Indonesia Conference Directory

Corresponding Author
Drajat Friansah

Institutions
STKIP PGRI Lubuklinggau

Abstract
Ethnomatematics as the crossing between culture, historical traditions, socio-culture and mathematics. As a part of an entity from Negara Kesatuan Republik Indonesia which has a diversity of cultures, its influenced by various civilizations that seen from the cultural heritage. The aimed of this research to identify ethnomatematics which found in cultural heritage in Musi Rawas regency through ethnographic studies. Data collection techniques used observation, field notes, interviews and document checks. Based on the search from cultural heritage that spread across 6 sub-regency include Rumah Bari, Makam Keramat, Raudhatus Sa-adah Mosquew. The most mathematics concept in the three cultural reserves were geometric shapes in the form of space, motif and carvings.

Keywords
Ethnomatematics, Cultural Heritage, Musi Rawas

Topic
Mathematics Education

Link: https://ifory.id/abstract/87uVnwgkvM6a

Corresponding Author
Rika Faridah

Institutions
Departemen Pendidikan Matematika, Universitas Pendidikan Indonesia
Jl. Dr. Setiabudi No. 229 Bandung
*faridahrika[at]gmail.com

Abstract
The problem is an incompatibility between goals or expectations and reality. Identifying the level of students problem solving abilities is very important. It is due to the fact that the problem solving ability is related to how students face occurring problems. Therefore this study aims to identify mathematical problem solving ability. This research was conducted on class VII students in one of the junior high schools in Kota Bandung. The material chosen in this study was a quadrilateral flat build. The results showed the percentage of achievement of problem solving indicators that the mathematical problem solving ability of junior high school students in quadrilateral material was still low with an average score of 28.41%. In addition, when students solve a given problem, they immediately use the formula and enter the numbers listed on the question without understanding which strategy should be used and not checking the validity of the results or answers. This ability can be improved by doing problem solving oriented learning and familiarizing students according to the stages of problem solving.

Keywords
Mathematical problem solving ability, Quadrilateral

Topic
Mathematics Education

Link: https://ifory.id/abstract/mwxMQUTdX34z

Corresponding Author
Lismu Dhita Septyaningrum

Institutions
a) Physics Education Department, Universitas Negeri Jakarta, Jl. Rawamangun Muka No.1, Jakarta 13220, Indonesia
*dmuliyati[at]unj.ac.id
b) Physics Department, Universitas Negeri Jakarta, Jl. Rawamangun Muka No.1, Jakarta 13220, Indonesia

Abstract
Preserve teachers must be prepared to integrate technology in classroom learning. This technical capability must be adapted to the material to be taught. Material for physics has a different character, especially in the selection of media. Media on one material is not necessarily suitable for other materials. Preserve physics teacher must have the ability to analyze content and find appropriate technology in making media. The purpose of this study was to implement project learning for ICT based learning in physics courses for a preserve physics teacher. This research can be used to see how significant Technological-Content-Knowledge (TCK) preserves physics teacher is through Project-Based Learning (PjBL). This PjBL is applied to the undergraduate preserve physics teacher level. All students participated in full lectures for 16 meetings, which were combined between the explanation of topic matter guidance and progress report. The lecturer will give feedback to all students. The data taken is the initial ability of students, evaluation of progress reports, and project output of each student. The results obtained were students preserve physics teacher had a portfolio and an increase in TCK preserves physics teacher, were initially students were still having difficulties in applying technology with physics content. Another finding is that students experience increased self-efficacy.

Keywords
Project based Leaning; Technological-Content-Knowledge; Preserve physics teacher

Topic
Physics Education

Link: https://ifory.id/abstract/qUfvw6jH9dXN

Corresponding Author
Yusup Junaedi

Institutions
Mathematics Education School of Postgraduated Studies Universitas Pendidikan Indonesia

Abstract
This research is motivated by the importance of reflective. Therefore, researcher applying Realistic Mathematics Education (RME) approach, since this approach is expected to improve the ability of reflective thinking. The propose of this research to implementation of reflective thinking skill to RME approch, determine whether the achievement and enhancement capabilities mathematical abstraction of students who received RME approach and determine students- errors of reflective. The method used in this research is mixed method with incorporation of QUANTITATIVE-qualitative and concurrent embedded design. The study involved two classes of experimental class and control class. The population of this research is all students in grade VIII SMP Negeri 4 Kota Serang. The instrument used in this study a of reflective thinking ability test instruments, non-test instruments in the form in the form is observation sheet, interview guides, documentation as well as the researchers. The conclution of this research that the achievement and improvement of reflective thinking abilities experimental class is better than the control class. Students- errors when the test of reflective thinking ability include errors in making mathematical modeling, concept errors, systematic errors and miscalculations.

