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211	Mathematics Education	ABS-278
Analysis of the Problem Solving Ability of Senior High School Students on the Basic Material of Algebraic Function Derivatives Based on Self-Confidence Destri Handayani (a*), Kusnandi (b) a) School of Mathematics Education Postgraduate Program, Indonesia University of Education Jl. Setiabudi No.229, Isola, Kec. Sukasari, Bandung 40154, Indonesia *d.handayani31295[at]gmail.com b) Faculty of Education and Natural Sciences, Department of Mathematics Education, Indonesia University of Education Jl. Setiabudi No.229, Isola, Kec. Sukasari, Bandung 40154, Indonesia *kusnandi[at]upi.edu Abstract This study aims to find out clearly and in detail as well as in-depth answers to the results of problem solving analysis of high school students on the subject matter of algebraic derivatives in terms of self-confidence. The method in this study used a qualitative descriptive method. The population in this study were all students of class XI SMA Yayasan Atikan Sunda Bandung in the academic year 2021/2022. The sample used was purposive sampling based on the criteria of high, medium, and low self-confidence as many as 4 students. Data collection techniques in this study used mathematical problem solving tests, non-confidence tests and interviews. Data analysis used is triangulation technique. The results of this study indicate that in analyzing the material derived from algebraic functions, the following things are obtained: 1) Students who have low self-confidence can meet the criteria according to the problem-solving ability indicators according to Polya^s theory, which are quite able to understand problems, can plan, implement problem-solving plan and can see the answers back. 2) Students who have moderate self-confidence can meet the criteria according to the problem-solving ability indicators according to Polya, namely being able to understand problems, be able to make plans, carry out problem-solving plans, and can review the truth of all answers, and 3) Students who have self-confidence High school students have difficulty understanding the problem, are unable to plan, but can carry out the settlement plan and can see all the answers. From these learning outcomes, it can be said that if students have high self-confidence, students may not necessarily be able to master mathematical solutions, and vice versa. Keywords: Problem Solving Ability, Algebraic Function Derivatives, Self-Confidence Share Link | Plain Format | Corresponding Author (DESTRI HANDAYANI)

212	Mathematics Education	ABS-279
Utilization of LMS (Learning Management System) to measure student^s activeness in learning mathematics during the Pandemic Covid-19 Siti Hamidah Amini, Didi Suryadi Universitas Pendidikan Indonesia, Jl. Dr. Setia Budhi No. 229, Bandung 40154, Indonesia. Abstract The use of the LMS (Learning Management System) in particular to see students^ learning activities in mathematics during the Covid-19 pandemic must be considered carefully. This is because the purpose of this study is to analyze the use of the LMS (Learning Management System) to measure students^ learning activity in mathematics during the Covid-19 pandemic. The research method used is a qualitative method with a phenomenological approach. Determination of research subjects in phenomenological research depends on the ability of the interviewee to be able to convey his life experiences. Therefore, the sample in this study was 8 students of class VIII (eight) at Ksatrya Junior High School. Data collection techniques were carried out by interview. The interview data obtained will then be analyzed using the Miles and Huberman model. Miles and Huberman^s model consists of three paths, namely data reduction, data presentation and conclusion drawing. The result of this research is that students are active in learning mathematics when using the LMS, but when learning students experience various obstacles. This is because they have limitations in using current technology. In addition, this is also due to their lack of confidence to ask their difficulties when learning mathematics takes place. In this case, the teacher plays an important role in motivating students during learning, especially in learning mathematics that uses LMS. Keywords: LMS, Student^s actives, Pandemic covid-19 Share Link | Plain Format | Corresponding Author (Siti Hamidah Amini)

213	Mathematics Education	ABS-31
Research Development Map on Mathematics Education by VosViewer Ismail Hanif Batubara-Bornok Sinaga-Edi syahputra-Sahat Saragih-Indah Purnama Sari, Dwi Novita Sari, Ely Syafitri Universitas Muhammadiyah Sumatera Utara Abstract This study aims at measuring the development of research on Mathematics Education through bibliometric analysis using VosViewer. The investigation began in May 2021 with a search on Mathematics Education in the Science Direct database using the keywords ^open access^ and ^Mathematics Education^. The search result data were saved in the form of a Research Information System. They were analyzed using VosViewer to determine the topic^s developments from year to year, the type of document widely published, the author who discussed the topic the most, the institution publishers, and the topics that appeared most frequently in thousands of journal articles. Based on the study^s findings, a map of the development of research on Mathematics Education has existed since 1998 and is constantly increasing from year to year. As many as 4174 articles were published in Procedia Social and Behavioral Sciences with the publishing name Procedia Computer Science on this topic. Meanwhile, the author^s name who published the most on this topic was Tirmizi, Rohani Ahmad, which could also be found in the Science Direct database, which was accessible until October 14, 2021. The model appeared as the most prominent topic. Network and density visualization indicated a link between topics in each area. Keywords: Mathematics Education- Bibliometric, VosViewer- Science Direct Share Link | Plain Format | Corresponding Author (Ismail Hanif Batubara)

