:: Abstract List ::
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1 
ABS256 
1. Mathematics Education 
Learning Trajectory of Social Arithmetic Learning Using Kubuk Manuk Indonesia Traditional Game Irma Risdiyanti, Insan Agung Nugroho, Rully Charitas Indra Prahmana
Universitas Ahmad Dahlan, Yogyakarta, Indonesia
Universitas Negeri Yogyakarta, Yogyakarta, Indonesia
Abstract
This research is aimed to design mathematics learning trajectory in social arithmetic using Kubuk Manuk Indonesian traditional games as starting point or context in the learning process with Pendidikan Matematika Realistik Indonesia (PMRI) approach. The method used is a design research that contains three stage, that is preliminary design, teaching experiment, and retrospective analysis. The result of this research is the design learning trajectory of arithmetic social using Kubuk Manuk Indonesian traditional game that consists three activities, that is a student playing Kubuk Manuk level 1, the student playing Kubuk Manuk level 2, the student playing Kubuk Manuk level 3. The results showed Kubuk Manuk Indonesian traditional game can stimulate students to understand their knowledge of social arithmetic concept and the stages in the learning trajectory of student have an important role in understanding the concept.
Keywords: Design Research, PMRI, Kubuk Manuk, Traditional Game, Social Arithmetic
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 Corresponding Author (Hardimah Moch Said)

2 
ABS513 
1. Mathematics Education 
Analysis of Problem Solving Ability in Social Arithmetics Fajriah(a*), Salasi R (b), Suryawati (b), Siti Fatimah (c)
a) Program Studi Pendidikan Matematika, Universitas Pendidikan Indonesia, Jl. Dr. Setiabudi No. 229, Bandung 40154, Indonesia
*fajriah[at]upi.edu
b) Departemen Pendidikan Matematika, Universitas Syiah Kuala, Jl. Hasan Krueng Kalee Darussalam, Banda Aceh 23111, Indonesia
c) Departemen Pendidikan Matematika, Universitas Pendidikan Indonesia, Jl. Dr. Setiabudi No. 229, Bandung 40154, Indonesia
Abstract
Problem solving is additional curriculum important because in the learning and completion process, students use to the knowledge and skills they have mastered to solve problems in life everyday. Therefore, purpose this research how the problem solving ability of students and the factors influence for the problem solving skills. The renovation used in this research is the mix quantitative and qualitative and type of research is descriptive. Sample research involved 28 students, grade VII students of state junior high school 7 Banda Aceh and data collected through tests and interviews. The data obtained were analyzed using Chi Square test. The results of this study indicate that grade VII students of state junior high school 7 Banda Aceh have good problem solving skills. When looking at the steps model problem solving Polya, the student not competent divising a plan the problem solving and checking again. Factors that influence student problem solving skills include cognitive factors (reading ability, analysis and logic, as well as skills appropriately), experience factors (background integration and familiarity with nonroutine issues and strategy problem solving) and affective factors (interest in the given problem, motivation and perseverance).
Keywords: Problem Solving; Polya; Social Arithmetic
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 Corresponding Author (Fajriah )

3 
ABS515 
1. Mathematics Education 
Analysis of Class X Students Reasoning Ability in Solving Linear Equation System of Two Variables Rahmadani
Mathematics Education, Universitas Pendidikan Indonesia, Jl. Setiabudhi No.229, Isola, Sukasari, Kota Bandung, Jawa Barat 40154, Indonesia
rahmadani13[at]upi.edu
Abstract
Reasoning ability is an aspect of knowledge which often is less paid of attention by teachers. It is a necessary skill for students to figure out the subjects or mathematical concepts. Many students, in fact, have an arduous situation when they attempt to comprehend with those kind of mathematical equipments. The impact of it is that the students merely learn mathematics insignificantly or obtain inadequate understanding particularly in solving mathematics problems. Based on the teachers information, one material considered most difficult is Linear Equation System of Two Variables. Numerous students are having a difficulty in creating the systems of linear equations which made up of two or more variables such that all the equations in the system are considered simultaneously. Thus this research was conducted to see how the reasoning abilities of students of grade X in accomplishing the system of linear equations in two variables. This study is descriptive qualitative research in which three participants were taken from students with different level of ability such as high ability, medium skill, and low ability. The reasoning skills were explored through descriptive analysis on the test results of students reasoning ability. According to the data analysis, the researchers concluded that the reasoning ability of high ability student is better than others. High ability student can analyze mathematical situations using appropriate patterns, compile valid arguments, draw logical conclusions, and provide the correct reasons. While in contrast, medium and low ability student cannot propose valid conclusions from the given problem, so the reasoning indicator used in this research is not fulfilled.
Keywords: Reasoning Ability, Linear Equation System of Two Variables
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 Corresponding Author (Rahmadani )

