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181	ABS-294	Mathematics Education
THE ABILITY OF UNDERSTANDING CONCEPTS, REASONING, AND SELF REGULATED LEARNING OF MATHEMATICS STUDENTS X IN TRIGONOMETRY MATERIALS Hibatul Azizi (a), Tatang Herman (b) Departemen Pendidikan Matematika, Universitas Pendidikan Indonesia, Jl. Dr. SetiaBudhi No. 229, Bandung 40154, Indonesia Abstract This research is motivated by the low students understanding ability and mathematical reasoning on the material of trigonometry. So this study aims to determine the ability to understand the concepts, reasoning, and self regulated learning mathematics of class X students on trigonometric material. This research uses qualitative approach. Subjects were randomly selected from class X of 5 students. Instrument used is the ability of concept understanding test, mathematical reasoning, and non-test in the form of self study questionnaire as many as 16 statements. The results showed that students have the ability to understand concepts and mathematical reasoning on trigonometric material is quite low and has a good self regulated learning. It can be concluded that: (1) the ability of understanding mathematical concepts of class X students on trigonometric material is still quite low. (2) The students mathematical reasoning ability in class X on trigonometric material is low. (3) There is a relationship between conceptual understanding ability and mathematical reasoning. And the self regulated learning of student on mathematics learning and mathematics ability test on trigonometric material is good. Keywords: mathematical concept understanding ability, mathematical reasoning ability, self regulated learning, trigonometry PermaLink | Plain Format | Corresponding Author (Hibatul Azizi)

182	ABS-45	Mathematics Education
Assessing of students performance on basic statistics and geometry of math test in Islamic school: a Rasch perspective (a) K Kasmanah, (a) I B Rangka*, (a) S Solihatun, (a) S Folastri, (a) W E Prasetyaningtyas, (b) I Ifdil, (b) Z Ardi, (b) Y Helsa, (c) K Suranata, (d) P Parwito, (e) L Erwinda, (e) R P Fadli, (e) N Zola, and (f) R Rahim (a) Universitas Indraprasta PGRI, Jakarta, Indonesia (b) Universitas Negeri Padang, West Sumatera, Indonesia (c) Universitas Pendidikan Ganesha, Singaraja-Bali, Indonesia (d) Universitas Ratu Samban, Bengkulu, Indonesia (e) Indonesian Institute for Counseling, Education and Therapy, Padang, Indonesia (f) Sekolah Tinggi Ilmu Manajemen Sukma, Medan, Indonesia Abstract This research tried to assess the students ability on math. This research involved 161 students at Islamic Junior High School. We evaluated the students ability on math based on basic statistics and geometry. The materials created became 40 items mathematics final exam and has been implemented on by students in May, 2018. The data were analysed using Rasch Measurement Tool (RMT). The results indicated the students are capable to reached the final exam (+1.38 logit). Further, decide probability (basic statistics) is the most complex material is performed by all students, instead estimate the surface area and the volume of the cube, beams, prism, pyramid and represent material that is most easily achieved by the entire students. The difference to the ability of male and female students in mathematics also appeared on our analysis. Another impressive phenomenon is even the quality of the examination questions is excellent, but the actual competence of the students was still questionable. We found cheating behaviour, careless, or lucky guess on student during exam. This suggests the instructor to establish the quality of learning on math in the classroom. Keywords: students performance; basic statistics; tangent fellowship; surface area and volume based; rasch analysis PermaLink | Plain Format | Corresponding Author (Itsar Bolo Rangka)

183	ABS-304	Mathematics Education
Promoting Students Self Determination Theory Skill In Merills First Principle Of Instruction (MFPI) H Wilujeng1,2*, Y S Kusumah 1, and D Darhim 1 1Math Education Department, University of Pendidikan Indonesia. Jl. Dr. Setiabudi No. 229, Bandung 40154, Indonesia 2Math Education Department, University of Muhammadiyah Tangerang. Jl. Perintis Kemerdekaan I/33, Tangerang, Indonesia Abstract Abstract. The self determination theory is the ability that allows an individual to choose and have several choices to determine an action. The problems experienced by the students related to SDT are the decreasing motivation of students to develop themselves, students are unable to be responsible and not sensitive to the feelings of others. The purpose of this study was to examine the differences in SDT achievement of MPK student self determination theory (high, medium and low). This research method was quasi experiment with Post-test Only Control Design. Subjects in the study were 124 students. The learning process was carried out through Merrills First Principles of Instruction and ordinary learning. The results shows that the average achievement of high, medium and low MPK on the self determination skill theory of students who received MFPI learning are better than those who received regular learning. In SDT indicator, autonomy and students relatedness who have high MPK are superior in comparison to medium and low MPK. The low MPK category is better on competence indicators compared to high MPK and medium MPK. MFPI learning should be an alternative learning for teachers in mathematics because in addition to improving student cognitive abilities. Keywords: self determination theory , MFPI PermaLink | Plain Format | Corresponding Author (Hestu Wilujeng)

