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Desimal: Jurnal Matematika
Published by Universitas Islam Negeri Raden Intan Lampung
ISSN : 26139073     EISSN : 26139081     DOI : -
Core Subject : Education, Social,
Education Mathematics Social Sciences
Desimal: Jurnal Matematika, particularly focuses on the main issues in the development of the sciences of mathematics education, mathematics education, and applied mathematics. Desimal: Jurnal Matematika published three times a year, the period from January to April, May to Augustus, and September to December. This publication is available online via open access.
Arjuna Subject : -
Articles 301 Documents
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Penerapan Model Pembelajaran Discovery Learning Berbantuan Program Cabri 3D untuk Meningkatkan Hasil Belajar Peserta Didik Materi Pokok Dimensi Tiga Hutapea, Lisbeth
Desimal: Jurnal Matematika Vol. 2 No. 1 (2019): Desimal: Jurnal Matematika
Publisher : Universitas Islam Negeri Raden Intan Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24042/djm.v2i1.4186

Abstract

This study aims to improve student learning outcomes in the three dimensional material with the Discovery Learning model assisted by the 3D CABRI program. The type of research used is Classroom Action Research. The results showed that discovery learning learning models assisted by Cabri 3D media can improve student learning outcomes. This is evidenced by an increase from the pre cycle with the class average value of 63.06 increasing to 63.89 in the first cycle and in the second cycle the average increased again to 83.13. Classical learning completeness also increased from 9.26% in the pre-cycle to 38.89% in the first cycle and increased again in the second cycle to 80%.
Pengembangan Bahan Ajar Aljabar Linier Berbasis Nilai-nilai Keislaman dengan Pendekatan Saintifik Pratiwi, Dona Dinda
Desimal: Jurnal Matematika Vol. 2 No. 2 (2019): Desimal: Jurnal Matematika
Publisher : Universitas Islam Negeri Raden Intan Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24042/djm.v2i2.4200

Abstract

The purpose of this study is to produce linear algebra teaching materials based on Islamic values with a scientific approach to matrix material and a system of linear equations that are appropriate and appropriate to the needs of students. This research method is Research and Development (R & D) with the model used, namely the ADDIE model which consists of five stages, namely Analysis, Design, Development, Implementation, Evaluation. Validation was carried out by material experts, media experts and experts in religious studies and responses from students. The instruments used were in the form of validation questionnaires and student response sheets. Based on the research, the results of material expert validation with a percentage of 84% with the category "Very Worthy", the results of media expert validation with a percentage of 76% with the category "Eligible", the results of the validation of religious experts with a percentage of 76% with the category "Eligible" and after development, material Teachers are implemented or tested to find out student responses with 88% presentation in the "Very Good" category. Based on this research development the advantages of the teaching materials are teaching material related to Islamic values and scientific approaches.
Pengembangan Lembar Kerja Peserta Didik Berbasis Problem Based Learning untuk Meningkatkan Kemampuan Penalaran Matematika Mahendra, As'ari Eka; Caswita, Caswita; Bharata, Haninda
Desimal: Jurnal Matematika Vol. 2 No. 2 (2019): Desimal: Jurnal Matematika
Publisher : Universitas Islam Negeri Raden Intan Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24042/djm.v2i2.4238

Abstract

This development research aims to develop a problem based learning based worksheet to improve students' mathematical reasoning abilities. This study begins with a preliminary study (needs analysis), preparation of student worksheets, validation of student worksheets, initial field trials, and field tests. The subjects of this study were students of class XI MIA2 MA Ma'arif NU 05 Sekampung Lampung Timur. The results of the preliminary study indicate the need to develop problem based learning based worksheets. Preparation of student worksheets begins with drawing up a design and all its components based on the drafting guide. The results of the validation show that LKPD has met the standards of eligibility for content and design. The results of the initial field trials indicate that the student worksheet is included in the good category. The results of field tests show that students' mathematical reasoning aspects are quite good because more than 75% of students have fulfilled the minimum completeness criteria.
Membangun Self-Confidence Siswa melalui Pembelajaran Matematika Andayani, Meri; Amir, Zubaidah
Desimal: Jurnal Matematika Vol. 2 No. 2 (2019): Desimal: Jurnal Matematika
Publisher : Universitas Islam Negeri Raden Intan Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24042/djm.v2i2.4279

