cover
Filter by Year
Desimal: Jurnal Matematika
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.
Articles
32
Articles
Efektifitas Pembelajaran Guided Teaching dengan E-Learning untuk Meningkatkan Kemampuan Komunikasi Matematik Mahasiswa

Kusuma, Adi Candra, Afriliana, Ida

Desimal: Jurnal Matematika Vol 1, No 3 (2018): Desimal : Jurnal Matematika
Publisher : Universitas Islam Negeri Raden Intan Lampung

Show Abstract | Original Source | Check in Google Scholar |

Abstract

To many abstract concepts in mathematics learning make students think mathematics is difficult. The purpose of this research is to obtain the effectiveness of Guided Teaching learning with E-learning to improve students mathematical communication skills by 1) students mathematical communication skills who are given Guided Teaching learning with E-Learning achieve minimal mastery of both individual and classical learning, 2 ) students mathematical communication skills are given Guided Teaching learning treatment with E-Learning better than expository learning, and 3) an increase in mathematical communication skills of students who are given Guided Teaching learning treatment with E-Learning better than expository learning. The method used in the experiment (quantitative). Data collection methods using observation, interviews, and tests about students mathematical communication skills. Data analysis uses the completeness test, proportion test, comparative test, and N-Gain test. The results of this study obtain the effectiveness of guided teaching-learning with e-learning as follows (1) individual completeness meets KKM (68), (2) classical completeness by 75% with the proportion of students already getting 68 grades has exceeded 75%; (3) students mathematical communication skills of Guided Teaching learning with e-learning by 80.75 higher than expository learning by 69.50 (4) an increase in students mathematical communication skills of 0.407 medium categories and the difference in the increase in mathematical communication skills of students who were given treatment guided teaching-learning with e-learning is greater than Expository learning.

Pengembangan Bahan Ajar Gamifikasi pada Materi Himpunan

Wirawan, Yosi Marenda, Putra, Rizki Wahyu Yunian

Desimal: Jurnal Matematika Vol 1, No 3 (2018): Desimal : Jurnal Matematika
Publisher : Universitas Islam Negeri Raden Intan Lampung

Show Abstract | Original Source | Check in Google Scholar |

Abstract

The purpose of this study is to know whether the development of teaching materials gamification for seventh-grade students is feasible and interesting for use in junior high school. The subjects of the experiment were seventh-grade students at SMP Bandar Lampung. This research method is Research and Development (R&D), which a using Borg and Gall development model. The results of the assessment are: the expert assessment of the material giving a scored with an average percentage of 76% is categorized as highly feasible, the media or design experts scored with an average percentage of 71% categorized as feasible and the linguist gave a score with an average percentage of 69% categorized as feasible. In small group trials, an average of 3,6 was obtained with very attractive and feasible categories. In the field trial, it was found that the average of 3,4 was obtained with very attractive and feasible categories and the teachers response to the materials gamifikasi, it was found that the average of 3,3 was obtained with very attractive and feasible categorized. So it can be concluded that the gamification teaching materials on the are categorized very attractive and feasible for use in mathematics learning in junior high school.

Analisis Kemampuan Komunikasi Matematis Ditinjau dari Tipe Kepribadian Guardian dan Idealist

Melya, Lekok, Supriadi, Nanang

Desimal: Jurnal Matematika Vol 1, No 3 (2018): Desimal : Jurnal Matematika
Publisher : Universitas Islam Negeri Raden Intan Lampung

Show Abstract | Original Source | Check in Google Scholar |

Abstract

The purpose of this study is to describe the mathematical communication skills of high school students in terms of guardian and idealist personality types. Subjects in this study were taken using a purposive random sampling technique of two students from class X senior high school in Bandar Lampung with different personality types, that is one student with guardian personality type and one student with a idealist personality type based on David Keirseys personality dimensions, with personality type initial guardian (NAP) and initial idealist personality type (DBD). Mathematical communication skills are analyzed based on the following criteria : (1) the ability to write down what is known and asked about the questions; (2) the ability to write answers according to the purpose of the questions; (3) the ability to write down reasons for answering questions; (4) the ability to make mathematical terms and symbols; (5) the ability to make images that are relevant to the questions; (6) the ability to make conclusions in their own language. The results showed that subjects with guardian personality type were only able to master the five criteria of mathematical communication ability. The subject was unable to conclude with his own language. The results showed that subjects with idealist personality type were only able to master the five criteria of mathematical communication ability but the subject does not master the third criterian, the subject is unable to write down the reasons for answering the question.