184	ABS-49	Mathematics Education
Exploring the Individual Behavior: Why the Pre-Service Mathematics Teachers to Do Truth-Seeking in Solving the Problems? Dian Kurniati (a*), Purwanto (b), Abdur Rahman Asari (b), Dwiyana (b) (a) Department of Mathematics Education, University of Jember Jalan Kalimantan 37, Jember 68121, Indonesia (b) Postgraduate of Mathematics Education, State University of Malang Jalan Cakrawala No. 5, Sumbersari Malang 65145, Indonesia * dian.kurniati[at]unej.ac.id Abstract The individual behavior of someone who has a critical disposition in responding the problems affects them to do truth-seeking. However, no research has examined the behavior of pre-service mathematics teachers who are effects them to do truth-seeking. So the research aims to explore the individual behavior of pre-service mathematics teachers who influence them to do truth-seeking in solving mathematical problems. Research participants were three pre-service mathematics teachers who did the truth-seeking and were able to communicate fluently when doing think-aloud. This research was a qualitative descriptive research with research stages that were (1) giving two mathematical problems and ask to do think-aloud, (2) recording participants behavior when solving problem, (3) analyzing the result of answer, think-aloud, and recording, (4) doing triangulation by interview, and (5) summarizing the results of triangulation and analysis. Individual behavior that affects pre-service mathematics teachers to do truth-seeking that are (1) experience about problems and characteristic of teachers who are giving problems, (2) belief in answer problems, (3) perception to problems, and (4) understanding of the problems. So there are three individual behaviors of pre-service mathematics teachers who affect them to do truth-seeking are individual attitudes, subjective norms, and behavioral control. Keywords: Individual behavior; Truth-Seeking; Mathematical problem PermaLink | Plain Format | Corresponding Author (Dian Kurniati)

185	ABS-50	Mathematics Education
The effect of counting method and learning style on students learning outcome in mathematic lesson Rasmitadila(a*), Shinta Dewi(b) a) Elementary School Teacher Education, Djuanda University, Jalan Raya Puncak No.1, Bogor, Jawa Barat Indonesia. *Rasmitadila[at]unida.ac.id b) Elementary School Teacher Education, Uhamka University,l. Tanah Merdeka, Kp. Rambutan, Ciracas, Jakarta Timur, Indonesia Abstract This aims of this study were to determine: (1) the differences in learning outcome of mathematic between Jarimatika Method and Abacus method, (2) the differences in learning outcome of mathematic between students with learning style of visual and audio, (3) the interaction between counting method and learning style to the learning outcome. This type research was quasi-experimental with research subject as many as 60 students were determined by random sampling assignment. The data collection technique used essay test. The obtained data were analyzed by two-way Anova. The results of this study revealed that: there were significant differences in learning outcome of mathematic between Jarimatika Method and Abacus Method (sig p = 0.000 < &#945; = 0.05), (2) there were significant differences in learning outcome of mathematic between students with visual and audio (sig p = 0.000 < &#945; = 0.05), and (3) there was interaction between counting method and learning style to learning outcome of mathematic (sig p = 0.000 < &#945; = 0.05). Keywords: counting method, jarimatika method, abacus method, learning outcome, mathematic lesson PermaLink | Plain Format | Corresponding Author (Rasmitadila Rasmitadila)

186	ABS-310	Mathematics Education
Students learning obstacle in modeling the topic of quadratic equations Bagus Ardi Saputro, Didi Suryadi, Rizky Rosjanuardi, Bana G Kartasasmita Universitas Pendidikan Indonesia Abstract The inability of students to understand problems and translate sentences from word problem to mathematical problem leads researchers to find out the cause of the problem. Ten-word problem were given to sixty students to complete. Class discussion is done afterwards to find out the problem of students in solving the problem. The results of the analysis show that the problem with the type of context camouflage is the main cause of students not understanding the problem so that students cannot model correctly. We recommend to use the problem with real context on every word problem. Keywords: learning obstacle, word problem, quadratic equation, modeling PermaLink | Plain Format | Corresponding Author (Bagus Ardi Saputro)

