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Logaritma : Jurnal Ilmu-ilmu Pendidikan dan Sains
Published by Institut Agama Islam Negeri Padangsidimpuan
ISSN : 23388706     EISSN : 25807145     DOI : 10.24952
Core Subject : Science, Education,
Decision Sciences, Operations Research & Management Education Mathematics
Logaritma: Jurnal Ilmu-ilmu Pendidikan dan Sains are journal containing the results of research and discussion in the field of education including education and teaching, learning strategies, curriculum, teaching media, learning methods, learning techniques, algebra, calculus, and mathematical problem solving. This scientific journal is a periodical journal published by the Jurusan Tadris Matematika FTIK IAIN Padangsidimpuan every June and December (2 editions per year). The contents are author’s responsibility.
Arjuna Subject : Matematika - Matematika (Lain-Lain)
Articles 150 Documents
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Analisis terhadap Kesulitan Belajar Mahasiswa Teknik Informatika pada Mata Kuliah Kalkulus Welly Desriyati; Hanifatul Rahmi
Logaritma : Jurnal Ilmu-ilmu Pendidikan dan Sains Vol 9, No 01 (2021)
Publisher : UIN Syekh Ali Hasan Ahmad Addary Padangsidimpuan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24952/logaritma.v9i01.2804

Abstract

This article was a qualitative research with using phenomenology approach. The researchers were the main research instruments in this study in order to analyze the type of informatics engineering studenet’s learning obstacles in calculus subject, its causative factors and the ways to overcome the students’ learning obstacles. Researcher as the lecturer used test, questionnaire, observation sheet and interview technique to collect the data. The subject of this study was 47 students of informatics engineering study programme, while the object of this study was the students’ learning obstacles. According to the data analysis results, the findings of this study are: (1) the type of informatics engineering studenet’s learning obstacles in calculus subject are in the principle, concept, operation and fact; (2) the causative factors of informatics engineering students’ learning obstacles in calculus subject are: less using of learning media, using incorrect methods, less of study needs, the lowerness of students’ intelligence, the lowerness of students’ motivation in learning mathematics and the lowerness of students’ prior mathematical knowledge; and (3) to overcome the informatics engineering students’ learning obstacles in calculus subjectare: rearrange learning schedule at home, give guidance to the students, using variatif methods, using clear learning methods and multiplicate the supportive learning facilities. 
Pengaruh Penerapan Model Pembelajaran Kooperatif Tipe Roundtable terhadap Hasil Belajar Matematika Eka Anjarwati; Suparni Suparni; Rahma Hayati Siregar
Logaritma : Jurnal Ilmu-ilmu Pendidikan dan Sains Vol 9, No 02 (2021)
Publisher : UIN Syekh Ali Hasan Ahmad Addary Padangsidimpuan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24952/logaritma.v9i02.6038

Abstract

This research is motivated by the lowlearning outcomes of students, because the learning process at school still uses conventional learning models. Mathematics learning tends to be teacher-centered, resulting in students being less active in the learning process. Therefore, the researchers conducted research on the Round Table type of cooperative learning model that can affect students mathmatics learning outcomes.The formulation of the problem in this study is whether there is a significant influence of the Round Table type of coopetive learning model on students mathematics learning outcomes in the trigonometry material of Tenth Graders of SMA Negeri 2 Padang Bolak. The purpose of this study was to determine the significant influence of the Round Table type of coopetive learning model on students mathematics learning outcomes in the trigonometry material of Tenth Graders of SMA Negeri 2 Padang Bolak.This research is a quantitative study using experimental methods with the research design is non random contol group pre test post test design. The population in this study were Tenth Grade of SMA Negeri 2 Padang Bolak which consisted of three classes with a total of 79 students. The sampel in the experimental class that was given treatment amounted to 27 students and the control class that was not given treatment amounted to 25 students. Data processing and data analysis was carried out using the T-test.The result of the T-test obtainedthe average value of the experimental clas after the Round Table type of coopetive learning model was applied to the results of the pre test to the post test, which was 68,89 to 75,741. While in the control class the results of the pre test to the post test, which was 65 to 71,8. Based on the results of hypothesis testing obtained thitung ttabel (2,1758 2,008) with a significance level 5% and dk = 50, then H0 is rejected and Ha is accepted. Thus, it can be concluded that there is a significant influence of the Round Table type of coopetive learning model on students mathematics learning outcomes in the trigonometry material of Tenth Graders of SMA Negeri 2 Padang Bolak.
Pengembangan Buku Ajar Statistik Menggunakan Aplikasi SPSS sebagai Self-¬Education Mahasiswa Sufri Sufri; Feri Tiona Pasaribu
Logaritma : Jurnal Ilmu-ilmu Pendidikan dan Sains Vol 9, No 01 (2021)
Publisher : UIN Syekh Ali Hasan Ahmad Addary Padangsidimpuan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24952/logaritma.v9i01.2838