214	Mathematics Education	ABS-35
Mathematics Learning Assessment Based on Pirie-Kieren^s Theoretical Framework in Elementary School Post-Pandemic Ramadhan Kurnia Habibie (a) Turmudi (b) Wahyudin (b) a) School of Postgraduates, Universitas Pendidikan Indonesia, Jl. Dr. Setiabudi No. 229, Bandung 40154, Indonesia b) Departement of Mathematics Education, Universitas Pendidikan Indonesia, Jl. Dr. Setiabudi No. 229, Bandung 40154, Indonesia ramadhankhabibie[at]upi.edu Abstract Various non-technical factors in the mathematics learning assessment process carried out during the pandemic made it difficult to describe students^ mathematical understanding as a whole. This will cause a lot of gaps in students^ mathematical understanding during post-pandemic learning. This study aims to describe the growth of elementary school students^ understanding of geometry post-pandemic through the use of an assessment instrument based on the Pirie-Kieren theoretical framework. This research uses a qualitative approach with a case study method. The participants in this study were fifth-grade elementary school students who were studying the topic of geometry. Data on the growth of students^ understanding of geometry was obtained through the process of analyzing the results of students^ work in completing the geometry understanding growth test based on the Pirie-Kieren theoretical framework. Findings from student work were then followed up with in-depth interviews. The results of interpretational constructivism data analysis through data reduction, data presentation, and conclusions show that there are gaps in students^ understanding of geometry topics. The gap can be observed from every inhibitor and folding back activity in each layer of student understanding. Keywords: Mathematics Assessment, Pirie-Kieren^s Theory, Post-Pandemic Share Link | Plain Format | Corresponding Author (Ramadhan Kurnia Habibie)

215	Mathematics Education	ABS-293
Mobile Learning Platform With Joyful Learning Approach S Widodo (a*), P Rahayu (a) Kampus UPI Purwakarta, Universitas Pendidikan Indonesia Abstract This study aims to determine a mobile learning platform that can be used in learning during a pandemic and an alternative to post-pandemic learning with a joyful. The research is the preliminary research of the research and development with the ADDIE model consisting of Analysis, Design, Development, Implementation and Evaluation. The results of this show the existing evolutions of mobile learning platform and the software requirement specifications for mobile learning platform with joyful learning approach that expected to be used by all teachers/lecturers as a fun and autonomous mathematics learning infrastructure for students during and after the Covid-19 pandemic Keywords: mobile learning, math education, joyful learning Share Link | Plain Format | Corresponding Author (Suprih Widodo)

216	Mathematics Education	ABS-294
Teachers Ability To Develop TPACK - Based Teaching Materials For Cross-Subject Numeracy Learning S Widodo (a*), T Ikhwanudin (b), Fauzi, A (a), Andrian R (a) a) Kampus UPI Purwakarta, Universitas Pendidikan Indonesia b) PPPPTK PLB, Bandung Abstract This study describes the teachers ability in develop TPACK-based teaching materials for cross-subject numeracy learning. The type of research used is development research. 10 elementary school teachers were given training related to the development of numeracy teaching materials across subjects. And then they develop TPACK-based teaching materials that will be applied in elementary schools. Based on the research results, elementary school teachers have been able to properly prepare high quality TPACK-based teaching materials, which will be applied in their respective schools. Keywords: Learning Material, TPACK, numeracy across curriculum Share Link | Plain Format | Corresponding Author (Suprih Widodo)

217	Mathematics Education	ABS-295
Mathematical Reasoning Abilities during the Covid-19 Pandemic: Literature Review Yani Astika Lomri1, a) and Dadan Dasari2, b) 1,2Department of Mathematics Education, Universitas Pendidikan Indonesia, Jl. Dr. Setiabudi No. 229, Bandung 40154, Indonesia a) yaniastikalomri[at]student.upi.edu b) dadan.dasari[at]upi.edu Abstract The purpose of this article is to describe the profile of students^ mathematical reasoning abilities during the COVID-19 pandemic. Mathematical reasoning is an important aspect of learning mathematics, especially in the 21st century. By using adequate reasoning abilities, students can become proficient communicators and defend arguments using their reasoning and proofs in various contexts of everyday life. The method used in this article is literature review with a focus on empirical experience published in ERIC, Google Scholar and Crossref. The results showed that there were 26 articles on students^ mathematical reasoning abilities during the Covid-19 pandemic published in 2020-2022. The articles included used quantitative, qualitative, and mixed methods. Each article came from a different country and was dominated by Indonesia with research subjects from elementary, secondary, high school, college, and teacher levels. The mathematical content used is mostly for studying geometry. The article describes a profile of the reasoning ability of students during the COVID-19 pandemic. Keywords: Mathematical Reasoning, the Covid-19 Pandemic, Literature Riview Share Link | Plain Format | Corresponding Author (Yani Astika Lomri)

218	Mathematics Education	ABS-40
Analysis of Mathematical Communication Ability in terms of Self Confidence Amalia Sari D (a*)- Khusnul Novianingsih(b) Mathematics Education, Universitas Pendidikan Indonesia, Jl. Dr. Setiabudhi 229, Bandung 40154, Jawa Barat, Indonesia *)amaliasari[at]upi.edu Abstract This study was designed to describe students^ mathematical communication skills in terms of self confidence. This research is a type of descriptive qualitative research. The research in the test to 20 students in the sample in this study is 9 students. The determination of the sampling is done by taking the 3 students that have high self confidence, 3 students who have self cnfidence, and 3 students have low self confidence. The result of data analysis showed the ability of mathematical communication for students who have high self confidence that is 2 students showed the test of mathematical communication ability enough and 1 student low. Mathematical communication skills for students who have a moderate self confidence that is 2 students showed good mathematical cominication ability test and 1 low students. The ability of mathematical communication for students who have a low selft confidence that is 2 student showed less mathematical ability test and 1 students enough. Keywords: Mathematical Communication, Self Confidence Share Link | Plain Format | Corresponding Author (Amalia Sari Dalimunthe)

