apply the PBL model assisted by worksheets and those who apply the conventional learning model at one of the junior high schools in Tulang Bawang district. This study uses a quasi-experimental method. Samples were taken using the Cluster Random Sampling technique with a lottery procedure. The instrument in this study was an essay test. Hypothesis testing using t-test: prior to testing the hypothesis, prerequisite tests were first carried out, namely the normality test and homogeneity test. From the results of the hypothesis testing, it can be concluded that the application of the PBL model with the help of student worksheets can improve students' mathematical problem-solving abilities. Worksheets made with PBL syntax can facilitate and improve students' problem-solving abilities. This can be seen in the increase in the average value of the class that applies the PBL model

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