Abstract

The purpose of this research is to produce statistical textbooks using the SPSS (Statistical Product and Service Solution) application as self-education for students who meet the criteria of validity, practicality and effectiveness. This research is a development research that uses the ADDIE development model which implements an Analyze, Design, Develop, Implement, and Evaluate stage. The results obtained in this study are the quality of textbook development results from the results of material validation analysis with a percentage of 90%, design validation analysis with a percentage of 88.9% fulfilling very valid criteria. The results of the questionnaire analysis show that the textbook meets the very practical criteria. Based on the results of the analysis of the lecturer assessment questionnaire with a percentage of 90%, the results of the small group trial questionnaire analysis with a percentage of 79.50%. Thus, statistical textbooks using the SPSS (Statistical Product and Service Solution) application meet the valid and practical criteria.
Penerapan Pendekatan Matematika Realistik untuk Meningkatkan Kemampuan Komunikasi Matematis Rodiana Lubis; Safaten Sudoh
Logaritma : Jurnal Ilmu-ilmu Pendidikan dan Sains Vol 9, No 02 (2021)
Publisher : UIN Syekh Ali Hasan Ahmad Addary Padangsidimpuan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24952/logaritma.v9i02.6244

Abstract

This study aims to improve students’ mathematical communication skills, especially in integerarithmetic operations using the Realistic Mathematics Education (PMR) approach in Class VII-1 Madrasah Tsanawiyah Swasta Baharuddin Janjimauli Muaratais, Angkola Muaratais District. The type of research used is Classroom Action Research (CAR) using two cycles, and each cycle has 2 meetings. The subjects of this study were students of class VII-1 Madrasah Tsanawiyah Swasta Baharuddin Janjimauli Muaratais, Angkola Muaratais District which consisted of 14 male students and 9 female students. Based on the data from the research conducted, it was obtained the results of increasing students' mathematical communication skills in writing through tests. The results showed that the initial test of the number of students who completed was 7 students with a percentage of 30.43%. After implementing the realistic mathematical approach, there was an increase in students' mathematical communication skills at each meeting. Cycle I meeting 1 average of students who completed 66.08 with a percentage of completeness 43.47%, cycle I meeting 2 an average of students who completed 72.82 with a percentage of completeness 60.86%, cycle II meeting 1 an average of students who completed 77.17 with a percentage of completeness 73.91%, cycle II meeting 2 the average student who completed 81.74 with a percentage of completeness 86.95%.
Peningkatan Kemampuan Pemecahan Masalah Matematis Melalui Model Problem Based Learning dengan Menggunakan Soal-soal Berbasis Budaya Lokal Tensi Olga Vera; Putri Yulia; Nur Rusliah
Logaritma : Jurnal Ilmu-ilmu Pendidikan dan Sains Vol 9, No 01 (2021)
Publisher : UIN Syekh Ali Hasan Ahmad Addary Padangsidimpuan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24952/logaritma.v9i01.2782

