Indonesia Conference Directory

Corresponding Author
Sri Hastuti Noer

Institutions
Faculty of Teacher Training and Education University of Lampung

Abstract
The efforts to improve students reflective thinking and self learning can be done through a learning process by providing contextual problems that generate curiosity, recognize what is known and what is needed from the problem, and provide opportunities for students to work, and draw conclusions from problem. One learning model that can facilitate these activities is guided discovery learning. This study aims to: 1) Design and develop guided discovery learning models to improve reflective thinking abillity and student self learning, 2) Analize the effectiveness of models and learning tools that are developed towards improving reflective thinking abillity and student self learning. The population subjects in this study were all eighth grade students of the State Junior High School in Bandar Lampung City. Each one of the sample schools was randomly selected from the high-rank and middle-rank schools. In each school the sample was taken randomly in two classes. One class as an experimental class, applied guided discovery learning, one class as a control class, which is applied to conventional learning. The instrument used is a test of reflective thinking ability and student self learning scale, interview guidelines, observation sheets and questionnaires. Based on the study it was concluded that: 1) The guided discovery model that was developed has met valid and practical criteria, 2) The guided discovery model that was developed effectively to improve students reflective thinking abillity and studets self learning both in high- rank scholl and middle- rank school.

Keywords
Guided discovery, reflektif thinking, self learning

Topic
Mathematics Education

Link: https://ifory.id/abstract/NeYUV6RMX72J

Corresponding Author
Anis Mashdurohatun Mashdurohatun

Institutions
UNISSULA

Abstract
Intellectual property rights are a set of legal rights to express ideas into real forms of property. These rights are generally copyright, patent rights, and brand rights. IPR is still a wealth that is not yet commonly understood in terms of the distribution of property gono-gini in divorce cases in Indonesia. In some divorce cases, there are important things regarding intellectual property that must be really taken into account in the distribution of property without this. This study aims to examine and analyze and formulate the transfer of IPR as a joint asset in marriage and the distribution of gonogini assets after divorce. The approach method used in this research is juridical empirical. The data used are primary and secondary data. Techniques for collecting data through library studies and field studies. Analysis of descriptive analytic data. The results of the study found that the transfer of IPR as a joint asset in marriage was based on the provisions of IPR legislation. The object of the joint property needs to be harmonized with respect to the HKI field both copyright, brand and patent. Such as the brand lumpia express, suharti fried chicken, etc. The distribution of the gonogini property after the divorce certainly remains based on the provisions of the marriage law, namely Law Number 1 of 1974 concerning Marriage. In the provisions of Article 35 paragraph (1), it has been stated that the property acquired during marriage is a joint asset, provided that there is no marriage agreement regarding the separation of property. Everything that has economic value can be categorized as property, whether it is immovable property (land), moving objects (gold), also in legal developments such as electricity (intangible objects) are categorized as something that has economic value. Wealth in the IPR field is included in the category of assets because it is an intangible object that has economic value.

Keywords
IPR; Gono Gini; Post;Divorce

Topic
Private Law

Link: https://ifory.id/abstract/kPLFgf6hvdKt

Corresponding Author
ayu aristika

Institutions
1Departemen Pendidikan Matematika, Universitas Pendidikan Indonesia, Jl. Dr. Setiabudi No. 229, Bandung 40154, Indonesia
2Departemen Pendidikan Matematika, Universitas Pendidikan Indonesia, Jl. Dr. Setiabudi No. 229, Bandung 40154, Indonesia

Abstract
Abstract. Mathematical material and mathematical thinking abilities are two things that are constantly evolving, that is, between mathematical material understood through mathematical thinking skills possessed by students need to be further developed through learning mathematical and mathematical material that continues to grow more widely. Therefore, in mathematics learning it is necessary to develop AMT students abilities. This meta-analysis uses the results of experimental studies regarding the effect of learning strategies on students AMT abilities. Of the ten research reports, 18 research findings were obtained which were then the subject of this study. This meta-analysis aims to determine the overall effect of learning strategies on students AMT abilities, as well as the effect of the three aspects found in these experiments, namely the level of education, tools/learning media, and the types of strategies used. The results of the analysis show that learning strategies are effective in improving the ability of AMT students, with the effect of the greatest influence based on the type of learning strategy that is cooperative. Other findings indicate that the learning strategy at the senior secondary level is more effective. Whereas based on learning aids/media it can be seen that student worksheets are more influential.