Aktivitas Quick On The Draw dalam Tatanan Pembelajaran Kooperatif Ditinjau dari Self Confidence pada Materi Peluang

Maimunah, Siti, Nasution, Sri Purwanti

Desimal: Jurnal Matematika Vol 1, No 3 (2018): Desimal : Jurnal Matematika
Publisher : Universitas Islam Negeri Raden Intan Lampung

Show Abstract | Original Source | Check in Google Scholar | Full PDF (1033.732 KB)

Abstract

This study aims to determine the effect of the application of quick on the draw activities in the cooperative learning order to the learners outcomes whether there is influence between learners who have self-confidence (high, moderate, low) to learners learning outcomes, to determine whether there is interaction between quick on the draw activities in the cooperative learning arrangement with self-confidence towards learners learning outcomes. This type of research is quasi-experimental design. The research design used was posttest only. The research samples used proportionate stratified random sampling technique. The data collection used was the interview method, documentation, test, and questionnaire. Instruments used for data retrieval are an essay-shaped test and questionnaire-shaped statements. Data analysis used a two-way ANOVA test with the unequal cell. The result of the research (1) that there is the influence of quick on the drawing activity in the cooperative learning arrangement to the learning result. (2) that there is influence between learners who have self-confidence (high, medium, low) on learning outcomes. (3) there is no interaction between quick on the draw activities in the cooperative learning order with self-confidence towards the learners learning outcomes.

Pembelajaran Double Loop Problem Solving Terhadap Kemampuan Pemecahan Masalah Matematis

Pratama, Oktavia Irma, Suherman, Suherman

Desimal: Jurnal Matematika Vol 1, No 3 (2018): Desimal : Jurnal Matematika
Publisher : Universitas Islam Negeri Raden Intan Lampung

Show Abstract | Original Source | Check in Google Scholar | Full PDF (704.963 KB)

Abstract

The purpose of this study was to determine the effect of learning models Double Loop Problem Solving (DLPS) to the ability problem solvimg mathematical students. This research was a quantitative research type of quasi experiment. The sampling technique that used was random class technique. The sampel in this research was the VII B grade as a experimental class and the VII E grade as a control class. Data analysis technique of this research was normality test, homogeneity test and hypothesis test by using one-party t-test. Based on the result of t-test analysis of one party with significant level 5% with description , So the result of the research can be concluded that there was influence of learning models Double Loop Problem Solving (DLPS) to the ability problem solving of mathematically.

Model Pembelajaran Kooperatif Co-Op Co-Op dengan Pendekatan Predict-Observe-Explain untuk Meningkatkan Kemampuan Pemecahan Masalah Matematis

Maryanti, Sri

Desimal: Jurnal Matematika Vol 1, No 3 (2018): Desimal : Jurnal Matematika
Publisher : Universitas Islam Negeri Raden Intan Lampung

Show Abstract | Original Source | Check in Google Scholar | Full PDF (743.864 KB)

Abstract

The purpose of this study was to find our whether cooperative learning model Co-Op Co-Op approach POE (predict-observe-explain) can increase the ability troubleshooting mathematical students. This research is a research Quasi Eksperimental Design and design researchers used  in this study is the design of the control group pretest-postest, with a technique random class. Hypothesis test used in this research is t-test. From the results of statistical tests showed that the value of t_hitung based on the calculation obtained t_hitung = 5.500869, and t_tabel = 2.001 so that t_hitung> t_tabel. So based on these calculation can be concluded that the model cooperative learning CO-Op Co-Op approach POE (predict-observe-explain) can increase the ability troubleshooting mathematical students.

Integrasi Pembelajaran Matematika Problem Based Learning dengan Teknologi Informasi dan Komunikasi

Qurohman, M. Taufik, Sungkar, Muchamad Sobri

Desimal: Jurnal Matematika Vol 1, No 3 (2018): Desimal : Jurnal Matematika
Publisher : Universitas Islam Negeri Raden Intan Lampung

Show Abstract | Original Source | Check in Google Scholar | Full PDF (672.243 KB)

Abstract

Problem-based learning Metode Pembelajaran that is integrated with information and communication technology is expected to be able to provide solutions to increase attractiveness and problem-solving abilities. The purpose of study optimizes PBL Metode Pembelajaran by applying information and communication technology so that there is an increase in the problem-solving ability of the resulting Metode Pembelajaran. Experiments were carried out to get the best Metode Pembelajaran test with indicators of increasing achievement and problem-solving abilities. This research is a Classroom Action Research there are 4 steps: Planning, Action, Observation, and Reflection. The results study The application of contextual learning in applied mathematics courses 2 are: (1) the results of the distribution of questionnaires of students interest in learning integrated problem based learning ICT before and after being given a learning treatment Problem-based learning has changed from cycle I which is 22.87% increased to 89 00% in cycle II, (2) Increasing student learning activities, this can seen from the percentage  activity in the first cycle of 64% classified as quite active, and in the second cycle by 76% and classified as active, (3) improving achievement, activity, and interest in student learning. This increase can be seen by the acquisition of the average of students in the first cycle of 66.88 and with student learning completeness of 56%. The average value in cycle II is 78.27 and the student learning completeness is 100%.