187	ABS-55	Mathematics Education
The Analyzing of Students Learning Obstacles in Understanding Proportion Agung Putra Wijaya(1*), Tina Yunarti(1), M. Coesamin(1) (1)Department of Mathematics Education, Faculty of Teacher Training and Education, University of Lampung, Jalan Prof. Dr. Soemantri Brodjonegoro No. 1, Gedung Meneng, Bandar Lampung, Lampung, Indonesia. *agung.wijaya[at]fkip.unila.ac.id. Abstract In order to achieve learning objectives optimally, learning is designed with attention to students learning obstacles. The purpose of this study was to analyze the obstacles of junior high school students in undertsanding proportion. The subject of this study was 87 students of grade 7 of junior high school in Bandar Lampung, Lampung, Indonesia. This study used a qualitative method. The data of this study were obtained through test and interview. Based on the results of the study, 76% of students have obstacles in undertsanding proportion. The obstacles include ontogenic obstacle, epistemological obstacle and didactical obstacle. Keywords: proportion, ontogenic obstacle, epistemological obstacle, didactical obstacle PermaLink | Plain Format | Corresponding Author (Agung Putra Wijaya)

188	ABS-311	Mathematics Education
Cognitive style and gender differences in conceptual understanding mathematics students W Kusumaningsih (a,b*), HA Saputra (b), AN Aini (b) a) Departemen Pendidikan Matematika, Universitas Pendidikan Indonesia, Jl. Dr. Setiabudi No. 229, Bandung 40154, Indonesia *widya.kusuma81.wk[at]gmail.com b)Pendidikan Matematika, Universitas PGRI Semarang, Jl. Sidodadi Timur No. 24 Semarang 50125, Indonesia Abstract This study aimed to analyze the understanding of mathematics concepts of cognitive, reflective style students based on gender in the matrix material. This research is descriptive research with a qualitative approach. The data collected from high school students of class XI in a cognitive, reflective style of male and female. The technique of data collecting used in this research are tests, interviews and also equipped with documentation. The data analysis techniques in this research are data reduction, data display and conclusion/verification. The data validity using technique triangulation. The results showed that cognitive, reflective style between male and female students have a similarity understanding of mathematics concepts. In indicators that give examples or examples of the counter of the learned concepts and have differences in understanding of mathematics concepts; redefine the concepts in mathematics; connect the various concepts in mathematics as well as outside mathematics; identify the characteristic of procedure or theory and present the idea in various forms of mathematical representation. Based on the analysis of the data can be concluded that the understanding of mathematics concepts of cognitive, reflective style on the male is better than on the female. Keywords: cognitive style, concept understanding, gender diferences PermaLink | Plain Format | Corresponding Author (Widya Kusumaningsih)

189	ABS-56	Mathematics Education
STUDY ON GEOMETRY TRANSFORMATION CONCEPTS IN BATIK BESUREK BENGKULU A. Naashir M. Tuah Lubis, Dwi Yanti, Saleh Haji Postgraduate Study Program of Mathematics Education, University of Bengkulu Abstract The purpose of this study is to identify the geometric transformation concepts contained in Batik Besurek Bengkulu. This research is a qualitative research using ethnomatematic approach method. Results from the research show that in batik besurek Bengkulu have the concept of transformation geometry that is 1) reflection, 2) translation, 3) rotation, and 4) dilatation. Keywords: Ethnomatematika, Batik Besurek Bengkulu, transformation geometry PermaLink | Plain Format | Corresponding Author (A. Naashir M.Tuah Lubis)

190	ABS-57	Mathematics Education
DEVELOPMENT OF REALISTIC MATHEMATICAL PROBLEMS ORIENTED BENGKULU ETHNOMATEMATICS FOR OPEN ENDED PROBLEM SOLVING SKILLS Dwi Yanti, Wahyu Widada, Zamzaili Postgraduate Study Program of Mathematics Education, University of Bengkulu Abstract This research aims to develop math problems of open ended problem solving oriented Bengkulu ethnomatematics , which valid, practical, and effective. The research method used is design research with the type of research development or development studies using Plomp development model. The result of this research is 5 (five) math problems of open ended problem solving oriented Bengkulu ethnomatematics that is valid, practical, and effective. Keywords: problem solving, open ended, Bengkulu ethnomatematics PermaLink | Plain Format | Corresponding Author (Dwi Yanti)

