Indonesia Conference Directory

Corresponding Author
Inta Budi Setia Nusa

Institutions
Universitas Komputer Indonesia

Abstract
This study aims to determine the role of information system audit in examination activities to assess the companys business processes to improve internal control in accounting information systems. In the implementation, there is still fraud occurring in the service and manufacturing industries due to the weak internal control. This research method uses descriptive methods to reveal problems or data conditions related to the implementation of information system audits for Quality of Internal control. The unit of analysis of this research is that there are 43 commercial banks in Indonesia in the Financial Services Authority (OJK). Verification analysis in this study using statistical test tools with variance Partial Least Square (PLS) based structural equation test. The result is that the implementation of an Information System Audit has a positive impact on Internal Control, meaning that the better implementation of an Information System Audit will also have an impact on the quality of Internal Control.

Keywords
information system audit, accounting information systems, internal control

Topic
Accounting

Link: https://ifory.id/abstract/3jQC4eJgZKNv

Corresponding Author
RUDI ASFAR RIFAI

Institutions
a. Universitas Komputer Indonesia
Jalan Dipatiukur 112-116,Bandung 40132, Indonesia
*rudiaa30[at]mahasiswa.unikom.ac.id

Abstract
This paper aims to see how much influence innovation has on the performance of micro, small and medium businesses in Bandung Regency. This research uses descriptive method with the aim of collecting detailed data so that it can describe how much influence innovation has on performance in detail. This research uses descriptive method so that the research instrument can be a questionnaire for Micro, Small and Medium Enterprises in Bandung Regency. Innovation has a significant influence on improving the performance of micro and small businesses. The conclusion of this study is that innovation has an influence on performance in micro, small and medium enterprises. So that it is expected that every micro, small and medium scale business will increase innovation both in products and in the production process.

Keywords
Micro, Small and Medium Enterprises; Performance; Innovation; Descriptive Method

Topic
Management

Link: https://ifory.id/abstract/WbgKhXqCFaE2

Corresponding Author
Angga Dwiputra Solihin

Institutions
Master of management, Universitas Komputer Indonesia Jalan Dipatiukur 112-116, Bandung 40132, Indonesia.

Abstract
This research was conducted to determine the relationship between managers competency towards innovation in small and medium enterprises. The method used in this study is descriptive with a quantitative assessment. The unit of analysis in this study is small and medium businesses in Bandung Regency using the simple random sampling method to get the number of respondents as many as 100 small and medium businesses. Analysis of the data used is the validity test and reliability test. The program to test data analysis is SPSS 23 and Lisrel 8.8. The results of this study are expected to have a positive impact between managers competency towards innovation in small and medium enterprises, in accordance with previous researchers.

Keywords
Small and medium enterprises; manager competency; innovation

Topic
Management

Link: https://ifory.id/abstract/3HMR9eNcXzTq

Corresponding Author
Angky Febriansyah

Institutions
Universitas Komputer Indonesia

Abstract
This study aims to find out and analyze the achievement of land and building tax targets in the city of Bandung during 2014-2018 and to find out and analyze how much the effectiveness and contribution of land and building tax revenues to the total revenue of the Bandung municipal government for five years. The research method used is a descriptive method. Data sources obtained in this study are secondary data sources in the form of reports on the realization of land and building tax and regional income for 2014-2018 in Bandung city. The analysis technique used is the analysis of effectiveness and contribution, namely by measuring the level of effectiveness and contribution of land and building tax to local revenue. From the results of research on the city government of Bandung shows that land and building has good effectiveness can be seen from the average percentage from 2014-2018 which is equal to 94% but has less contribution to the increase in local revenue which can be seen from the average percentage from 2014-2018 which is equal to 20%. It is recommended that the city government of Bandung can increase the potential of other regional taxes in order to increase local revenue.

