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901	Mathematics	ABS-1081
Frequency Analysis of Mathematical Problem Answers through Jacobs Method Erdawaty Kamaruddin Faculty of Engineering, Universitas Negeri Jakarta, Indonesia Abstract Evaluation is the process of determining the value of student learning success in one period. Evaluation functions to find out the results that have been achieved, whether they are in line with expectations, what factors are inhibiting and how to overcome these obstacles. The evaluation also functions to determine student learning progress, compare achievement with student capacity, and to interpret students level of maturity. The evaluation process is done through student scores on exam questions. The score obtained will illustrate the students true abilities. But sometimes there is an imbalance of scores on students due to obstacles, such as anxiety, carelessness, or poor health conditions. Based on these assumptions it is necessary to conduct a study regarding the acquisition of student scores. The purpose of this study was to determine the reasonableness of mathematical scores through the analysis of the frequency of the answer questions. The research data were analyzed using the Jacob method. This research is using experimental method. The results of data analysis show that there are students who have unnatural scores. Thus it can be concluded that through the analysis of the frequency of the answer the questions can be seen the fairness of student scores. Keywords: mathematical score, Jacobs method, correct frequency of answers. Share Link | Plain Format | Corresponding Author (Ir. Dra. Erdawaty Kamaruddin, M.Pd.)

902	Mathematics	ABS-828
Selection of Variables In Generalized Linear Mixed Model For Smoker In Jambi Province R Warti1, K A Notodiputro2, B Sartono2 1 Department of Mathematics Education, UIN Sulthan Thaha Saifuddin, Jambi, 36363, Indonesia. 2 Department of Statistics, IPB University, Bogor, 16680, Indonesia Abstract There are currently more than 67 million adult smokers or about 39% of the adult population in Indonesia. Data on Basic Health Research (Riskesdas) Ministry of Health in 2018 showed that there was an increase in the smoking prevalence of the population aged 18 years from 7.2% to 9.1%. Many factors cause a person to smoke, both originating from oneself and environmental factors. The statistical problem that arises is how to select the factors that influence people to smoke. This study aims to select variables in the generalized linear mixed model with the case of smokers in Jambi Province. Respondents in this study were 160 people taken from the 2017 SDKI data. The variables were selected using the Lasso penalty and the Boosting function, which used the EM and REML algorithms. The analysis shows that the variables selected from the two methods are occupation, the level of welfare, and the family members who smoke. Based on the AIC value, the best model obtained from the selection of variables with the Boosting function and REML algorithm Keywords: EM Algorithm, REML Algorithm, Boosting, Lasso, Smoker, Variable Selection Share Link | Plain Format | Corresponding Author (Rini Warti)

903	Mathematics	ABS-325
Improvement of Student Mathematics Learning Outcomes Through Kahoot Learning Games Application at Elementary School Deane Umboh, Deysti Tarusu, Arita Marini, Mohamad Syarif Sumantri Universitas Negeri Jakarta Abstract The purpose of this research is to improve the student mathematics learning outcomes through Kahoot learning games application at elementary school. This classroom action research adopted from Kemmis and Mc Taggart Model was conducted in three cycles for the fourth grade as many as 22 students at 02 Public Elementary school in Tomohon, North Sulawesi, in Indonesia. The result of this study shows there is an improvement of students learning outcomes from cycle one to cycle three reaching 64, 72, and 81 from the maximum score of 100. Percentage of teacher and student activities increased from cyle one to cycle three achieving 77, 80, and 86 %. It can be concluded that application of Kahoot learning games can improve the student mathematics learning outcomes at 02 Public Elementary school in Tomohon, North Sulawesi, in Indonesia. Keywords: student mathematics learning outcomes, Kahoot learning games aplication Share Link | Plain Format | Corresponding Author (Deane Umboh)

904	Mathematics	ABS-589
STUDENTS’ PROBLEM SOLVING ON MATHEMATICAL PROPORTION Nyamik Rahayu Sesanti and Dyah Triwahyuningtyas Elementary School Teacher Education Study Program, Universitas Kanjuruhan Malang Indonesia Abstract This study analyzed problem solving abilities of the students on mathematical differential. Descriptive qualitative applied in this study with 26 students of secondary school; 16 male and 11 female. Data analysis reveals the ability of students problem solving abilities, namely 1) understanding the problem, 2) drawing up a problem solving plan, 3) implementing the solution and 4) re-checking the solution. The instruments used were test and interview. The findings showed that more than 50% mistake happened on drawing up a problem solving plan and re-checking the solution. So that to reduce the mistake we as lecturer should train the students in mathematical problem solving strategies. Keywords: mathematics, problem solving, propotion Share Link | Plain Format | Corresponding Author (Dyah Triwahyuningtyas)