Keywords
meta-Analysis, Strategies, Advaned Mathematical thinking

Topic
Mathematics Education

Link: https://ifory.id/abstract/KFRdu3VbcPxT

Corresponding Author
Nurjannah S

Institutions
Faculty of Law University of Muhammadiyah Mataram

Abstract
This article analyzes the concepts and phenomena of the banking dualism system (dual banking system) in the Syariah banking system. For almost three decades, syariah banking in Indonesia has experienced a dynamic that has implications for the incompleteness of the concept and implementation of the muamalat pillars in it. Not just changing forms and colors, but there is a fading mind in Syariah banking. Although on the other hand the Sharia Supervisory Board is present as an autonomous sharia supervisory institution from the Indonesian Ulema Council to ensure the implementation of muamalat rules, but the dualism of the banking system makes a denial and violation of the rules of the mualamat itself. This research is very important to criticize the concept and implementation of dual banking systems in syariah banking which have an impact on divergence and failure to achieve peoples welfare and property management that is not in accordance with the objectives of Sharia (al-Maqasid al-Sharia). Critical legal study is a method which is used to analyze concepts and implementation and provide solutions to the problems of syariah banking institutions, full separation (mono banking system) and release of the syariah banking institutional structure from the structure of Bank Indonesia and the World Bank. That construction provides divergency space for the implement of syariah banking system with pure Sharia, with a system that is guided by other sharia-pure state banks such as ar-Rajhi bank, the Islamic Development Bank standard.

Keywords
dual banking system, purification of muamalat rules, institutional system

Topic
Islamic Law

Link: https://ifory.id/abstract/xn7tLgZUuF4N

Corresponding Author
Amaira Utami

Institutions
1) Science Education Program on Graduate School of Education, FPMIPA Universitas Pendidikan Indonesia, Jl. Dr. Setiabudi No. 229, Bandung, 40154, Indonesia
2) International Program on Science Education, FPMIPA Universitas Pendidikan Indonesia, Jl. Dr. Setiabudi No. 229, Bandung, 40154, Indonesia
3) Department of Physics Education, FPMIPA Universitas Pendidikan Indonesia, Jl. Dr. Setiabudi No. 229, Bandung, 40154, Indonesia
a) Corresponding author: amairautami[at]upi.edu
b) rochintaniawati[at]gmail.com
c) irma.rs[at]upi.edu

Abstract
The scenario of 21st century relies heavily on the computer and digital system. Many scholars argued that it is important to implement and evolve the integration of science, technology, engineering and mathematics (STEM) in school system which will give direct advantages for students, teachers and educational institutions. Therefore, this study is aimed to examine the enhancement of student-s STEM literacy on knowledge aspect after implementing STEM based module in learning earth-s structure and its dynamics topic. The method of this study is weak experiment pretest posttest one group only. The subject of this research is one class of 7th grade students that consist of 39 students in one junior high school in Bandung, Indonesia. Developed STEM based module on earth-s structure and its dynamics topic is delivered to students in their learning activity. Moreover, to measure students- knowledge enhancement of STEM literacy, a pre-test and a post-test were given to students which consist of 20 multiple choice questions. Specifically, there are 11 questions of science literacy, four questions of technology-engineering literacy and five questions of mathematics literacy. Student-s pre-test and post-test result is analysed by calculating normalized gain and its effect size. The results of this research showed that students- science literacy enhanced satisfactory (n-gain = 0,35) with 1,10 of effect size (strong effect), technology-engineering literacy shows the highest enhancement of (n-gain = 0,56) means that it also enhanced satisfactory with effect size score is 1,24 (strong effect), and mathematics literacy is the lowest enhancement of (n-gain = 0,32) and is categorized as satisfactory enhancement with effect size of 1,13 (strong effect). To sum up, student-s STEM literacy enhanced satisfactory with strong effect size after the implementation of STEM based module in their learning activity.

Keywords
STEM Education, STEM based Module

Topic
STEM Education

Link: https://ifory.id/abstract/PzTdgGJ84MKv

Corresponding Author
Asri Agustiwi

Institutions
(a) Faculty of Law Sebelas Maret University, 57126, Surakarta, Indonesia
(b) Student of Law Science Doctoral Program Sebelas Maret University, 57126, Surakarta, Indonesia, and Lecturer at Faculty of Law Surakarta University: 57771, Karanganyar, Indonesia,
*tiwiasri26[at]gmail.com

Abstract
This research discussed to know the inhibitory factors of the local regulation cancellation system (Perda) in Indonesia. Local regulation test which led to the cancellation or otherwise occurred or whether a regional regulation which is tested through the Supreme Court (Judicial Reviewer), still has a problem quite complex, because the previous cancellation local regulation many Conducted by the Ministry of Interior of the Republic of Indonesia (Eksecutif Reviewer) more than in the Supreme Court. To be a new problem for the testing system in the Supreme Court because the existing testing system still lacks in its testing in particular test local regulation at this time, considering the issuance of Constitutional Court decree No. 56/PTU/MK. In the authority of the cancellation of local regulations (Perda) in Indonesia is returned to the Supreme Court. Thus the obstacles that occur such as legislation that in Indonesia need to be related to the test system of formyl and materiyl, the obstacles that occur also associated with the problem of regional development, investment and local regulation supervision.