Keywords
Effectiveness, Contribution,Land and Building Tax,Local Revenue

Topic
Accounting

Link: https://ifory.id/abstract/Qxwpj6mqLT2G

Corresponding Author
Arenawati Arenawati

Institutions
Public Administration Programm Study
Faculty of Social and Political Sciences
Sultan Ageng Tirtayasa University

Abstract
ABSTRACT Transformation is a process that can not be avoided when the condition of the organization gets worse in all aspects. PT. Kereta Api Indonesia prior to 2009 experienced worsening conditions in almost every aspect. Impaired employee performance, service performance associated with delayed arrivals and arriving trains, dirty station conditions, adventurous condition of coaches and loco, brokering systems and corporate assets. Therefore, restructuring steps are done by PT. KAI by doing organizational transformation. The most important process in transformation is to change the employees mind set or Reframing. The purpose of this study is to analyze how the reframing process is run by PT. KAI. This research is qualitative research with descriptive method. The primary data source of this research is the leadership of PT. KAI and train passengers. The theory used as a knife analysis in this study is the theory of Goulliart and Kelly (1994) where Reframing is one of the important parts in the transformation, consisting of 3 chromosomes, which get mobilization, create vision, and make measurement instruments. Reframing is done by changing the orientation of the company from orientation to production to service orientation. To mobilize subordinates to change their orientation, socialization, reward and punishment, more leadership style changes in leading by example. Creating a new vision is done by changing the vision and mission, organizational culture, work values and organizational logos. Meanwhile, to measure that the transformation has indicated a condition improvement, a measurement instrument was developed. Measurement instruments are designed to measure overall organizational performance and service performance. The results show that the reframing is well executed, although at the beginning there are many oppositions, but with a firm leadership and willing to go down the field little by little employees who oppose the transformation began to follow the path of transformation.

Keywords
mind set, transformation, behavior, service performance

Topic
Education and Social Change

Link: https://ifory.id/abstract/4kJQXNDe8uWT

Corresponding Author
Irwan Tarmawan

Institutions
Universitas Komputer Indonesia

Abstract
The film becomes one of the commodities to build brand awareness through product placement in the film that combines product messages with storytelling in narrative films that provide the message value naturally from scenes in the film. The relationship between product placement and storytelling in narrative films is an interesting part to study. Qualitative research through a naturalistic-interpretative paradigm approach with pragmatic content analysis methods to construct reality, uncover meaning through processes, events, and the authenticity of product entities in relation to storytelling and brand sharpening through film. The purpose of this research is to understand the concept of building brand awareness by placing products in the narration of film. The results showed that the product placement in the film was very important and had a strong impact on brand awareness by utilizing functional storytelling, links, and references in film narratives. The product used as the main property of each scene in a functional event will often appear and be visually apparent. Building brand awareness through product placement in films must pay attention to genre, storytelling and target audience films

Keywords
Brand Awareness, product placement, narrative film

Topic
Visual Communication Design and Interior Design

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

Corresponding Author
Asrinaldi Asril

Institutions
(1) Department of Political Science, Universitas Andalas, Padang, Indonesia, 25163
(2) Department of Mathematic Universitas Andalas, Padang, Indonesia, 25163
(3) Department of Public Administration, Universitas Andalas, Padang Indonesia, 25163

Abstract
After the simultaneous election, talks about the contestation of Joko Widodo (Jokowi) and Prabowo Subianto in West Sumatra are still ongoing. Moreover, Jokowi suffered a landslide defeat in the 2019 elections, raising questions. Why could Jokowi lose in West Sumatra? Isnt the development project carried out in West Sumatra an important part of Jokowis strategy to bring him closer to the Minangkabau ethnic group in the past two years? In fact, Jokowis defeat in the 2019 Election was actually greater than in the 2014 elections. If in the 2014 Election Jokowi won 23.18 percent, while in the 2019 election only reached 14.1 percent. Of course this defeat still leaves talk in the public of West Sumatra, even though the presidential election has been completed. One of the things discussed is the future of West Sumatra after Jokowis defeat in the context of central-regional relations. Despite losing heavily in West Sumatra, Jokowi won nationally and returned to being president. This article explains the issues discussed in the political discussion of urban Minangkabau ethnic groups after Jokowis defeat, especially in coffee shops that often become informal places of discussion. How does the public perceive the future of West Sumatra in the central-regional relations after this presidential election? How do they understand Jokowis severe defeat in the conversation at the coffee shop? What are their hopes for President Jokowi in managing the government, especially for the people of West Sumatra? In addition, this article also wants to analyze the patterns of political communication that occurred in coffee shops after the simultaneous elections in 2019. In the final section, this article will elaborate more deeply on the implications for the concept of political communication in urban communities in West Sumatra related to the election results in their regions.