219	Mathematics Education	ABS-296
Collaboration Skills of Prospective Elementary School Teacher Students in Mathematics Learning with Science Phenomenon Assissted by Learning Management System (FSLMS) Suprih Widodo (a*), Turmudi (b) (a) Kampus UPI Purwakarta, Universitas Pendidikan Indonesia b) Program Studi Pendidikan Matematika, Universitas Pendidikan Indonesia Abstract This study aims to describe the collaboration ability of prospective elementary school teacher students in learning mathematics assisted by learning management system. The method used in this research is pre-experimental with 87 students as a sample in one of the state universities in West Java. Collaboration measurement is carried out on the results of student work in completing a given project. The results of this study indicate that students^ collaboration skills with the assistance provided are categorized as good. not many students who dominate and not many are passive. These results provide recommendations that mathematics learning is assisted by utilizing LMS Keywords: Collaboration ability, Math Learning, Learning Management System Share Link | Plain Format | Corresponding Author (Suprih Widodo)

220	Mathematics Education	ABS-300
Desains E-worksheet based on ethnomathematics context of activities of Pandanwangi farmers in Cianjur To Improve numeracy literacy Rani Sugiarni (a*), Tatang Herman (b) a)Universitas Pendidikan Indonesia, Universitas Suryakancana *ranisugiarni[at]upi.edu b)Univeristas Pendidikan Indonesia Abstract In principle, the new paradigm curriculum of learning gives you the freedom to choose or modify the available teaching materials or make your own according to the context, characteristics, and needs of students, one of which is culture. Certain cultures have mathematical concepts known as ethnomathematics. One common mathematical conten in ethnomathematics is algebra. But in reality, students have difficulty mastering abstract algebraic material. Based on the results of PISA and TIMMS, Indonesian students have low numeracy literacy. So far, ethnomathematics-based learning tools that are integrated with numeracy literacy in the activities of Pandanwangi Cianjur farmers as teaching tools are not yet available. Therefore, it is necessary to develop ethnomathematical-based learning tools. This study aims to develop an ethnomathematical-based e-worksheet that integrates numeracy literacy and meets the valid criteria by using a live worksheet application so that it can be used as a learning resource for students both in the classroom and in the independent learning process. This research refers to the Plomp development model, which consists of preliminary research and a prototype stage. The research instruments are the needs analysis sheet, validation sheet, observation sheet, and response questionnaire. The results showed that the developed student e-worksheets met the valid criteria because all validators stated that the student e-worksheets were suitable for use. Keywords: e-worksheets- ethnomathematics- algebra, numeracy literacy Share Link | Plain Format | Corresponding Author (Rani Sugiarni)

221	Mathematics Education	ABS-45
Deductive Reasoning and Mathematical Resilience in Complex Analysis Azka Rabbihadi Joe, Nunung Sobarningsih, Tika Karlina Rachmawati (*), Hamdan Sugilar Mathematics Education Department, UIN Sunan Gunung Djati Bandung, Indonesia *tikakarlinarachmawati[at]uinsgd.ac.id Abstract The pre-research data of mathematics prospective teachers in one of university in Bandung shown that the deductive reasoning ability in complex analysis was still not on good level. Beside of the cognitive aspect, affective aspect could be considered too in doing learning process, such as mathematical resilience. This study aims to analyze and to identify the correlation between deductive reasoning and mathematical resilience in complex analysis. The research was conducted in one of mathematics education department of a university in Bandung. Correlation was the method that used in this study. Mathematics prospective teachers were the sample of this research. This study concluded that mathematical deductive reasoning of prospective teachers was on moderate level, mathematical resilience of prospective teachers was on positive category, and there was a significant correlation between deductive reasoning and mathematical resilience of prospective teachers on moderate level. Keywords: Deductive Reasoning, Mathematical Resilience, Complex Analysis Share Link | Plain Format | Corresponding Author (Tika Karlina Rachmawati)

222	Mathematics Education	ABS-303
Computational Thinking with a Multiliteracy Model Using Interactive PowerPoint Media: An Experiment in Elementary Schools Zaenal Abidin (a*) (c), Wahyudin (b), Tatang Herman (b), Turmudi (b), Riduan Febriandi (a), Ady Akbar (a), Laely Farokhah (a) a) Elementary Education Departmen, School of Postgraduate, Universitas Pendidikan Indonesia Jl. Dr Setiabudhi No 229, Bandung *zaenal_abidin21[at]upi.edu b) Mathemaics Education Department, Univesitas Pendidikan Indonesia Jl. Dr Setiabudhi No 229, Bandung c) Elementary School Teacher Education Dept. Teacher Training and Education Faculty Universitas Muhammadiyah Surakarta Jl. Ahmad Yani, Tromol POS 1,Pabelan, Kartasura Abstract For elementary school students, computational thinking is a required skill in the digital age. Computational thinking, like mathematical skills, is a fundamental competence in digital literacy. It is used to solve problems in learning. One option is to help kids learn in a way that emphasizes on computational thinking, for as using the multiliteracy model with interactive PowerPoint slides. The goal of this study was to evaluate and characterize the impact of multiliteracy models aided by interactive PowerPoint media on the learning of computational thinking skills in elementary school students in terms of prior knowledge. With a total sample of 28 4th grade elementary school students, this quantitative study used a one-group pretest posttest design with a total sample of 7 students in the high group, 14 in the medium group, and 7 in the high group. After conducting the research, it was discovered that implementing a multi-literacy learning approach aided by interactive PowerPoint media can considerably boost students^ computational thinking skills acquisition and improvement. This is due to the fact that kids are able to build computational thinking skills in a fun situation using PowerPoint media. Another study found that pupils in the high group performed much better on average when it came to learning computational thinking skills. Meanwhile, the average gain of computational thinking skills in the medium group was only marginally different from the low group^s average. Keywords: Computational thinking, Multiliteracy model, Powerpoint media, Elementary School, Prior Knowlegde Share Link | Plain Format | Corresponding Author (Zaenal Abidin)