Keywords
Cancellation System, Local Regulation

Topic
Constitutional Law

Link: https://ifory.id/abstract/P4LVbZy2tpxd

Corresponding Author
Usman Usman

Institutions
1 Lecturer in Master Chemistry Education Study Program FKIP Mulawarman University Samarinda
2 Lecturer in Chemistry Department at FMIPA Islamic University Makassar
email: sainusman[at]ymail.com

Abstract
Abstract The purpose of this study was to isolate secondary metabolites compound, determine toxicity and antimicrobial activity from several extracts and isolate of compound from the bark of M. umbellate. The process of extraction, isolation, and purification of secondary metabolites compound from the stem bark of M. umbellate was carried out by maceration, chromatographic techniques, and crystallization and recrystallization. Toxicity test with BSLT method using Artemia salina, while antibacterial and antifungal tests with agar diffusion method (Kirby-Bauer diffusion). Based on the analysis of spectroscopic data; FTIR, UV-Vis, NMR (1D and 2D NMR), the compound isolates were identified as acid 3β-acetyl-olean-12-en-28-oat. Then the results of the toxicity test showed 3β-acetyl-olean-12-en-28-oat acid compounds, methanol extract, hexane, chloroform, and ethyl acetate extract, were toxic to A. salina, but methanol extract had the highest toxicity to A. salina with LC50 169.863 ppm. Ethyl acetate extract and 3β-acetyl-olean-12-en-28-oat compounds, at a concentration of 1000 ppm, were able to inhibit the growth of Staphylococcus aureus with a inhibition zone >14 mm. Methanol extract also has a inhibitory effect on the growth of Candida albicans fungi with a diameter inhibition zona10, 48 mm. Whereas chloroform and hexane extracts showed a weak inhibition of bacteria and test fungi with a inhibition zone < 10.00 mm.

Keywords
Tritepenoid Compounds, Melochia umbellate, Bioactivity

Topic
Chemistry Education

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

Corresponding Author
Prisca Oktaviani Samosir

Institutions
Universitas Agung Podomoro

Abstract
Trademark is intangible goods. In the trademark, inherent value is an intangible asset for the owner because the trademark gives ownership rights as the legal subject, namely individuals (natural persoon) or legal entities (recht persoon), so that trademarks become intangible assets. Because the trademark has value, it is appropriate for trademark owners to get legal protection. Legal protection for trademark in Indonesia is only given to trademark owners who register their trademarks for the first time, in the principle, first to file. Indonesia does not use the principle of first to use, where the first trademark user has protection against the trademark. Whereas in other countries such as Saudi Arabia, the United States, Singapore, Australia, etc. apply the principle of first to use. The application of these two principles has a difference to the implications for legal protection provided specifically on company-owned trademarks. This paper will discuss the differences in the implications of legal protection for company trademarks in Indonesia by comparing the principles of first to use and the principle of first to file. This paper used normative method with an economic analysis of law approach. So, it is expected that this paper can contribute ideas to fill the legal vacuum regarding the authority of trademark registrants by companies that have not been regulated in Law No. 20 of 2016 concerning Trademarks and Geographical Indications.

Keywords
First to File, First to Use, Indonesia, Trademark

Topic
Private Law

Link: https://ifory.id/abstract/v8VAcHfmE7DU

Corresponding Author
Omay Sumarna

Institutions
Departement of Chemistry Education FPMIPA UPI Bandung

Abstract
This study aims to improve the quality of learning through the development of teaching materials for SETS-oriented chemistry teacher candidates (Science, Environment, Technology, Society) with the 4S TMD method (Four Steps Teaching Material Development). The developed SETS includes the presentation of material related to environmental, technological and social aspects. The material for teaching material chosen is redox. The 4S TMD method consists of four stages, namely the selection, structuring, characterization, and didactic reduction stages. The selection stage obtained the basic competencies developed in teaching materials. The structuring stage generates a concept map, macro structure, and multiple representations of redox and electrochemical reactions which will be compiled into the first teaching material draft. From the characterization through testing in class X high school students will acquire difficult and easy text categories. The difficult texts will be reduced to didactic. The design stages are analyzing and planning the types of teaching materials developed, the development stage, namely the stage of developing SETS-oriented redox reaction teaching materials with the 4S TMD method, and the evaluation stage, namely the testing phase of the feasibility and understanding of teaching materials.

Keywords
Redox, Electrochemistry, SETS, 4STMD

Topic
Chemistry Education

Link: https://ifory.id/abstract/t6yVGxCDWHwq

Corresponding Author
Rahayu Khasanah

Institutions
a) Department of Mechanical and Industrial Engineering, Gadjah Mada University, Indonesia
*rahayu.khasanah[at]akprind.ac.id
b) Department of Mechanical and Industrial Engineering, Gadjah Mada University, Indonesia