Keywords
Political Communication, Ethnic, Minangkabau, Election and Democracy

Topic
Political Party and Election

Link: https://ifory.id/abstract/7H2LanhyuNYx

Corresponding Author
Neni Susilawati

Institutions
Universitas Indonesia

Abstract
As the most profitable industries in the world, tobacco industries is suspected, do not make a fair tax contribution. Cigarettes are a reliable source of tax revenue for governments worldwide, and tobacco is one of the world-s most regulated and most taxed industries. However, the mentioned claims relate to excise taxes rather than corporate income tax. In term of excise, the tobacco companies lobbying intensively against significant increases in duty rates. Whereas, the economic damage suffered by Indonesia caused by cigarette consumption was four times higher than the excise revenue. Since taxation is one of six tobacco control policies introduced by WHO, so this study aims to evaluate the effectivity of tax policy in Indonesia in reducing consumption of cigarettes to support the achievement of SDG. This study is conducted by a quantitative approach using statistical data analysis. As a result, tax policy in Indonesia has low effectiveness in reducing cigarette consumption, so that it can endanger the efforts to achieve the SDGs. There must be a reconstruction of tax policy, related to all types of taxes so that taxes can be a political instrument to overcome the negative externalities of cigarette consumption and overcome the problem of high economic costs. This study is critical because the issue of human and economic damage due to cigarette consumption does not only occur in Indonesia but also in lower income countries.

Keywords
policy reconstruction, income tax, tobacco, cigarette industry, economic damage, economic cost, excise, sustainable development goals.

Topic
Sustainable Development Goals

Link: https://ifory.id/abstract/W6PNzmLp4w79

Corresponding Author
Sarah Nuraini Siregar

Institutions
Centre of Political Studies
Indonesian Institute of Sciences

Abstract
In 1998, Indonesia began to enter the democratic system. The consequence of democratic system in security field is how to create a professional military and police. In police aspects, it is called Democratic Policing. But to realize it is not easy because the ways of police still dominant with element of violence. This was inseparable from the values and military approaches in Polri during the New Order period. This difficulty occurs when Indonesia faced terrorism cases after the New Order; from Bali Bombings in 2002 until 2018. The trend of terrorism attacks had up and down; starting from suicide bombings until open physical attacks towards public and the police. Various cases of terrorism that occurred in Indonesia and other countries reopened the review of national security. This review consider the relationship between security and national interests where national interests are a matter of state safety. Based on this assumption, the concept of national security develops with two aspects: military approach and state policy. The relevance of this assumption could be seen on May 25, 2018, when DPR officially ratified The Law No.15 /2003 concerning the Criminal Act of Terrorism. This law raises two problems. First, the involvement of the TNI in handling terrorism; second, the freedom of authority granted to Polri. This authority can potentially apply a militaristic approach in handling terrorism cases. These problems made some doubts from human rights activists about Polri-s commitment for abandon militaristic ways as part of efforts to create democratic policing. This paper will examine how the role of Polri in handling terrorism cases during in Joko Widodos government. The review will analyze the role and functions of Polris institution related to the commitment in creating democratic policing on post New Order.

Keywords
police, policy, security, democracy, terroris

Topic
Conflict and Reconciliation

Link: https://ifory.id/abstract/JbApGPyn7BN2

Corresponding Author
Tri Isti Hartini

Institutions
1Science Education Department, Graduates School, Universitas Pendidikan Indonesia, Jl. Dr. Setiabudhi No. 229, Bandung 40154, Indonesia
2Physics Education Study Program, Faculty of Teacher Training and Education, Universitas Muhammadiyah Prof. Dr. Hamka, Jl. Tanah Merdeka, Kp. Rambutan, Ciracas, Jakarta Timur, Indonesia

Abstract
Abstract: This study aims to determine the mastery of the concept of three-dimensional rigid body motion (GBT3D) in learning analytical mechanics in physics education students. The subjects of this study were the third semester students totaling 21 people in one LPTK. The instrument of data collection in this study was a test of learning outcomes mastery of the concept of rigid objects in three dimensions (GBT3D) based on multiple representations (MR) in accordance with indicators of understanding concepts using Revised Blooms Taxonomy and knowing the effect of critical thinking skills using the California Critical Thinking Test ( CCTT) and Critical Thinking Disposition Inventory (CTDI) to evaluate students critical thinking. The results of this study obtained a mean value of 37.38 pretest and posttest average value of 57.43 with an N-Gain percentage of 31.80% for mastering the GBT3D concept showed an increase. The results of multiple representation (MR) analysis on GBT3D material MFIs were 35.71% verbal, 28.38% images, 25.71% graphs and 32.95% mathematics showed sufficient percentages. The results of the Critical Thinking Skills (CBC) analysis on (GBT3D) fall into the less category.