Keywords
Reflective Thinking Skill, Realistic Mathematics Education

Topic
Mathematics Education

Link: https://ifory.id/abstract/hENdTxkRMQDn

Corresponding Author
Desy Herdian Pramadhita

Institutions
(a) Science Education Departement, Universitas Pendidikan Indonesia, Jl. Dr. Setiabudi No. 229, Bandung, 40154, Indonesia
*desyherdian[at]upi.edu
(b) Physics Education Departement, Universitas Pendidikan Indonesia, Jl. Dr. Setiabudi No. 229, Bandung, 40154, Indonesia

Abstract
In this globalization era, 21st century learning should be implemented such as STEM-based learning with varied instructional material that involved the integration of Science, Technology, Engineering and Mathematics (STEM) to help students in mastering 21st century skills. The purpose of this research was to investigate the effect of STEM-based module on sound wave topic through the improvement of students- creative thinking. The method that used in this research was weak experimental research and the design was one-group pretest-posttest design. The sample was taken by simple random sampling technique which involved 31 students from the population of 8th grade students at Junior High School in Bandung. In order to measure the improvement of students creative thinking, pre-test was given before implementing STEM-based module and post-test was given after implementing STEM-based module. The result of the research showed that based on the analysis of the students- creative thinking results, the average N-Gain is 0,71 which categorized as high improvement. The result indicated that there were improvement of students- creative thinking skills. Based on the result, the research on STEM-based learning in other topics such as energy, optics and electricity were recommended.

Keywords
STEM, STEM-based module, creative thinking, sound wave, experimental research

Topic
STEM Education

Link: https://ifory.id/abstract/34fqrDhM2vGY

Corresponding Author
Rizky Nurul Hafni

Institutions
a) Program Studi Pendidikan Matematika, Sekolah Pascasarjana, Universitas Pendidikan Indonesia, Bandung
*rizkynurulhafni[at]upi.edu
b) Departemen Pendidikan Matemtika, Program Studi Pendidikan Matematika, Sekolah Pascasarjana, Universitas Pendidikan Indonesia, Bandung

Abstract
The industry 4.0 marks the fast-growing technology in many fields that seeks the efficiency of each processes in the industry. The efficiency is derived from the real-time dataset that is collected from a vast amount of data from many instruments which called as big data. Big data processing is used to predict market trends, discover new problem-solving and many more. Critical thinking, statistic, computing and the ability to understand how the world works are among important factors that has to be needed in big data processing. Nevertheless, the lack of good educational platform to host such important skills in current Indonesian education makes it harder to cultivate good human resources that are able to comprehend big data processing. Science, technology, engineering, and mathematics (STEM) is known to be the holistic educational approach that combines various disciplines into one set of educational approach to help students gain more skills and sharpen their knowledge in regards of the fast-growing industry 4.0 in Indonesia.

Keywords
Mathematics; Education; Industry 4.0; STEM

Topic
STEM Education

Link: https://ifory.id/abstract/6xehAJrZzudF

Corresponding Author
Laely Farokhah

Institutions
a) Program Studi Pendidikan Guru Madrasah Ibtidaiyah, Fakultas Agama Islam, Universitas Muhammadiyah Jakarta, Jl. K. H. Ahmad Dahlan, Tangerang Selatan, Indonesia
b) Departemen Pendidikan Matematika, Universitas Pendidikan Indonesia, Jl. Dr. Setiabudi No. 229, Bandung 40154, Indonesia

Abstract
The facts based on the preliminary study showed that most of students find difficulties to communicate mathematical ideas. The present study is aimed to describe the improvement of mathematical communication ability between students who learn through project based learning using mind map technique and students who learn through project based learning without mind map technique. This study used quasi experiment using non-equivalent group design. 63 students of one of elementary school in Bandung city were taken as subject of this study. The instrument of this study used mathematical communication test. The data were analyzed using non parametric statistic. The result showed that the improvement of mathematical communication ability of students who learn through project based learning using mind map technique is better than the improvement of mathematical communication ability of students who learn through project based learning without mind map technique.

Keywords
mathematical communication, project based learning, mind map, elementary school

Topic
Mathematics Education

Link: https://ifory.id/abstract/xMF9D4tf72Yr

Corresponding Author
Maulidiya -

Institutions
(1)Program Studi Pendidikan Matematika, Sekolah Pascasarjana, Universitas Pendidikan Indonesia, Jl. Dr. Setiabudi No. 229, Bandung 40154, Indonesia
(2) Departemen Pendidikan Matematika, FPMIPA, Universitas Pendidikan Indonesia, Jl. Dr. Setiabudhi No. 229, Bandung 40154, Indonesia

Abstract
Critical thinking is needed to solve problems openly. However, the critical thinking ability of Indonesian junior high school students haven-t been optimal. One of mathematics teaching and learning that can improve students critical thinking ability is Differentiated Instruction (DI) approach. The purpose of this study is to know: (1) the improvement critical thinking ability of students who obtained learning with the Differentiated Instruction approach; (2) the differences in the improvement in critical thinking ability in terms of student learning independence. The method used in this study was quasi experiment with the nonequivalent control group design. The subjects of this study were eighth grade students of one of the junior high schools in Bandung. The results shows that: (1) there are differences in the improvement in critical thinking ability of mathematical students who experienced teaching and learning using the Differentiated Instruction approach and conventional approach; (2) there are differences in the increase in critical mathematical thinking ability of students who have high, medium and low learning independence. The results of research and data analysis, conclude that the Differentiated Instruction approach can improve students critical thinking ability.

