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Jurnal Lebesgue : Jurnal Ilmiah Pendidikan Matematika, Matematika dan Statistika
Published by Universitas Bina Bangsa
ISSN : 27218929     EISSN : 27218937     DOI : 10.46306/lb
Core Subject : Science, Education,
Decision Sciences, Operations Research & Management Education Mathematics
Jurnal Lebesgue : Jurnal Ilmiah Pendidikan Matematika, Matematika dan Statistika Jurnal Lebesgue Adalah Jurnal Ilmiah yang terbit secara daring pada bulan April, Agustus dan Desember. untuk menyebarluaskan hasil-hasil penelitian dalam bidang matematika, statistika, aktuaria, matematika terapan, matematika komputasi, Model Pembelajaran Matematika dan pendidikan matematika.
Arjuna Subject : Matematika - Statistik dan Probabilitas
Articles 554 Documents
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PENGENDALIAN PERSEDIAAN BAHAN BAKU BROWNIES DENGAN ANALISIS PERBANDINGAN METODE MIN-MAX, ECONOMIC ORDER QUANTITY DAN PERIOD ORDER QUANTITY Nurhasanah Nurhasanah; Rina Filia Sari; Hendra Cipta
Jurnal Lebesgue : Jurnal Ilmiah Pendidikan Matematika, Matematika dan Statistika Vol. 4 No. 1 (2023): Jurnal Lebesgue : Jurnal Ilmiah Pendidikan Matematika, Matematika dan Statistik
Publisher : LPPM Universitas Bina Bangsa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46306/lb.v4i1.225

Abstract

This research examines raw material inventory control at Hendhy's Brownies. Inventory management analysis is carried out using the Min-Max, Economic Order Quantity (EOQ) and Period Order Quantity (POQ) methods. Based on data analysis and processing, it is known that raw material inventory management using the min-max method has an order quantity of 13,231 kg with an ordering frequency of 5 times and a total ordering cost of Rp. 5,325,387. By using the Economic Order Quantity (EOQ) method, an order quantity of 9001 kg was obtained with an order frequency of 5.3 times and a total order cost of Rp. 3,420,527 Using the Periodic Order Quantity (POQ) method, the order quantity is 4252 kg, the order frequency is 20 times, and the total order price is IDR 3,071,030. Based on the results of the three methods, the EOQ method is the most optimal inventory control method compared to the other two methods. So that the results obtained through the EOQ method can improve forecasting of raw material shortages for companies, so that the use of raw materials becomes optimal
PENGARUH METODE DISCOVERY LEARNING TERHADAP KETERAMPILAN KEAKTIFAN MATEMATIS SISWA Registiani Awaliyah; Dewi Surani; Ratu Milawati
Jurnal Lebesgue : Jurnal Ilmiah Pendidikan Matematika, Matematika dan Statistika Vol. 4 No. 1 (2023): Jurnal Lebesgue : Jurnal Ilmiah Pendidikan Matematika, Matematika dan Statistik
Publisher : LPPM Universitas Bina Bangsa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46306/lb.v4i1.228

Abstract

This research is motivated by the low activity of students in learning. Based on the results of the study it is known that students experience active learning difficulties in class. The purpose of this study is to realize whether the discovery learning model has an impact on the mathematical activeness of class X students. This research is descriptive quantitative research that is experimental in nature. This observation included class X students of SMK Negeri 1 Serang City for the 2022/2023 academic year, even semester, which consisted of 2 classes with a total of 73 students. In this study, the reviewers were able to take a sample of 35 students as an experimental class and a sample of 38 students as a conventional class. This study uses a questionnaire or questionnaire. The data accumulation technique used a questionnaire test or a math activity test in the form of fifteen statements. This data analysis technique uses a descriptive statistical analysis test, namely an analysis that provides a general description of the characteristics of each research variable as seen from the average, maximum and minimum values. Based on the results of observations, it can be concluded that the results of statistical data show that all indicators in the discovery learning model can be categorized as "agree" by looking at the scoring criteria for students' mathematical activity with an average result of 75.42, but not too significant, either good or bad
PENINGKATAN KETERAMPILAN KONEKSI MATEMATIS DAN SELF EFFICACY SISWA BERBASIS VIDEO PENGGUNAAN EDPUZZLE Devina Urfa Fitrianti; Dewi Surani; Ratu Milawati; Namiroh Namiroh
Jurnal Lebesgue : Jurnal Ilmiah Pendidikan Matematika, Matematika dan Statistika Vol. 4 No. 1 (2023): Jurnal Lebesgue : Jurnal Ilmiah Pendidikan Matematika, Matematika dan Statistik
Publisher : LPPM Universitas Bina Bangsa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46306/lb.v4i1.231