Keywords
Keywords: Mastery of concepts, GBT3D mechanics, multiple representations, critical thinking skills

Topic
Physics Education

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

Corresponding Author
ema sukaesih

Institutions
a) Science Education Study Program, Indonesian Education University, Jl. Dr. Setiabudi No. 229, Bandung 40154, Indonesia
*emasukaesih[at]upi.edu
b) Science Education Study Program, Indonesian Education University, Jl. Dr. Setiabudi No. 229, Bandung 40154, Indonesia

Abstract
The purpose of this study was to produce a reasoned multiple choice test instrument that was used to measure students critical thinking skills. This research is a development research by adapting the 4-D model according to Thiagarajan which consists of the define, design, develop, and disseminate stages which aim to produce the product. The product developed in this study is a critical thinking ability test instrument on rain theme science subjects. Based on the results of the study, obtained a reasonable, valid and reliable reasoned multiple choice test instrument used to measure students critical thinking skills. The products produced from this study are form of reasoned multiple choice questions accompanied by answer keys and scoring guidelines.

Keywords
reasoned multiple choice test; 4-D model;critical thinking skills

Topic
Science Education

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

Corresponding Author
Labitta Hareka Putri

Institutions
Science Education Study Program, SPs Universitas Pendidikan Indonesia Bandung
Jalan DR. Setiabudi No 229, Bandung, Indonesia
*bitta.hp[at]gmail.com

Abstract
Scientific reasoning and argumentative abilities are one of the purposes of science educations. The way to involve students in reasoning and arguing activities is to provide a science learning activities that integrates the practice of inquiry using scientific methods in Socio-Scientific Issue (SSI). To create this environment, one of the learning models that can be used is the Levels of Inqury (LOI) model. The LOI model is expected to give students- opportunity to collect and analyze scientific data to obtain evidence that supports their claims regarding SSI. The stages of LOI used in this study are discovery learning, interactive demonstration, and inquiry lesson. The purpose of this study was to know the changes in scientific reasoning and argumentative abilities of junior high school students after the implementation of the LOI model based on SSI in the science learning at global warming material. The method used is the weak experiment with the one group pretest-posttest design. The instrument used is a scientific reasoning test and scientific argumentation test. This study resulted in a gain of 33% for changes in students reasoning abilities and 39% for changes in students argumentative abilities.

Keywords
Scientific reasoning; Scientific argumentative; Levels of Inquiry; Socio-scientific Issue

Topic
Science Education

Link: https://ifory.id/abstract/yt8pev3Dmjzu

Corresponding Author
Diana Susanti

Institutions
a. Department of Biology Education, STKIP PGRI West Sumatera, Jl. Gunung Pangilun, Padang 25173, Indonesia

Abstract
Learning Media subject push the students to produce the media that used in learning proccess. But no one the student used the learning material. It made the student not creative to make the design or create the media. To solve this problem, it need to develop the learning material based on projeci based learning, because in Media learning subject the sutents must design or create the media that used in learning. Modul help the students learn indenpendently and make the student learn how to design and create the good media that used in learning proces . The purpose of this research is to produce modul based on project based learning in Leaning media that valid. Models and procedure of development was developed with four-D model, this research was develop phase. Stands of develop phase to validated at STKIP PGRI West Sumatera from lecturer. Data obtained to determinine modul derived from validation sheet. Average validity of modul was 97,35%. The result of the observation showed that modul very valid. Based on the results, this research can be concluded that the Develop of modul based projeci based learning in learning media subject is very valid.

Keywords
Project Based Learning, Modul, Validity

Topic
Biology Education

Link: https://ifory.id/abstract/beKpufyMJL96

Corresponding Author
Ade Nugroho Dewantoro

Institutions
Mechanical Engineering Education, Universitas Sebelas Maret
Jalan A. Yani No. 200, Surakarta 57169, Indonesia
*adendewantoro[at]student.uns.ac.id

Abstract
The call for providing practical learning opportunities to students is prominent in engineering education. To address this requirement, an experiential learning approach was applied in a turbine engineering course emphasizing on practice-based learning. It is expected that after completing this course, the students will capable to undertake design calculation of specified turbine for assessing and predicting its performance. The Finite Element Method (FEM), a numeric procedure for analysing a wide variety of engineering problems was incorporated within the Kolb-s experiential learning cycle to give visualization of physical behaviour of a turbine. The ADDIE method consists of a series of activities (analysis, design, develop, and evaluation) was employed in this study to develop a lesson plan of turbine engineering. This research is to supposed to establish a new learning options for turbine engineering courses which increases student understanding of basic turbine engineering concept as well as provides opportunities for students to have experience in designing a wind turbine with FEM.