Keywords
Critical Thinking Ability, Learning Independence, Differentiated Instruction (DI) approach

Topic
Mathematics Education

Link: https://ifory.id/abstract/FNWU3ZpdBaY4

Corresponding Author
Dadan Setiawan

Institutions
Universitas Pendidikan Indonesia

Abstract
Abstract. Improving students- understanding of the material being studied is one of the main goals in education. This study aims to determine the influence of read, answer, disscuss, explain, and create model (RADEC) on the mastery of concepts of elementary school students in water cycle topic. This research is quasi-experimental research that is experimental class using RADEC model and control class using conventional model. The samples used in this study are 38 students in the experimental class and 39 students in the control class. Data collection techniques using test. From the results of research indicate that the pre-test score are 48,02 in the experimental class and 45,67 in the control class. After treatment, the results of post-test score are 85,85 in the experimental class and 79,05 in the control class. Using t-test, the result of sig value obtained = 0.00, so the results indicate possitive effects of the RADEC model in improving the mastery of concepts of elementary school students.

Keywords
Model RADEC, penguasaan konsep, siklus air

Topic
Science Education

Link: https://ifory.id/abstract/AtE9zfQnjupX

Corresponding Author
Sahrun Nisa

Institutions
1Postgraduated School of Universitas Pendidikan Indonesia
2 Math Education Department of Universitas Pendidikan Indonesia
3. Math Education Program Study of Universitas Riau

Abstract
The importance of students having a mathematical habit of mind makes this soft skill need to be trained and developed since primary education. The low elementary school students- habit of mind underlies the need for action in learning that can facilitate the growth of the habit. The researcher examines the effect of applying realistic mathematics on students habit of mind. The population of this study was fourth-grade elementary school students by taking a sample of 3 schools, where each sample consisted of two classes with a total of 144 students. The results of the study show that realistic mathematical approaches have a significant impact on increasing habit of mind of elementary school students.

Keywords
elementary school mathematics, mathematical habit of mind, realistic mathematics education.

Topic
Mathematics Education

Link: https://ifory.id/abstract/AHRQFZBC9Pvz

Corresponding Author
slamet sri rahayu

Institutions
Mathematics Education Department of Graduate Program Sebelas Maret University, Surakarta, Indonesia.

Abstract
The purpose of this research was to look for differences in mathematics learning achievement in student using the SFAE learning model with games and without games for student with (1)High Adversity Quotient (2) medium Adversity Quotient and (3 ) low Adversity Quotient. The research method used is experimental method.The result of hypothesis, (1)testing shows that H0 is rejected, (2)testing shows that H0 is accepted, (3)testing shows that H0 is accepted

Keywords
Math, Student Facilitator, SFAE, GAme

Topic
Mathematics Education

Link: https://ifory.id/abstract/PrJEA6Fzmj7Q

Corresponding Author
Khadisa Harsela

Institutions
a) Prodi Pendidikan Matematika, Sekolah Pascasarjana, Universitas Pendidikan Indonesia, Jl. Dr. Setiabudi No. 229, Bandung 40154, Indonesia
*khadisaharsela[at]upi.edu
b) Prodi Pendidikan Matematika, Sekolah Pascasarjana, Universitas Pendidikan Indonesia, Jl. Dr. Setiabudi No. 229, Bandung 40154, Indonesia

Abstract
This study aims to determine the level of resilience and mathematical problem-solving abilities of senior high school students of class XI IPA. The subjects of the study were 63 senior high school students in class XI IPA even semester 2018/2019 who were studied at one of the senior high school in Baleendah-Kabupaten Bandung. There are two types of instruments used in this study, namely test and non-test instruments. Test instruments are useful for measuring the level of mathematical problem-solving abilities of students, while non-test instruments are in the form of questionnaires, useful for measuring the level of mathematical resilience of students. The results showed that (1) the level of students mathematical resilience was at the medium level, and (2) the level of students mathematical problem-solving ability was at the medium level.