223	Mathematics Education	ABS-49
Ability Estimation of Senior High School Students in Mathematics using the Classical Test Theory and Three-Parameter Item Response Theory Model Bayah J. Amiruddin, Mercedita Langamin Mindanao State University - Tawi-Tawi Abstract This study aimed to estimate and compare the academic abilities of the senior high school students of the Mindanao State Univeristy-Tawi-Tawi College of Technology and Oceanograpgy - College of Arts and Sciences in Mathematics using the Classical Test Theory (CTT) and the Item-Response Theory (IRT) models. Specifically, the Bayesian modal or maximum a posteriori (MAP) under the 3PL model of IRT was used as ability estimator. The study involved a total of 52 Grade 11 students in a descriptive-quantitative approach using Microsoft Excel, R, and SPSS software in the data calculation. The findings generally revealed that 30 (57.69%) students passed and 22 (42.31%) failed under the CTT approach. However, under the IRT approach, 34 (65.38%) passed while the remaining 18 failed. Moreover, when the CTT and IRT results were compared, it produced significant results indicating that transmuted grades of the students were higher under IRT than CTT. Thus, the null hypothesis stating that, there is no significant difference between the actual performance in CTT approach and the estimate ability in IRT approach was rejected. Furthermore, the results of the two approaches showed significant relationship further providing a better picture of the comparison. Hence, the null hypothesis for the relationship between the two sets of data was rejected. In this study, IRT appeared to provide more details/information about student performances/abilities than the CTT and thus the use of IRT in the ability estimation is recommended. In addition, Bayesian modal or MAP appeared to work well as ability estimator and thus its employment is likewise encouraged. Keywords: Ability Estimation, Item Response Theory, Classical Test Theory, Bayes Modal Estimation, Three Parameter Logistic Model. Share Link | Plain Format | Corresponding Author (Bayah Jaujali Amiruddin)

224	Mathematics Education	ABS-305
Means End Analysis (MEA): A Learning Model to Improve Mathematics Cognitive Learning Outcomes in the Post-Pandemic Covid-19 Anas Salahudin(a*), Salwa Iqlima Mufida(a), Inne Marthyane Pratiwi(a) Program Studi Pendidikan Guru Madrasah Ibtidaiyah Universitas Islam Negeri Sunan Gunung Djati Bandung. Jalan Soekarno Hatta, Cimincrang, Gedebage Bandung 46294, Indonesia *anassalahudin[at]uinsgd.ac.id Abstract This research is motivated by the low cognitive learning outcomes of students in solving math problems. Alternative learning to the low cognitive learning outcomes of students is to apply the Means End Analysis learning model. This study aims to determine the difference in the average cognitive learning outcomes of class VI students in learning mathematics using the Means End Analysis model with conventional learning using the Direct Instruction model. The population of this research is all sixth grade students of SDN 267 Bandung for the academic year 2021/2022. The samples taken were class VI A, and class VI B using a purpose sampling technique. Data collection techniques used are tests and observations. The data analysis technique used independent t-test with a significance level of 5%. The results obtained that: there is a difference in the average cognitive learning outcomes of students between those taught with the Means End Analysis learning model and conventional learning using the Direct Instruction model. So that the Means End Analysis model can be used as a learning model that can improve cognitive mathematics learning outcomes in the post-pandemic covid-19. Keywords: Means End Analysis- Learning model- Mathematics Share Link | Plain Format | Corresponding Author (Anas Salahudin)

225	Mathematics Education	ABS-50
Symbol Sense Ability of Students Viewed by Way of Thinking and Understanding in Solving Equations Siti Kurnia Nurjannah, Sufyani Prabawanto Departemen Pendidikan Matematika, Universitas Pendidikan Indonesia, Jl. Dr. Setiabudi No. 229, Bandung 40154, Indonesia Abstract Mathematical understanding is the basic ability to understand the nature of mathematical knowledge, which is having abstract objects. The way of thinking is characteristics of a mental act perform by someone and way of understanding is a cognitive product of a mental act. The mental act is obtained by observing statements and actions. Mathematics topic that related to abstract symbols is algebra, which students start to be introduced to symbols that are not only numbers but letters that are abstract. The term symbol sense appears as sensitivity to symbols that considered as an important ability for students. Solving equations is a skill needed to be acquired in learning algebra. This study aims to analyze the way of understanding and the way of thinking students who had symbol sense ability in solving quadratic and rational equation. A qualitative method was conducted and administered to thirty-five high school students. In conclusion, students are able to use symbol sense strategies for solving problems also had their equations concept and algebraic operations which way of thinking they used are flexible in interpret the symbols, able to connect with other concept and subject to the process of algebraic operations. Keywords: symbol sense, way of thinking, way of understanding, equations Share Link | Plain Format | Corresponding Author (Siti Kurnia Nurjannah)