Abstract

This study aims to increase mathematical connections and self-efficacy in obtaining positive responses from students who use interactive learning videos. Quantitative method with quasi-experimental techniques for this study sample of 74 students. Research data collection techniques are observation, test instruments, questionnaires and documentation. The results of the t test obtained from the table, reject Ho if Sig.≤α 0.05 then, the value of Sig. <than 0.05 then Ho is rejected and Ha is accepted, therefore the results of the data from both classes are Sig. > than 0.05 then Ho is rejected and Ha is accepted because (t-start -14.81 and t-two start 2.026) the conclusion that can be said is that the increase in mathematical connection ability and self-efficacy in the experimental class is better than that in the control class. The use of edpuzzle as a reference source for active media in class, can be seen from the response to a greater increase in experiments, namely 26.31% and vice versa 17.78%.
PENGARUH MODEL PEMBELAJARAN PROBLEM BASED LEARNING BERBANTUAN FLASHCARD TERHADAP KEMAMPUAN PEMECAHAN MASALAH MATEMATIS Lutvia Nurul Afwah; Zuida Ratih Hendrastuti; Yesi Franita
Jurnal Lebesgue : Jurnal Ilmiah Pendidikan Matematika, Matematika dan Statistika Vol. 4 No. 1 (2023): Jurnal Lebesgue : Jurnal Ilmiah Pendidikan Matematika, Matematika dan Statistik
Publisher : LPPM Universitas Bina Bangsa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46306/lb.v4i1.244

Abstract

The purpose of this study is to analyze the effect of the flashcard-assisted Problem Based Learning learning model on the mathematical problem solving ability. The research design used in this study is quasi experimental design. The research method used is quantitative research. The population in this study was the entire class VIII which amounted to 120 students, then for the sample two classes were taken, namely class VIII A as an experimental class and class VIII B as a control class. The sample in this study was taken by cluster random sampling technique. Data collection techniques include interviews, observations, tests, validation, and documentation. The data analysis technique used is the analysis of the average difference in significance test between the two groups with test prerequisites, namely normality tested using the Liliefors test and homogeneity tested using the Bartlett test. Based on the results of analysis and data processing using the t-test, it was obtained that the Sig. (2-tailed) value < 0.05 which means that the  rejected and  with a significant level of 5%. Based on these results, it can be concluded that there is an influence of the flashcard-assisted Problem Based Learning learning model on the mathematical problem solving ability of grade VIII. This can be a reference that the flashcard-assisted Problem Based Learning model can be used as a relevant learning model to improve students' mathematical problem-solving skills
DESAIN MEDIA PEMBELAJARAN BERBASIS E MODUL PADA MATERI LOGIKA MATEMATIKA Lailatul Lutfiyah; Achmad Buchori; Intan Indiati
Jurnal Lebesgue : Jurnal Ilmiah Pendidikan Matematika, Matematika dan Statistika Vol. 4 No. 1 (2023): Jurnal Lebesgue : Jurnal Ilmiah Pendidikan Matematika, Matematika dan Statistik
Publisher : LPPM Universitas Bina Bangsa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46306/lb.v4i1.245