Keywords
Mathematical resilience; Mathematical problem-solving ability; Senior high school students of class XI IPA

Topic
Mathematics Education

Link: https://ifory.id/abstract/R8KnD7hveAX3

Corresponding Author
Pimonpan Chantarapimon

Institutions
a) Institute for Innovative Learning, Mahidol University, 999 Phuttamonthon 4 Road, Salaya, Nakhon Pathom 73170, Thailand
pimonpan18101979[at]gmail.com
*corresponding author: wararat.won[at]mahidol.edu
b) National Science Museum, Thailand, Technopolis, Klong 5, Klong Luang, Pathum Thani 12120, Thailand

Abstract
Mostly, logic gates were communicated by permanent exhibits in museums. Our logic gate board game was created to be an alternative way for communicating contents and developing children-s self-motivation in the informal context. Three logic gates—AND-gate, OR-gate, and NOT-gate—were embedded in the mechanism of the board game. With the game interaction, the main goal is to encourage the children to create their own strategies to complete a mission by using conditions (gates). A fairy tale was used to engage the children to play the game. We investigated children-s understanding and intrinsic motivation through playing the board game in the informal context. The participants of this study were 21 primary children who participated in a one-day camp at the science museum. To examine the children-s motivation, the data was collected by an intrinsic motivation survey, a behavior observation checklist, and an interview, while a conceptual knowledge test, and the interview were utilized to gather the children-s understanding. All data were collected and analyzed by mixed methods. The participants were introduced the rules and the context of the game before playing the game. During the game play, the children-s interaction with friends and the game were observed. The children were assessed by completing the test and the survey consecutively. Then, a debriefing session was held at the end of the assessment. Some voluntary children were interviewed to investigate both their understanding and motivation. The results of the survey show the success in promoting the children-s intrinsic motivation, e.g. perceived learning, engagement, immersion, challenge, and skills. Particularly, the engagement factor has the highest frequency on the survey. Corresponding to the interview result, the engagement, enjoyment, concentration, and interest were the most mentioned. From the observation, it seems that the children were completely focused throughout the game. Besides, in the understanding aspect, Most students could develop their understanding of the logic gates through the board game. Supported by the interview result, the children mentioned the strategy they used to complete the mission which required their logical thinking. However, it seems that the children still could not apply knowledge gained from the board game to the real-life problem. In contrast to the enjoyment in the game session, they showed uncomfortable faces when they were asking to do the conceptual knowledge test since it did not normally happen in the informal context. Importantly, the board game could be used to promote children-s understanding and motivation of the logic gates in the informal setting.

Keywords
logic gates, museum, informal context game-based learning,board game

Topic
Science Education

Link: https://ifory.id/abstract/UkNXer2twJh4

Corresponding Author
Rani sugiarni

Institutions
Suryakanana University

Abstract
Many students who think of mathematical learning is very difficult so many students who do not like mathematics with the complexity of the problem. To keep them motivated and interested to do exercises about mathematics there are adequate supporting facilities KAHOOT Game. This Game is given at the end of learning and topics given according to the topics in mathematics lessons. This study uses a quantitative deskriftive approach that aims to describe all responses given by the student through a given kuisoner. The subject that was used as a respondent was 22 grade X students in Mandiri Bersemi Cianjur. The results show that KAHOOT This Game is eager and enthusiastic student as a quiz in math learning. This looks at the most positive response from the poll results that researchers deploy. They answered the application KAHOOT in the readability aspects of quiz ease understanding and motivation of interest the learning and benefits of using KAHOOT media in the most positive. In addition the game is able to overthrow the skills of 4C (Communication Collaboration Critical Thinking and Problem Solving and Creativityand Innovation).

Keywords
KAHOOT!, media, motivation, math learning, 4C

Topic
Mathematics Education

Link: https://ifory.id/abstract/UudZh7ERTc8k

Corresponding Author
Yustika Syabandari

Institutions
(a). Division of Science Education, Kangwon National University
Chuncheon-si, Gangwon-do, 24341 Republic of Korea
(b). Division of Science Education, Chonbuk National University
567 Baekje-daero, Jeonju, Republic of Korea
(c). Division of Biology Education, Chungbuk National University
Cheongju, Chungbuk, 28644, Republic of Korea

*yustikasya[at]kangwon.ac.kr

Abstract
The concept of race has been reported as an essential concept of biological reality and human social construct. Race concept which has no scientific consensus, can be perceived differently by diverse society. This study was intended to explore science and humanities track students perception of race concept by performing semantic network analysis. A total of 412 students from science and humanities track have participated. The result illustrated that science and humanities students perception about race concept was typically categorized into typological concept of race, race as a social construct, and race as the mixed concept between biology and social. The discrepancy is that science students tend to have a biological view to describe the race as a biological reality. They believe that gene demarcates human classification which leads them to exhibit biological essentialism. This research suggested the educational stakeholder and teacher to consider this crucial issue in science teaching and learning in order to prevent students from the misunderstanding about race concept.

Keywords
humanities track, race concept, science track, social network analysis (SNA), students perception

Topic
Science Education

Link: https://ifory.id/abstract/8CLxfkhYjM2t

Corresponding Author
Judyanto Sirait

Institutions
University of Leicester

Abstract
Force diagrams, or some say free body diagrams (FBDs), as physics representations, are usually employed to teach and learn physics concepts such as force. Physics education studies indicate that the use of FBDs can support or hinder student- performance in solving physics problems. This study aims to investigate the type of representations drawn by students and the patterns of students- response while solving force problems. By involving physics education students (preservice teachers), questions about the application of Newton-s laws were administered to students to elicit the patterns of students- diagrams and students- answers. Results were analysed into three categories: complete, incomplete, and miscellaneous force diagrams. In addition, some students did not draw diagrams in solving the problems. Based on students- answers, the percentage of students drawing incomplete diagrams is higher than drawing complete diagrams. Students who drew complete diagrams tend to obtain correct final answer. Some students who drew incomplete diagrams were not able to find the correct answers and even to finish the problem. The group of students whose drew diagrams were in the miscellaneous category tended to demonstrate incorrect and unfinished answers.

