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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 7 Documents
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Search results for , issue "Vol 6, No 02 (2018)" : 7 Documents clear
EFEKTIFITAS METODE JARIMATIKA DALAM PEMBELAJARAN OPERASI HITUNG PERKALIAN BAGI ANAK SEKOLAH DASAR/ MADRASAH IBTIDAIYAH Suparni Suparni
Logaritma : Jurnal Ilmu-ilmu Pendidikan dan Sains Vol 6, No 02 (2018)
Publisher : IAIN PADANGSIDIMPUAN

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24952/logaritma.v6i02.1273

Abstract

Using the Jarimatika method to improve students' numeracy skills in counts ranging from 6 to 20. Jarimatika is very easy to accept students, learning does not burden computer memory and tools can be used easily in fronst of students. Students aged 6 years to 12 years are only able to think logically or be able to solve problems that characterize them concretely or by talking about and doing things. Therefore, students will more easily think of something visual from verbal. Thus students will be able to optimize the abilities of each student. With continuous training, it will activate brain cells. The application of the Jarimatika method is very helpful for students, because so far students only count the multiplication by memorizing or summarizing repeatedly, requiring considerable time, besides that most students are not careful in adding them up.
UPAYA MENINGKATKAN PEMAHAMAN KONSEP PADA OPERASI HITUNG BILANGAN BULAT MELALUI METODE DEMONSTRASI BENDA KONKRIT DI KELAS IIIA SD NEGERI 100715 DESA TELO KEC. BATANGTORU Sari, Mutia; Syahrani, Laila
Logaritma : Jurnal Ilmu-ilmu Pendidikan dan Sains Vol 6, No 02 (2018)
Publisher : IAIN PADANGSIDIMPUAN

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24952/logaritma.v6i02.1281

Abstract

This research was conducted to help students understand the concepts learned and facilitate students in solving multiplication material questions. Because the ability to understand concepts is part of a high level of mathematical thinking skills. This research was carried out in the Public Elementary School 100715 in Telo Village, Kec. Batangtoru. This type of research is Class Action Research (CAR). This research was conducted in 2 cycles. Techniques for receiving data by supporting tests and observations. The subject of this study was class III ^ A Public Elementary School 100715 Desa Telo Kec. Batangtoru.The results of this study were in the first cycle of students who completed 11 students with an average score of 66.38 and the percentage of completeness was 55%. In Cycle II students who completed as many as 19 students with an average value of students of 82.13 and the percentage of completeness was 95%. Thus it means applying the method of discussion of concrete objects can increase students' understanding on the subject of multiplication in class III ^ A 100715 Public Elementary School, Telo Village, Kec. Batangtoru.
STRATEGI PEMBELAJARAN YANG MENDUKUNG KEMAMPUAN KOMUNIKASI MATEMATIK Siregar, Rahma Hayati
Logaritma : Jurnal Ilmu-ilmu Pendidikan dan Sains Vol 6, No 02 (2018)
Publisher : IAIN PADANGSIDIMPUAN

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24952/logaritma.v6i02.1274

Abstract

Mathematical communication is the ability of a person in terms of explaining an algorithm and unique ways to solve problems, the ability of students to construct, and explain the presentation of real word phenomena in graphs, word/sentence, equation, tables or the ability of students to give assumstions about geometry image. Learning strategies that support mathematical communication skills is: Small-Group-Work Strategy, Group, Cooverative Learning, Think-Pair-Share Strategy, and Think-Talk-Write Strategy.
PENERAPAN MODEL PEMBELAJARAN PROBLEM BASED LEARNING UNTUK MENINGKATKAN HASIL BELAJAR MATEMATIKA DI SMP MUHAMMADIYAH 07 MEDAN PERJUANGAN TAHUN PELAJARAN 2018/2019 Lubis, Maulana Arafat; Azizan, Nashran
Logaritma : Jurnal Ilmu-ilmu Pendidikan dan Sains Vol 6, No 02 (2018)
Publisher : IAIN PADANGSIDIMPUAN

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24952/logaritma.v6i02.1282

Abstract

The objectives of the study were, to find out the result of student in learning Math before and after using problem based learning model, to find out whether problem based learning model able to improve students’ ability in learning Math. The material topic was Addition and Reduction of integer operations. The subject of the study were 33 students at the seventh grade of SMP Muhammadiyah 07 Medan Perjuangan in academic year 2018/2019. The object of the study was problem based learning model in improving students’ ability in learning math with th topic Addition and Reduction of integer operations. The data were collected by using test, observation, documentation and interview. The data were analyzed in several steps, they were: data reduction, data display, and verifiying/conclusion. The result of students’ ability in learning math before using problem based learning model was low. It was represented by percentage of students’minimum mastery criteria only 15,15% with average 52,27. After using problem based learning model, students’ ability was improved. The percentage of students’ minimum mastery criteria was 60,60% and 75 at the end of cycle I and 90,90% and 87.57 at the end of cycle II. As a result, the using of problem based learning model in learning math with topic Addition and Reduction of integer operations was able to improve the ability og the seventh grade students of SMP Muhammadiyah 07 Medan Perjuangan in academic year 2018/2019.
KOMUNIKASI MATEMATIS DALAM PEMBELAJARAN MATEMATIKA Siregar, Nur Fauziah
Logaritma : Jurnal Ilmu-ilmu Pendidikan dan Sains Vol 6, No 02 (2018)
Publisher : IAIN PADANGSIDIMPUAN