Abstract

The ability to solve problems is part of the purpose of learning mathematics in junior high school, but the reality that occurs in the field is not the case. This can be seen from the lack of trained students and find it difficult to work on the stages of problem solving so that students' mathematical problem-solving abilities are still relatively low. Therefore, Problem Based Learning (PBL) learning model is used by using questions based on local culture. This study aims to look at differences in the improvement of students' mathematical problem-solving abilities between those through the PBL learning model using questions based on local culture and students who use conventional learning in class VII. The method is Quasi Experimental Design with the Random Sampling Cluster technique, VIIB class as the experimental and the VIID class as the control. Data processing is performed by the formula N-gain, then hypothesis testing is done using the t test. From the results of data analysis shows that there are significant differences in the improvement of students' mathematical problem-solving abilities between those who go through the PBL learning model by using questions based on local culture and those using conventional learning.
Studi Penelusuran Alumni Prodi Tadris/Pendidikan Matematika IAIN Padangsidimpuan Deswinda Harahap; Suparni Suparni
Logaritma : Jurnal Ilmu-ilmu Pendidikan dan Sains Vol 9, No 01 (2021)
Publisher : UIN Syekh Ali Hasan Ahmad Addary Padangsidimpuan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24952/logaritma.v9i01.3645

Abstract

The background of this research is the writer's curiosity to the Graduates of Mathematics department at IAIN Padangsidimpuan. This article will describe the competencies of graduates of Mathematics department after they work. This article will also describe whether the Mathematics department has been able to prepare graduates' competencies in facing the challenges of the job market. The results of this study indicate that 95% of graduates are already working. Most of the graduates work in the education sector as mathematics teachers at various levels of public and private schools. It can be said that the place where they work is in accordance with their skill background. However, many of them still receive a very low salaries. Many of Ther salaries are under one million. For them, it does not matter, the most important thing for them is  they can work and they can apply their skills. Most of them are not too long to get the first job after graduated their studi, because before they graduate from their collage, they have started to look  for a job.
Kemampuan Penalaran Matematis Siswa melalui Pendekatan Realistic Mathematics Education Di SMP Negeri 5 Padangsidimpan Almira Amir; Nora Nora
Logaritma : Jurnal Ilmu-ilmu Pendidikan dan Sains Vol 9, No 01 (2021)
Publisher : UIN Syekh Ali Hasan Ahmad Addary Padangsidimpuan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24952/logaritma.v9i01.3565

Abstract

This study aims to improve students' mathematical reasoning on the subject matter of cubes and blocks through the Realistic Mathematics Education (RME) approach. This is motivated by the low mathematical reasoning of students at the time of learning.This research is a type of Classroom Action Research using Kurt Lewin's model which consists of two cycles, each cycle consists of four steps, namely: planning, action, observation, and reflection. Data collection instruments used in the form of tests and observations. This research was conducted in class VIII3 of SMP Negeri 5 Padangsidimpuan in April 2019. The results of this study indicate that the action hypothesis is accepted. Mathematical reasoning ability of students showed an increase in the pre-cycle of students' mathematical reasoning completeness was 21.74% (5 people), in the first cycle of meetings 1 and 2 students' completeness was 47.83% (11 people) and 60.87% (14 people). In the second cycle of meetings 1 and 2, the students' completeness was 73.91% (17 people) and 86.95% (20 people). The percentage of mathematical reasoning completeness of the students above has reached 80% of the number of students, so this research is said to have been successful. For further researchers, it is hoped that they can use the results of this study as a study for conducting further research on the application of the Realistic Mathematics Education (RME) approach to wider materials on cubes and blocks.
Meningkatkan Kemampuan Kognitif Siswa melalui Model Contextual Teaching and Learning (CTL) Di Kelas VIII MTs Swasta Baharuddin Rahma Hayati
Logaritma : Jurnal Ilmu-ilmu Pendidikan dan Sains Vol 9, No 01 (2021)
Publisher : UIN Syekh Ali Hasan Ahmad Addary Padangsidimpuan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24952/logaritma.v9i01.3475