905	Mathematics	ABS-335
INFLUENCE OF LEARNING STRATEGY AND AUTHENTIC ASSESSMENT TOWARD STUDENTS’ MATHEMATICAL PROVING ABILITY BY CONTROLLING PREREQUISITE CONCEPTS UNDERSTANDING Ellis Salsabila(a), Wardani Rahayu(b), Pinta Deniyanti Sampoerno(a) a). Pendidikan Matematika FMIPA UNJ Jl. Rawamangun Muka Jakarta Timur, Indonesia b). Penelitian dan Evaluasi Pendidikan PPs UNJ Jl. Rawamangun Muka Jakarta Timur, Indonesia Abstract This research aimed to obtain information about the influence of learning strategy and authentic assessment of students’ mathematical proving abilities by controlling prerequisite concepts understanding. This was a quasi experimental study with all students of Mathematics Education Study Program of FMIPA UNJ in the 2016/2017 academic year as population, and 4 classes were selected as the samples. The dependent variable was the mathematical proving ability (Y) and the independent variable include the learning strategy (A) and the authentic assessment (B) and the covariate variable was prerequisite concepts understanding (X). The data were analyzed with the two ways analysis of covariance (ANCOVA) to test the main effect and the interaction effect, followed by t-test to test one side’s main effect. From the results, it was obtained that after controlling prerequisite concept understanding, students’ mathematical proving abilities were: 1) higher in the application of abductive-deductive strategy compared to the abilities in the application of conventional learning; 2) higher in the application of performance assessment techniques compared to the abilities in the application of portfolio assessment techniques; 3) there was an interaction effect in the application of learning strategy and authentic assessment toward students’ mathematical proving abilities. Keywords: mathematical proving ability, prerequisite concepts understanding, learning strategy, authentic assessment Share Link | Plain Format | Corresponding Author (Ellis Salsabila)

906	Mathematics	ABS-351
Learning Mathematics Through Media Scales of Lamps from Used Goods Ade Mutiarawati(a*), Siti Nurhayati (a), Arita Marini (b), Mohamad Syarif Sumantri (b) Universitas Negeri Jakarta, Jalan Rawamangun Muka No: 1 Jakarta Timur, Indonesia Abstract Abstract. This study aims to determine the learning of mathematics through light scales media from used goods. Students understanding of weight comparison is still experiencing difficulties. Students often mistakenly distinguish heavy objects from light objects. Teachers have tried to make improvements through learning methods, but only 20% of student learning outcomes have been completed. Therefore, researchers conduct action research studies in the form of treatment for learning media applications. The research subjects were 30 first grade students. Data collection techniques in this study are through observation, tests, and documentation. The results of the study prove that the use of lamp scales media of used goods in mathematics learning that is in the initial conditions, 24 students have not reached skills, but in the first cycle, the number of students who have not reached mastery decreased to 15 students and in the second cycle all students have reached completeness. This study concludes that the use of media scales lamps from secondhand goods can develop mathematical learning understanding, especially in the theory of weight comparison. Keywords: Lamp Scales from Used Goods, Mathematics learning outcomes. Share Link | Plain Format | Corresponding Author (siti nurhayati)

907	Mathematics	ABS-610
DEVELOPMENT OF MATH EDUCATION COMICS THROUGH DIGITAL ANDROID Rida Fironika Kusumadewi; Amos Neolaka; Mahmuddin Yasin Universitas Islam Sultan Agung Semarang Universitas Negeri Jakarta Universitas Negeri Jakarta Abstract This research aims to develop mathematics education comics through digital android. This type of research is a combined RND research from Brogg & Gall and MPI. The product was developed through several stages by manually designing, scanning, providing color with photoshop, giving text balloons after that the process of digitizing android is done using powerPoint, Ispring and Web2APK which can be operated through android, gadgets offline and online. The evaluation of this product was assessed by several experts namely experts in language, material, graphic design and colleagues. Data collection techniques using a questionnaire and then analyzed descriptively quantitative. The results of the assessment of experts get good criteria from several expert validators, language, material, and graphic design conclude that this product is feasible to use. Keywords: Comics, Mathematics Education, Android Share Link | Plain Format | Corresponding Author (RIDA FIRONIKA KUSUMADEWI)