226	Mathematics Education	ABS-307
Developing Students^ Ability To Write Scientific With Local Base Through The Application Of The Drill Method Of Mathematics M Mariamah, S Sulfahri, Ita Fitriati, I Ilyas, Nur Fitrianingsih, Suciyati, H Hardiansyah, S Salahudin, S Subhan, Fifi Faridah, R Ramli STKIP TAMAN SISWA BIMA Abstract The problems found in the students^ writings were the use of Indonesian grammar that was not standardized, the use of punctuation marks that were not correct and scientific principles in writing proposals were still lacking. The ideas written have not been systematic and are not able to develop the narrative to be written, writing activities still make students a difficult burden to complete. The purpose of this research is to develop students^ writing skills based on local wisdom through the drill method. This type of research is experimental research by taking two classes of samples. The instrument used was a writing test and the data were analyzed using the t test at a significant level of 5%. Before conducting the t test, a prerequisite test was carried out, namely the normality test of the data and the homogeneity test. The results showed that the value of t arithmetic is greater than t table so that the accepted hypothesis is an alternative hypothesis which means that the drill method can develop students^ scientific writing skills. Keywords: Ability to write,drill method, scientific writing ,local based wisdom Share Link | Plain Format | Corresponding Author (Mariamah Mariamah)

227	Mathematics Education	ABS-308
Influence of Problem Based Learning Model to Improvement of Mathematical Problem Solving Skill and Math Anxiety of Junior High School Students Muhammad Fajar Marta (a), Nurjanah (a), Ade Rohayati (a) a) Departemen Pendidikan Matematika, Universitas Pendidikan Indonesia Jalan Jl. Dr. Setiabudi No.229, Bandung, Indonesia Abstract This research was motivated by the students^ poor level of mathematical problem solving skill in school. Besides, math anxiety is also deemed to influence negatively on students^ mathematical problem solving skill. Students with math anxiety tend to avoid math and have a negative attitude toward math. The purposes of this research are : (1) To find out the improvement of mathematical problem solving skill in students who were taught with Problem Based Learning (PBL) model compared to students who were given a conventional approach (2) To find out math anxiety level of students before and after they are taught with PBL model. Population in this research is students at 8th grade junior high school 12 Bandung with 64 students from both experiment and control classes that are selected by purposive sampling method. The instruments used in this research are mathematical problem solving skill test & math anxiety questionnaire. The data are analyzed by t-test independent sample test & N-gain score test for mathematical problem solving skill data and Paired Samples t-Test for math anxiety data. The result of this study showed us: 1) Students who received mathematical learning through Problem Based Learning model showed significantly better improvement than students who received conventional mathematical learning. 2) Math Anxiety among students who received mathematical learning through Problem Based Learning model was lower than before they received the teaching in PBL Keywords: Math Anxiety, Mathematical Problem Solving Skill, Problem Based Learning. Share Link | Plain Format | Corresponding Author (Muhammad Fajar Marta)

228	Mathematics Education	ABS-54
Meta Analysis of Mathematical Critical Thinking Ability through Problem-Based Learning Model in Junior High School Rizki Naimah Rambe(a*), Prof. Dr. H. Darhim, M.Si (b) a)Indonesian education university Bandung b) Master Study Program For Mathematics Education Faculty Of Mathematics And Science Education Abstract This study aims to analyze previous published studies so as to obtain a summary of the success of Problem-Based Learning research on critical thinking skills in learning mathematics. This research uses experimental research with meta-analysis techniques. The meta-analysis steps include, (1) Determining and studying the research topic to be carried out, (2) Finding and collecting several sources with certain topics and selecting them. Literature search can be done manually or through internet sources or websites, (3) Calculating how big the impact is with certain models in the meta-analysis and testing hypotheses on the impact, (4) Identifying whether there are differences in the impact on the subject, (5) Draw conclusions and interpret the results of the meta-analysis research. The results of this study indicate that the Problem-Based Learning model can improve students^ critical thinking processes in learning mathematics. These results can be seen from the results of the pretest and posttest with an average of 0.15% included in the Week Effect category. Keywords: Meta-analysis, Critical thinking, Problem-based learning Share Link | Plain Format | Corresponding Author (Rizki Naimah Rambe)

229	Mathematics Education	ABS-56
Using The Onto-Semiotic Approach to Identifying Pre-Service Elementary Teachers^ Difficulties When Solving Fractions Problem Yeni Dwi Kurino (a*), Tatang Herman (b), Mohamad Gilar Jatisunda (c) a) Universitas Pendidikan Indonesia b) Universitas Pendidikan Indonesia c) Universitas Pendidikan Indonesia Abstract The primary goal of this research is to use an onto-semiotic approach to analyze the difficulties encountered by pre-service elementary teachers when solving fraction problems. This study employs a phenomenological design approach. Tests and interviews are used to acquire data. The research participants is pre-service elementary teachers totaling 27 individuals who studied the fractions content- 5 of the 27 students were interviewed. The findings indicated that prospective elementary school educators struggled with the formal definition of fractions and the description of symbols or notations. They have trouble solving fractional problems in other ways. There is evidence that their practical understanding is superior to their conceptual grasp of fractions Keywords: Difficulties, Fractions Problem, Pre-service elementary teachers Share Link | Plain Format | Corresponding Author (Yeni Dwi Kurino)