Keywords
Representations, Force Diagrams, Problem Solving

Topic
Physics Education

Link: https://ifory.id/abstract/j8yHx6CtMBXq

Corresponding Author
yunina surtiana

Institutions
(a) Prodi S3 Pendidikan IPA, Universitas Pendidikan Indonesia, Jl. Dr. Setiabudi No. 229, Bandung 40154, Indonesia.
*yuninasurtiana[at]upi.edu
(b) Departemen Pendidikan Fisika, Universitas pendidikan Indonesia, Jl. Dr. Setiabudhi No. 229, Bandung 40154, Indonesia
(c) Prodi Pendidikan Ilmu Komputer, Universitas Pendidikan Indonesia, Jl. Dr. Setiabudi No. 229, Bandung 40154, Indonesia

Abstract
This preliminary study was conducted to get an overview of the effects of applying the CC-Lab model to conceptual changes of high school students related to the concept of floating, drifting and sinking. The CC-Lab consists of four main activity stages of Lab, namely: 1) the stage of identifying student preconceptions, 2) the stage of conception confronting Lab, 3) the stage of conceptual Lab, and 4) the Stage of identifying the final conception of the student. A pre experiment method with one group pretest-post test design was used in this research. There are 37 students consisting of 22 female students and 15 male students, in one of the high schools in the West Bandung district of West Java province. Lab activities are carried out cooperatively in small groups. The instrument used to collect data is a conception test in the four tier test format related to the concept of floating, drifting and sinking. The results showed that before the application of the CC-Lab, the number of students in each conception category were: scientific conception (10%), misconception (62%), and no conception (28%), while after the activity of CC-Lab, the number of students in each category of conception became: scientific conception (82%), misconception (12%), and no conception (6%). These results indicate that the implementation of the CC-Lab model has a high effectiveness in remediating the misconceptions that occur among high school students regarding the concept of floating, drifting and sinking.

Keywords
conceptual change laboratory (CC-Lab),Misconception

Topic
Physics Education

Link: https://ifory.id/abstract/xXeVUq7kvZCG

Corresponding Author
Safira Permata Dewi

Institutions
a) Pendidikan Biologi, FKIP Universitas Sriwijaya, Jl. Raya Palembang-Prabumulih Km. 32 Ogan Ilir, Indonesia
*saphire2687[at]gmail.com

b)Pendidikan Kimia, FKIP Universitas Sriwijaya, Jl. Raya Palembang-Prabumulih Km. 32 Ogan Ilir, Indonesia

Abstract
This study aims to get an overview of the implementation of lectures in General Biology in the Chemistry Education FKIP Unsri. The sample of this study was Chemistry Education students in the 2018/2019 academic year (n = 43). The instruments used were documentation studies to find out the achievements of students in general Biology courses and survey questionnaires to find out the concepts that were considered the most difficult, the causes of difficulties understanding the concepts, and the interest of students in the quiz held before learning. The data shows that the achievement of student learning results shows 57.45% of students are still in the "C" and "D" assessment categories. Meanwhile, the concept of human physiology (41.86%) and cells (structure, metabolism, and reproduction) (39.53%) is the most difficult concept for students to understand. The difficulty of understanding this concept is due to the large number of uses of terminology (72.1%) and the weakness of students initial knowledge from previous levels of education (51.2%). These findings indicate the importance of diagnostic tests before the lecture is done so that the lecturer knows more about the weaknesses and strengths possessed by students so that the lectures that take place become more directed.

Keywords
course profile, general biology, chemistry education, sriwijaya university

Topic
Biology Education

Link: https://ifory.id/abstract/czpFyEBCdYbJ

Corresponding Author
Dian Pertiwi Rasmi

Institutions
Faculty of Education and Teacher Training, University of Jambi, Jambi 36361, Indonesia

Abstract
Concept understanding is an individual process to master by receiving and understanding information obtained from learning process in behave, think and act. This study aims to determine the profile of concepts understanding that experienced by students about direct current. At the end, we can find out the extent of the influence of understanding concepts on students during learning process. The research design used in this study is research design mixed methods explanatory design . The design of this study is combination of qualitative and quantitative data. The stages of implementation in this study will be conducted at SMAN 11 Kota Jambi in class X with the concept which already taught is about direct current. The instrument of this research is conceptual questions in the form of multiple choice and interview transcripts. Moreover, the data analyzed qualitatively and quantitatively. The results showed that in trials using conceptual questions, the percentage of correct answers for number 1 and 7 indicators was 50% correct, then for the lowest question indicators there were questions number 2 and 3 with the percentage of correct answers which was 37.50%. The results of the field trials prove that there is still a low students concepts understanding regarding the concept of direct current