191	ABS-58	Mathematics Education
Development of Instructional Media Game Education on Integral and Differential Calculus Surya Amami Pramuditya1,2,a), Herri Sulaiman2 1Departement of Mathematics Education, Universitas Pendidikan Indonesia, Jl. Dr. Setiabudi No. 229, Bandung 40154, Indonesia 2Departement of Mathematics Education, Universitas Swadaya Gunung Djati, Jl. Perjuangan No.1 Cirebon 45134, Indonesia a)E-mail: amamisurya[at]upi.edu Abstract Differential equation is a compulsory subject that must be contracted by students bachelor of mathematics education program. However, differential equation is still considered difficult by most students. The difficulty is due to the varied solution and the interrelationship with Integral and Differential Calculus materials. Educational game are one of the creative industry products that can process knowledge into games. It can be played and useful for many people. This research aims to make educational game of differential intergral calculus which can be used as a learning supplement for students. The other is to know response using game. The design of educational game is to create a scenario include materials, questions, solutions and tests on Integral and Differential Calculus. The research model used in this research is using ADDIE (Analysis, Design, Development, Implementation, Evaluation), restricted at ADD. The initial requirement analysis stage involves observing the students learning difficulties when studying the material of Differential and Integral Calculus. The design stage is the preparation of concepts and questions related to the material of Differential and Integral Calculus. The development stage is to create and develop game using software rpg game maker MV. It is based on the plot / scenario that has been compiled in the previous stages. Then game is validated by expert as well as the practicality test games as a user response. Keywords: instructional media, educational game, calculus, integral, differential PermaLink | Plain Format | Corresponding Author (Surya Amami Pramuditya)

192	ABS-315	Mathematics Education
Learning Geometry with Creative Problem Solving assisted Geogebra to Enhance Mathematical Reasoning Ability D Kustiawati (1*), Y S Kusumah (1) and T Herman (1) 1) Department of Mathematics Education Universitas Pendidikan Indonesia, Bandung 40154, Indonesia *) meza_rakaputrabed[at]yahoo.com Abstract Keywords: Creative Problem Solving; GeoGebra; Mathematical Reasoning PermaLink | Plain Format | Corresponding Author (Dedek kustiawati)

193	ABS-316	Mathematics Education
DEVELOPMENT OF MEDIA MODEL BASED ON HANDS-ON ACTIVITY TO IMPROVE CONCEPTUAL UNDERSTANDING ABILITIES OF JUNIOR HIGH SCHOOL STUDENTS IN BANDUNG DISTRICT Nurjanah, Jarnawi Afgani dahlan, Yudi Wibisono Universitas Pendidikan Indonesia Abstract This study aims to (1) develop a media model based on hands-on activity and instrument to improve conceptual understanding. (2) conducting an instrument test to improve conceptual understanding abilities. The research method is used of this study is developmental research which is conducted by thought experiment and instruction experiment. The population of this study is the seventh grade students of SMP Bandung. The results of trials of 210 junior high school students from 6 schools that have obtained flat building materials are obtained as follows: (1) all items about multiple choice conceptual understanding and validity test developed valid, (2) multiple choice questions conceptual understanding and description test developed reliable, , (5) 90 Mathematics teachers opinion on hands-on activity based media model developed to construct a conceptual understanding of students. Keywords: hands-on activity, conceptual understanding PermaLink | Plain Format | Corresponding Author (Nurjanah Nurjanah)

194	ABS-63	Mathematics Education
FI and FD Review: Creative Thinking Process in Mathematical Problem Solving Ika Setyana, Tri Atmojo Kusmayadi, Ikrar Pramudya Mathematics Education Magister, Faculty of Teacher Training and Education of Sebelas Maret University. Jl. Ir. Sutami 36A, Kentingan, Surakarta 57126, Indonesia. Abstract Abstract. The purpose of this research is to determine the ability of the creative thinking of the students of mathematics education in problem solving based on Field Dependent and Field Independent cognitive style. The research method used a descriptive qualitative approach. The subject of the study is selected by purposive sampling. The creative thinking process is the ability to problem solving or create new ideas, plan and apply those ideas to produce a new product. The theory that used in creative thinking process has four stages: 1) preparation, formulating a problem and making an initial effort to solve it, 2) incubation, a period in which no effort is made directly for solve problems and attention diverted briefly on other things, 3) illumination, gain insight from the problem, 4) verify, test the acquired understanding and make the solution. The Group Embedded Figures Test is applied for selecting of Field Independent and Field Dependent subjects. The results showed the creative thinking process subject Field Independent tends to solve the problem linear program with smooth and flexible so classified as very creative. While the subject of Field Dependent tend not to solve the problem linear program with flexible and smooth so classified as less creative or not creative. Keywords: Cognitive style, FI and FD PermaLink | Plain Format | Corresponding Author (Ika setyana)

195	ABS-322	Mathematics Education
Enhancing Mathematical Connection Ability of Mathematics Education Student Through Inquiry Based Learning Aprilia Dwi Handayani (a,b*) Tatang Herman (b) Siti Fatimah (b) Irwan Setyowidodo (a) a) Universitas Nusantara PGRI Kediri Jl. KH. Ahmad Dahaln no. 76 Kediri, Jatim, Indonesia *apriliadwi[at]unpkediri.ac.id b) Mathematics Education Department, Universitas Pendidikan Indonesia, Bandung, Indonesia Abstract As a pre service mathematics teacher, the student of mathematics education are required to have high order thinking skills. One part of high order thinking skills is the ability of a mathematical connection. The purpose of this study is to analyze the improvement of students mathematical connection ability as a result of the implementation of inquiry learning. This research is a quasi experimental research involving two classes. The first class as the experimental group which get Inquiry learning and the second group is the control group which get the conventional learning. The sample of this research is students who take the course of Numerical Method. The data have been obtained and then analyzed by using t test. The results of this study indicate that the ability of mathematical connections of students in the class that using inquiry learning is better than the students in the class that using conventional learning Keywords: Mathematical Connection, Inquiry Based Learning PermaLink | Plain Format | Corresponding Author (Aprilia Dwi Handayani)