908	Mathematics	ABS-357
APPLICATION OF TYPE COOPERATIVE LEARNING MODELS MISSOURI MATHEMATICS PROJECT (MMP) TO INCREASE MATH LEARNING RESULTS Hiznu Sobar, Riska Novalia, Raka Ismaya, Arita Marini, Mohamad Syarif Sumantri Pascasarjana Universitas Negeri Jakarta Abstract This study aims to improve student learning outcomes fourth grade MI At-Taqwa 50 Mandala Jaya Tarumajaya Bekasi Regency. This research is action research. The subjects of this study are all students of class IV which amounted to 28 students. Factors studied in the form of improved student learning outcomes. Instruments at each cycle. The data collected at each activity result of learning from cycle implementation, analyzed by using the mean of student learning result and percentage of student learning result which counted by descriptive percentage. The results showed that the average of students in the first cycle of 74.28 with 82% classical completeness increased average in cycle II to 83.92 with 93% classical completeness. When viewed from these results, the model of learning type of Missouri Mathematics Project to improve student learning outcomes in learning mathematics. Keywords: Missouri Mathematics Project, learning outcomes Share Link | Plain Format | Corresponding Author (Hiznu Sobar)

909	Mathematics	ABS-614
The Performance of Multivariate Adaptive Regression Splines (MARS) in the Selection Process of Potential Debtors to Comply with Sustainable Finance Policy Astri Afrilia, S.Si., M.Stat (a), Agus Joharudin, MIntBus (b), Dr. Muhammad Zaky, M.Si (b), Budi Budiman, M.Si., M.Ag (b), Meli Fauziah, S.Pd., M.A (b) a) UIN Sunan Gunung Djati Bandung, Jalan AH Nasution 105, Bandung 40614, Indonesia *) astriafrilia88[at]uinsgd.ac.id b) UIN Sunan Gunung Djati Bandung, Jalan AH Nasution 105, Bandung 40614, Indonesia Abstract Financial Service Authority (OJK) introduced a new policy on Sustainable Finance to financial institutions such as Banks. It is currently a hot issue that needs to be implemented in the selection process of potential debtors. Consequently, credit rating system needs to be renewed. Statistical methods can help to include permits and environmental impact in selection process. Thus, this study intends to formulate a credit rating model for productive debtors. This study used a quantitative method using Multivariate Adaptive Regression Splines (MARS). Our study’s significant finding is that the credit rating model for productive debtors that has been formulated has type I error of 0.00% and type II error of 15.78%. Furthermore, The authors believe that this model can be used to asses potential debtors’ credit rating while adhering to the policy of Sustainable Finance. Keywords: Credit rating, Multivariate Adaptive Regression Splines, Sustainability finance. Share Link | Plain Format | Corresponding Author (Astri Afrilia)

910	Mathematics	ABS-626
GRAPHIC COMMUNICATION IN DETECTING OUTLIER CASES IN TIME COLUMN CONTROL DIAGRAM Enjang (a), Muklis Aliyudin (a), Farid Soleh Nurdin (a*), Muhibudin Wijaya Laksana (a), Sarbini (a) (a) UIN Sunan Gunung Djati Bandung * farid.s.nurdin[at]uinsgd.ac.id Abstract Abstract.Control diagrams are graphical communication media that can be used as tools in the process of controlling statistics statistically to assist in monitoring and improving a quality process by helping to separate specific cause and general cause variables. Basically the control diagram plots the area of acceptance of a hypothesis test. This study aims to detect disruptive causes in the control diagram in time series cases and to justify the statistical model in accordance with the procedure. A process is said to be controlled if the observational data from that process behaves like random iid variables (independent identically distributed), and if it is not controlled, it is out of control. The study uses 25 days time series observational data in PT. Guccitex Cimahi. In this time frame analysis, research that is influenced by specific causes can be treated as outliers of the time series model and can be detected by outlier detection methods. The results in this study explain that a traditional control diagram is very dependent on the assumption of iid (independent identically distributed). Application in real life faces observations that are not iid (independent identically distributed), which show the effects of trends, seasonality, and other influences. The control diagram is in principle the same, using time series analysis to overcome these effects by plotting the area of acceptance of a hypothesis test, but if the process is not controlled, the control diagram cannot provide any guidance, so it is necessary to do a data analysis using analysis time series. Keywords: Full Diagram, Outlier Detection, Time Guide Analysis Share Link | Plain Format | Corresponding Author (Farid Soleh Nurdin)

911	Mathematics	ABS-882
Root Square Mean Labeling of Some Graphs Obtained from Path Rismawati Ramdani and Astrid Yuni Fanisa Department of Mathematics Faculty of Science and Technology UIN Sunan Gunung Djati Bandung, *rismawatiramdani[at]uinsgd.ac.id Abstract For any graph G with p vertices and q edges. A labeling f of G is said to be a root square mean labeling of G if f is a mapping of vertex set of G to integers {1,2,…,q+1} such that the induced function f* of edge e = (u,v) is defined by f*(e) =r ⌊(√(u^2 )+v^2)/2⌋ or ⌈(√(u^2 )+v^2)/2⌉ is an injection function. A graph G is called a root square mean graph if G can be labeled by a root square mean labelling. In this paper we prove that middle graph of path and disjoint union of path and the middle graph of path, are root square mean graphs. Keywords: disjoint union, middle graph, root square mean labelling, path Share Link | Plain Format | Corresponding Author (Rismawati Ramdani)