230	Mathematics Education	ABS-316
Analysis of Factors that Influence Students^ Mathematical Critical Thinking Skills: Intrapersonal Intelligence and Learning Motivation Aswin (a*), Dadan Dasari (b) a) Mathematics Education Study Program, Universitas Pendidikan Indonesia, St. Dr. Setiabudhi No.229, Bandung 40154, Indonesia b) Department of Mathematics Education, Universitas Pendidikan Indonesia, St. Dr. Setiabudhi No.229, Bandung 40154, Indonesia Abstract Mathematical critical thinking is a person^s ability that includes a thought process that aims to obtain a rational thought to do something or believe what will be done. Many factors influence students^ mathematical critical thinking skills, including intrapersonal intelligence and learning motivation. This study aims to determine the effect of intrapersonal intelligence and learning motivation on students^ mathematical critical thinking skills. This research is quantitative research with an ex-post facto approach. The population in this study is a class XI high school in Sidrap district. The number of samples in this study was 85 students who were selected by the purposive sampling technique. The data collection technique in this study used an instrument consisting of (1) an intrapersonal intelligence questionnaire, (2) a learning motivation questionnaire, and (3) a mathematical critical thinking ability questionnaire. Analysis of the data used is Structural Equation Modeling (SEM) using the PLS 3.0 smart computer program. The results of this study are that there is an influence between intrapersonal intelligence on students^ mathematical critical thinking skills of 0.279 (P values = 0.039) and learning motivation has an effect on students^ mathematical critical thinking skills of 0.640 (P values = 0.00). Keywords: Intrapersonal Intelligence, Learning Motivation, Students^ Mathematical Thinking Skills. Share Link | Plain Format | Corresponding Author (Aswin aswin)

231	Mathematics Education	ABS-62
Constructing Mathematical Literacy-Items with Coronavirus Disease (COVID-19) as a Context Fitri Anisa Kusumastuti(a*), Muh. Khaedir Lutfi(a), Ignatius Joko Dewanto (a), Aeni Rohmawati(a) (a) Universitas Tangerang Raya Komp. Perumahan Sudirman Indah, Jl. Ki Mas Laeng Jl. Syeh Mubarok No. 25 Tigaraksa Kab. Tangerang - Banten fitrianisakusumastuti[at]gmail.com Abstract This research aims to produce a set of mathematical literacy-items with Coronavirus Disease (COVID-19) as a context that is valid to assess students^ mathematical literacy. Steps used in this study consist of analyzing, designing, theoretical validation, revising, limited testing to students, and evaluating. Written tests were conducted to collect 46 seventh-grade students of junior high school data. Mathematical literacy items consist of three items with three indicators and competency clusters. The indicators are formulating, employing, and interpreting mathematics. The results show that (1) the mathematical literacy items which are produced have been valid and practical, (2) have fair and good item discrimination, and (3) have easy, medium and hard item difficulty, so it can be utilized to evaluate mathematical literacy ability. Keywords: Mathematics Literacy- COVID-19- Mathematics-Items Share Link | Plain Format | Corresponding Author (Fitri Anisa Kusumastuti)

232	Mathematics Education	ABS-63
A Systematic Literature Review of Discovery Learning Models on Mathematical Ability Students Khairunnisa (a*), Dadang Juandi (b) a) Department of Mathematics Education of Universitas Pendidikan Indonesia, Jl. Dr. Setiabudi No.229 Bandung 40154, Indonesia b) Department of Mathematics Education of Universitas Pendidikan Indonesia, Jl. Dr. Setiabudi No.229 Bandung 40154, Indonesia Abstract This research will examine studies on the impact of the discovery learning model on mathematical abilities in students, such as problem-solving, critical thinking, understanding, and mathematical reasoning ability, based on the year of publication, education levels, sample size, and demographics. This research uses a survey-based quantitative descriptive approach with the Systematic Literature Review (SLR) method. Data is collected from experimental research connected to the application of discovery learning models to the mathematical abilities of students at the elementary, junior high, and high school levels in papers indexed from 2012 to 2021. From the search results, 48 journals were obtained. Through the SLR method, there is an increase every year in the number of published studies of each mathematical ability. It is also known that researchers conduct more research at the junior high school education level, with a sample size of more than 30. Meanwhile, when viewed from the demographic aspect, this study is more located on the island of Java. Keywords: Discovery Learning- Mathematical Ability- SLR Share Link | Plain Format | Corresponding Author (Khairunnisa )

233	Mathematics Education	ABS-319
Geometrical Thinking: Its role for Analysing Geometry Task related to HOTS from PISA Muh. Khaedir Lutfi (a*), Fitri Anisa Kusumastuti (a), Sitti Fithriani Saleh (b), Aliep (a) a) Universitas Tangerang Raya Kompleks, Jl. Perumahan Sudirman Indah No.blok E, Kec. Tigaraksa, Kabupaten Tangerang, Banten 15720, Indonesia *muh.khaedir.lutfi[at]gmail.com b) Universitas Muhammadiyah Makassar Jl. Sultan Alauddin No.259, Gn. Sari, Kec. Rappocini, Kota Makassar, Sulawesi Selatan 90221 Abstract This study intends to analyze geometry tasks related to Higher Order Thinking Skills (HOTS) through geometrical thinking level by Van Hiele which consists of Visualization, Analysis, Abstraction, Deduction, and Rigor. This study only focuses on Visualization, Analysis, and Abstraction levels. The stages in this study are divided into three steps. Chronologically, the first stage begins with the process of compiling PISA tasks related to geometry and HOTS, especially for examining the students^ spatial abilities. From all the tasks obtained, three tasks match the criteria that were most relevant to Van Hiele^s geometrical thinking level. The second stage was continued by testing the instrument test to 23 students from one of schools in Tangerang Regency as respondents. The last stage, analyze the students^ answers based on the steps of their work and compared with theory of geometrical thinking from Van Hiele. The results of this study indicate that there are differences between the steps of the students^ answers and theoretical answer steps that expected in this study. The conclusion that can be drawn is that the students^ learning experiences in understanding geometrical concepts are not theoretically compatible with the principles of spatial ability, especially in completing geometry tasks related to HOTS. Keywords: Geometrical Thinking- Spatial Ability- Geometry Task- HOTS- PISA Share Link | Plain Format | Corresponding Author (Muh. Khaedir Lutfi)