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24952/logaritma.v6i02.1275

Abstract

Mathematical communication is one aspect that must be owned and developed in learning mathematics, it is stated in Permen 22 of 2006 concerning Graduation Competency Standards in the field of mathematics. A well-designed mathematics learning process can develop students' mathematical communication skills. The communication process for students to be able to develop ideas and build mathematical knowledge through assignments or questions designed by the teacher. Problems with mathematical communication skills that can be used must be in accordance with mathematical communication indicators. Questions that are in accordance with indicators are questions that can measure students' mathematical abilities. Thus, a good communication process can be a means to teach mathematics. Effective and communicative learning.
PERBEDAAN KEMAMPUAN PEMECAHAN MASALAH MATEMATIKA SISWA DENGAN MENGGUNAKAN MODEL PEMBELAJARAN PROBING PROMPTING DAN PROBLEM BASED LEARNING DI MTsN 2 PADANGSIDIMPUAN Sari, Lili Nur Indah
Logaritma : Jurnal Ilmu-ilmu Pendidikan dan Sains Vol 6, No 02 (2018)
Publisher : IAIN PADANGSIDIMPUAN

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24952/logaritma.v6i02.1276

Abstract

This study aims to determine the significant differences between students' mathematical problem solving abilities after using the Probing Prompting model and the Problem Based Learning learning model. This type of research uses the quasi experimental design method. The design of this study was a pretest-posttest control group design. In this design, the grouping of research samples was done randomly, the experimental class I was taught using the Probing Prompting learning model and the experimental class II was taught using the Problem Based Learning learning model before and after the treatment was given the pretest and posttest. The results obtained from the Student Problem Solving Ability test conducted on the Probing Promting learning model were 43 students and obtained an average value of 67.09 while the Problem Based Learning learning model was 44 students and an average value of 64.43 was obtained. Students 'problem solving abilities after using the Promting Probing learning model in class VIII-1 (Experiment I) Padangsidimpuan 2 MTs obtained an average score of 67.09 Problem Solving Ability with a standard deviation or diversity from the results of students' mathematical problem solving ability test of 12.778. Students 'Problem Solving Ability after using the Problem Based Learning learning model in class VIII-3 (Exp.Padangsidimpuan MTs 2 obtained the average value of students' problem solving abilities of 64.43 with a standard deviation or diversity of a student's problem solving abilities of 13.944. Based on the t-test it is known that there is no difference in the Problem Solving Ability of Students with the Probing Promting learning model in class VIII-1 (Experiment I) and the Problem Based Learning learning model in class VIII-3 (Experiment II) or in other words concluded that there is no difference in Ability Problem Solving Students who are taught using Probing Promting learning models and Problem Based Learning learning models.
Pengaruh Penggunaan Software Geometer Sketchpad V4 Terhadap Kemampuan Pemahaman Konsep Bangun Datar Amir, Almira
Logaritma : Jurnal Ilmu-ilmu Pendidikan dan Sains Vol 6, No 02 (2018)
Publisher : IAIN PADANGSIDIMPUAN

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24952/logaritma.v6i02.1270

Abstract

The background of the research is students’ comprehension of two dimentional figure was low. It caused learning meadia that used by teacher was less varied and it cannot attract students’ attention in learning. So, students’ have difficulties to retell a concept that they have learned with classified characteristic of plane figure, determine circumference and area of plane figure. The purpose of this research was conducted to know the effect of using Software Geometer Sketchpad V4 toward students’ figure concept comprehension at VII class of SMP Negeri 11 Padangsidimpuan.The theories that used in this research is Bruner Theory about the important of comprehension about the best way for student’s to learning concepts or in mathematics principle was constructed a representation from the concepts itself, and Ausubel theory is about learning meaning concepts.This research is quantitative research with experiment method used Pretest-Posttest Control Group Desain. The population in this research is students at VII Class SMP Negeri 11 Padangsidimpuan that has total class is 3 class, with 70 students. The researcher taken the sample used cluster random sampling techniqueis 43 students. Sample in experiment class that give treated are 23 students and control class that untreated are 23 students. Data processing and data analysis is done with used formula Uji t.Based on normality test and homogeneity test from the both of classes were normally distributed and homogeneous. The Test of t-test is obtained from the result of hypotheses that show Tcount = 3,603 Ttable = 2,015, so Ho was rejected and Ha was be ajjected. It concluded there is a significant effect of software geometer sketchpad V4 toward students’ two dimentional figure comprehension concept at VII Class of SMP NegeriPadangsidimpuan.

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