Abstract

Self-confidence is an important aspect of personality in a person. Self confidence is an attitude or feeling of confidence in one's own abilities so that the person concerned is not too anxious in his actions, can feel free to do things he likes, and is responsible for his actions, warm and polite in interacting with others, have an urge to excel and recognize their strengths and weaknesses. Mathematics learning is one of learning that can generate students' self confidence attitudes, so that it can improve achievement and learning outcomes in school.
Analisis Kemampuan Pemahaman Relasional Matematis : Dampak Strategi Pembelajaran Index Card Match Wulandari, Fitri; Rakhmawati, Rosida
Desimal: Jurnal Matematika Vol. 2 No. 3 (2019): Desimal: Jurnal Matematika
Publisher : Universitas Islam Negeri Raden Intan Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24042/djm.v2i3.4291

Abstract

This study aims to determine (1) differences in the ability of relational understanding of mathematics of students who get learning with Index Card Match learning strategies with students who obtain conventional learning, (2) differences in the ability of mathematical relational understanding of students who have high, medium and low, (3) interaction of Index Card Match learning strategies and the level of interest in learners 'learning on the students' mathematical relational understanding abilities. The method used in this study is a quasi-experimental (Quasi Experimental Research). Hypothesis testing using two-way cell anava is not the same. Based on the results of the study it can be concluded (1) There is a difference in the ability of mathematical relational understanding of students who get learning with Index Card Match learning strategies with students who obtain conventional learning, (2) There are differences in the ability of students to have a high learning interest interest in learning is moderate, and interest in learning is low, (3) There is no interaction between Index Card Match learning strategies and the level of interest in learners 'learning on students' mathematical relational understanding abilities.
Analisis Prestasi Belajar Matematika : Dampak Model Pembelajaran Kooperatif Tipe Think-Pair-Square Ditinjau dari Aktivitas Belajar Suriati, Suriati
Desimal: Jurnal Matematika Vol. 2 No. 2 (2019): Desimal: Jurnal Matematika
Publisher : Universitas Islam Negeri Raden Intan Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24042/djm.v2i2.4374

Abstract

This study aims to describe the effectiveness of TPS (Think-Pair-Square) in terms of mathematical learning activities and the effectiveness of TPS in terms of learning achievement in mathematics. The method in this study was quasi-experimental. The study population was class IX students of SMP Negeri 24 Bandar Lampung Academic Year 2017/2018. The sample was obtained by random class technique and selected class IX D as the control class and class IX E as the experimental class. The research instrument used was a test of student achievement in the form of pre-test and post-test, learning activity questionnaire and observation sheet of learning activities of students. The results showed that the TPS learning model was effective in terms of the learning activities of students with a tcount = 6.604> t table = 2.05553 so that H0 was rejected. In addition, TPS was also effective in terms of the learning achievement of the analysis results. It was found that the p value was 0,000 <α so that H0 was rejected, meaning there were differences in the results of the pre-test and post-test. This means that the Think Pair Square (TPS) learning model is effective in terms of learning achievement.
Analisis Kemampuan Berpikir Kritis Matematis: Dampak Model Pembelajaran Problem Based Instruction Suhita, Suhita
Desimal: Jurnal Matematika Vol. 2 No. 2 (2019): Desimal: Jurnal Matematika
Publisher : Universitas Islam Negeri Raden Intan Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24042/djm.v2i2.4380