196	ABS-72	Mathematics Education
DEVELOPING MATHEMATIC QUESTIONS OF PISA TIPE BY USING PURI TRI AGUNG BANGKA CONTEXT M Noviarsyah Dasaprawira, Zulkardi, Ely Susanti Universitas Sriwijaya Abstract This study aims to develop a math problem type PISA to familiarize students using problems with PISA standard and produces a valid, practical, PISA context of Puri Tri Agung Bangka type and see the basic math skills (KDM) seen from the context of Puri Tri Agung. The research method used is design research with the type of research development or development studies. The result of the research is a valid PISA math problem at the expert review stage and one to one, while the practicality is done by small group stages. Ability that is found in the form of communication, representation, mathematical, reasoning and argument, and formulate strategy to solve the problem. Keywords: PISA, mathematical literacy, Puri Tri Agung context, KDM PermaLink | Plain Format | Corresponding Author (M Noviarsyah Dasaprawira)

197	ABS-329	Mathematics Education
Prospective teachers mathematical resilience after participating in Problem-based Learning Lilik Ariyanto, Tatang Herman, Utari Sumarmo and Didi Suryadi Departemen Pendidikan Matematika, Universitas Pendidikan Indonesia Pendidikan Matematika, Universitas PGRI Semarang Abstract Keywords: mathematical resilience, Problem-based Learning, Prospective math teachers PermaLink | Plain Format | Corresponding Author (Lilik Ariyanto)

198	ABS-77	Mathematics Education
ANALYZING THE MATHEMATICS TEACHER CANDIDATE PEDAGOGIC CONTENT KNOWLEDGE (PCK) OF TEACHER PRACTICE IN SMP AND SMA CIREBON Neneng Aminah, Ika Wahyuni Universitas Swadaya Gunung Jati Abstract This descriptive qualitative research was Pedagogic Content Knowledge (PCK) that analyzes the mathematics teacher candidate of teacher practice in SMP and SMA Cirebon. The participants were chosen by purposive sampling technique. They are nine students at fourth grade of mathematics education who were divided by their multiple intelligent level of high, medium, and low. The validated questionnaire and measurement instrument were designed to assess PCK of mathematics teacher candidate (Aminah & Wahyuni, 2018). The results of PCK showed that they had good capability in making RPP, but not in practicing their teaching planning using teaching media, delivering teaching materials, managing the class and evaluating the students. Only students who had high academic were very good, and the rest had moderate and low academic but they were still in good category Keywords: Pedagogic Content Knowledge (PCK), multiple intelegent PermaLink | Plain Format | Corresponding Author (Neneng Aminah)

199	ABS-334	Mathematics Education
ANALYSIS OF STUDENTS CONCEPTUAL AND PROCEDURAL UNDERSTANDING OF LINEAR PROGRAMMING Khairunnisa (a*), Darhim (b) a) Department of Mathematics Education Syarif Hidayatullah State Islamic University of Jakarta, Indonesia *khairunnisa[at]uinjkt.ac.id b) Department of Mathematics Education, Universitas Pendidikan Indonesia Abstract Conceptual understanding is an understanding of theories, facts, rules, descriptions, and terminology of mathematics as well as all relevant information while procedural understanding is the procedure or set of rules (mathematical formula) to calculate or solve problems. Linear programming is a mathematical content very closely with procedural. The purpose of this study was to analyze the conceptual understanding and procedural understanding mathematics education students in the program linear material which familiar with the procedural. This research was conducted at a university by descriptive quantitative research methods using the test as an instrument for analyzing the two students ability in the form of a percentage. The results showed that 1) only 16% of students can understand correctly the concept of social arithmetic on linear programming problem is given. 2) Only 2% were able to formulate a mathematical model for the relationship between variables correctly and be able to relate to the concept of a linear program as the constraints. 3) Procedural ability on the simplex method is still less than 50% Keywords: conceptual understanding; procedural understanding; linear programming PermaLink | Plain Format | Corresponding Author (Khairunnisa -)