Abstract
Process industry such as the petrochemical industry is a kind of industry where the production performance depends on production equipment and assets. Thus, maintenance becomes very important way to achieve sustainable production in the process industry. The effectiveness, efficiency, reliability and maintenance of the equipment are vital for the uninterrupted, continuous and efficient operation. Types of preventive maintenance activity applied in the process industry generally are Routine Preventive Maintenance (when the plant is on), Turnaround Maintenance (Shutdown Preventive maintenance), and Inspection. Turnaround maintenance (TAM) plays the most important role of preventive maintenance activities because it is an essential activity of maintenance in the process industry to improve the availability and reliability of the assets includes plant facilities, equipment and machinery. This study evaluates the effect of Turnaround Maintenance applied in the assets to the performance of the plant in the case study company. The significant variables used to analyze the effect of TAM to the availability and reliability of the assets are Plant Availability and Downtime Loss. The statistical method is used to analyze the correlation of TAM occurrence with each variable. The result shows that the correlation value between TAM occurrences with the increasing of availability is 0,315. The correlation value between TAM occurrences with the increasing of downtime loss is -0,818. It can be concluded that TAM activities of the assets have significant effect to increase the availability of the plant, and to decrease the downtime loss. It proves that in the real process industry practice, TAM do improves the availability and reliability of the assets.

Keywords
Turnaround Maintenance; Availability; Reliability; Downtime Loss; Process Industry

Topic
Industrial Engineering

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

Corresponding Author
Yuli Rahmawati

Institutions
a) Universitas Negeri Jakarta
*yrahmawati[at]unj.ac.id
b) Edith Cowan University
c) Murdoch University
d) Curtin University

Abstract
The research aimed to engage students in reflecting their values through the integration dilemma teaching pedagogy in chemistry classroom. Dilemmas stories have been engaged students in values awareness through critical and dilemma thinking in the issues of plastic waste. The research was conducted in four secondary schools in Indonesia with 459 students, with depth case study in one classroom in year 12. The mixed method study as a methodology provided different perspectives to understand the participants. The Constructivist Values Learning Environment Survey (CVLES), semi-structured interviews, and classroom observations were applied as methods of data collection. The CVLES obtained perceptions of student engagement with the story, the teacher-s supportive role, critical thinking skill development, and students- learning to listen actively and think about the chemistry learning. The results show that the students and the researcher engaged in critical reflection on their values, collaboration with others, on their roles in participating in environmental education, social issues, and in deep chemistry learning. In addition to the dilemmas stories play important roles in developing character education which is relevant to new Indonesia curricula.

Keywords
Dilemma teaching pedagogy, dilemma story, chemistry learning, CVLES

Topic
Chemistry Education

Link: https://ifory.id/abstract/TaN9xEUb7umX

Corresponding Author
Wahyudhi Sutrisno

Institutions
Department of Industrial Engineering, Islamic University of Indonesia, Yogyakarta

Abstract
The importance of increasing skills and expertise of human resources has affected the increasing of the demand for training provider services. This opportunity causes competition among many training providers. In order to strengthen each provider, it must employ an innovative business model such as canvas business model method. PT. X is one of training providers in Yogyakarta who needs to improve its business model so it can be more competitive among others for the long-term business. This study aims to identify and evaluate the current business model, and design an appropriate a business model based on canvas business model method. The study showed that PT. X needs to develop its business models by adding a renewable value proposition; expanding its consumers through cooperation with hotels and freelancers; creating a consumer community of PT. X; and gaining new additional revenue.

Keywords
canvas business model, value proposition, human resources, provider training

Topic
Industrial Engineering

Link: https://ifory.id/abstract/d4wMxALYZeau

Corresponding Author
DWI SUSANTI

Institutions
(a,b) Program Studi Pendidikan Fisika, FMIPA, Universitas Negeri Jakarta, Jl. Rawamangun Muka No.10, Jakarta 13220, Indonesia
(c) Laboratorium Media Pembelajaran Fisika, FMIPA Universitas Negeri Jakarta, Jl. Rawamangun Muka No.10, Jakarta 13220, Indonesia
*upik.rahma.fitri[at]gmail.com
(d) Magister Pengajaran Fisika, Departemen Fisika. FMIPA Institut Teknologi Bandung, Jl. Ganesha no.10, Bandung 40132, Indonesia

Abstract
This study aims to examine the external factors of a laboratory as the core of the learning process. Two questions arise and become the focus of the study as follows: (1) How is the management of physics learning media laboratory of Physics Education Study Program in Universitas Negeri Jakarta and (2) How vast is the contribution of laboratory management to the learning process of physics education courses. In this study, a descriptive quantitative and qualitative instructional design is utilized. The laboratory standard referred to the Indonesian Education minister-s regulation, Likert scale to see the management of the laboratory, and descriptive analysis to see the contribution of laboratory management with integrated courses of physics education courses. The research findings show that the physics learning media laboratory has met the government standard with a value of 4.16 (very good) for it-s management. As for the contribution, the laboratory has contributed approximately 50% of physics education courses which are integrated with the laboratory. These research outcomes hopefully can be used by teachers and laboratories to enhance its management and contribution to university courses and other education facilities.