4 
ABS516 
1. Mathematics Education 
Students mathematical understanding reviewed by gender through discourse learning assisted by mathematical bet line strategy 1) I M Pratiwi, 2) S P D Rachman, and 3) V A N Ariawan
1) Pendidikan Guru Madrasah Ibtidaiyah, Universitas Islam Negeri Sunan Gunung Djati, Jl. A.H. Nasution No. 105 Cibiru, Bandung 40614, Indonesia
2) Lembimjar Neutron Bandung 4, Jl. Terusan Jakarta No.19 Kiara Condong, Bandung, Indonesia
3) Pendidikan Guru Sekolah Dasar, STKIP Majenang, Jl. Raya Pahonjean KM.2 Majenang, Cilacap, Indonesia
Abstract
Mathematical understanding is one of process skills which needs to be mastered by students in Mathematics. Mathematical understanding ability is important for students to develop as a problem solving skill in real life context through the implementation of acquired mathematics knowledge. Nevertheless, mathematical understanding ability of primary school students at the present time has not brought forth satisfactory achievement yet. Consequently, this research aims to practice discourse learning assisted by mathematical bet line strategy and its impact towards gender regarded students mathematical understanding. This research employed pre experiment method with grade fourth students as its target population. Test experiment was used to collect data of mathematical understanding ability. As for the result, the average male students and female students mathematical understanding ability showed no difference after participating in discourse learning assisted by mathematical bet line strategy. It implies that male and female students both have same mathematical understanding ability. However, there was a difference shown in problem solving strategy. Male students solved problem with the help of drawing or diagram, while female students solved problem by finding patterns and words explanation.
Keywords: discourse learning assisted by mathematical bet line strategy, gender, mathematical understanding
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 Corresponding Author (INNE MARTHYANE PRATIWI)

5 
ABS517 
1. Mathematics Education 
MapleAssisted Accelerated Learning to Enhance Learning Interest of Senior High School Students Wahyurini Ediningrum, S.Si, M.Pd
STKIP Al Amin Indramayu
Abstract
This research was motivated by the importance of learning interest of students. Learning interest of students is still low. In order that this problems can be solved, a learning model that can enhance learning interest of students is required.In this research, MapleAssisted Accelerated Learning was selected. This study aims to analyze the enhancement learning interest of students. This research was a quasiexperimental with pretestposttest control group design. The population was students at tenth grade in one of senior high schools in Purwokerto, Central Java. The sample consisted of two classes which was selected by purposive sampling. This research used four instruments:, learning interest questionnaire, observation sheets, and interview guide. Data analyzed was done quantitatively. The data were analyzed by using MannWhitney U Test and Chi Squaren test. Based on the data analyze, it is found that: (1) the achievement of learning interest ability of students who received the MapleAssisted Accelerated Learning is better than the achievement of students who received conventional learning; (2) the enhancement of learning interest of students who received the MapleAssisted Accelerated Learning is better than the enhancement of students who received conventional learning.
Keywords: Software Maple, Accelerated Learning, Learning Interest
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 Corresponding Author (Wahyurini Ediningrum)

6 
ABS773 
1. Mathematics Education 
MATHEMATIC LEARNING DESIGN USING INQUIRY BASED LEARNING FOR GEOMETRY NETS TOPIC IN ELEMENTARY SCHOOL GRADE V IMAS FARIDA KURNIA
Universitas Pendidikan Indonesia
Abstract
This study aimed to determine the design of mathematics learning using inquiry based learning for the topic of geometry nets in Elementary School grade V. The research method used was a qualitative approach with DDR (Didactical Design Research) method. The research strategy used was triangulation strategy. In this case, the researcher used essay test, observation, interview and documentation for the data source from students of grade V Cigugur Elementary School. The results of this study showed that in obtaining optimal learning outcomes, the preparation of mathematics learning design considered not only the components contained in the design of learning, but also the learning obstacle and student trajectory.
Keywords: Inquiry Based Learning, Didactical Design Research, Learning Obstacle, Learning Trajectory
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 Corresponding Author (Imas Kurnia)

7 
ABS518 
1. Mathematics Education 
TEACHERS PERSPECTIVE ON VALUES OF MATHEMATICS Siahaan, U. M. J.
Departemen Pendidikan Matematika. Universitas Pendidikan Indonesia, Jl. Dr. SetiaBudhi No. 229, Bandung 40154, Indonesia
Abstract
This study aims to investigate how teachers view the values of mathematics. This research was done because mathematics education conducted in Indonesia only develops cognitive factor without involving affective factor. This research is still uncommon in Indonesia. Therefore, this research was done in one of the schools in Bandung using qualitative analysis. During the math lesson, teachers taught math and character separately. After a series of qualitative analysis, this study concludes that the ideal mathematical learning is teaching mathematics by integrating values of mathematics, where the values are affective values.
Keywords: values of mathematics, teachers perspective
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 Corresponding Author (Uncok Manigor Jokkas Siahaan)