912	Mathematics	ABS-378
Variance of Analysis for Statistics Lecturer Performance in University Accreditation to Get the Best Lecturer Asti Meiza; Nani Nuranisah Djamal; Yonathan Natanael UIN Sunan Gunung Djati Bandung Abstract One component of the assessment for higher education accreditation which determined by Badan Akreditasi Nasional-Perguruan Tinggi (BAN-PT) is lecturer performance. This study aims to compare the performance evaluations of three statistics lecturers for four aspects, namely pedagogic, professionalism, personality and social abilities based on the results of the evaluation of learning on the academic portal filled by students at the end of each semester. The first novelty is the development of an online evaluation instrument which is adjusted to Sistem Akreditasi Perguruan Tinggi Online (SAPTO). The second novelty is this study uses statistical analysis to get the best lecturer character to predict the future. The participants are 149 students taking statistics lecture. The data analysis is One Way Analysis of Variance (ANOVA). The results showed that value F = 3.804 and p < 0.05, it means that there is a personality difference in one of the statistics lecturers from the other two statistics lecturers, whereas for the other three aspects the three statistics lecturers are homogeneous. Keywords: accreditation, analysis of variance, lecturer performance Share Link | Plain Format | Corresponding Author (Asti Meiza)

913	Mathematics	ABS-125
3D Grapher Application: Mathematical Spatial Ability Fida Nisaa Kusnadi, Tika Karlina Rachmawati*, Agus Hikmat Syaf, and Hamdan Sugilar. Department of Mathematics Education, UIN Sunan Gunung Djati Bandung, Jl. A.H Nasution No. 105, Bandung 40614, Jawa Barat, Indonesia. *tikakarlinarachmawati[at]uinsgd.ac.id Abstract 3D Grapher application is a user-friendly application that supports learning to three-dimensional geometry. The purpose of this study was to determine the increase of students’ mathematical spatial ability by using the 3D Grapher application. This study uses quasi-experiment method with a tutorial model conducted on class VIII students one of junior high school in Bandung City. The instruments research by test and the research data were analyzed by t-independent test. Based on the results of research that improves mathematical spatial ability of students who get 3D Grapher based tutorial learning with an average n-gain score 0,56 better than students who get conventional learning with an average n-gain score 0,44. Thus learning through the 3D Grapher application can be used as an alternative to improve the mathematical spatial abilities. Keywords: 3D Grapher; Tutorial; Geometry Share Link | Plain Format | Corresponding Author (Fida Nisaa Kusnadi)

914	Mathematics	ABS-130
Mathematical Critical Thinking with Kahoot Elis Maulidah, Agus Hikmat Syaf, Tika Karlina Rachmawati*, and Hamdan Sugilar UIN Sunan Gunung Djati Bandung Departement of Mathematics Education, UIN Sunan Gunung Djati Bandung, Jl. A.H Nasution No. 105, Bandung 40614, Jawa Barat, Indonesia. *tikakarlinarachmawati[at]uinsgd.ac.id Abstract The purpose of this study was to determine the improvement of students mathematical critical thinking skills after obtaining mathematics learning using Kahoot-based Spontaneous Group Discussion models. The research method used was a quasi-experimental method with the Nonequivalent Control group Design. The subjects of this study were class X students in one of Bandungs high schools. Data obtained using a research instrument in the form of a test. Based on the results of research and processing of N-Gain data, it was found that increasing students mathematical critical thinking skills after obtaining mathematics learning using the Spontaneous Group Discussion (SGD) model based on kahoot with an average N-Gain of 0.76 is better than conventional learning with average N-gain is 0.56. Keywords: Kahoot, N-Gain, and Spontaneous Group Discussion Share Link | Plain Format | Corresponding Author (Elis Maulidah)

915	Mathematics	ABS-907
Mathematical Communication Skills of Students through Geogebra-Assisted ELPSA Approach Iyon Maryono, Siti Rodiah, Agus Hikmat Syaf UIN Sunan Gunung Djati Bandung Sekolah Pasca Sarjana Universitas Pendidikan Indonesia Abstract The purpose of this study was to see the development of students mathematical communication skills between those who obtained the ELPSA learning model assisted by GeoGebra and those who obtained the conventional learning model (direct-instruction). This study uses a quasi-experimental method. The results showed that the achievement and improvement of mathematical communication skills of students who obtained the ELPSA learning model assisted by GeoGebra better than those who obtained the direct-instruction model. The GeoGebra-assisted ELPSA learning model can be used as an alternative in developing mathematical communication skills, especially in the transformation geometry material in secondary schools. Keywords: ELPSA, Geogebra, Mathematical Communication Skills Share Link | Plain Format | Corresponding Author (Iyon Maryono)