Keywords
Turbine engineering, Engineering education, Experiential Learning, FEM, KolbCycle

Topic
STEM Education

Link: https://ifory.id/abstract/9pDK2zyu3GEj

Corresponding Author
Amaliyyah Mahmudah

Institutions
1Program Studi Magister Pendidikan Kimia, Sekolah Pasca Sarjana, Universitas Pendidikan Indonesia, Jl. Dr. Setiabudi No. 229, Bandung 40154, Indonesia

*amaliyyahm[at]upi.edu

2,3 Departemen Pendidikan Kimia, Universitas Pendidikan Indonesia, Jl. Dr. Setiabudi No. 229, Bandung 40154, Indonesia

Abstract
The purpose of this study to identify misconceptions by measuring the level of students understanding in chemical bonding topic using four-tier multiple choice diagnostic test. The research method is descriptive and the stages are carried out as follows; validity judgement test with CVI value of 0,98, proceeding with a preliminary test on 30 islamic senior high school students in South Tangerang with cronbach alpha reliability (α = 0,663) for answers, (α = 0,610) for reasons, (α = 0,693) for confidence level of answer, and (α = 0,652) for confidence level of reason. This study is conducted at tenth grade senior high school in South Tangerang among 77 students. The results of data analysis shows that the overall percentage of students misconception on chemical bonding topic is 15,14% (low category). The level of confidence in this study is highly significant because it can provide information about conceptual understanding of the students. Students encounter the most misconceptions when determining bonds in microscopic. As evidence, misconceptions in the concept of determining microscopic ionic and covalent bonds results to 41,56% (medium category), and metal bonds with 37,66% (medium category). This misconception is due to the students having limited conceptual knowledge and low visual-spatial abilities.

Keywords
Misconceptions, Four tier diagnostic test and Chemical bonding.

Topic
Chemistry Education

Link: https://ifory.id/abstract/rXUqxa2zRpuC

Corresponding Author
Retno Dwi Putri

Institutions
Departemen Pendidikan Matematika, Sekolah Pasca Sarjana, Universitas Pendidikan Indonesia, Jl. Dr. Setiabudi No. 229, Bandung 40154, Indonesia
*retnoputri[at]upi.edu

Abstract
This study is aimed to develop student worksheet based on education for sustainable development on function derivative material for the eleventh of senior high school. This reseach is a design research using the Plomp model comprising preliminary, prototyping, and assessment research. The product of this study is a set of student worksheet based on Education for sustainable development on function derivative material. The student worksheet was validated by expert lecturer and teacher. After validation by expert, the students worksheet are given to students to find out students responses. The result of validation and try out indicate that the worksheet was very valid and got a good response.

Keywords
Student worksheet; Education for Sustainable Development; Function Derivative material

Topic
Mathematics Education

Link: https://ifory.id/abstract/9Cp3awRGhVbU

Corresponding Author
Ade Irma

Institutions
a) UIN Sultan Syarif Kasim Riau, Jl. HR. Soebrantas Panam Km. 15 No. 155 Panam, Pekanbaru 20293, Indonesia
*ade.irma[at]uin-suska.ac.id
a) Universitas Pendidikan Indonesia, Jl. Dr. Setiabudi No. 229, Bandung 40154, Indonesia
*ade.irma[at]upi.edu
b) Universitas Pendidikan Indonesia, Jl. Dr. Setiabudi No. 229, Bandung 40154, Indonesia
c) Universitas Pendidikan Indonesia, Jl. Dr. Setiabudi No. 229, Bandung 40154, Indonesia
d) STKIP Singkawang, Jl. STKIP Kelurahan Naram Singkawang, Kalimantan Barat 79251

Abstract
This research is motivated by the low mathematical communication skills of students and the implementation of Think-Pair-Share models in schools. This study aims to investigate whether there is a difference in mathematical communication skills between students who take Think-Pair-Share learning and students who take conventional learning. This research is a quasi-experimental study. Data analysis techniques used by researchers were descriptive statistics and the Mann Whitney U test. The instrument used was a descriptive test to measure students mathematical communication skills. Based on the results of the study concluded that (1) there are differences in mathematical communication skills between students using the Think-Pair-Share cooperative learning model with students using conventional learning models, (2) the communication skills of the experimental class students are better than the control class. Thus in general Think-Pair-Share learning model influences students mathematical communication skills.