8 
ABS521 
1. Mathematics Education 
Self regulated learning of prospective mathematics teacher in solving linear program problem : a case of visual learning style 1) A A Nugroho, 2) D Juniati, 3) T Y E Siswono
1) Universitas PGRI Semarang
2) Universitas Negeri Surabaya
3) Universitas Negeri Surabaya
Abstract
This research is to knowing selfregulated learning of the prospective mathematics teacher with visual learning style in solving math problem. Selfregulated learning ability of a teacher or prospective mathematics teacher in solving math problem is too important to increase selfregulated learning of the students in solving math problem. The data collected by selfregulated learning questionnaire, problem solving test in mathematics and semi structured interview from prospective mathematics teacher with a visual learning style at Universitas PGRI Semarang. The result showed that the subject of selfregulated learning ability in solving math problem in planning stage, forethought and activation of the subject, have a good understanding of a problem, can identify the information that appears on the problem and can estimate the completion and procedure required. At the stage of monitoring the subject does monitoring activities in the process of solving the problem well. At the control stage the subject control in the process of solving the problem pretty well. At the reaction and reflection stage the subject does an evaluation in solving the problem well
Keywords: self regulated learning, problem solving, visual learning style
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 Corresponding Author (Aryo Andri Nugroho)

9 
ABS266 
1. Mathematics Education 
Algebraic thinking obstacle of elementary school students: a hermeneuticsphenomenology study V Pratiwi, T Herman, and D Suryadi
Program Studi Pendidikan Dasar, Universitas Pendidikan Indonesia, Jl. Dr. Setiabudi No. 229, Bandung 40154, Indonesia
Program Studi Pendidikan Matematika, Universitas Pendidikan Indonesia, Jl. Dr. Setiabudi No. 229, Bandung 40154, Indonesia
Program Studi Pendidikan Matematika, Universitas Pendidikan Indonesia, Jl. Dr. Setiabudi No. 229, Bandung 40154, Indonesia
Abstract
The main purpose of this research is to explore learning obstacles on algebraic thinking that occurs in elementary school students. It is important to understand learning obstacles to anticipate a didactic teacher during learning process and conduct an innovation in developing new learning designs. Therefore, this study is conducted by utiliizng a qualitative research with hermeneutics and phenomenology paradigms. The findings suggest that there are three types of obstacles are ontogenic obstacle, epistemological obstacle and didactical obstacle. This information is expected to be a material for developing didactic design of algebraic thinking. Furthermore, Algebraic thinking habit in elementary school is expected to reduce the difficulty when studying algebra formally.
Keywords: Algebraic Thinking, Elementary School, Learning Obstacles, Tables and Diagrams.
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 Corresponding Author (vira pratiwi)

10 
ABS522 
1. Mathematics Education 
Reliability And Validity Of A Mathematics Preparation National Assesment In Junior High Schools Insan Agung Nugroho, Heri Retnawati, Irma Risdiyanti
Universitas Negeri Yogyakarta, Yogyakarta, Indonesia
Universitas Ahmad Dahlan, Yogyakarta, Indonesia
Abstract
This research is aimed to evaluated the reliability and validity of mathematics preparation national assessment in junior high schools. The mathematics preparation national assessment was administered to the nineth grade student of many schools. The reliability of students response across the instrument and validity for inference drawn from the scores on the assessment to the graduation standart competence were examined. The consistency and the dimensionality of the assessment was assessed throughout use of Kuder Richardson correlation and confirmatory factor analysis, and then the generalizability of the derived scores was examined throughout the generalizability theory. The result of Kuder Richardson correlation from the assessment was in 0.81 range from 0.00 until 1.00. Confirmatory analysis indicate that all of observable factors had a significance influence to standart competence. The assessment,however, is interested in assessing mathematics competence of student to national assessment;Therefore, these coefficients are not alarmly low.
Keywords: reliability, validity, nasional assesment
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 Corresponding Author (Hardimah Moch Said)

11 
ABS523 
1. Mathematics Education 
Dot Plot Supports 7th Grade Students in Learning Informal Inferential Reasoning (IIR) Lukman Fakhmi (a*), Hening Windria (b)
a) Postgraduate Student of Mathematics Education, State University of Jakarta
Jalan Rawamangun Muka, Rawamangun, Jakarta 13220, Indonesia
*fakhmilukman[at]gmail.com
b) Mathematics Education, Surya Collage of Education
Jalan Imam Bonjol No. 88, Tangerang 15115, Indonesia
Abstract
In recent years, there have been many changes in the educational world that have been done a research in stages. The changes can be found out in term of material content, methods, models, and strategies. The changes reffered to in this study are in the sense of statistics known as Informal Inferential Reasoning (IIR). Simply put, IIR can be interpreted as a withdrawal of inferences from samples that apply to the population. Therefore, the researcher suggests the need for a visual representation in studying IIR in order to draw conclusions from a given data. The visual representations referred to in this research report focus on the dot plot. In addition to the dot plot, a series of learning activities in learning IIR has been designed using Realistic Mathematics Education (RME) as an approach in learning. The method used in this research is design research. This research was conducted in SMPN 7 Tangerang Selatan with research subjects as many as six students taken from one of the 7th grade in the school. As for the results obtained in this study, dot plot is able to help students to draw conclusions from samples to populations based on data presented on the graph.
Keywords: Dot Plot, Informal Inferential Reasoning (IIR), Realistic Mathematics Education (RME), Design Research
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 Corresponding Author (Lukman Fakhmi)