234	Mathematics Education	ABS-320
Online Class Vs Offline Class (Study Case on STKIP Pamane Talino Students in Transition of Covid-19 Pandemic Era) Muhammad Firman Annur (a), Maris Stella Arisinta (b) (a and b) STKIP Pamane Talino, Jalan Afandi Rani, Jalur 2, Ngabang, Kabupaten Landak, Kalimantan Barat Abstract This research aims to analyze and compare students^ responses about two conditions of learning class on Covid-19 Pandemic era, online and offline class. There are 15 students of the Mathematics Education Department of STKIP Pamane Talino act as respondences in this research. In this research, the data from respondence get analyzed and described until we are able to reach a conclusion. Based on the questionnaire result, we know that the students prefer to study offline than online class Keywords: Online Class, Offline Class, Students, Covid-19 Pandemic Share Link | Plain Format | Corresponding Author (Muhammad Firman Annur)

235	Mathematics Education	ABS-67
Research Trends Mathematics Learning with STEM (Science, Technology, Engineering, Mathematics) Approach in Indonesia : SLR Irfa Ul Umam (a) Dadang Juandi (b) Elah Nurlaelah (c) Universitas Pendidikan Indonesia, Jalan Dr. Setiabudhi No 229, Bandung, Indonesia. faulmam[at]upi.edu Abstract This study aims to systematically analyze research trends in mathematics learning with a STEM approach in Indonesia in the last 5 years based on articles published in national journals. 35 articles were collected for analysis using the Paper Classification Form (PCF) instrument. The results of the analysis show the number of Research Focuses starting from Learning Strategies (42.85%), followed by Evaluation and Assessment (17.14%), Learning Tools (11.42%), and Teaching Materials and Learning Media with the same number of trends (8.57% ). The research method obtained qualitative methods (37.14%), quantitative methods (25.71%), mixed methods (11.43%), and R&D (25.71%). The most common pattern of integration found is STEM-PjBL (22.86%), and contextual learning (STEM-Contextual learning) (11.43%) regulates the trend of STEM integration patterns in Indonesia in the last 5 years. Learning Outcomes (22.85%) and Creative Thinking Skills (28.57%) are the dominant dependent variables related to STEM learning and followed by other variables, namely Learning Activities (11.43%) and Learning Motivation (5.71%) which also received sufficient attention. from researchers. Thus, there needs to be a variety of other potential STEM studies. Keywords: STEM, Mathematics learning, STEM approach, STEM in Indonesia, Research trends, SLR etc. Share Link | Plain Format | Corresponding Author (Irfa Ul Umam)

236	Mathematics Education	ABS-69
ORGANOLOGY ANALYSIS OF DOL MUSICAL INSTRUMENTS AS A MATHEMATICS LEARNING MEDIA BASED ON THE LOCAL WISDOM OF BENGKULU IN ELEMENTARY SCHOOL Bambang Parmadi, Dalifa, Neza Agusdianita, Aliffarazzi Syaqki Parmadie ¹ Basic Education Master^s, FKIP Bengkulu University ² Educational Science Doktoral, FKIP Bengkulu University ³ Primary Teacher Education, FKIP Bengkulu University ⁴ Communication Studies ISIP UMY Yogyakarta Abstract The research was held back by the unique background of the Dol instrument as ritual music at the ceremony of the Tabut and the identity if the Bengkulu tradition music. The purpose of the study is to describe the arganology of the Dol instrument and its method of production, describe the design of the implementation of musical instruments on mathematics learning materials in elementary schools in both physical and sociocultural detai. The theory used is ethnomusicology and mathematics learning media. The needed method involves a qualitative approach to the organology of the Dol instrument and learning media. The data sources used are there sources and a validator with observation techniques interview technique, documentation technique. The validty of data uses there types of triangulation (technique, source, and time). The result of this research was either a text box or a materials module. The result of Dol instrument^s organological analysis as a media learning mathematics based on local cultural wisdom at the elementary school are expected to assist every teacher in educating students in understanding preservation of local culture and implanting the local area^s cultural arts character. Besides, the results of this study will contribute to the literacy and media sources of common education and general education Keywords: Organology, Music Dol, Mathematics, Learning Media, Local Wisdom Share Link | Plain Format | Corresponding Author (BAMBANG PARMADI)