916	Mathematics	ABS-140
Sub-exact Sequence on Hilbert Space Bernadhita H. S. Utami *(a), Fitriani (b), Mustofa Usman (b), Warsono (b) (a) Doctoral Program of Mathematics and Natural Science, Faculty of Mathematics and Natural Science, University of Lampung, Lampung, Indonesia *bernadhita.herindri.s[at]mail.ugm.ac.id (b) Department of Mathematics, Faculty of Mathematics and Natural Science, University of Lampung, Lampung, Indonesia Abstract The notion of the sub-exact sequence is the generalization of exact sequence in algebra especially on a module. A module over a ring R is a generalization of the notion of vector space over a field F. Refers to a special vector space over field F when we have a complete inner product space, it is called a Hilbert space. A space is complete if every Cauchy sequence converges. Now, we introduce the sub-exact sequence on Hilbert space which can later be useful in statistics. This paper aims to investigate the properties of the sub-exact sequence and their relation to direct summand on Hilbert space. Keywords: complete inner product space, direct summand, Hilbert space, sub-exact sequence Share Link | Plain Format | Corresponding Author (Bernadhita Herindri Samodera Utami)

917	Mathematics	ABS-141
Matlab Graphical User Interface On Mathematics Communication Skills Rahayu Kariadinata (a*), Ahmad Rifai Nurdiansyah (a), Yayu Nurhayati Rahayu (a), Hamdan Sugilar (a), Iwan Gunawan (b) (a) Department of Mathematics Education, UIN Sunan Gunung Djati Bandung Jl. A.H. Nasution 105, Bandung 40614, Indonesia (b) Universitas Langlangbuana, Bandung Jl. Karapitan No.116, Kota Bandung 40261, Indonesia *hamdansugilar[at]uinsgd.ac.id Abstract The purpose of this research is to know the process of development Matlab (Matrix Laboratory) Graphical User Interface as a media learning mathematics to facilitate the study of Statistics material. This research and development uses the ADDIE development model, carried out through five stage of analysis, design, development, implementation (implementation / execution), and evaluation. Validation of Matlab (Matrix Laboratory) Graphical User Interface is carried out by an expert in statistics and two experts in learning media. The subject of the study were students of class VIII at one of the Bandung Public Middle School, West Java. The research instruments were mathematics communication test, questionnaires, and media validation sheets. The result showed that, based on expert validation and limited testing, the development Graphical User Interface Matlab (Matrix Laboratory) was considered to be very good and feasible and improved students mathematical communication skill and that students responded positively. The implications of This study are to facilitate students in communication mathematics by optimizing the use of computer media as a learning tool. Keywords: Matlab (Matrix Laboratory) Graphical User Interface, Mathematical Communication Skills Share Link | Plain Format | Corresponding Author (Ahmad Rifai Nurdiansyah)

918	Mathematics	ABS-147
Mathematical Reasoning Through Symbolab Match Mine Learning W Susilawati (a), S Y Agustin (a)*, I Nuraida (a) (a) Mathematics Education, UIN Sunan Gunung Djati Bandung, Jl. Cimencrang, Bandung, Indonesia *sendi.yoyogaga[at]gmail.com Abstract Lack of the ability of students mathematical reasoning requires professional teachers to arrange technology-based teaching materials. The aim of the study is to improve students mathematical reasoning abilities through symbolab-based match mine learning. The quasi-experimental method involved samples of 56 students from SMK (Vocational High School) Negeri 4 Bandung Indonesia, categorized in two classes; experiment class 28 students and control class 28 students. Instrument of mathematical reasoning ability. Quantitative data analysis using t-test, Man-Withney U test, two-way ANAVA. Findings show the differences in increasing in the mathematical reasoning abilities of students who obtain symbolab-based match mine learning, is better than conventional learning. Students have skill at constructing mathematical concepts through manipulation, submitting conjectures, making generalizations, giving logical reasons and giving a proof of the truth of algorithms. Symbolab-based match mine learning facilitates conflict processes, discovery processes, social interaction processes, and reflective processes, so that the students mathematical reasoning abilities are increased. Keywords: Mathematical Reasoning; Symbolab; Match Mine Share Link | Plain Format | Corresponding Author (Sendi Yoga Agustin)