200	ABS-336	Mathematics Education
Error Analysis of College Students in Calculus Learning Khairani; Mukhni; Faizah Qurrata Aini Universitas Negeri Padang Abstract Calculus is one of many courses in college that must be mastered by students. But, students faced difficulty in calculus learning. There were many students who failed in calculus course. They could not answer calculus problem correctly and made mistakes. Purpose of this study was to describe students error in calculus learning based on Newman Error Analysis. Type of research was descriptive qualitative. Sampling was done by purposive sampling. Sample was 29 students who took calculus course in 2018. Instrument was students answer worksheet of calculus test. Result shows that students have different type of error in solving calculus problem Keywords: Calculus, Error Analysis, College Students PermaLink | Plain Format | Corresponding Author (Khairani -)

201	ABS-84	Mathematics Education
Improving Mathematical Creative Thinking Ability Students through Problem-Based Learning I I Supianti(1,2*), Wahyudin(2), B G Kartasasmita(1,2), E Nurlaelah(2) 1) Departemen Pendidikan Matematika, Universitas Pasundan, Jl. Sumatera No. 41 Bandung 40117, Jawa Barat, Indonesia 2) Departemen Pendidikan Matematika, Sekolah Pascasarjana Universitas Pendidikan Indonesia, Jl. Dr. Setiabudi No. 229, Bandung 40154, Jawa Barat, Indonesia *supianti[at]unpas.ac.id Abstract Creative thinking ability is one of the capabilities needed to face up various situations and problems in life, So students should have this ability. The purpose of this study is to determine the effectiveness of the use of problem-based learning method in improving students creative thinking ability. The method used is a mixed method with the explanatory sequential design. This method begins with the use of quantitative methods by performing pretest and posttest to find out the average gains normalized their creative ability, then continued the interview to find out more about their experience in using problem-based learning and its effectiveness in improving the ability of creative thinking. The result of the research shows that there is an increase of students creative thinking ability by using problem-based learning model, with pretest rate (19,9) and posttest (71,4) normalized gain score 0,856, the increase is in the high category. Interview results also show that problem-based learning is effective and can accommodate creative thinking ability, also provides flexibility to improve other cognitive abilities Keywords: Problem-Based Learning; Mathematical Creative Thinking PermaLink | Plain Format | Corresponding Author (In In Supianti)

202	ABS-93	Mathematics Education
The Creativity of Pre-Service Mathematics Teachers in Designing GeoGebra-Assisted Mathematical Task A T Fatimah Departemen Pendidikan Matematika, Universitas Pendidikan Indonesia, Jl. Dr. Setiabudi No. 229, Bandung 40154, Indonesia Abstract Abstract. The aim research is to obtain a description of designing of the GeoGebra-assisted mathematical task created by pre-service mathematics teachers. This research uses the qualitative approach of descriptive design. Participants are 26 pre-service mathematics teachers who will implement the program of teaching experience in mathematics teaching in high school in Ciamis. Participants work in the group about 3-4 people to make a GeoGebra-assisted mathematical task, the topic is the system of two linear equation. The analysis of creativity result of GeoGebra-assisted mathematical task design based on the aim of task and competency to be achieved by the students. The results obtained in this research is mathematical task designed using feedback generated by GeoGebra: (1) It is purposed to introduce new content, allowing learners to apply procedures in a new situation and developing problem-solving; (2) It produces reasoning skills in comprehension,connection, and generalization. The results show that prospective math teachers try hard to find out, create innovation and imagine to design mathematical tasks which are integrated by GeoGebra creatively. Keywords: Mathematical task, GeoGebra, creativity PermaLink | Plain Format | Corresponding Author (Ai Tusi Fatimah)

203	ABS-356	Mathematics Education
Ethnomathematical Review of Toraja Typical Carving Design in Geometry Transformation Learning Yuda Satria Nugraha (a*) a) Magister of Teaching for Mathematics Study Program, Bandung Institute of Technology (ITB) * yudasatria_nugraha[at]yahoo.com Abstract Toraja Typical Carving as one of the nation culture wealth does not only have a philosophical meaning, but also contains mathematical elements in relation to the concept of geometry transformation. Ethnomathematics is a process of presenting the mathematical ideas possessed by traditional societies on various sociocultural activities that can be observed as a mathematical activity. The mathematical exploration of Toraja Typical Carving Design such as Patedong, Pabarre Allo, Pamanuk Londong, Pasussu, and other developmental designs is an alternative learning model that can be applied in school. This is an important effort to preserve the national culture and as a cultural education to the younger generation. This is a qualitative research with ethnography approach to reveal philosophy and mathematical concept which is found on Toraja Typical Carving Design. Keywords: Ethnomathematics, geometry transformation, Toraja Carving PermaLink | Plain Format | Corresponding Author (Yuda Satria Nugraha)