Keywords
Think-Pair-Share, Mathematical Communication Skills

Topic
Mathematics Education

Link: https://ifory.id/abstract/2TztA9feGkRw

Corresponding Author
Yasinta Sindy Pramesti

Institutions
a) Program Studi Teknik Mesin, Universitas Nusantara PGRI Kediri
Jalan K.H. Ahmad Dahlan Nomor 76, Kediri 64112, Indonesia
*yasintasindy[at]gmail.com

Abstract
Work-energy is one of fundamental concept of physics. There is a subtle distinction among sources, forms and modes of transfer of work-energy process. Moreover, there are different meaning of work-energy in science and daily life which leads to misconception. This paper reported students- undestanding and the method has been used to teach work-energy concepts. This study was implemented mixed method embedded experimental design. Subject consisted of 57 students of mechanical engineering who took Physics for Engineering course, enrolling in 2018/2019 academic year. Data were analyzed quantitatively are score of student-s conceptual understanding by paired sample t-test. Data were analyzed qualitatively are students- understanding by constant comparative method, and interviews. Students- conceptual understanding score was improved from mean-s score 44,40 to 72,54 (p < 0,01) and effect size was improved with high category (3,79), upper-medium N-gain (0,51). There was students- difficulties in understanding work-energy such as interpreted work-energy concept in the context of science and used work-energy bar chart. Besides that, teachers found difficulties about the role of language in the teaching of energy.

Keywords
work; energy; students understanding

Topic
Physics Education

Link: https://ifory.id/abstract/F48WXR7Pqkh9

Corresponding Author
Nurul Wakiah

Institutions
Food Science and Technology Study Program
Department of Agriculture Engineering
Faculty of Agriculture
Hasanuddin University

Abstract
Snakehead fish bone is one of the fishery wastes that is potentially used as the raw material for calcium supplement products. In order to make the calcium products easily absorbed and utilized rapidly by human body, supplement products need to be made in nano form. The aims of this study were to determine the effect of the sonication time in the production of Snakehead fish bone nano calcium on the physical profile of the resulted nano calcium, and to obtain the best sonication time. The development of nanocalcium utilized sonication method with 405 Powersonic Ultrasonic Cleaner. The result showed that the best particle size distribution was found on 45 minutes sonication treatment which was 842.3 nm with the highest particle size ranging from 461,6 to 487,5 nm. The average value of the polydispersity index is 1.527. The yield of nano calcium produced from whole fish is 1.331%. The resulting nano calcium has an average white degree of 86.622% and average density of 0.73 g / ml.that nanocalcium had the best particle size distribution at 45 minutes sonication of 842.3 nm with the highest number of particles was around 461,6-487,5 nm with index polydispersity average of 1,527. The yield of nanocalcium from whole fish was 1.331%. The resulted nanocalcium has an average white level of 86.622% and an average density of 0.73 g / ml.

Keywords
Nano calcium, Sonication, Snakehead fishbone

Topic
Postharvest and food engineering

Link: https://ifory.id/abstract/N4EkLwfhRMJK

Corresponding Author
Rudi Haryadi

Institutions
Universitas Sultan Ageng Tirtayasa

Abstract
The purpose of this study was to determine the results of the application of media PhET Simulation in physics learning as a teaching aid in order to improve students science process skills. The research design used in this study was to use the experimental method. One learning method that can be used to complement students science process skills is the experimental method. The results of affective and psychomotor assessment of students showed very good results. Among them are: the classic affective average score for group 1 is 84.80; group 2 is 88.30. While the classic psychomotor score for group 1 is 83.70; group 2 is 87.40.

Keywords
Learning physics, media PhET Simulations, science process skills.

Topic
Physics Education

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

Corresponding Author
Zetriuslita Zetriuslita

Institutions
Universitas Islam Riau

Abstract
The purposive of this research was to describe and analyze correlation of student-s response in applying Problem based learning and cognitive conflict strategy (PBLCCS) to improve critical thinking (CT) and curiosity attitude (CA). This research design was quantitative and qualitative research. The population was consisted of undergraduate students of Mathematics Education Study Program FKIP Universitas Islam Riau. The instruments used in this research were observation, quationaire and interview sheets. The findings showed that :(1) response of students in increasing critical thinking (CT) and curiosity attitude (CA) in teaching and learning process through problem based learning model and cognitive conflict strategy based on academic level was positive and very good category and they helped student to solve problems given and there were correlation among them based on academic level. (2) There were correlation between of students- response in applying Problem based learning and cognitive conflict strategy (PBLCCS) to improve critical thinking (CT) and curiosity attitude (CA) based on academic level. They were known through observations, questionaire and interviews results.