12 
ABS780 
1. Mathematics Education 
Mathematical SelfEsteem of Junior High School Student based on Gender Dahlia Fisher; Yaya Sukjaya Kusumah
Universitas Pasundan Bandung; Universitas Pendidikan Indonesia
Abstract
Abstrak: The formulation of the national education paradigm of the 21st century that education should be oriented to the science of mathematics and natural sciences. Mathematics is one field of science that helped determine and support the progress of science and technology. In studying mathematics, there are still many students both male and female who view mathematics as a boring subject. Based on that, the gender aspect in the learning of mathematics became the attention of educators. Gender differences not only result in different abilities in mathematics, but also how to acquire mathematical knowledge. This research is a quantitative descriptive research which aims to describe students selfesteem mathematics based on gender and its relationship with mathematics achievement. A total of 110 female students and 79 male students became respondents in this study. The results showed that female students had higher levels of mathematical selfesteem compared to male students and mathematical selfesteem had a positive relationship to student achievement.
Keywords: Students Self Esteem on Mathematics, Mathematical Achievement, Gender
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 Corresponding Author (Dahlia Fisher)

13 
ABS13 
1. Mathematics Education 
THE RELATIONSHIP BETWEEN CONCEPTUAL UNDERSTANDING AND STUDENT LEARNING OUTCOMES THROUGH THE USE OF GEOMETERS SKETCHPAD SOFTWARE Endang Istikomah
Universitas Islam Riau (UIR)
Abstract
This study aims to determine the relationship between understanding the consept with student learning outcomes through the use of geometers sketchpad software. This research is quasi experiment research conducted on 88 students class 3 SMAN 1 Pasirpenyu Inhu for 7 weeks. Instruments used in this study is the concept of understanding the exam and test results of learning. This instrument has been tested in preliminary studies to determine reliability and validity. Data ware analyzed using pearson correlation statistics. There was a significant relationship between conceptual understanding of mathematics and mathematics achievement of experimental group (r = 0.797) and control group (r = 0.721)
Keywords: Conceptual Understanding, Learning Outcomes and Geometers Sketchpad Software
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 Corresponding Author (Endang Istikomah)

14 
ABS270 
1. Mathematics Education 
STUDENTS GESTURE OF NAIVE, ROUTINE, AND SHOPISTICATED BEHAVIOR ORIENTED ON MATHEMATICAL PROBLEM SOLVING L Harun (a,b*), D Darhim (a), J A Dahlan (a), Y Harisman (a,c), A Sovia (a,c) and M T Bakar (a,d)
a) Departemen Pendidikan Matematika, Universitas Pendidikan Indonesia, Jl. Dr. Setiabudi No. 229, Bandung 40154, Indonesia
b) Pendidikan Matematika, Universitas PGRI Semarang, Jl Sidodadi Timur 24Dr.Cipto, Karang Tempel, Semarang Timur, Kota Semarang, Jawa Tengah 50232, Indonesia
*Lukmath1909[at]gmail.com
c) Departemen Pendidikan Matematika, STKIP PGRI Sumatera Barat, Jl. Gunung Pangilun Padang Utara Kota Padang Sumatera Barat 25000, Indonesia
d) Program Studi Pendidikan Matematika, Universitas Khairun Indonesia, Jl. Bandara babullah Akehuda Ternate 97751, Indonesia
Abstract
Gesture aims to see students understanding when such understanding is not visible in writing. This research is a qualitative research with descriptive method that aims to examine the gesture of three students whose orientations are different in solving the problem. Based on literature, there are three kind of behavior problem solving, there are naive, routine, and sophisticated. To reveal the gesture of the students of the three behaviors, six issues related to geometry were given to two junior high school students of equal ability. Data collection was done through mathematical problem solving test, recording of student presentation and interview between researcher and student after doing the problem. Based on the result of the research, sophisticatedgesture students tended to show a profound way of thinking. Routinegesture students were more relaxed and occasionally showed doubt and uconfidence. Naive gesture students did not tended to behave that look thoughtful. These Gestures were shown consistently for each given question.
Keywords: Gesture; Mathematical Problem Solving
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 Corresponding Author (LUKMAN HARUN)