Pengaruh Strategi Pembelajaran Heuristic Vee Terhadap Pemahaman Konsep Matematis Peserta Didik

Rahmawati, Riska, Masykur, Rubhan, Fadila, Abi

Desimal: Jurnal Matematika Vol 1, No 3 (2018): Desimal : Jurnal Matematika
Publisher : Universitas Islam Negeri Raden Intan Lampung

Show Abstract | Original Source | Check in Google Scholar | Full PDF (735.622 KB)

Abstract

The ability to understand the mathematical concepts of learners is important. However, some existing research suggests that understanding of the mathematical concepts of learners is still low. The low understanding of the mathematical concepts of learners is allegedly caused because students are still difficult in solving math problems and less active in the process of learning in class. The implementation of the heuristic vee expenditure strategy is expected to improve the problem. The purpose of this study is to determine the effect of heuristic vee learning strategy on the ability to understand the mathematical concepts of learners. This research type used Quasi-Experiment Design research and sampling technique used is Probability Sampling method with Random Sampling technique. Hypothesis test used in this research is the t-test. The result of statistical test shows that the value of t_hitung based on the calculation obtained t_hitung = 2.096, and t_table = 1.998 so t_hitung>t_table, with a real level of 0.05, in other words, it can be concluded that the students mathematical concept understanding that expected heuristic vee learning strategy better from the conceptual comprehension ability applied by the lecture method. 

Kemampuan Berpikir Kritis Matematis melalui Model Education Coins of Mathematics Competition (E-COC)

Lestari, Yunia, Mujib, Mujib

Desimal: Jurnal Matematika Vol 1, No 3 (2018): Desimal : Jurnal Matematika
Publisher : Universitas Islam Negeri Raden Intan Lampung

Show Abstract | Original Source | Check in Google Scholar | Full PDF (942.779 KB)

Abstract

This study was aimed to improve the ability of critical thinking mathematically through the application of Education Coins Of Mathematics Competition (E-COC) model in class X students. This research is Quasy Experimental Design research. The sampling technique was done by simple random class. Technique of collecting data by using test. Data analysis techniques used t-test. The prerequisite analysis test was performed by Liliefors method for normality test, Bartlett test for homogeneity test and N-Gain. Based on normality test results by using Liliefors test, homogeneity test with Bartlett and N-Gain test, it was found that the test result data from both groups were normal homogeneous and there was an increase in N-Gain. So for testing the hypothesis can be used t-test. Result of research and data analysis obtained t_hitung= 2,704 at N-Gian, while t_tabel=1,999. Therefore t_hitung>t_tabel then H rejected H1 accepted, meaning there was difference of improvement of critical thinking ability of mathematical student’s using model of Education Coins Of Mathematics Education (E-COC) and conventional learning model. Based on the research, it can be concluded the application of Education Coins Of Mathematics Education (E-COC) model can be improved the critical thinking ability of student’s.

Aplikasi Wingeom dan Camtasia Studio untuk Pembuatan Media Pembelajaran Audio Visual

Nosa, Desta Evira, Farida, Farida

Desimal: Jurnal Matematika Vol 1, No 2 (2018): Desimal : Jurnal Matematika
Publisher : UIN Raden Intan Lampung

Show Abstract | Original Source | Check in Google Scholar | Full PDF (1241.515 KB)

Abstract

The purpose of this research is to produce the product in the form of audio-visual learning media using Wingeom and Camtasia Studio and to know the learners response to audiovisual learning media using Wingeom and Camtasia Studio. This research uses research and development method. Learning media development procedure is done through several stages: (1) Analysis in the form of curriculum analysis, characteristic analysis of learners and technology analysis. (2) Design  in the form in the media and the preparation of instruments. (3) Development in the form of media creation process until media validation. (4) Implementation in the form of product testing to learners. (5) Evaluation. This research produces a mathematics learning media that has been declared valid and suitable to be used as a medium of mathematics learning by material experts, media experts, and linguists. From the results of validation by experts, then obtained average percentage of 91% with very good criteria. In the test results the average learner responded well with a percentage of 86%. So it can be concluded that the resulting audiovisual media is considered feasible to be used as a medium of learning mathematics.