Abstract

This research purpose to many students are slow to understand the material being tauht, the students is not yet actively expressing his or her opinion, apt to silent, so it is difficult  to know whether or not the students is familiar with the material and teacher learning use the methods of speaking and giving duties to the students later at the end of the assignment and being assembled and inspected by the teacher. So efforts by researchers in resolving the above problem by applying the Contextual Teaching and Learning (CTL) model. This research purpose to know the increasing students cognitive capability through the Contextual Teaching and Learning (CTL) model on linear two-variable equations systems in class VIII MTs private Baharuddin Angkola Muaratais district. This research applied classroom action research (CAR). Classroom action research is discuss process by cycle system. This research done two cycle, every cycle comprise with two meeting. Instrument of collecting date are test and observation. The study subject was class VIII MTs private Baharuddin in 2020/2021 year of 34 students 19 sons and 15 daughters. Studies show that the first test of the completed number of students is 6 people at 17,65%. After application of the Contextual Teaching and Learning (CTL) model there is an increase in the students’ cognitive abilities at each meeting. In the first cycle of the first meeting the average completed of students by 69,67 with the percentage of completeness of 32,35%, the first cycle of the second meeting the average completed of students by 76,88 with the percentage of completeness of 50%, in the second cycle of the first meeting the average completed of students by 83,15 with the percentage of completeness of 70,59%, the second cycle of the second meeting the average completed of students by 90,09 with the percentage of completeness of 85,29%. The students target of achievement is 75%, then this research can be terminated. So it could be concluded that students’ cognitive abilities could increase through a Contextual Teaching and Learning (CTL) model on linear two-variable equations systems in class VIII MTs private Baharuddin Angkola Muaratais district.
Desain Pembelajaran Matematika Berbasis Etnomatematika untuk Menjadikan Laboratorium Matematika yang Inovatif Di IAIN Curup Syaripah Syaripah
Logaritma : Jurnal Ilmu-ilmu Pendidikan dan Sains Vol 9, No 01 (2021)
Publisher : UIN Syekh Ali Hasan Ahmad Addary Padangsidimpuan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24952/logaritma.v9i01.3714

Abstract

The purpose of research in mathematics learning is to obtain the needs of lecturers and students of Tadris Mathematics IAIN Curup, to plan the development, design, design, design, effectiveness of ethnomathematics-based learning to make an innovative mathematics laboratory. This type of research is a mixed method that is a combination of quantitative and qualitative research. The Plomp model phase consists of an investigation phase, a design phase, a realization/construction phase, a test phase, an evaluation, and a revision and implementation phase. This research was carried out on Tadris Mathematics students of IAIN Semester IV Academic Year 2018/2019 The results of the perception questionnaire of Tadris Mathematics lecturers and students showed 72% of students and 100% of lecturers stated that the mathematics learning used so far was not appropriate. Initial design planning for the development of ethnomathematical-based Geometry Transformation teaching materials.Study book design with 5 (five) chapters consisting of 42 pages and a bibliography. The results of RPS/SAP validation with an average of 3.24 categories are quite good with slight revisions, 3.15 textbook categories are good enough so that they can be used with slight revisions and LKM with an average of 3.03 categories are quite good with revisions. The results of the practicality of the book obtained an average of 4.38 in the good/practical category, the practicality of the LKM with an average of 4.45 in the good/practical category and the practicality response of learning mathematics with an average of 91.7% which means it is very practical. The results of the effectiveness of learning mathematics obtained from observations of lecturer activities assessed by observers, obtained 84% of lecturer activities according to RPS.
Analisis Kesulitan Mahasiswa Matematika dalam Belajar Teori Grup di Masa Pandemi Covid-19 Diyah Hoiriyah
Logaritma : Jurnal Ilmu-ilmu Pendidikan dan Sains Vol 9, No 01 (2021)
Publisher : UIN Syekh Ali Hasan Ahmad Addary Padangsidimpuan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24952/logaritma.v9i01.3952

Abstract

This article aims to analyze the difficulties in learning mathematics of students in the Tadris/Mathematics Education Study Program during the online learning process in the Group Theory course during the Covid-19 Pandemic. This type of research is descriptive qualitative research. The research subjects were students of the fifth semester of Tadris/Mathematical Education, Faculty of Tarbiyah and Teacher Training at IAIN Padangsidimpuan who took the Group Theory course. The research data was taken from a questionnaire on learning difficulties in mathematics which was distributed to students. The results of the data analysis showed that students experienced some difficulties in learning mathematics during the online learning process. The learning difficulties faced by these students are; 1) 88.86% of the difficulties faced by students in terms of technical problems affecting the wifi signal/network; 2) 75.43% of the difficulties faced by students in terms of students' inability to understand Group Theory material through online learning both in terms of defining, giving examples to providing proof of Group Theorem and solving problems in Group Theory; 3) then 78.04% of interactions during the online learning process that are less focused; and 4) 74.09% of students experience difficulties in terms of assignments and teaching materials in online learning.

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