15 
ABS527 
1. Mathematics Education 
Restructuring of STEMBased Student Thinking in Constructing The Concept of a Function Definition Ukhti Raudhatul Jannah(a*), Toto Nusantara(b), Sudirman(b), and Sisworo(b)
a) Departemen Pendidikan Matematika, Universitas Madura, Jl. Raya Panglegur Km 3,5 PamekasanMadura, Indonesia
*ukhti_math[at]unira.ac.id
b)Departemen Pendidikan Matematika, Universitas Negeri Malang, Jl. Semarang No.5, Sumbersari, Kec. Lowokwaru, Kota Malang, Jawa Timur 65145, Indonesia
Abstract
The error in constructing the definition concept of function definition formally can lead into a failure in their thinking structure to understand the concept of function definition scientifically. The efforts to correct the errors that occured through the restructurisation of thinking process. Restructuring the thinking process is STEMbased so that students can understand the definition of the function as a whole, critical and creative in solving problems. This study is qualitative research to restructure of STEMbased students thinking in constructing of function definition concept based on the assimilation and accomodation process through the provision of scaffolding. The research subjects are 2 students choosen from 18 students by consideration that the students meet the determined criteria. The result are restructuring of thinking of S1 on relation error with Cartesian product scaffolding, the general definition of function with relation scaffolding, and function representation through scaffolding of function example. The restructuring of S2 thinking on cartesian product error with identifying set scaffolding, relation error with cartesian product scaffolding, general definition of function with relation scaffolding, and function representation through scaffolding of function example. The restructuring of student thinking is still weak because of the many scaffolding needed to achieve the learning objectives
Keywords: Function Definition, STEM, Assimilation, Accomodation, Scaffolding
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 Corresponding Author (Ukhti Raudhatul Jannah)

16 
ABS784 
1. Mathematics Education 
21st Century Skills; Critical Thinking in Education for Sustainable DevelopmentBased Mathematics Learning Jaya Dwi Putra, Didi Suryadi, Dadang Juandi
Universitas Riau Kepulauan, Universitas Pendidikan Indonesia
Abstract
One of the few skills needed in the 21st century skills is learning and innovation skills. This capability contains critical thinking. Critical Thinking is one of the abilities provided to students in learning mathematics. In line with that critical thinking is also one of the competencies developed in education for sustainable development. The emergence of the term sustainable development is the result of growing awareness of globalization. This paradigm builds awareness that the earth is a closed system. In this connection, learning to live a sustainable life plays a key role in helping us meet the challenges of providing for life. As students understand sustainability as an aspect of their social, economic and environmental responsibility, they will become citizens who see themselves as part of nature and other human beings. Thus, one day they will have the capacity to facilitate the development of sustaining activities rather than vice versa. In education for sustainable developmentbased mathematics learning is expected to bring up mathematical ideas tailored to social awareness, the principle of mutual assistance and mutual help and the formation of longterm thinking.
Keywords: 21st Century Skills, Critical Thinking, Education for Sustainable Development, Mathematics Learning
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 Corresponding Author (Jaya Dwi Putra)

17 
ABS785 
1. Mathematics Education 
ENHANCING STUDENTS CRITICAL THINKING DISPOSITION THROUGH COOPERATIVE INTEGRATED READING AND COMPOSITION (CIRC) LEARNING MODEL Cita Dwi Rosita, Yaya S. Kusumah, Didi Suryadi, and Bana G. Kartasasmita
Universitas Pendidikan Indonesia
Abstract
This study aims to analyze comprehensively the students achievement and enhancement in critical thinking disposition of mathematics (CTDM) who received CIRC learning and conventional learning in terms of overall and prior mathematical ability (PMA). This study devoted to analyze effectiveness of CIRC learning on the students achievement in critical thinking disposition of mathematics. The research method used is quasiexperiment with nonequivalent control group design. The sample in this study is 80 students of mathematics education program, using purposive sampling of 120 total population. The results of this research show that the overall, the average of students achievement and enhancement in CTDM who received CIRC learning is higher than those who received conventional learning; there is a difference of average achievement and enhancement in CTDM between the students who received CIRC learning and conventional learning based on PMA; and there are differences in the achievement and enhancement of students CTDM among PMA groups (upper, middle, lower) on CIRC learning.
Keywords: CIRC learning, students critical thinking disposition of mathematics
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 Corresponding Author (Cita Dwi Rosita)

18 
ABS18 
1. Mathematics Education 
Analysis of Factors Affecting The Undergraduate Student Quit Study Viarti Eminita, Ririn Widiyasari
Program Studi Pendidikan Matematika Fakultas Ilmu Pendidikan Universitas Muhammadiyah Jakarta
Abstract
Many undergraduate students on Faculty of Education University of Muhammadiyah Jakarta who are beginning to fall in their motivation to study and then quit their study. Based on data in 2010 there were 20.22% students quit the study. Many factors that affect students quit their study. This research is expected to contribute to overcoming the problem. The purpose of this study is to determine what factors affect the student quit studying. This research uses Poisson or Binomial Negative regression analysis to know these factors. Both regression models used are equally the fit model to be used, because based on the result of overdispersion study did not occur. Based on the AIC and LogLikelihood criteria it is concluded that negative binomial model is more fit than Poisson regression models. Wald test results for each parameter in the Negative Binomial regression are only three variables that affect students quit the study. The three parameters are the percentage of Jakarta students (X2), the percentage of male students (X3), the average student age (X4). The three variables have a positive effect, which means that increasing value in X2, X3, or X4 will increase the number of the students who quit studying.
Keywords: Binomial Negative Regression, Count Data, Poisson Regression, Quit Study
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 Corresponding Author (VIARTI EMINITA)

