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Al-Jabar : Jurnal Pendidikan Matematika
Published by Universitas Islam Negeri Raden Intan Lampung
ISSN : -     EISSN : 25407562     DOI : 10.24042
Core Subject : Education,
Education Mathematics
Al-Jabar : Jurnal Pendidikan Matematika, with registered number p-ISSN: 2086-5872 (print), e-ISSN: 2540-7562 (online), is a scientific journal published by Mathematics Education IAIN Raden Intan Lampung. The aim of this journal publication is to disseminate new theories and research results that have been achieved in the area of mathematics education. Al-Jabar: Jurnal Pendidikan Matematika, particularly focuses on the main issues in the development of the sciences of mathematics education, mathematics education, and applied mathematics. Al-Jabar, has been published since 2010, and starting from 2015, has been published online. Al-Jabar: Jurnal Pendidikan Matematika published twice a year, the period from January to June and July to December. This publication is available online via open access.
Arjuna Subject : -
Articles 374 Documents
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Students’ mental construction in cube and cuboid concepts based on mathematical ability differences Rofiki, Imam; Anam, Ahmad Choirul; Sari, Putri Eka; Irawan, Wahyu Henky; Santia, Ika
Al-Jabar: Jurnal Pendidikan Matematika Vol 11 No 1 (2020): Al-Jabar: Jurnal Pendidikan Matematika
Publisher : Universitas Islam Raden Intan Lampung, INDONESIA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24042/ajpm.v11i1.5946

Abstract

Understanding of cube and cuboid concepts is one of the essential goals of solid geometry learning. Most studies of students’ understanding of these concepts have posited a gap between the students’ surface area and volume conceptions of its and students’ understanding. The study aims to describe the students’ mental constructions in APOS (Action, Process, Object, and Schema) theory framework. This study used analysis of students as subject to three junior high school students who have differences in mathematical abilities with a qualitative approach. Data were collected by the task sheet and interview. The result of this study evidences that subject who has high mathematical ability could solve problems about cube and cuboid concepts correctly in the action stage. In the process and object stage, subject could provide detailed explanations of how steps to assess the surface area and volume of cube and cuboid. She compared two shapes with different sizes of cube and cuboid. In the schema stage, she made systematic understanding related to the concepts of surface area and volume of cube and cuboid. The subject who has medium mathematical ability explained her mental construction in action and process stage well, despite the error in the process stage. Next stage, she had compared two different shapes of cube and cuboid to found their ratio. The last stage, she had not completed her explanation. The subject has low mathematical ability could solve the problems about cube and cuboid concepts. At the process, object, and schema stage, she had not completed its indicators to show cube and cuboid concepts.
Climber Prospective Teacher: Relationship Beliefs and Mathematics Teaching Practice Muhtarom, Muhtarom; Siswono, Tatag Yuli Eko; Juniati, Dwi
Al-Jabar: Jurnal Pendidikan Matematika Vol 11 No 1 (2020): Al-Jabar: Jurnal Pendidikan Matematika
Publisher : Universitas Islam Raden Intan Lampung, INDONESIA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24042/ajpm.v11i1.6103

Abstract

This research explained the description of the beliefs of prospective teacher who had an adversity quotient type climber and the relationship between beliefs and mathematics teaching practices in the classroom. One student of climber prospective teacher who had taken an internship course and had good communication skill was willing to become a research subject. Semi-structured interview and observation of learning in class were used to obtain the research data. The data that had been obtained were coded, reduced, presented, triangulated to obtain credible data, and then conclusions were drawn. The results show that the climber math prospective teacher believes that mathematics is as something dynamic, namely the space of creation, human invention that develops continuously. Teaching mathematics is student-centered through problem providing or problem solving, and learning is as a construction of student’s active understanding to build knowledge. A more detailed explanation of beliefs description and the relationship with the mathematics teaching practice is described in this research. 
Students’ Intuitive and Analytical Thinking in the Mathematics Study through the Integration of STAD and Environmental Islamic Jurisprudence (Fiqh) Abdillah, Abdillah; Mastuti, Ajeng Gelora; Rijal, Muhammad; Rahman, Muhajir Abd.
Al-Jabar: Jurnal Pendidikan Matematika Vol 11 No 1 (2020): Al-Jabar: Jurnal Pendidikan Matematika
Publisher : Universitas Islam Raden Intan Lampung, INDONESIA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24042/ajpm.v11i1.6120