Keywords
problem-based-learning. cognitive conflict strategy, critical thinking skills , curiosity attitude, academic level

Topic
Mathematics Education

Link: https://ifory.id/abstract/Mu943bNfBenG

Corresponding Author
Abhisatya Amrih Raharja

Institutions
Departemen Pendidikan Kimia, Universitas Pendidikan Indonesia, Jl. Dr. Setia Budhi No. 229, Bandung 40154, Indonesia

Abstract
This paper is aimed to describe the environmental attitude for high school students on the topic of buffer solution. The environmental attitude is one of the attitudes in the 18 values of the Indonesia National Character Education which is still very less applied in schools even though it is urgently needed for the environment sustainability. Buffer solution is one of the topic in chemistry that rarely linked with the environment even though actually it has a very large influence in the environment. Therefore, this paper is to describe how the environmental attitude that students have on the topic of buffer solution. The participants of this study were 68 students. In this paper qualitative methods were used by giving questionnaires to students. From the results obtained, most of the students still lacked a good environmental attitude on the topic of buffer solution, even though the students actually wanted to explore ways to maintain the environment.

Keywords
Environmental attitude; Buffer solution

Topic
Chemistry Education

Link: https://ifory.id/abstract/NbdvHh46QerT

Corresponding Author
Annisa Nur Hasanah

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

Abstract
This research was descriptive qualitative research. This study aims to analyze the errors of students in the problems of surface area and volume on the prism and pyramid then to expose causal factors. The subject of this research was 29 students 9th of SMP Negeri 40 Bandung, that was chosen by purposive sampling technique. Data was collected from students through validated essay tests and interviews. The data was analyzed by descriptive method. The results show that some of students (1) did not understand the problems, (2) cannot represent the prism and pyramid in other form, (3) did some error in using formula of surface area and volume of prism and pyramid, (4) did some error in calculations and (5) did misconceptions. The causal factors were students did not accustomed to identify and write what known and asked when solve a mathematical problem, difficulty in reading information, did not understand concept of the prism and pyramid, carelessness in calculation, haste in answering questions, and lack of effort.

Keywords
Error Analysis; Prism and Pyramid Problems; Misconceptions

Topic
Mathematics Education

Link: https://ifory.id/abstract/QD9AKzPGRe4h

Corresponding Author
Ovi Syafiatul Maulana

Institutions
a) Program Magister Pendidikan Biologi, Universitas Pendidikan Biologi
*ovisyafiatulmaula[at]gmail.com
b) Fakultas Pendidikan Matematika dan Ilmu Pengetahuan Alam, Universitas Pendidikan Indonesia, Jl. Dr. Setiabudhi No. 229 Bandung, 40154, West Java, Indonesia

Abstract
This study aimed to analyze the ecoliteracy of high school students at Darul Hikam Bandung dormitory based on gender through the value education of Taqwa Character Building (TCB) toward environment. This research is motivated by the low awareness and concern of students about the surrounding environment. Taqwa Character Building (TCB) is designed as value education to form a character of taqwa integrated into student activities. Data analyzed used quantitative approach with descriptive research methods. This study were conducted at 20 males and 20 females who lived in the Dormitory. Data were collected using questionnaire, interviews and documentation. A questionnaire of ecoliteracy was given to examine environmental knowledge and environmental behavior. Males obtained a higher average score than females, which is 3.46 with a medium category, while the females is 3.38 with the medium category. This analysis revealed very few gender-based differences ecoliteracy. The majority of males and females delegates have good knowledge of various aspects related to ecoliteracy as a manifestation of the integration of education in TCB values in daily activities of students.

Keywords
ecoliteracy; Darul Hikam dormitory; gender; TCB

Topic
Biology Education

Link: https://ifory.id/abstract/YGZ84gxEDL3q

Corresponding Author
Yugi Hilmi

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

Abstract
This study aims to describe the level of mathematical creative thinking ability of tenth graders in vector material. The method of this research is descriptive qualitative. The subject of the study involved 34 tenth grade senior high school students in the Tasikmalaya area. Data collection techniques used a written test of four items in the form of descriptions. The data analysis technique is done by giving a score in accordance with the scoring guidelines used and categorizing the criteria for the level of ability of students mathematical creative thinking. The result showed that the majority students mathematical creative thinking ability are at a fairly creative level. Thus, students need to be given learning that can develop their mathematical creative thinking abilities.