Keywords
Conceptual Understanding, Conceptual, Direct Current

Topic
Physics Education

Link: https://ifory.id/abstract/rvafqeuHjyd2

Corresponding Author
Nisa Permatasari

Institutions
Department of Mathematics Education, Universitas Pendidikan Indonesia.
Jl. Dr. Setiabudhi No. 229, Bandung 40154, Indonesia
*permatasarinisa[at]upi.edu

Abstract
Reasoning is one of the abilities needed in solving mathematical problems. Based on Lithner perspective, reasoning divided into imitative reasoning and creative reasoning. There are three indicators for each reasoning, that are plausibility, mathematical foundation, novelty for creative reasoning aspect and imitation for imitative reasoning aspect. The aim of this research is to analyze the qualitative effect of problem-based learning model toward students mathematical imitative and creative reasoning. In order to do so, we used descriptive qualitative methods by taking eighth-grade students (around thirteen to fourteen years old) in one of the Junior High School in Tasikmalaya. We used the data from a written test, observation and interviews. The results revealed that problem-based learning model suitable for students who have dominantly mathematical creative reasoning abilities. The characteristics of students who have dominantly mathematical imitative reasoning abilities prefer to be told rather than finding out. Based on the results, we conclude that each student has a different learning style according to his abilities.

Keywords
Imitative reasoning; Creative reasoning; Problem-based learning

Topic
Mathematics Education

Link: https://ifory.id/abstract/VKygLjFpqJxQ

Corresponding Author
RIFDAH RIFDAH

Institutions
a)Mathematics Education, School Of Postgraduated Studies, Universitas Pendidikan Indonesia
*rifdahkurniawan[at]upi.edu
b) Mathematics Education, Universitas Pendidikan Indonesia

Abstract
In general, the purpose of this research is to find out wether there is relationship between students- mathematical resilience and students- mathematical communication skills. This research conducted the private junior high school in Tangerang class VIII-I even semester in the academic year 2018-2019. The method of this research is a survey method with the correlation technique. The sampling used the purposive sampling technique, which is determination and sampling technique determined by researchers with certain considerations. The sample consisted of 20 students. The material used in this research was the volume and surface area of the cube. The research instrument is 4 problems with communication mathematical skills and 30 statements of resilience statement. The conclusion of this research is that there is a positive correlation between mathematical resilience to communication mathematical skills; which is equal to 0.448.

Keywords
Communication Mathematical Skills, Mathematical Resilience

Topic
Mathematics Education

Link: https://ifory.id/abstract/62KvVH8nLPga

Corresponding Author
Eyus Sudihartinih

Institutions
Department of Mathematics Education, Universitas Pendidikan Indonesia
Jalan Dr. Setiabudhi No. 229 Bandung, Jawa Barat, Indonesia 40154

Abstract
The purpose of this study was to obtain an overview of the relationship and influence of IQ, gender, and the value of analytical geometry examination results on the ability to think geometry. This research was designed with a correlational model based on 32 students randomly selected from a mathematics education department at one of the universities in Indonesia. The test instrument used was "Van Hiele Geometry Test" which was compiled on the CDASSG Project. The findings in the study were that there was a correlation between IQ, gender, and the value of analytic geometry test results with a level of geometric thinking but not significant. In addition there is an influence between IQ, gender, and geometry values on the level of geometric thinking but not significant.

Keywords
intelligence quotient, ability to think geometry, van Hieles level, correlational research, mathematics education

Topic
Mathematics Education

Link: https://ifory.id/abstract/2Y6mBa7rPJgQ

Corresponding Author
Ai Tusi Fatimah

Institutions
(1) Departemen Pendidikan Matematika, Universitas Pendidikan Indonesia, Jl. Dr. Setiabudi No. 229, Bandung 40154, Indonesia
(2) Departemen Pendidikan Matematika, Universitas Galuh, Jl. RE Martadinata No. 150, 46274 Ciamis, West Java, Indonesia

*tusi.fatimah[at]gmail.com

Abstract
This study aims to analyze the role of agricultural contextual knowledge on the mathematical understanding of vocational students. The study used a qualitative approach to vocational students in food crop and horticulture agribusiness competencies in Ciamis, Indonesia. Students solve the mathematical tasks in agricultural situations integrated with three-dimensional topics. The results obtained are: (1) students contextual knowledge of agriculture affects the understanding of the context or situation of the task; (2) some students who have agricultural contextual knowledge tend not to integrate the context of task problems and mathematical concepts; (3) students who have contextual knowledge, coherence and correspondence all information, connections with mathematical concepts tend to be able to complete tasks. These results indicate that contextual knowledge of agriculture can provide a role in mathematical understanding or not depend on the problem of the task and the ability of students in the coherence and correspondence of information, as well as mathematical connections.