Abstract

The success of a learning process depends on the teacher’s mastery of materials, strategies, and media. Teachers need to possess high creativity to maintain their students’ interest and motivation in learning. The integration of effective learning models and appropriate media, such as using plastic waste as realia, can be one of the alternatives to improve the quality of learning. This study also aimed to examine students' awareness of environmental issues. The quantitative and qualitative data of the study were collected simultaneously to answer the research problems. Interviews were conducted during the implementation of the learning process and quizzes. A pre-experimental one-shot case study design was employed to gather the quantitative data which were then analyzed descriptively. The results of the current study showed that the students' intuitive thinking started to develop in phase 3, where they were asked to identify the type of plastic glass they were holding. Phase 4 that allowed the students to separate parts constructing the glass, determine the name of each part, and set a point of view or the purpose underlying the material presented was the phase where the students performed an analytical thinking process. In phase 5, the students were allowed to solve a mathematical problem using analytical thinking. The interaction between students' intuitive and analytical thinking shown in the identification and labeling of each type of three-dimensional form will be discussed in this article  
The Application of the Accelerated Learning Cycle, Brain-based Learning Model, and Direct Instruction Model toward Mathematical Reasoning in Terms of Mathematical Communication Kusuma, Arie Purwa; Rahmawati, Nurina Kurniasari; Ramadoni, Ramadoni
Al-Jabar: Jurnal Pendidikan Matematika Vol 11 No 1 (2020): Al-Jabar: Jurnal Pendidikan Matematika
Publisher : Universitas Islam Raden Intan Lampung, INDONESIA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24042/ajpm.v11i1.6185

Abstract

The students' mathematical reasoning and mathematical communication abilities are influenced by several factors such as the use of learning models used by teachers in learning. The use of appropriate learning models can increase students' mathematical communication abilities and reasoning. This study aims to determine the effect of the Accelerated Learning Cycle, Brain-based learning model and Direct Instruction learning models on students' mathematical reasoning abilities seen from their communication abilities. This is a quasi-experimental research. The data were analyzed using analysis of variance with unequal cells. This study concludes that, first, Accelerated Learning Cycle provides better mathematical reasoning abilities than the Brain-based learning model and the Direct Instruction learning model and Brain-based learning model provide better mathematical reasoning abilities than the Direct Instruction learning model. Second, students who have high mathematical communication abilities have better mathematical reasoning than students with moderate or low mathematical communication abilities, students who have medium communication abilities have better mathematical reasoning than students with low mathematical communication abilities 
Hypothetical learning trajectory (HLT) for proof logic topics on algebra course: What’re the experts think about? Agustiani, Riza; Nursalim, Rahmat
Al-Jabar: Jurnal Pendidikan Matematika Vol 11 No 1 (2020): Al-Jabar: Jurnal Pendidikan Matematika
Publisher : Universitas Islam Raden Intan Lampung, INDONESIA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24042/ajpm.v11i1.6204

Abstract

Proof has a role in the formation and development of mathematics in the history of mathematics. The ability to construct proof is one indicator of mathematical reasoning which is an important component of mathematics learning outcomes, especially in Algebra. This qualitative research aims to describe the design process of the Hypothetical Learning Trajectory for Proof Logic Topics. This research is based on design research. This research consists of three stages: preparing for the experiment, the design experiment, and the retrospective analysis. Data collection techniques in this research are walkthrough and interview. The walkthrough and interview were conducted in the first stage of design research (preparing the experiment) with two activities: expert review and reader proof to collect materials to revise the HLT. Four experts participated in the expert review. The experts are chosen based on the experience, both research experience, and teaching experience. The result of this research is the design of HLT for proof logic topics consist of four activities: reading proof, completing proof, examining proof, and Constructing proof. The four activities were well-done on the design experiment stage. 
An Identification of Students’ Responses Based on Solo Taxonomy in Mathematics Learning Toward Learning Activities and Learning Outcomes Kaharuddin, Andi; Hajeniati, Nining
Al-Jabar: Jurnal Pendidikan Matematika Vol 11 No 2 (2020): Al-Jabar: Jurnal Pendidikan Matematika
Publisher : Universitas Islam Raden Intan Lampung, INDONESIA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24042/ajpm.v11i2.6270

Abstract

Taxonomy solo is a classification of real responses from students. This research aims to identify the effect of students' responses based on a solo taxonomy in mathematics learning on learning activity and learning outcomes. This research is a mixed-method with an explanatory sequential design. The data were collected using observation instruments, questionnaires, interviews, and tests. The data was analyzed inferentially and narratively. Based on the results, students who are at the extended abstract response level are classified as very active and having very high learning outcomes, students who are at the relational response level are identified as active and having high learning outcomes, students who are at the multi-structural response level are identified as active and having moderate learning outcomes, students who are at the Uni-structural response level are identified as active and having moderate learning outcomes, and students who are at the pre-structural response level are identified as less active and having low learning outcomes. Thus, it can be interpreted that students' responses based on solo taxonomy in mathematics learning affect activeness and learning outcomes. 
Problem Based Learning with a Scientific Approach with Character in Mathematics Learning Wakit, Ahmat; Kusumodestoni, R. Hadapiningradja
Al-Jabar: Jurnal Pendidikan Matematika Vol 11 No 1 (2020): Al-Jabar: Jurnal Pendidikan Matematika
Publisher : Universitas Islam Raden Intan Lampung, INDONESIA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24042/ajpm.v11i1.6411