237	Mathematics Education	ABS-70
View of Pre Service Teacher Regarding Math and Science Literacy Metta Liana*, Mariyanti Elvi, Nur Ama Riani Siregar, Susanti Faculty of Teacher Training and Education, Universitas Maritim Raja Ali Haji, Jalan Politeknik Senggarang, Indonesia Abstract As future teacher candidates, students must have good mathematical and scientific literacy. Therefore, this study aims to describe prospective teacher students^ mathematical literacy and scientific literacy. A total of 8 student teacher candidates from the mathematics education, biology and chemistry education study programs were selected to be interviewed. The results showed that students equipped with an understanding of mathematical literacy and scientific literacy in literacy-related programs and literacy lectures responded positively. Keywords: Literacy, Critical Thinking Share Link | Plain Format | Corresponding Author (Metta Liana)

238	Mathematics Education	ABS-71
Phinisi Ship Explorations as Mathematics Learning Resources: Ethnomathematical Study Ady Akbar (a*), Tatang Herman (b), Zaenal Abidin (c), Yeni Dwi Kurino (d) (a)-(b)-(c)-(d) Universitas Pendidikan Indonesia, Bandung, Indonesia *adyakbar09[at]gmail.com Abstract Phinisi ship is a traditional wooden boat originating from Bulukumba Regency, South Sulawesi Province. The Bulukumba people^s knowledge in making phinisi has been recognized by UNESCO since 2017 by making phinisi an intangible world cultural heritage. This study aims to explore the concept of geometric ethnomathematics contained in the phinisi ship. The method used in this research is an exploratory-descriptive method through an ethnographic approach. Research data were collected through literature review, observation of the shape and process of making phinisi, and interviews with expert phinisi shipbuilders. The data analysis technique used is an interactive model: data reduction, data display, and verification. The results show that there are ethnomathematical concepts of flat and spatial geometry in components of the phinisi ship. This ethnomathematical concept has relevance to the formal mathematical concepts learned in school. The ethnomathematical concept of geometry contained in phinisi is triangle contained in the shape of the sail, rectangle found on the hull board, spatial geometry in the form of a beam containing the ship^s keel component, and space geometry in the form of a cone found on the ship^s peg component. Keywords: Ethnomathematics- Geometry- Phinisi ship Share Link | Plain Format | Corresponding Author (Ady Akbar)

239	Mathematics Education	ABS-329
ANALYSIS OF ABILITY OF PROSPECTIVE MATHEMATICS TEACHER STUDENTS IN MICRO LEARNING REVIEWED FROM THE PREPARATION OF LEARNING DEVICES AND IMPLEMENTATION PRACTICES Aprilia Dwi Handayani (a*)- Bambang Agus Sulistyono (a)- Samijo (a)- Dian Devita Yohanie (a)- Irwan Setyowidodo (b) a) Departemen of Mathematics Education Universitas Nusantara PGRI Kediri * apriliadwi[at]unpkediri.ac.id b) Departemen of Mechanical Engineering Universitas Nusantara PGRI Kediri Abstract Competency standards that must be possessed by a teacher consist of four aspects, namely pedagogical, personality, social and professional. This means that the competencies that must be possessed by prospective mathematics teachers are not only limited to cognitive abilities but also the ability of prospective mathematics teacher students to train themselves as professional educators. To become a professional mathematics teacher, the curriculum contains compulsory courses that must be taken by prospective teacher students, namely Introduction to the School Field (PLP I), which includes small class teaching practices. This study aims to analyze the ability of prospective teacher students in carrying out micro teaching in terms of the ability to prepare learning tools and small class teaching practices. This research is a qualitative research with a qualitative descriptive approach with the research subjects of mathematics education students who are taking PLP I. The instrument used in this research is an observation sheet of micro learning practice which consists of preparation and practice, interviews and documentation. Documentation is carried out with photos and videos recorded while students are practicing teaching. The data obtained were then analyzed by descriptive analysis method. The results of this study indicate that the percentage of student competency achievement in terms of learning preparation is higher than the percentage of student competency achievement in the practice of implementing micro teaching. Keywords: prospective mathematics teachers- micro teaching- professional competence- PLP I Share Link | Plain Format | Corresponding Author (Aprilia Dwi Handayani)

240	Mathematics Education	ABS-74
Analysis of Students Combinatorial Thinking Model in Solving Combinatorics Problems Rita Desfitri Mathematics Education Department Universitas Bung Hatta Jalan Sumatera Ulakkarang, Padang 25133, Indonesia rdesfitri[at]bunghatta.ac.id Abstract The purpose of this study was to analyze students^ combinatorial thinking model in solving combinatorial problems. This study was organized into two related areas. The first focused on whether students applied combinatorial thinking in Lockwoods model, and the second emphasized on the obstacle students faced in solving given combinatorics problems. This research method used was a qualitative descriptive method. Participants of this study were students majoring mathematics education at Bung Hatta University who took combinatorics courses. Five combinatorics problems were given to students and then analyzed. The result showed that based on Lockwoods model, the aspect of combinatorial thinking that was more widely applied in solving combinatorics problems was counting process. However, most students who were able to solve problems quit well, tended to solve problems with steps from formulating, followed by the process of counting to reach a set outcomes. Whereas student who did the counting process stage without formulating problems into mathematics expressions, generally checked set of outcomes by trial and errors. It can also be noted that in general, for any problem given, the percentage of students faced difficulties when formulating problems into mathematical expressions or on counting process was more that 50%, and the number of students who reached the correct set of outcomes was relatively low Keywords: combinatorial thinking model, mathematics formula, counting process, set of outcomes Share Link | Plain Format | Corresponding Author (Rita Desfitri)

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