19 
ABS19 
1. Mathematics Education 
Improving External Mathematical Connections and Students Activity using Ethnomathematics D A Kusuma (1,2), D Suryadi (3), J A Dahlan (3)
(1) Sekolah Pascasarjana Universitas Pendidikan Indonesia, (2) Departemen Matematika FMIPA Universitas Padjadjaran, (3) Universitas Pendidikan Indonesia
Abstract
Most students repute that mathematics is a difficult subject and has no connections in real life. It makes students external mathematical connections to be low, students less active in learning process, and it affected on the low achievement of students in mathematics. Ethnomathematics is one of the attempts to overcome it. Indonesia is a multiculture country and the people usually do anything in daily life influenced by their culture. Ethnomathematics is an instruction approach that makes a connection between mathematics concepts dan culture. The purpose of this study is to conduct experiment by applying ethnomathematics to the eighth grade students of Junior Secondary School in Tegalluar Village. The method that implemented in this study is experiment. The result of this study shows that students achievement using ethnomathematics is better than their average achievement using direct instruction. Conclusion of this study is ethnomathematics can improve students external mathematical connections and students activity in learning process.
Keywords: External Mathematical Connections, Real Life, Students Activity, Students Achievement, Culture, Mathematics Concepts, Ethnomathematics
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 Corresponding Author (Dianne Amor Kusuma)

20 
ABS787 
1. Mathematics Education 
STUDENTS LOOKING BACK ON MATHEMATICAL WORD PROBLEM SOLUTION Sufyani Prabawanto
Universitas Pendidikan Indonesia
Abstract
An important aspect of solutioning on mathematical word problem is looking back. The study aims to analyze students ways of looking back on mathematical word problem solving solution. The method used in this study was qualitative with grounded theory was used to understand the data and build the models. The subject were fifth grader students of an elementary school in Bandung, Indonesia. Through the activities of looking back, students can understand the mistakes and enable them to make improvements. Looking back is a powerful activity that allows students to be flexible when building a solution. By looking back, students can validate ideas throughout the problem solving process
Keywords: Looking Back
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 Corresponding Author (Sufiani Prabawanto)

21 
ABS276 
1. Mathematics Education 
The development of grade 11 students mathematical literacy on sequences and series using mathematical modelling Chanon Kanthawat(a*), Wanintorn Supap(a*), Chakkrid Klineam(b*)
a) Faculty of Education, Naresuan University, Tha Pho, Mueang Phitsanulok District, Phitsanulok 65000, Thailand
b)Faculty of Science, Naresuan University, Tha Pho, Mueang Phitsanulok District, Phitsanulok 65000, Thailand
Abstract
Mathematical literacy is one of the necessary performances to applies mathematical knowledge and skill in reallife. The objective of this research was to develop grade 11 students mathematical literacy through mathematical modelling in topic of sequences and series. The mathematical modelling is a process that uses mathematics to represent, analyze, make predictions or otherwise provide insight into realworld phenomena. The participants were 36 11th grade students along with the classroom action research methodology. The results of this study had demonstrated that the competency of mathematical literacy can be enhanced by using the mathematical modelling process. The data also indicate that two competencies, formulating situations mathematically and interpreting, applying and evaluating mathematical outcomes obviously were improved. During the time, employing mathematical concepts, facts, procedures, and reasoning was slightly improved. It necessary for educator to provide the studentfamiliar situation to be meaningful lesson for student.
Keywords: Mathematical literacy, Mathematical modelling
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 Corresponding Author (chanon kanthawat)

22 
ABS21 
1. Mathematics Education 
How inclusive school students understand fraction T Ikhwanudin, S Prabawanto, and D Suryadi
Departemen Pendidikan Matematika, Universitas Pendidikan Indonesia, Jl. Dr. Setiabudhi No. 229, Bandung 40154, Indonesia
Abstract
This research aims to analyze students ways of understanding when they learn fractions. The respondents were 23 students of the 7th graders in the inclusive school. The research approach was qualitative, with descriptive method. The data were collected through paper and pencil measure, document and media analysis, observation, and interview. The data were analyzed by grounded theory. The results showed four mental acts; those are interpreting, problem solving, explaining, and inferring as well as ways of understanding and ways of thinking that are relevant with those mental acts
Keywords: fractions learning, students ways of understanding, inclusive school
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 Corresponding Author (Trisno Ikhwanudin)