Keywords
Mathematical understanding, contextual knowledge, agricultural

Topic
Mathematics Education

Link: https://ifory.id/abstract/GtMLADzpa83Z

Corresponding Author
Ummul Khaira

Institutions
a) Magister Pendidikan Matematika, Sekolah Pascasarjan, Universitas Pendidikan Indonesia, Jl. Dr. Setiabudhi No. 229, Bandung 40154, Indonesia
*khairaummul7[at]upi.edu
b) Departemen Pendidikan Matematika, Universitas Pendidikan Indonesia, Jl. Dr. Setiabudhi No. 229, Bandung 40154, Indonesia

Abstract
This study aims to find out how service, the role of the teacher in facilitating slow learners in mathematics learning, and other constraints faced. This research is a case study in a junior high school in the city of Bandung. Participants in this study were three class VIII students. This research was carried out through observation, interviews with slow learner students, and mathematics teachers. The results of the study show that children who are classified as slow learners still have not been well facilitated in achieving predetermined mathematics learning goals. Slow learners need a longer study time than their peers, so they need special education services. One of alternative solution that can be done by teachers is that teachers sholud pay special attention to the process of learning mathematics for slow learner students. The importance of teachers conducting clinical assessment, giving the direction to the slow learner students in the learning process, and helping the students to overcome the difficulties faced by slow learner students.

Keywords
clinical assessment, mathematics learning for slow learner

Topic
Mathematics Education

Link: https://ifory.id/abstract/dJaqtDPnZKyA

Corresponding Author
Riandi Riandi

Institutions
(a), (b), Universitas Pendidikan Indonesia
(c) SMP Darul Hikam

Abstract
TPACK is a unique description of an experienced teacher in integrating the components of teaching such as content, teaching methods and technology into learning units so that students can learning optimally. This study aims to determine whether STEM-based TPACK designed by teachers can foster student attitudes towards science and careers related to engineering jobs. Descriptive analysis of the study was carried out through Lesson Plan analysis that the teacher had designed, the implementation of the lesson plan and student attitudes towards science and engineering careers before and after teaching and learning of the human blood circulatory system. The research data was obtained through an instrument consisting of the Content Representation + Technology (CoRes + T) rubric adapted from Loughran et al. (2012), observation sheet and attitude scale. The study involved a science teacher and 14 students from the Junior Secondary School (SMP) in West Bandung Regency. The results showed that STEM-based TPACK in the lesson plan developed by teachers had demonstrated essential concepts for the topic of human blood circulatory systems (CK), as well as in the selection of models and teaching methods (PK) that were relevant to the concepts chosen and supported to foster the engineering ideas of students. The RPP has also described the technological aspects (TK) that are appropriate to CK and PK. Students attitudes towards science and engineering careers show positive progress from before and after teaching and learning.

Keywords
TPACK, STEM, Engineering careers

Topic
Science Education

Link: https://ifory.id/abstract/KmWt8u97QbXP

Corresponding Author
Cut Putri Maghfirah

Institutions
a) Magister Pendidikan Biologi, Sekolah Pascasarjana, Universitas Pendidikan Indonesia
Jl. Dr. Setiabudhi No. 229, Bandung 40154, Indonesia
*cutputrimaghfirah[at]upi.edu
b) Departemen Pendidikan Biologi, Universitas Pendidikan Indonesia
Jl. Dr. Setiabudhi No.229, Bandung 40154, Indonesia

Abstract
Abstract. Education plays important role to form attitude related to the health. When immune system does not work properly it allows microorganism to attack. In the reality most of high school students do lack of knowledge about infectious diseases. With regard to this issue, the current study was carried out to examine student knowledge about infectious diseases related to immune system. The samples of this study was eleventh grade students of SMAN 5 Banda Aceh. The method that used in this study is observation method. Data of student knowledge about infectious diseases was obtained from essay test, whereas the data of student motivation and ability to receive information were obtained from the test that provides yes or no question. The data were analysed by percentages correction and analysis. According to the data the result are all students have low knowledge about infectious diseases whereas the students have good motivation to learn biology and good ability to receive biology information. Based on this study the conclusion is the students in eleventh grade have low knowledge about infectious diseases that has no relation with student motivation and the ability to receive information.

Keywords
Infectious diseases knowledge; Student motivation; Receiving information ability

Topic
Biology Education

Link: https://ifory.id/abstract/j4d36PwAtMpT

Corresponding Author
Ajeng Siti Prasetya

Institutions
a) Departemen Pendidikan Matematika, Universitas Pendidikan Indonesia
Setiabudi No. 229, Bandung 40154, Indonesia
*ajengprasetya[at]gmail.com

Abstract
The purpose of this research was to describe students errors in geometry problems based on mathematical connection ability. This study was qualitative research with subject consisted of twenty five students. The results showed that (1) the students comprehension for recognize and used relationships between ideas in mathematics still lack, (2) The lack of students comprehension in maked connection mathematical ideas, (3) students have difficulty in formed new mathematical ideas so as to produced a comprehensive relationship, (4) students have not been fullied able to recognized and applied one mathematical content to other mathematical content and environments outside mathematics.