919	Mathematics	ABS-916
Equivalence between categories of supermodules Ibnu Hadi(a*), Yudi Mahatma(a**) a) Faculty of Mathematics and Natural Science, Universitas Negeri Jakarta Jalan Rawamangun Muka, Jakarta, 13220, Indonesia *) ibnu_hadi[at]unj.ac.id **) yudi_mahatma[at]unj.ac.id Abstract Let R be commutative algebra with unit element. Given any R-module U, there exists a category C_U whose objects are all pairs (N.M) where N is direct sum of U and M contains U. It has been shown that if W is a direct summand of U then there exists a functor from C_U to C_W . Further, W if and U are isomorphic then there exists category equivalence between C_U and C_W . Keywords: category, functor, category equivalence Share Link | Plain Format | Corresponding Author (ibnu hadi)

920	Mathematics	ABS-918
Solving Interval Linear System Using Gradient Vector Ibnu Hadi(a*), Norman Setyadi(a**), Debby Agustine (a***) a) Faculty of Mathematics and Natural Science, Universitas Negeri Jakarta Jalan Rawamangun Muka, Jakarta, 13220, Indonesia *)ibnu_hadi[at]unj.ac.id **) normansetyadi[at]gmail.com,normansetyadi_mtk15s1[at]mahasiswa.unj.ac.id ***)debbyagustine[at]gmail.com Abstract In this paper we represent an algorithm for finding the interval solution using gradient vector. This algorithm applies the optimization problem based on gradient vector in order to obtain the lower bound and upper bound of the interval solution. In this method, initial solution has been used with stopping criteria to compute the solution. An example problem is solved to represent this method with μ=0.5, μ=0.1, μ=0.05, and μ=0.01. By this method, we obtain optimal numerical results with different μ. Keywords: interval, gradient vector, stopping criteria Share Link | Plain Format | Corresponding Author (ibnu hadi)

921	Mathematics	ABS-928
The Application of Quantum Learning Teaching Models to Improve Students Mathematics Learning Motivation Miswan Gumanti Sekolah Tinggi Manajemen Informatika dan Komputer Pringsewu Abstract To paying attention to the problems in terms of cognitive, teachers should also pay attention to the problems of psychological or affective in the learning process. Not a few students who have problems in terms of psychological or affective one is the low learning motivation of students. This study aims to describe the effectiveness of the Quantum teaching-learning model on mathematics learning in terms of aspects of student learning motivation. The type of experiment in this study was quasi-experimental research (quasi alphabets experiment) and experimental design that used up was one-Group Pretest Post-test. The population in this research was the whole grade VIII of SMP Muhammadiyah 1 Adiluwih, Pringsewu regency, Lampung which was grade VIII-A as the sample. The independent variable in this study was a model of Quantum Learning Teaching and the dependent variable in this study was the student motivation mathematics learning. The instrument used was the student learning motivation questionnaire. To test the effectiveness of the Quantum Learning Teaching model, the data were analyzed by using one-sample t-test. The results showed that the model of Quantum Learning Teaching effective motivational aspects of learning mathematics. Keywords: Motivation, Learning Mathematics, Quantum Learning, Model Teaching Share Link | Plain Format | Corresponding Author (Miswan Gumanti)

922	Mathematics	ABS-931
Some properties of Max-Plus Algebra and Generalized Inverses on 2x2 Matrices Integers Modulo 3 Ibnu Hadi(a*), Yudi Mahatma(a**), Andita Sulistyaningrum(a***) a) Faculty of Mathematics and Natural Science, Universitas Negeri Jakarta Jalan Rawamangun Muka, Jakarta, 13220, Indonesia *) ibnu_hadi[at]unj.ac.id **) yudi_mahatma[at]unj.ac.id ***) andita2000[at]gmail.com Abstract The properties of Max Plus Algebra can be applied to the matrix. Furthermore, the generalized inverses in a matrix can also be related to this algebra. This paper discusses some properties of these concepts on 2 x 2 matrices integers modulo 3. Here, we derive the properties of matrices in this algebra. Then, the generalized inverses in this matrices is formed. We conclude that there is some relation betweeen the matrices and its generalized inverses. Some examples of matrices are given to ilustrate the properties Keywords: Max-Plus Algebra, Generalized Inverses, Matrices Integers Modulo 3 Share Link | Plain Format | Corresponding Author (ibnu hadi)