23 
ABS277 
1. Mathematics Education 
Mathematics anxiety in dealing math exams Terri Murizki Anugrah (a*), Tri Atmojo Kusmayadi (a), and Laila Fitriana (a)
a) Magister Pendidikan Matematika, Universitas Sebelas Maret, Jl. Ir. Sutami No. 36A, Surakarta 57126, Indonesia
*terrimurizki[at]gmail.com
Abstract
Mathematics anxiety is one of the factors impacting the students achievement. The current study aims at describing the mathematics anxiety of XI class students. This study emphasizes the mathematics anxiety in general and each indicator. This research is a qualitative study adapting the case study approach. The purposeful sampling has been used to select the subjects. The subjects of this study are 17 students of class XI Science in Senior High School 1 Puding Besar. Data have been collected through observations, interviews and questionnaires of mathematics anxiety. Students have been asked to fill out a questionnaire developed by the researcher. Three mathematics anxiety indicators have been considered including somatic, cognitive, and attitude in the context of math exams. The data analysis of the questionnaire findings showed that students generally experience mathematics anxiety at moderate level. The total percentage of mathematics anxiety is 29.4% at high level, 41.2% at moderate level, and 29.4% at low level. The results of interviewing the teachers showed that both students with high and low achievement could encounter light anxiety what could become an aspect that requires teachers attention when preparing their students to carry out mathematics exams.
Keywords: mathematics anxiety
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 Corresponding Author (Terri Murizki Anugrah)

24 
ABS533 
1. Mathematics Education 
Rigorous Mathematical Thinking (RMT) Based on Gender in the Real Analysis Course Siska Firmasari (1), Herri Sulaiman (2), Wahyu Hartono (3), Muchamad Subali Noto (4*)
(1,2,3,4) Departemen Pendidikan Matematika, Universitas Swadaya Gunung Jati, Jl. Perjuangan No. 01, Cirebon, 45135, Indonesia
*msubalinoto[at]fkipunswagati.ac.id
Abstract
Real analysis is a course that is abstract level. The interviews with some students reveal those perceptions. Male students are weak in understanding basic concepts, while women are always follow on examples of questions and answers from lecturers. Consequently, their abstraction abilities do not develop. As a result, regular lectures of Real Analysis have not been able to elevate students rigorous mathematical thinking abilities efficiently for both genders. To provide appropriate treatment to each student, the lecturer should know the rigourous mathematical thinking ability of the students. Therefore, this study aims to identify students rigourous mathematical thinking abilities in Real Analysis courses. The research method is descriptive qualitative. The research instruments are test questions and interview sheets. This study concludes students with top cognitive skills are at the RMT level 3 cognitive function of abstract relational thinking. Medium at level 2, which is quantitative thinking with accuracy. Finally, the low cognitive skills are at level 1, namely qualitative thinking. Male students of all three levels of cognitive ability have a simple way of thinking impacting on a short answer pattern. While female students, the way of thinking systematic so that the pattern of the answer is long but sorted.
Keywords: Rigorous Mathematical Thinking, Gender, Real Analysis
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 Corresponding Author (Siska Firmasari)

25 
ABS24 
1. Mathematics Education 
The Development of Assessment for Learning Model with Goformative and Pen Tablet Toto Suwanda,Imam Sujadi, Ikrar Pramudya
Department of Magister Mathematics Education, Faculty of Teacher Training and Education
Universitas Sebelas Maret Surakarta, Indonesia
Abstract
This research aims to obtain the development of Assessment For Learning (AfL) model in mathematics learning using technologies in the forms of website goformative and writing tools such digital pen or pen tablet. Goformative and Pen Tablet are used to create more optimal time in using the AfL model. As we know, AfL is important to be applied in learning process, but there is an obstacle about time so that teachers rarely use it. The method used in this research is modification of ten research and development stages proposed by Borg & Gall grouped into three stages namely (1) preliminary study, (2) development, (3) evaluation. Results of research show that the application of this new model provides higher achievement compared with former learning model conducted by teachers as well as teachers think that there is more optimal application time of AfL model in the learning process. Based on the research results, it is concluded that this AfL model is easy to be applied; there is also more optimal implementation time and it leads to better students learning achievement compared with the ones do not apply it.
Keywords: Assessment For Learning, Goformative, Pen Tablet, Learning Achievement
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26 
ABS536 
1. Mathematics Education 
Profile of Mathematical Knowledge for Teaching of Prospective Mathematics Teachers in Development Set of Equipment Mathematics Learning Sumarni (a)(b*), Darhim (a), Siti Fatimah (a)
a) Departemen Pendidikan Matematika, Universitas Pendidikan Indonesia, Jl. Dr. Setiabudi No. 229, Bandung 40154, Indonesia
*marnie.1205[at]gmail.com
b) Program Studi Pendidikan Matematika, Universitas Kuningan, Jl. Cut Nyak Dhien No. 36A, Kuningan 45513, Indonesia
Abstract
The purpose of this case study is to obtain description of mathematical knowledge for teaching (MKT) of prospective mathematics teacher in development set of equipment mathematics learning, in the form of lesson plan and lesson material linear equation of two variable. Subjects in this research are prospective mathematics teacher of Mathematics Education Study Program Universitas Kuningan Semester V academic year 2017/2018. Data analysis used in this research is qualitative data analysis technique that include data reduction, data display, as well as drawing conclusion and verification of preservice mathematics teacher work sheet, observation and interview. MKT consisting of Mathematics Content Knowledge (MCK) and Mathematics Pedagogical Content Knowledge (MPCK). MKT is contributes to the ability of prospective mathematics teacher in developing set of lesson design of mathematics learning. Based on the case study, it can be concluded that: Students with good MCK can develop lesson materials properly. Students with MCK have less difficulty in developing lesson materials because they lack material understanding well. Students with good MPCK can be directed to develop lesson plan well. Most students have difficulties in formulating learning objectives and in making scenarios of teacher and student activities according to the learning model used
Keywords: Mathematical Knowledge for Teaching, development set of equipment mathematics learning
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 Corresponding Author (Sumarni Sumarni)