204	ABS-101	Mathematics Education
Implementation of Cooperative Integrated Reading and Composition (CIRC) to Enhance Mathematical Argumentation Ability of Mathematics Teacher Students Cita Dwi Rosita (a*), Yaya Sukjaya Kusumah (b) Didi Suryadi (b) Bana G Kartasasmita (b) a) Faculty of Teacher and Science Education, Universitas Swadaya Gunung Jati Jalan Pemuda 32, Cirebon 45132, West Java, Indonesia * citadwirosita[at]unswagati.ac.id b) School of Post Graduate, Universitas Pendidikan Indonesia Jalan Setiabudhi 229, Bandung, Indonesia Abstract This study aims to analyze whether there are differences in the enhancement of mathematical argumentation ability between students who received Cooperative Integrated Reading and Composition (CIRC) learning and students who received conventional learning. The research method chosen is quasi-experiment using nonequivalent control group design. Data analysis techniques used are descriptive statistics and inferential statistics. The results show that the average enhances the ability of students mathematical argumentation who received CIRC learning are better than students who received conventional learning. When reviewed based on PMK (Prior Mathematical Knowledge), a mathematical argumentation ability of upper and middle PMK group students in CIRC learning classes are better than students mathematical argumentation in conventional learning. Nevertheless, students mathematical argumentation ability in the lower PMK groups between the CIRC learning class and the conventional learning class is not different. Keywords: CIRC learning; mathematical argument ability PermaLink | Plain Format | Corresponding Author (Cita Dwi Rosita)

205	ABS-102	Mathematics Education
Reflective Abstraction in Mathematics Learning Risnina Wafiqoh, Yaya Sukjaya Kusumah Education University of Indonesia Abstract In Mathematics learning, before the concept of learning material is related to another concept of learning material, the students are expected to have good Reflective Abstraction capability. In Mathematics learning, if a student has good Reflective Abstraction capability, the student will not find difficulty in Mathematics learning which are the difficulty in comprehending the material learned, the difficulty in comprehending and doing tasks given by the teachers, and the difficulty in learning other Mathematics learning materials. Reflective Abstraction is students capability in changing, integrating or relating available concept to to project and create structures in new situation. There are four levels on the abstraction process, namely: introduction, representation, structural abstraction, structural awareness. From the four levels of abstraction process, indicators are then derived on each level. Keywords: Reflective Abstraction, Mathematics Learning PermaLink | Plain Format | Corresponding Author (Risnina Wafiqoh)

206	ABS-360	Mathematics Education
Didactical Design Work Sheet of Complex Variabel Function Based on Epistemology, Didactical, and Learning trajector to Enhance Students Ability for repreresentation and Communication Encum Sumiaty, Endang Dedy Department of Mathematics Education, Universitas Pendidikan Indonesia, Jl. Dr. Setiabudhi no. 229, Bandung 40154, Indonesia Abstract Keywords: Didactical Design Research, learning obstacle, didactical, and learning trajectory, repreresentation dan communication skill PermaLink | Plain Format | Corresponding Author (Encum Sumiaty)

207	ABS-363	Mathematics Education
Analysis of mental structures of algebraic expression of junior high school student Yuli Fitrianti (*a), Didi Suryadi (b) a) Department of Mathematics Education Raden Fatah State Islamic University of Palembang, Indonesia *yfuin[at]yahoo.com b) Department of Mathematics Education, Universitas Pendidikan Indonesia Abstract Keywords: algebraic expression, mental structures PermaLink | Plain Format | Corresponding Author (Yuli Fitrianti)

208	ABS-365	Mathematics Education
Instrument Design of Student Self-Regulated Learning in Statistics Course Dian Cahyawati (a*), Wahyudin (b), Sufyani Prabawanto (b) a) Mathematics and Natural Science, Universitas Sriwijaya, Palembang, Jl. Palembang-Prabumulih km 32 Inderalaya, Ogan Ilir, South Sumatera, Indonesia *) dianc.fpmipa[at]unsri.ac.id b) Mathematics Education Department, Universitas Pendidikan Indonesia, Jl. Dr. Setiabudi No. 229, Bandung 40154, Indonesia Abstract The purpose of this study is to obtain an appropriate instrument that can measure student self-regulated learning in a statistics course. The first step of instrument design is to form items that related to self-regulated learning strategy from some previous research. The second step is to check the validity of instrument design to the expert-judgment. The third step is to try out the instrument design to get an instrument that has validity and reliability criteria. After all steps, the instrument can be used to measure the scale of student self-regulated learning in statistics course for the research subject. Those data were processed and analyzed using exploratory factor analysis to reduce the number of items and to form some factors which consist of some of the highly correlated items among them. These factors can be used to measure the influence of student self-regulated learning in statistics course on other variables that are suspected to be related to the variable of self-regulated learning in a statistics course. Keywords: self-regulated learning, statistics course, exploratory analysis PermaLink | Plain Format | Corresponding Author (Dian Cahyawati)