Keywords
Laboratory management, Physics Laboratory contribution

Topic
Physics Education

Link: https://ifory.id/abstract/XrV3mtFDEMLP

Corresponding Author
Fitria Nurdianti

Institutions
1Program Studi Pendidikan IPA, Sekolah Pascasarjana Universitas Pendidikan Indonesia, Jl. Dr. Setiabudi No. 229, Bandung 40154, Indonesia
2Departemen Pendidikan Kimia, Universitas Pendidikan Indonesia, Jl. Dr.Setiabudi No. 229, Bandung 40154, Indonesia
3Departemen Pendidikan Fisika, Universitas Pendidikan Indonesia, Jl. Dr.Setiabudi No. 229, Bandung 40154, Indonesia

Abstract
The purpose of this study was to analysis of mastery of concepts and students argumentative abilities improved with argument-based science inquiry (ABSI) models. The method used was Descriptive Research. The instruments of data collection used in this study were observation, teachers structured questions, interview. This study was conducted in junior high schools plus An Naba Sukabumi with 25 seven-grade students. Based on the results of the analysis of teacher answers from structured questions, information was obtained that students argumentation skills were still low and one of the ways to improve student argumentation was experiment. One learning model that can be applied to improve students argumentation and mastery skills is argument-based science inquiry (ABSI). The application of ABSI in enhancing the argumentation skills is in the research stage.

Keywords
Argument- Based Science Inquiry (ABSI), Capability of Scientific Argumentation, Descriptive Research, Science Education

Topic
Science Education

Link: https://ifory.id/abstract/nebLdAjhH694

Corresponding Author
Wulandari Putri

Institutions
Universitas Pendidikan Indonesia

Abstract
This study was aimed at investigating the development of gross and fine motor skill of preschoolers in urban and rural areas. The study was conducted under exploratory study. The participants of the study were 85 preschool students (44 from rural area; 41 from urban area) aged 4-5 years. To collect data, Age and Stages Questionnaire (ASQ) 3rd edition was used to measure the children fine and gross motor skill developments. To analyze the data, descriptive statistics analysis was conducted. The result of the students gross motor skill analysis showed that 76.47% children were in the above the cut off area category, 12.94% were in the close to the cut off area category, and 10.59% were in the below the cut off area category. Meanwhile, the result of the fine motor skill analysis showed that 90.59% children were in the above the cut off area category, 3.53% were in the close to the cut off area category, and 5.89% were in the below the cut off area category. The result concludes that most of the preschoolers fine and gross motor skills developments are on schedule. However, we should not neglect that some of the preschoolers need monitoring and more activities, while some others need further professional assessment.

Keywords
fine motor skills, gross motor skills, motor development, preschoolers development

Topic
STEM Education

Link: https://ifory.id/abstract/NEXMgxtA96JK

Corresponding Author
Afridha Laily Alindra

Institutions
1Proram Studi Pendidikan IPA, Sekolah Pascasarjana Universitas Pendidikan Indonesia, Jl. Dr. Setiabudi No. 229, Bandung 40154, Indonesia

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

lailyalindra[at]gmail.com

Abstract
Argumentation plays an important role in the development of science which is not just finding and presenting facts, but building arguments and considering them, and debating various explanations about phenomena. The research aimed to capture the consistency of argument by students on socioscientific issues of cloning. Students have chosen purposively with the subject of 170 high school students from three high schools in Bandung City, West Java, Indonesia. This research uses a case study approach with a descriptive analysis to analyze student test results of argumentation. The consistency of argument consists of claims and reasons itself. The result shows the pattern of agreeing and disagree about cloning in 3 topics; 1) human, 2) animal for Qurban purposes, 3) extinct animals. The higher consistency showed disagree in topics 1&2 about 56,47% and consistency of reason for each topic are 1)religion 40%, 2) religion 57,6% and 3) science 83,5%. Then, the consistency of agreeing for all topics is 2,35% and disagree is 14,71%. This provides that, consistency in argumentation between topics of cloning is based on the context of phenomena, which is greatly influenced by science, religion, and social norms. It needs to be implemented to improved students argumentation in schools.

Keywords
Consistency, Argument, Socioscientific, Cloning

Topic
Biology Education

Link: https://ifory.id/abstract/DTmtphzV6Wey

Corresponding Author
Niken Yuni Astiti

Institutions
a) Departemen Pendidikan IPA, Sekolah Pascasarjana, Universitas Pendidikan Indonesia, Jl. Dr. Setiabudhi No. 229, Bandung 40154, Indonesia

*nikenyuniastiti[at]upi.edu

Abstract
This study aims to determine the level of readability of integrated science teaching material has the theme of waste oriented to environmental literacy developed by 4S TMD (Four Steps Teaching Material Development) method. Environmental-oriented integrated science teaching material are oriented to the components of environmental literacy according to Middle School Environmental Literacy Survey (MSELS), such as environmental knowledge, cognitive skills, affective/attitude, and behaviour towards environment. This research was conducted in one of 7th grade consisting of 30 pupils in one of junior high school in Bandung Barat. The instruments are trial test questions readability which consists of writing the main idea of paragraphs, easy questions/difficult paragraphs, and multiple choice questions related to the materials in the paragraph presented. The result of these trial become a basis to do didactic reduction towards difficult concepts for student to understand. Didactic reduction is one of steps in the 4S TMD method, namely the stage of reducing the difficulty level of teaching material. Based on the result of readability test to the teaching material after didactic reduced, the average readability of all chapters in teaching material is 74,7% as the highest category.