27 
ABS25 
1. Mathematics Education 
Mathematical Problem Solving and Mathematical Connections Abilities of Students with Accelerated Learning Cycle Sindi Amelia
Department of Mathematics Education, Universitas Islam Riau, Jl. Kaharuddin Nasution No. 113, Marpoyan , Pekanbaru 28284, Indonesia
Abstract
This quasi experimental research examines the abilities of mathematical problem solving and mathematical connections through the application of Accelerated Learning Cycle. The samples of research were 63 students of seventh grade students in Riau Province, which were divided into an experimental group and a control group. The research instruments were mathematical problem solving and mathematical connection abilities test, and the data were analyzed using MannWhitney and two ways ANOVA test. The results of this study indicate that there was a significant effect of Accelerated Learning Cycle on the overall students mathematical problem solving and connection skills (p = 0,000; p <0.050) and in all categories of KAM, except both of two categories on mathematical connections ability, high (p = 0.349; p <0.050) and middle (p = 0.100; p <0.050), did not significantly differ. In the problem solving and mathematical connections abilities of students, there was no difference between the categories of KAM and there was no interaction between learning and mathematical ability.
Keywords: mathematical problem solving ability, mathematical connection ability, accelerated learning cycle
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28 
ABS537 
1. Mathematics Education 
Attitude of Student Openness toward Relational Thinking Bagus Ardi Saputro, Didi Suryadi, Rizky Rosjanuardi, Bana G Kartasasmita
Universitas Pendidikan Indonesia
Abstract
The purpose of this study on determine the attitude of student openness on relational thinking in terms of arithmetic ability. Five questions were given to three students through a interview. The interview results were analyzed to determine the students openness on relational thinking that has been previously taught. Students who have high and low arithmetic ability have an openness to relational thinking, while students moderate are reluctant to accept relational thinking.
Keywords: relational thinking, attitude of student openness, algebra
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29 
ABS282 
1. Mathematics Education 
Students Difficulties on Solving Mathematical Problem Based on ESD Objectives Ika Latifatun Nikmah, Dadang Juandi, and Sufyani Prabawanto
Universitas Pendidikan Indonesia
Abstract
The objective of this study was to analyze students difficulty on solving mathematical problem based on Education for Sustainable Development (ESD) objectives. One of ESD objectives is Clean Water and Sanitation used as context of mathematical problem given beside economic and social context. The method used in this study was descriptive qualitative research. The subject of this study were 34 high school students. They were tested mathematical problem deal with derivatives based on ESD objectives. Polyas problemsolving steps were used to analyze students difficulties on solving mathematical problems that focus on derivatives. The results showed that students have difficulty in devising a problemsolving plan which related to ESD context when they seek maximum value using the concept of the first derivative algebraic functions and they have error in determining the derivative functions. The conclusion is that students are able to solve mathematical problems but they have difficulties when meet the problem related with mathematical problems in the ESD context. This can serve as a basis for further research on the development of high school mathematics teaching materials based on ESD objectives to improve mathematical problem solving ability.
Keywords: ESD, Mathematical Problem solving, Students Difficulties
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 Corresponding Author (Ika Latifatun Nikmah)

30 
ABS283 
1. Mathematics Education 
PRELIMINARY STUDY ON THE LEVEL OF STUDENT GEOMETRY THINKING BASED ON VAN HIELE TEORY: THE CASE OF QUADRILATERAL Yuliana Selfia Eko, Sufyani Prabawanto, Al Jupri
Universitas Pendidikan Indonesia
Abstract
This study aims to describe the level of students in solving quadrilateral problems based on Van Hiele theory. Therefore, we conducted a small, qualitative study involving 30 junior high school students in one of the schools in NTT, Indonesia. The subject of building a rectangular flat. The instrument used is a quadrilateral description of lecturers who have mathematics education background. Futhermore, the test results are based on the level of Van Hiele thinking. The results show that 60% of students who are at level 0 (visualization), 30% students who are classified as level 1 (abstract) and 10% students who classified level 2 (reasoning). Further analysis shows that in completing the given problem, students tend to regard images as absolute standards of truth and do not capture the hidden information contained in the image so that difficulty in completing them. Students also tend to be fixated on formulas resulting in a lack of reasoning ability in solving contextual problems. Similarly, when finalizing the problem of proof, students still use informal evidence using examples.
Keywords: geometric thinking, Van Hiele Teory, quadrilateral
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 Corresponding Author (Yuliana Selfia Eko)

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