Abstract

This research is development research that designs products in the form of e-module mathematics for class XI SMA/SMK/MA. This research is focused on the feasibility of the product developed by involving validation from media experts and material experts. The purpose of this research is to develop teaching modules for students in the form of e-modules with mathematical logic material using the 4D model, namely. definition, design, development and dissemination phases. In this study, the development procedure was carried out up to the develop stage because the time for making and validating the product was limited. Data collection techniques were carried out using observation sheets consisting of media expert observation sheets and material expert observation sheets. The data analysis technique refers to the Likert scale and the results are described qualitatively. This mathematical logic e-module was first validated by media and materials experts as well as a student survey. The average percentage of the material expert's assessment was 87.5%, the percentage of the media expert's assessment was 86.8%, and the percentage of the student's conformity assessment was 86.2%, which means that the media from the e-module can be used in a very good category. Thus, this mathematical logic e-module product can be used in mathematics-logic material and can be utilized in teaching mathematics for class XI SMK
IMPLEMENTATION OF SEM-PLS MODELING ON THE IMPACT OF THE REGIONAL COMPETITIVENESS INDEX ON SOCIOECONOMIC MACRO VARIABLES Pardomuan Robinson Sihombing; Ade Marsinta Arsani; Dyah Purwanti; Sigit Budiantono
Jurnal Lebesgue : Jurnal Ilmiah Pendidikan Matematika, Matematika dan Statistika Vol. 4 No. 1 (2023): Jurnal Lebesgue : Jurnal Ilmiah Pendidikan Matematika, Matematika dan Statistik
Publisher : LPPM Universitas Bina Bangsa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46306/lb.v4i1.250

Abstract

The Regional Competitiveness Index (RCI) is one of the essential indicators to measure the ability of a region to compete with other regions in the economic, social, and environmental fields. Increasing regional competitiveness is one of the goals desired by every local government to encourage economic growth and community welfare. This study aims of the research to find out the relationship between the Regional Competitiveness Index (RCI) and socioeconomic macroeconomic variables such as the growth of Gross Regional Domestik Bruto (GRDP), Human Development Index (HDI), Foreign Investment, Domestic Investment, Regional Income and poverty rates in Indonesia in 2022 in Indonesia. The data used are publication data from the National Innovation Research Agency (BRIN) and the Statistic Indonesia (BPS) in 2022. The analysis model used is the PLS Structural Equation Model (SEM) model with SmartPLS software. The results showed that RCI significantly positively affected HDI, GRDP growth, Domestic Investment, Foreign Investment, and Regional Income. On the other hand, RCI significantly negatively affects the percentage of poor people. A comprehensive and targeted policy is needed so that the Regional Saiang Power Index continues to increase. In addition, supervision is needed related to programs that have been running related to regional competitiveness
DESKRIPSI PEMBELAJARAN DARING MATA PELAJARAN MATEMATIKA PADA MASA PANDEMI COVID-19 Karmelia Kristi Malonda; Ichdar Domu; Nicky Kurnia Tumalun
Jurnal Lebesgue : Jurnal Ilmiah Pendidikan Matematika, Matematika dan Statistika Vol. 4 No. 1 (2023): Jurnal Lebesgue : Jurnal Ilmiah Pendidikan Matematika, Matematika dan Statistik
Publisher : LPPM Universitas Bina Bangsa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46306/lb.v4i1.251

Abstract

This study aims intended to describe the difficulties of online learning in mathematics for class IX students of SMP Negeri 9 Satap Langowan. This type of research is a qualitative descriptive study with a sample of class IX students with a total of students 22 and 1 teacher of mathematics in class IX. There are 3 data collection techniques used by researchers, namely: first, interviews with class IX mathematics teachers. Second, a questionnaire filled out by class IX students and thirdly documentation related to research images. Data analysis in this study is data reduction, data presentation, and drawing conclusions. Through observations made, students and teachers experienced difficulties when learning online, there are two kinds of difficulties that are found, namely the general difficulties experienced by schools and teachers is that there is no readiness from teachers when facing online learning because all learning from conventional changes to modern. These changes completely changed both the concept, the strategy method and even the assessment from the teacher to the students. There are also students who have difficulty understanding mathematics learning given by the teacher through the WhatsApp Group application
PENERAPAN FLIPPED CLASSROOM DIINTEGRASIKAN DENGAN PROBLEM BASED LEARNING TERHADAP KEMAMPUAN NUMERASI SISWA SMA Khoirin Nisya; Hepsi Nindiasari
Jurnal Lebesgue : Jurnal Ilmiah Pendidikan Matematika, Matematika dan Statistika Vol. 4 No. 1 (2023): Jurnal Lebesgue : Jurnal Ilmiah Pendidikan Matematika, Matematika dan Statistik
Publisher : LPPM Universitas Bina Bangsa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46306/lb.v4i1.253