Keywords
Readability, environmental literacy, teaching material environmental literacy oriented

Topic
Science Education

Link: https://ifory.id/abstract/WNkXdTQR9fBt

Corresponding Author
Ratu Mauladaniyati

Institutions
Pascasarjana UPI

Abstract
This study aims to determine whether there are differences in understanding of mathematical concepts between students who get learning with Flipped-Mastery models and students who get conventional learning. This study was a quasi-experimental study with a nonequivalent pretestt posttest control group design. With a population of all class students of SMA N 1 Pandeglang, and the sample was students of MIPA X-4 class as an experimental class and MIPA X-5 class as a control class. The instrument used is a concept understanding test instrument consisting of 8 essay questions. Data analysis using the t-test with a pre-requisite test for normality and homogeneity. The results of the study showed that understanding the mathematical concepts of students who had learned Flipped-Mastery models was better than students who obtained conventional learning.

Keywords
understanding of mathematical concepts, Flipped-Mastery models

Topic
Mathematics Education

Link: https://ifory.id/abstract/DJQLruavbHz6

Corresponding Author
Irfan Syamsuddin Syamsuddin

Institutions
Politeknik Negeri Ujung Pandang, Makassar

Abstract
One of the issues in teaching information security in particular cryptography is lack of tools to facilitate students understanding of related topics. The study specifically discusses the development of a web based learning tool for teaching symmetric cryptography in Indonesian language. The module is called NgeXTEA which contains a guide to the process of encryption and decryption in stages using Extended Tiny Encryption Algorithm (XTEA). The development of NgeXTEA including its features is presented. Based on several evaluations with various combinations of characters, it is finally concluded that NgeXTEA module works well as expected.

Keywords
Extended Tiny Encryption Algorithm (XTEA); Symmetric Cryptography; Information Security; Learning Tool

Topic
STEM Education

Link: https://ifory.id/abstract/6KGp8CBjf3vV

Corresponding Author
Bagus Eko Nugroho

Institutions
Universitas Sebelas Maret

Abstract
Mathematics has an important role in development in all aspects of life. Through mathematical modeling, students can be trained to think critically and creatively in solving problems related to everyday life. The habit of critical thinking using intuition can help determine the initial steps and bring up creative ideas in solving the problems they face. This study aims to describe the characteristics of the intuitive reasoning model of students of rational personality types in solving HOTS problems in mathematics. The subjects in this study were grade VIII students of DAHA 1 PAWYATAN SMP Kediri who had been selected based on rational personality types through Kierseys personality test. The intuition data used by the subjects in this study were collected using task-based interviews. The results of this study are that the subjects did not rewrite the important things in the question when answering, such as what is known and what was asked by arguing that this is usually true. In general the subjects in this study used an implicit intuitive reasoning model and diagrammatic model to solve the HOTS problem given.

Keywords
intuition characteristic; hots; rational personality type

Topic
Mathematics Education

Link: https://ifory.id/abstract/r7cbDveaXyPG

Corresponding Author
Mulyati Rasyid

Institutions
Program Studi Pendidikan Biologi. STKIP PGRI Sumatera Barat, Jl. Gunung Pangilun, Padang 25137. Indonesia

Abstract
This study aims to determine the effectiveness of Altas media based on constructivist approach towards improving student learning outcomes in Plant Anatomy. This study used a pretest and posttest pre-experimental design. Data were analyzed descriptively and statistically, namely analyzing observations of the ability of lecturers to manage learning, student activities during learning using atlas media based on constructivist approach abilities before and after using atlas media. The results showed that the atlas media was effectively used in learning with the ability of lecturers to manage 80.5 learning included in the excellent category and during collage activities 80.3 students studied included in the very active category. These results indicate that learning using atlas media is more effective in improving learning outcomes in plant anatomy.

Keywords
Atlas Media, Activities, Plant Anatomy

Topic
Biology Education

Link: https://ifory.id/abstract/zTCcY2wdj7ap

Corresponding Author
Siti Julaeha

Institutions
(a) Biology Education, School of Post-graduated Studies (SPs), Universitas Pendidikan Indonesia, Jl. Dr. Setia Budhi No. 229, Bandung 40154, Indonesia.
*sitijulaeha2912[at]upi.edu
(b) Department of Biology Education, Universitas Pendidikan Indonesia, Jl. Dr. Setiabudhi No. 229, Bandung 40154, Indonesia.