209	ABS-114	Mathematics Education
Developing Discrete Mathematics Textbook Design with PACE (Project, Activity, Cooperative And Exercise) Cycle Model to achieve students Mathematical Logical Ability Jajo Firman Raharjo(a*), Nurul Ikhsan Karimah (b) a) FKIP Universitas Swadaya Gunung Djati Cirebon. Jalan Perjuangan No.01 Kota cirebon. 45152. Indonesia *jajofirmanraharjo[at]gmail.com b)FKIP Universitas Swadaya Gunung Djati Cirebon. Jalan Perjuangan No.01 Kota cirebon. 45152. Indonesia Abstract Mathematics learning in higher education is so critical in criticizing the progress of the field of mathematical applications. Some students disclaim that why we should study mathematics such as calculus, discrete mathematics or abstract mathematics when the percentage of its use is very small for future work. The statement made us think that in reality students can not see and understand the connection between mathematics and real life. Discrete mathematics is a practical course, containing important concepts as the foundation for studying mathematical applications (Rosen, 2012). Discrete mathematical material is very difficult to understand by students because it requires mathematical, algorithmic thinking and contains logical mathematical reasoning (Logical Mathematical) in applying and modeling discrete issues. There are many criticisms by way of lecturers who convey the concept only informatively and emphasize on presenting a set of standard steps that students must follow without any understanding. On the other hand, the presentation of the material on the lecture material has not been fully effective and comprehensively touches the students realm itself, how it actually gives students access to independently develop through students mathematical logical ability and can construct their understanding, how to understand the mathematical application and can determine solution which varies from each issue. The standard of achievement of logical mathematical ability is very possible with PACE learning model (Project, Activity, Cooperative Learning and Exercise) cycle, because through this approach the students construct their own mathematical ideas with their logical ability to model mathematically a discrete problem so that the applicable discrete mathematical concept can be understood by PACE-based learning, consist of: Project , Activity, Cooperative and Exercise as a comprehensive unity cycle. This research is a development research using 4-D Thiagarajan which is define, design, develop and dessiminate to develop textbook with valid PACE-Based Learning Cycle, effective textbook implementation and practicability of device as progressive anticipation on achievement of logical mathematical capability. The results showed that the textbook developed reached valid, effective and practical. In mathematical logical ability seen from the average score of validator assessment of draft I (student textbook) = 3.63, the effectiveness seen from the average mastery of mathematical test result completeness is more than 65 with mean value = 73,41 and there is a significant difference average with the control class, the practicality of textbooks developed is also practical to the mathematical logical ability with the students positive response of more than 77% and the management of learning by the lecturers with good criteria. The long-term goal is the ISBN discrete lecture textbook, as an enrichment material and can motivate lecturers to use it as an innovative and progressive learning variation. Keywords: Developing Textbook, PACE Based Learning Cycle, Logical Mathematical Ability. PermaLink | Plain Format | Corresponding Author (JAJO FIRMAN RAHARJO)

210	ABS-115	Mathematics Education
Rigorous Mathematical Thinking: Why are Cognitive Levels Important in Three-Dimensional Learning for Pre-service Teachers? Siska Firmasari (a*), Dina Pratiwi Dwi Santi (b) (a,b)Departemen Pendidikan Matematika, Universitas Swadaya Gunung Jati, Jl. Perjuangan No. 01, Cirebon, 45135, Indonesia *siskafirmasari[at]unswagati.ac.id Abstract The study of three-dimensional material is closely related to cultivating the abstract ability of high-level students. The capability in question is rigour mathematical thinking (RMT). Not many researchers have taken the theme of RMT, whereas the published research results do not focus on the relationship with the cognitive level of pre-service mathematics teachers. RMT on pre-service teachers is important because they must have abstraction ability to teach correctly according to the concept. This study aims to determine the rigour mathematical thinking ability of pre-service teachers based on the cognitive level of the three-dimensional material. Researchers used descriptive qualitative methods, because using the instrument in the form of test sheets and interviews. The sample of the study is a student of pre-service mathematics teachers who are studying three dimensional material as much as three people. one each for low, medium, and high cognitive levels. The results show that cognitive level plays an important role in the abstract material of the third dimension for pre-service teachers who are closely related to RMT. Candidates for low cognitive level teachers enter RMT qualitative level, while quantitative level, and high abstract relational level. Research results can be a rationale for giving appropriate treatment to pre-service teachers before carrying out teaching practice. Keywords: Rigorous Mathematical Thinking, Cognitive Level, Pre-service Mathematics Teacher PermaLink | Plain Format | Corresponding Author (Siska Firmasari)

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