Abstract

This study aims to determine the effect of applying the Flipped Classroom learning model integrated with Problem Based Learning on the numeracy skills of high school students. The research sample consisted of 39 experimental class students who used the flipped classroom model integrated with Problem Based Learning and 39 control class students who used the Problem Based Learning model from the population of SMAN 5 Serang city. The research method used was quasi experiment. The instrument used in collecting data was a test instrument in the form of a pretest and postest consisting of three description questions. The data were analyzed by one-way anova test with a significance level of 0.05 to see the average difference between the two classes. The results showed that the pretest value of numeracy skills obtained a Sig. 0.159 > 0.05 so that H_0 is accepted. meaning that the experimental class and control class have the same initial ability. then for the posttest value of numeracy skills obtained a Sig value. 0.21 <0.05 so that H_0 is rejected. This means that there is an average difference in numeracy skills between the experimental class and the control class. When viewed from the average numeracy skills of experimental class students are smaller than the control class, namely 40.05 < 51.51. Thus, the Problem Based Learning learning model is better than the Flipped Classroom model in improving the numeracy skills of high school students on the material of the system of linear equations of three variables
PERHITUNGAN PRODUKSI OVERBURDEN DENGAN MENGGUNAKAN METODE OVERALL EQUIPMENT EFFECTIVENESS (OEE) DAN NILAI OEE DARI EXCAVATOR KOBELCO SK-200 Vitri Rospitasari; Diana Purwandari; Aditya Budi Nugraha
Jurnal Lebesgue : Jurnal Ilmiah Pendidikan Matematika, Matematika dan Statistika Vol. 4 No. 1 (2023): Jurnal Lebesgue : Jurnal Ilmiah Pendidikan Matematika, Matematika dan Statistik
Publisher : LPPM Universitas Bina Bangsa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46306/lb.v4i1.254

Abstract

PT. Starindo Sakti Award is the place to carry out this research which is located in Pangandaran. This study uses the Overall Equipment Effectiveness (OEE) method to optimize mining equipment in achieving production targets for overburden stripping. Overall Equipment Effectiveness (OEE) is a method that has been accepted globally to measure the level of a company and the potential for improvement of the production process. Overall Equipment Effectiveness (OEE) aims to evaluate the performance of an equipment used in industry. The factors to be calculated on the OEE component are: Availability Factor, Utilization Factor, Speed ​​Factor, Bucket Factor, Overall Equipment Effectiveness (OEE) of Equipment. The results of the calculation of overburden production using the OEE method after improving working time by reducing standby time and increasing operating hours, the overburden production obtained from the Kobelco SK-200 excavator is 20,160.22 BCM. While the Overall Equipment Effectiveness (OEE) value of the Kobelco SK-200 excavator after repairs is 60%.
PENERAPAN MODEL PEMBELAJARAN PJBL UNTUK MENINGKATKAN PEMAHAMAN KONSEP PEMBELAJARAN MATEMATIKA MATERI MEMBANDINGKAN DAN MENGURUTKAN BILANGAN CACAH Dian Ristyawati
Jurnal Lebesgue : Jurnal Ilmiah Pendidikan Matematika, Matematika dan Statistika Vol. 4 No. 1 (2023): Jurnal Lebesgue : Jurnal Ilmiah Pendidikan Matematika, Matematika dan Statistik
Publisher : LPPM Universitas Bina Bangsa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46306/lb.v4i1.255

Abstract

Improving the learning outcomes of Class 1A students of SDN 2 Girimoyo in Mathematics subjects on sorting and comparing numbers 1-20 by using the PJBL learning model. The Classroom Action Research method is carried out collaboratively between researchers as learning innovators and learning implementers. Student learning outcomes improved. Both from the attitude and skill aspects. And summative learning outcomes or knowledge also increased, from Pre-Cycle the classical level of completeness was only 45% in Cycle I increased to 64% and in Cycle I increased to 82%. The use of the PJBL Learning model in Mathematics subjects on sorting and comparing small numbers 1-20 in Class 1A SDN 2 Girimoyo experienced a significant increase in completeness. Thus the PTK carried out can be declared successful in improving student learning outcomes

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