Keywords
Creative Thinking Abilities; Vector Material

Topic
Mathematics Education

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

Corresponding Author
Sugama Maskar

Institutions
Universitas Teknokrat Indonesia

Abstract
The aim of this paper is to analyze the national examination scores of mathematics data for senior high school level in Indonesia from 2015 until 2018. Data analysis techniques used in this paper are explorative method with descriptive statistics and inferential statistics to find an overview of students mathematical abilities in Indonesia. The data were obtained from Pusat Penilaian Pendidikan (Puspendik) Kementerian Pendidikan dan Kebudayaan Republik Indonesia. The result shows that the scores of mathematics national examination for language, sains, and social department decreases every year. The results of the two average tests with t test, shows that the decrease in each year is significant, except for 2015 to 2016 on language department. The result also shows that the biggest average for language, sains, and social respectively are 41.60, 54. 41, and 51.76, all from 2015. The conclusion is that the mathematics ability of high school students in Indonesia is still low. The application of the high order thinking skills (HOTS) problem is also one of the factors that affected the decrease in 2018.

Keywords
National Examination, Mathematics

Topic
Mathematics Education

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

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
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
Raiyani Indah Kasih

Institutions
Departemen Matematika, Universitas Indonesia, Kampus Depok, Jawa Barat 16424, Indonesia

Abstract
Abstract. HOTS is the important concept in Indonesian curriculum 2013 reform. Combinatoric is one of the mathematic-s branch that can give an experience to the students to increase their HOTS. One of research topic in combinatorics is the rainbow connection number of a graph. Let G=(V,E) be a nontrivial connected graph on which is defined a coloring c:E(G)→{1,2,3,… ,k},k ∈ N, where adjacent edges may be assigned the same color. A path u-v in G is a rainbow path if all edges in the path have different colors. In this case, the coloring c is called a k-rainbow coloring of G where k is the number of color used. The minimum k for which G being rainbow-connected is called the rainbow connection number rc(G) of G. If for every pair u,v ϵ G, G contains a rainbow u-v geodesic, then G is called strongly rainbow-connected. The minimum k for which G being strongly rainbow-connected is called the strong rainbow connection number src(G) of G. In this paper we determine the exact value of rc(G) and src(G) for grid-3D graph.

Keywords
HOTS, Rainbow connection number, Strong rainbow connection number, Grid 3D graph

Topic
Mathematics Education

Link: https://ifory.id/abstract/XpWZhHAU2nLC

Corresponding Author
Namirah Fatmanissa

Institutions
Mathematics Education Study Program, Faculty of Education, Sampoerna University.
LAvenue Building, Jl. Raya Pasar Minggu No.Kav. 16, RT.7/RW.9, Pancoran, South Jakarta, DKI Jakarta. 12780

Abstract
Students- ability in solving mathematics word problems has been considered low, especially caused by obstacles in understanding information provided by the problem. Schema can be a helpful tool for students to face such obstacles. The aim of this research is to analyze the effectiveness of schema in resolving obstacles based on linguistic aspects constructing word problem (multiple representation systems, vocabulary, and grammar and syntax). A mixed method study of embedded experimental model was conducted with 69 participants of 11th grade students. Quantitative analysis to determine the effectiveness of schema was done by testing whether postest score of experiment students was significantly higher and whether mathematical linguistic obstacles of them was significantly lower than control students. Mathematical linguistic obstacles in each aspect were analyzed from the indicator-based coding of students- work on word problem test. Qualitative analysis was conducted by comparing experiment and control students- work on posttest, and by comparing experiment students- work on pretest and posttest. Experiment students showed significantly higher posttest score and lower mathematical linguistic obstacles in each aspect compared to control ones. In general, schema is proven to be effective in helping students solve word problems. Schema is also effective in resolving mathematical linguistic obstacles in each aspect. Qualitatively, students being taught schema showed more attention and application upon the whole information provided by the problem and were more self-directing in determining solving steps towards problem goal.

Keywords
mathematics, schema, mathematical linguistic obstacles, word problem.

Topic
Mathematics Education

Link: https://ifory.id/abstract/cgGeDQmruCp7