923	Mathematics	ABS-423
Development of Matemathic Media Games Education Based on e-learning in the Planting of Basic Concepts in Numeracy Nurfatanah (a*), Chrisnaji Banindra Yudha (b), Arita Marini (b), M. Syarif Sumantri (b) a) Elementary Education Universitas Negeri Jakarta jalan Rawamangun Muka, Rawamangun 13220, Indonesia b) Elementary Education Universitas Negeri Jakarta jalan Rawamangun Muka, Rawamangun 13220, Indonesia Abstract The purpose of this research is to design and create an educational game based on e-learning Matemathic on the Basic Concept of Counting. The method of this research is research and development. The method used in data collection is observation and documentation, and the method of data analysis is quantitative descriptive analysis techniques. The results of this study are in the form of an educational game based on e-learning Matemathic in the Numeracy Basic Concept Planting as a learning media for class V. Material expert validation of learning media material based on the quality of the material and the usefulness of the material gets a percentage of eligibility of 76, 56%.The assessment of media experts on the quality of instructional media is based on the characteristics of the media in learning multimedia gets a percentage of eligibility of 86, 68%.The results of the assessment on product trials are divided into three aspects, namely aspects of screen display design, program operation, navigation, and expediency. Overall assessment results of 68 grade V students obtained a percentage of eligibility of 92,94 % so that this learning media is appropriate to be used as grade V mathematics learning. Keywords: Games Education Mathematics, Android, Elementary Education Share Link | Plain Format | Corresponding Author (Nurfatanah Nurfatanah)

924	Mathematics	ABS-428
Mathematical Connection Through Geogebra Eliciting Activities W Susilawati, I Maryono and I M Halim Departemen Mathematics of Education, UIN Sunan Gunung Djati Bandung. Abstract The low quality of mathematical connection skills requires professional teachers to understand the use of technology. The purpose of this paper is to analyze differences in the improvement of mathematical connection skills between students who study geogebra-assisted eliciting activities models with conventional learning, quasi-experimental methods, Nonequivalent Control Group Design. The experimental class and the control class were chosen based on two homogeneous groups. The implementation involves two classes, class VIII-D with 30 students as GeoGebra assisted learning experimental model and VIII-A class with 27 students as conventional learning control class. The instrument uses a mathematical connection ability test and independent T-Test data analysis. 336/5000 Findings: There is a difference in the increasing ability of mathematical connections between students learning the GeoGebra eliciting activities model rather than conventional learning. Geogebra makes understanding construction, interaction, and reflection easier. Overall learning can improve students mathematical connection skills Keywords: Mathematical connections, GeoGebra eliciting activities, math education Share Link | Plain Format | Corresponding Author (Wati Susilawati)

925	Mathematics	ABS-431
Mathematical communications through project based learning based on android W Susilawati, N Sobarningsih, A Jihad, A H Syaf, M A Ridwan Departemen Mathematics of Education, UIN Sunan Gunung Djati Bandung Abstract The lack of multimedia applications in schools and the low mathematical communication ability of students, as an alternative to using Android. The purpose of the research is to improve students mathematical communication ability through android based learning project. The quasi experimental study at Bandung Indonesia Junior High School implicated 55 students as samples, 29 students in class VIII C as an experimental class and 26 students in class VIII D as a control class. Mathematical communication ability test instrument. Data analysis: independent T test, two way ANAVA test. The findings: Improved Communication of students who get learning on Android based learning projects was higher than students who get conventional learning. There were no difference in the achievement of mathematical communication between students who get an Android based learning project and conventional learning based on mathematical basic knowledge in the high, medium and low categories. Android based learning project facilitates inventions process, reflective, the material is easy to understanding so that students mathematical communication skills increase. Keywords: Mathematic Communication, Mathematic Education, Multimedia Learning Share Link | Plain Format | Corresponding Author (Wati Susilawati)

926	Mathematics	ABS-435
Mathematic connections through saintific prezi and lectora inspire W Susilawati, I Nuraida, and G Puspita Pendidikan Matematika, UIN Sunan Gunung Djati Bandung. Abstract The low quality of students in understanding the relevance of mathematical concepts, demands an ICT-based learning process. The purpose of the paper was to determine students mathematical connection abilities. Method quasi eksperiment, nonequivalent control group design. There were three class group, two groups as experimental and one group by control class. Sample chosen by three X IPA SMA Negeri 27 Bandung, there X IPA-1, X IPA-2, dan X IPA-5 with 28 student each class. Instrument Ability test mathematical connection. Data analisys T-test Independent, one way ANAVA. Findings: different in improvement and achievement of mathematical connections abilities between student who us learning scientific based Prezi better than learning based lectora inspire and conventional learning. Thus, scientific learning based prezi and Lectora inspire required student for construct, finding problems, and implement interactive media so as can improve student’s ability of connection mathematical. Keywords: Mathematic Communication, Self Efficacy, Mathematic Education Share Link | Plain Format | Corresponding Author (Wati Susilawati)