Abstract
Pre-experimental studies on the development of three tier multiple choice tests were conducted to detect and measure of students tree thinking in learning concept of classification. Three tier multiple choice test was developed with web integration of a Google Classroom application for easy feedback. The study with the one group pretest-posttest design involved a number of high school students (n = 29) who had studied the concept of Animal Classification. The research procedure was carried out through stages (literature study, problem analysis, and instrument design). The instrument was, then, validated by expert and analysed with ANATES version 4.0. Tree thinking was measured on the basis of identification of evolutionary characters, phylogenetic relationships, concept of clad, MRCA (Most Recent Common Ancestor), sister groups, tree topologies, number of evolutionary changes, and sequence of evolution in species. The validation results showed that the three tier multiple choice test can be used to measure of students tree thinking. In addition, the results analysis of items with ANATES version 4.0 indicated that the test has high reliability (r = 0.69), very good of differences (D> 0.4) on 12 items, and very good of difficult on 14 items. In conclusion, this study showed that three tier tests for measuring high school student-s tree thinking consist of 20 test items with double MC (4 options each for answer and reason), with 11 test items were received directly (60%), 3 items were received but with repairment (15%), 4 items were rejected (25%).

Keywords
Animal Classification; Google Classroom; Tree Thinking; Web-based Three Tier Multiple Choice Test;

Topic
Biology Education

Link: https://ifory.id/abstract/xGwZ9CmtHyjb

Corresponding Author
Magfirah Perkasa

Institutions
(a) Sekolah Tinggi Keguruan dan Ilmu Pendidikan (STKIP) Bima, Jl. Tandean Kel. Mande, Kota Bima, NTB. 84119, Indonesia
*magfirahperkasa[at]gmail.com
(b) Universitas Pendidikan Muhammadiyah Sorong, Jl. KH. Ahmad Dahlan No.1 Distrik Aimas, Kab. Sorong, Papua Barat. 98444, Indonesia

Abstract
This study aims to describe teachers perception on the implementation of sustainable development-based learning in chemistry, physics and biology subjects. This research is a qualitative descriptive research. The subjects of the research are the chemistry, physics and biology teachers in nine provinces. The data was collected by using interview sheets, questionnaire and observation sheets. According to the analysis data, the result shows that the term sustainable development is still considered foreign by 77,7% of the teachers, the implementation of sustainable development-based learning can be carried out in very good category by 55.5% of the teachers and in good category by 44,44% of the teachers, and 33.3% of teachers have difficulties in implementing sustainable development-based learning. Other results also show that the concept of sustainable development allows it to be applied in all three subjects with the characteristics of the material relating to the environment.

Keywords
perception; teachers perception; sustainable development-based learning

Topic
Science Education

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

Corresponding Author
Muhammad Zaki

Institutions
Universitas Samudra

Abstract
The aims of this study to describe the steps using figure tool Block Slide Factoring (Blockers) through scientific approach in 2013 Curriculum. The data extracted in this study are related to the steps of using Block Slide Factoring (Blockers) through scientific approach in Curriculum 2013 . Source of data extracted by observation teacher activity related to the use of props that are integrated in the learning scientific approach in 2013 Curriculum. Based on the results of observations, the researchers describe and disclose the steps for using Block Slide Factoring (Blockers) with scientific approach in 2013 Curriculum. Based on the analysis of the data showed thatBlock Slide Factoring (Blockers) can be operate correctly and properly reach to the stage of a mathematical formula or reach to the stage props are not used anymore, then just describe and only use techniques.

Keywords
Mathematics Teaching Tool , Scientific approach

Topic
Mathematics Education

Link: https://ifory.id/abstract/gHfu9yGnpQqa

Corresponding Author
Endra Putra Raharja

Institutions
a) Program Studi Magister Pendidikan Fisika, Universitas Ahmad Dahlan
Jl. Pramuka No.42, Pandeyan, Yogyakarta, Daerah Istimewa Yogyakarta 55161, Indonesia
*endra1300007025[at]webmail.uad.ac.id

Abstract
The growth of smartphone users in Indonesia can be a good potential for various fields, one of which is education. This research aims to produce a circular motion experiment tool using sensor smartphone in the horizontal and vertical position and find out its feasibility for use by high school students. The method of research used is research and development or R&D with the ADDIE development model (Analysis, Design, Development, Implementation, and Evaluation). The research result shows that the experimental tool has shown the influence of object distance directly proportional to centripetal acceleration when the angular velocity is constant. In addition, there is also a difference in tangential acceleration at the top of the circle and under the circle in a vertical position. In the questionnaire test, the average score of the feasibility of the experimental tool was 91.25% with a very good category. While the average score of module feasibility is 86.25% with a very good category. The average score obtained based on the response from students is 94.5% with a very good category.