Keywords
Students Error; Geometry Problems; Mathematical Connection Ability

Topic
Mathematics Education

Link: https://ifory.id/abstract/mYCQc2fbFNKg

Corresponding Author
Ai Nurlaelasari Rusmana

Institutions
a) Division of Science Education, Kangwon National University
1 Gangwondaehak-gil, Chuncheon-si, Gangwon-do, 24341 Republic of Korea
b) Division of Biology Education, Chungbuk National University
Chungdae-ro 1, Seowon-Gu, Cheongju-si, Republic of Korea
c) Division of Science Education, Chonbuk National University
567 Baekje-daero, Jeonju-si, Republic of Korea
*junki[at]jbnu.ac.kr

Abstract
Even though species is the central concept in biology, the history of species and the existence of different species concept is rarely discussed in biology instruction. Whereas, the teacher can employ the plurality of species concept to enrich discussion in the classroom. Therefore, knowing the students- perception of species is essential to plan compatible teaching strategies for species. The open-ended question was administered to 548 Indonesian high school students. Initially, the semantic network analysis was performed to explore the ideas of species in students- response. To investigate the students- idea development, further analyses were conducted to observe the co-existence of normative and naïve ideas about species. Five species concepts were found which species as the lowest taxon in taxonomy (A1), species as the type of animal and plant (A2), species as the basic classification of living thing (A3), genetic species concept (A4), and morphological species concept (A5). Of five species concepts, we found naïve ideas were more robust among responses and some of them were co-existed with the normative ideas. Since the students learn the species mainly from biology instruction, it is suggested that pedagogical effort need to be well-taken in facilitating students to be more enlightened about the species.

Keywords
High school student; Ideas co-existence, Network analysis, Species concept, Species pluralism

Topic
Biology Education

Link: https://ifory.id/abstract/hcY7EtbqAJHa

Corresponding Author
Siska Mutia Hindayanti

Institutions
a) Departemen Pendidikan Fisika, Universitas Pendidikan Indonesia
Jalan Dr. Setiabudi No. 229, Bandung 40154, Indonesia
*mutiahindayantis[at]upi.edu
b) Departemen Pendidikan Ilmu Pengetahuan Alam, Universitas Pendidikan Indonesia
Jalan Dr. Setiabudi No. 229, Bandung 40154, Indonesia

Abstract
21st-century globalization era requires citizens to have 21st-century skills (4Cs; critical and creative thinking, collaboration, and communication) in supporting their job competencies. The government recommends learning process being emphasized by 21st-century skills (KA21) training. This study aims to get KA21 overview of high school students using 221 samples, randomly obtained from 288 students at one of the high schools in West Bandung district. The study focuses on observing behaviors trained by KA21 in physics learning through project-making. Observation results represent that critical thinking skill can be built at 67.88% and creative thinking skill reaches 66.48%. The involvement of teachers is still quite dominant in directing the steps to develop and complete projects. Collaborative skill reaches 76.21%, as well as communication skill that can be built at 79.06%. Teachers still have to dominantly ask students to read and present the project results. Thoughtful steps need to be developed in training KA21. Teachers have to ensure that students have sufficient knowledge. All students have to be actively involved in teamwork and know how to work in team. Generating creative ideas need to be exemplified by teachers. Virtual classes can be given to overcome unfinished learning at class because of insufficient time.

Keywords
21st century skills; physics material

Topic
Physics Education

Link: https://ifory.id/abstract/MJdnW6RqechN

Corresponding Author
Citra Oktasari

Institutions
a) Departemen Pendidikan Kimia, Universitas Pendidikan Indonesia, Jl. Dr. Setiabudi No. 229, Bandung 40154, Indonesia
*citraoktasari[at]upi.edu

Abstract
This study aims to determine the extent to which the use of chemistry teaching materials developed with 4S TMD with hydrocarbon material can be applied to class XI students. This research was conducted at Senior High Schools number 14 in Palembang with 4 science teachers and 38 students in class XI. Development of this teaching material uses the 4S TMD method which consists of 4 stages, namely selection, structurization, characterization, and didactic reduction. In the study carried out characterization tests and understanding tests by students as well as due diligence by the teacher. The first study used a characterization instrument and the second used an instrument of understanding. The characterization results show that there are several texts included in difficult texts, texts that are difficult to do the didactic reduction. After the didactic reduction, the second test was carried out using an instrument of understanding. And if the results of the comprehension test of students have been categorized well then the feasibility test of teaching materials is carried out by the teacher. The results of this study are the use of chemical teaching materials developed by 4S TMD on hydrocarbons that can be used by class XI students at Senior High School number 14 in Palembang to support chemistry education in schools.

Keywords
Chemistry Education; Hydrocarbon; 4S TMD Models; Teaching Material

Topic
Chemistry Education

Link: https://ifory.id/abstract/QmHgjp2XBMNY