Abstract

This study aims to improve students' critical thinking skills through the application of Problem Based Instruction learning models. This research is a quasi experiment. The research subjects in this study were students of class VIIIA SMP Negeri 24 Bandar Lampung Academic Year 2017/2018 with a total of 32 students with a cluster random sampling technique. The required data is obtained through observation, documentation and tests using description questions. The collected data was analyzed by quantitative analysis techniques. The instruments used to collect data are tests of critical thinking skills. Data from the test results and observation sheets were analyzed quantitatively. The results showed that students 'critical thinking skills in the control class were 14.23% and included in the low category, while in the experimental class students' critical thinking abilities reached 87.5% or included in the high category. So, it can be said that the Problem Based Instruction learning model can improve students 'critical thinking skills, where students' critical thinking abilities increase from each cycle. So that the Problem Based Instruction learning model can be applied in learning both in mathematics and in other lessons.
Pengembangan Modul Matematika Berbasis Problem Solving pada Materi Vektor Ariskasari, Dewi; Pratiwi, Dona Dinda
Desimal: Jurnal Matematika Vol. 2 No. 3 (2019): Desimal: Jurnal Matematika
Publisher : Universitas Islam Negeri Raden Intan Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24042/djm.v2i3.4454

Abstract

This study aims to develop, determine the response and effectiveness of problem-based mathematical modules on vector material. This type of research is research and development or better known as Research and Development (R&D). The approach model used in this study is ADDIE. Data analysis techniques in this study were used to calculate the validity of the validators, the response of educators and students, and the effectiveness of mathematics teaching materials. The results of the validation test conducted by the validator are 3.24 the criteria are quite valid. The results of educator responses 3.21 with interesting criteria, response to small-scale trials of 3.4 with very interesting responses and field trials of 3.8 with very interesting responses. The results of the effectiveness test conducted during the field test got a percentage of 61% with effective criteria. From these data it shows that instructional materials are feasible to use based on the educator's response and effectiveness carried out by students, so the development of mathematical modules is appropriate for use in schools.
Mathematical Connection Ability : Impact of Contextual Teaching And Learning Approaches in Flat Side Space Lesson kandari, kurnia; Zanthy, Luvy Sylviana
Desimal: Jurnal Matematika Vol. 3 No. 1 (2020): Desimal: Jurnal Matematika
Publisher : Universitas Islam Negeri Raden Intan Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24042/djm.v3i1.4467

Abstract

The purpose of this research is to analyze the students' mathematical connection ability before and after getting Contextual Teaching and Learning. The subjects were the 26 students of class VIII-A at SMI 1 MANIIS, Purwakarta Regency. The research used the descriptive method with the qualitative approach. The data for the analysis were from the test to student consist of 5 questions with 4 different indicators. The results shows that all students have moderate in mathematical connection ability with the overall results of 65.83%. For the results of each indicator, there is one indicator that has not been met, understanding the equivalent representation from one procedure to another one, or from one concept to another concept. So it can be concluded that the mathematical connection ability in terms of the Contextual Teaching and Learning approach has a significant effect.
Analisis Kemampuan Koneksi Matematik dan Self Confidence Siswa SMP melalui Model Pembelajaran Think Pair Share Alfiyah, Nisa Fitri; Rosdianti, Iis; Zanthy, Luvy Sylviana
Desimal: Jurnal Matematika Vol. 2 No. 3 (2019): Desimal: Jurnal Matematika
Publisher : Universitas Islam Negeri Raden Intan Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24042/djm.v2i3.4469

Abstract

This study aims to describe the ability of mathematical connections and students' self confidence through the Think Pair Share (TPS) learning model. This research is a qualitative descriptive.. The instruments used in this study were the description test and self confidence questionnaire. From the results of the completion of the student description test, it was found that the level of mathematical connection ability through the Think Pair Share learning model for junior high school students is still relatively low. This is influenced by several factors, one of them is students' lack of understanding of the material and students are not able to transform the problem posed into the knowledge they have. This can be seen from the mistakes of students in working on the test description. Meanwhile, even though the test results of the mathematical connection description are still low, the scale of the students' self-confidence attitude is good enough at 60.96%.

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