Abstract

The studied aims to determined the characteristics of the development of learned devices with the problem-based learned model with a scientific approached which container the character in math subject. The research method used is a development research. Development is carried out with the preparation of valid, practical and effective tools. The learned tools developed were syllabus, (RPP) Learning Implementation Plans, (LKS) Student Worksheets, Student Books, and TKPM (Problem Solving Ability Tests). After the learned device valid then tested, the experiment was carried out by observed the learned process, process skills, students' character, at the end of the learned process did by TKPM and filled in the student response questionnaire. Data were analyzed to determined the practicality and effectiveness of the used of learned devices. The results showed: (1) the average score of the learned device validation results was 4.37 in the very good category so the devices developed were valid; (2) the application of practical learned tools because the average score of the teacher's ability to manage to learned is 3.98 in the good category and the average score of 4.36 student respons is in the very good category; (3) the application of effective learned devices because TKPM has achieved classical completed, the average TKPM experimental class better than the control class, the proportion of completed TKPM students experiment better than control class students, there is a positive influence was students' process and attitude skills towards TKPM, there is an increase in mathematical problem-solved abilities. 
Geometry and Measurement in Quran Huda, Nuril
Al-Jabar: Jurnal Pendidikan Matematika Vol 11 No 2 (2020): Al-Jabar: Jurnal Pendidikan Matematika
Publisher : Universitas Islam Raden Intan Lampung, INDONESIA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24042/ajpm.v11i2.6420

Abstract

The Quran contains the basic principles of science and civilization. These sciences include natural science and mathematics. The study of mathematics covers algebra, statistics, logic, geometry, measurement, and others. This research aimed to examine the verses of the Quran, which contain geometry and measurement concepts. This research employed the descriptive-qualitative method with library research design. This research revealed that the Quran contains five concepts of geometry: three concepts of line and two concepts of angle. Meanwhile, the Quran also contains fourteen concepts of measurement: six units of time, five units of weight, two units of area, and two units of length or distance.  
Developing Web-Assisted Interactive Media to Improve Mathematical Creative-Thinking Ability Rachmawati, Andini Dwi; Baiduri, Baiduri; Effendi, Mohammad Mahfud
Al-Jabar: Jurnal Pendidikan Matematika Vol 11 No 2 (2020): Al-Jabar: Jurnal Pendidikan Matematika
Publisher : Universitas Islam Raden Intan Lampung, INDONESIA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24042/ajpm.v11i2.6505

Abstract

Millennials currently prefer web-assisted interactive media as a learning resource rather than reading books. To understand the contents of the book, students need high literacy skills. Unlike the web-assisted interactive media, the explanations are accompanied by pictures and simulations that can help students to understand the learning material. The developed web-assisted interactive learning media had been adjusted to the 2013 curriculum. This research aimed to develop a valid, effective, and practical interactive web-assisted learning media. The research development model used was the 4D model which consisted of Define, Design, Development, and Dissemination stages. The instrument used in this study was a validation sheet, a questionnaire to measure the practicality, and a creative-thinking test to measure the effectiveness. The results of validation showed that the developed learning media obtained an average score of 86.17% and had met the validity criteria with excellent quality. The questionnaire obtained a score of 88.39% which indicated that the developed learning media was effective. The developed web-assisted interactive learning media met the effectiveness criteria with the obtained average score of 80% based on four indicators, namely fluency, flexibility, authenticity, and detail. It can be concluded that the web-assisted interactive learning media is suitable to be used as a learning resource. 
The Use of Monte Carlo Method to Model the Aggregate Loss Distribution Septiany, Rafika; Setiawaty, Berlian; Purnaba, I Gusti Putu
Al-Jabar: Jurnal Pendidikan Matematika Vol 11 No 1 (2020): Al-Jabar: Jurnal Pendidikan Matematika
Publisher : Universitas Islam Raden Intan Lampung, INDONESIA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24042/ajpm.v11i1.6599

Abstract

Based on Law Number 24 of 2011, a state program was established to provide social protection and welfare for everyone, one of which is health insurance by the Social Insurance Administration Organization (BPJS). In its implementation, several important evaluations are needed. One that requires accurate evaluation is claim frequency and claim severity in determining premiums and reserved funds. This thesis provides one form of a method for selecting the distribution of claim frequency and claim severity. The data used in this study was taken from BPJS Health in the City of Tangerang in 2017. The distribution of opportunities chosen had been adjusted to the participant's claim data and parameter estimated using the Maximum Likelihood Estimation method. The chi-square test was used to check the goodness of fit for claim frequency distributions whereas the Anderson Darling tests were applied to claim severity distributions. The results of the chi-square test and the Anderson-Darling test showed that the model that matched the claim frequency distribution was the Z12M–NBGE distribution while the model that matched the claim severity was lognormal. The Z12M–NBGE distribution and the lognormal formed the aggregate loss distribution using the Monte Carlo method. Furthermore, the simulation results were obtained to the measurement of the Value in Risk (VaR) and Shortfall Expectations (ES). So, the Monte Carlo method is simple to implement the aggregate loss distributions and can easily handle various risks with dependency.  

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