927	Mathematics	ABS-437
Critical Thinking Through Example Non Example Wingeom Software W Susilawati1, H Sugilar 2, and I N Marijan Departemen Mathematics of Education, UIN Sunan Gunung Djati Bandung Abstract Low critical thinking skills of students during the learning process requires professional teachers to have technological knowledge. The purpose of the paper is to find out the differences in critical thinking skills between students who have learned non example examples of wingeom software and conventional learning. Quasi Experiment Method, Non-equivalent Pretest-Posttest Control Group Design. The implementation at SMPN 17 Bandung Indonesia, involved two classes, class VIII E with 32 students as the experimental class and VIII B as the control class with 30 people. Test instruments for critical thinking skills. Data analysis using independent T test. Data processing results: There is a difference in the increase in mathematical critical thinking skills between students who get example non example learning assisted by wingeom software better than conventional learning. Learning with the help of Wingeom software can facilitate three-dimensional animation that can be rotated, pushed, students can visualize two-dimensional and abstract dimensions into more concrete, so as to support success in increasing students critical thinking abilities. Keywords: Critical Thinking, Multimedia Learning, Mathematic Education Share Link | Plain Format | Corresponding Author (Wati Susilawati)

928	Mathematics	ABS-954
Team Games Tournament for Mathematics Strategy Education Dewi fawziawati Universitas Al Ghifari Abstract The independence of mathematical learning is currently still low and has implications for the low achievement of students. The cause of the low ability of independence of mathematical learning is the lack of activity of students in the learning process. Choosing the right learning strategy can optimize mathematical understanding skills. Based on the background above, this study aims to determine the improvement of students mathematical understanding of learning using the Teams Games Tournament. The subjects of this study were students of the first semester pharmacy study program using experimental research methods. The data processed in this class of research is from the pretest and posttest scores then data processing is performed. The results of the study showed that there was an increase in students mathematical comprehension skills in learning using the Teams Games Tournament. Keywords: Teams Games Tournament (TGT), Mathematics Strategy, Mathematics Education Share Link | Plain Format | Corresponding Author (Dewi Fawziawati)

929	Mathematics	ABS-958
Problem solving skill of vocational students based on mathematical disposition Yayuk Yustiana, Tri Atmojo Kusmayadi, Laila Fitriana a) Postgraduate Program of Mathematics Education, Universitas Sebelas Maret, Jalan Ir. Sutami No. 36A, Surakarta 57126, Indonesia. *yustiana.yaya[at]gmail.com b) Faculty of Mathematics and Natural Sciences, Universitas Sebelas Maret, Jalan Ir. Sutami No. 36A, Surakarta 57126, Indonesia. *tri.atmojo.kusmayadi[at]gmail.com c)Faculty of Teacher Training and Education, Universitas Sebelas Maret, Jalan Ir. Sutami No. 36A, Surakarta 57126, Indonesia. *lailafitriana_fkip[at]staff.uns.ac.id Abstract Problem solving abilities encourage students to think critically of looking at each problem. Mathematical disposition of students manifested through their attitud and behavior in choosing problem solving strategies. The purpose of this study to analyze students problems in the ability to solve problems seen from the level of mathematical disposition. The method used descriptive qualitative method with the subject of three students used as a sample consisting of students with a high level of mathematical disposition (T), medium (S), and low (R) selected from 27 students of class XI SMK in Salatiga by using purposive random sampling. The instrument used in the form of a questionnaire and test description. Data validity used data triangulation methods. Data analysis is done by collecting data, reducing data, presenting data, and drawing conclusions. The results showed that students with high and moderate mathematical disposition levels were unable to fufill indicators of mathematical problem solving abilities, such as understanding problems and checking their answers, while students with low disposition levels were unable to fulfill all indicators of mathematical problem solving abilities. By referring to the results of this study, shows that student’s mathematical disposition is related to problem solving abilities. Keywords: Problem Solving; Mathematical Disposition Share Link | Plain Format | Corresponding Author (Yayuk Yustiana)

930	Mathematics	ABS-703
Mathematical Fitting Model and Analysis in Describing Covid-19 Viruses Outbreak in China Fadilah Ilahi UIN Sunan Gunung Djati Abstract The outbreak of novel coronavirus at the end of 2019 (covid-19) has become a global concern due to its fast transmission from human-to-human. It is first time discovered in Wuhan, Hubei Province in China. In this research, the author tries to construct epidemiological model that consist of six subpopulations such as susceptible (S), exposed (E), infected (I), isolated (L), recovered (R), and death (D) population. Those compartments will be analyzed to get basic reproduction number (R0). The data used in this research is secondary data that obtained from the recent study and various news report related to the covid-19 outbreak. Fitting method will be carried out to describe the virus outbreak and see the trend of the future condition based on the real observation data and the mathematical function that has been determined. The expected result of this research is that the mathematical fitting model and its analysis helping the epidemiologist and health practitioner to determine the right treatment to stop the outbreak so that the society could be back to virgin population. Keywords: covid-19, mathematical model, virus outbreak, fitting model, basic reproduction number Share Link | Plain Format | Corresponding Author (Fadilah Ilahi)

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