Keywords
Experiment Tool; Circular Motion; Sensor Smartphone

Topic
Physics Education

Link: https://ifory.id/abstract/E2ndyWGBCrNF

Corresponding Author
Nanang Diana

Institutions
(a) Departemen Pendidikan Matematika Sekolah Pasca Sarjana, Universitas Pendidikan Indonesia, Jl. Dr. Setiabudi No. 229, Bandung 40154, Indonesia
*nanangdiana_mathematics[at]upi.edu/diana.nanang[at]yahoo.com

Abstract
The study aims to describe students creative thinking skills in circle material based on students- learning obstacle and trajectory. This research applied descriptive qualitative. The instruments used were circular questions and interviews. Data analysis carried out along with the data taken by analyzing students creative thinking skills based on students- learning obstacle and trajectory. The research subjects were VI semester students who were able to handle analytical geometry. The results of the study shown that, most students experience learning obstacle (1). Students have difficulties in finding concepts from the meaning of circles, (2). Students have difficulties working on material circle questions and without re-examining the answers (3). Students found out difficulties in a concept from the general formula of the equation of the circle (4). Learning materials presented in textbooks do not build students creative thinking skills, so they do not support meaningful learning. Learning trajectory based on analysis of learning obstacle experienced by students and analysis of causes of difficulties can occur. Preparation of hypothetical learning trajectory through learning situations designed is expected to create students creative thinking, indeed, the student reconstruction process is created an independent students form concept of the formula set.

Keywords
Creative Thinking, Circles, Learning Obstacle and Learning Trajectory.

Topic
Mathematics Education

Link: https://ifory.id/abstract/QpqJgh6rGETZ

Corresponding Author
YULIA UTAMI PUTRI

Institutions
a) Faculty of Math and Science, Padang State University
Jl. Prof. Dr. Hamka, Air Tawar, West Sumatera 25171, Indonesia
Email: yuliautamiputri18[at]gmail.com
b) Faculty of Math and Science, Padang State University
Jl. Prof. Dr. Hamka, Air Tawar, West Sumatera 25171, Indonesia

Abstract
The purpose of this study was to describe the effectiveness of the use of mathematical learning devices based on the contextual teaching and learning approach in terms of students mathematical communication skills. The subjects of this study are seventh grade students of SMPN 26 Padang with a total of 30 students. This research includes the type of development research. The development model used in this study is the Plomp model. The Plomp model consists of three phases namely preliminary research, development or prototyping stage and assessment phase. Data on the effectiveness of learning devices are taken from the results of tests of students mathematical communication skills. From the test results, it is found that the average test scores of mathematical communication skills of class VII students are effective. The percentage of the results of the mathematical communication skills test reaches 80% of the minimum completeness criteria. Based on the results of these studies indicate that the learning device developed has been able to meet the effectiveness criteria, namely the percentage of completeness in classical more than 75%.

Keywords
learning tools, contextual teaching and learning, mathematical communication skills.

Topic
Mathematics Education

Link: https://ifory.id/abstract/zPvg89Y7UuHV

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
Irwan Setyowidodo

Institutions
Universitas Negeri Surabaya

Abstract
Problem solving and collaborative skills are part of the 21st century skills that students need to have, so it is necessary to develop a model of learning that can enhance those abilities. This study aims to improve collaborative skills and student problem solving through learning Project Based Peer Interaction (SPBPI) Science. The research subjects were students who took the Basic Physics II academic year 2018/2019 at the Universitas Nusantara PGRI Kediri in the Mechanical Engineering Program. The study design used one-group pretest-posttest. Data collection uses observations, tests, and questionnaires. The data analysis technique uses quantitative and qualitative descriptive inferential statistical test analysis. The results of the study show the existence of collaborative abilities and problem solving of students through learning Project Project Peer Interaction (SPBPI).

Keywords
collaborative skills, problem solving, Peer Interaction

Topic
Physics Education

Link: https://ifory.id/abstract/tnBZpQF27bM4

Corresponding Author
TATA -

Institutions
(a) Postgraduate School Indonesia University of Education
Jl. Dr. Setiabudi No.299 Bandung 40154, Indonesia
*tatadoank344[at]gmail.com
(b) Departemen Chemistry Education, Indonesia University of Education
Jl. Dr. Setiabudi No.299 Bandung 40154, Indonesia

Abstract
This research is motivated by the idea of the importance of developing practical learning methods. The purpose of this study was to design practicum learning science, technology, engineering, mathematic (STEM)-based on learning to identify synthetic dyes in food. to achieve this, the questions raised in this study are " what are the characteristics of developing STEM based practicum methods for identifying synthetic dyes in food?". As for the research method used is research and development (R&D) consists of the planning phase, which is done is analyzing curriculum, books, and STEM-based practical learning. at the development stage a validation test was carried out by experts related to learning devices that will be used in this study. and at the implementation stage a trial is conducted to determine the development of student literacy. and collected by validation sheet, questionnaire, and observation of teacher and student activities. The results showed that the design of practicum feasible and can be used by high school students class X

Keywords
Practicum Design, STEM, Science Literacy, Dye Synthesis

Topic
STEM Education

Link: https://ifory.id/abstract/aLH7p2djmbuB