Indonesia Conference Directory

Corresponding Author
Didik Notosudjono

Institutions
Pakuan University
Brawijaya University
Pakuan University
Tridinanti University
Pakuan University
Pakuan University

Abstract
Bantargebang landfill located in Bekasi is the place where Jakarta dumps its waste, the production of waste that comes in the Bantargebang waste processing power plant (or TPST in indonesian) in average reached 6000-7000 tons/day. If the waste in the waste processing plant are not processed, it could cause undesired environmental pollution. So, with the construction of Waste Power Plant (or PLTSa in indonesian) in Bantargebang waste processing plant could lowers the pollution caused by the dumped wastes. Bantargebangs Waste Power Plant have a capacity of 15,6 MW but according to the evaluation result in 2017, the power plant only produces 250 KW electricity. Therefore the purpose of this writing is to evaluate the systems installed in Bantargebangs Waste Power Plant, identify the problem of the decrease in capacity and lowers the level of pollution contained within the area. Based on the evaluation result of attempting to fix the power plants system using capping and also vertical pipes to collect the landfill gas, it could generates 19,6 MW in the first year and eventually decreased in the following years, until the twentieth year reaches only 0,205MW. Aside from that, the gas engine itself which has broken needs to be fixed by having its sparepart swapped and applying a continued preventive care to minimalize future damages. The evaluation result also obtained that the Waste Power Plant manages to lower the greenhouse gases like CH4 and CO2 on which the CH4 in the first year amounts to 284.130 tons and CO2 amounts to 17.640 tons that decreases in the following years.

Keywords
Renewable Energy, PLTSa Bantargebang, Waste power plant, sanitary landfill

Topic
Biomass, Biofuel

Link: https://ifory.id/abstract/Tt3mCnxrVD7K

Corresponding Author
RIZKIA ARAFAHANISA

Institutions
Univerrsitas Pendidikan Indonesia

Abstract
This study aims to determine and describe students mathematical problem solving abilities in geometry material, namely to build a flat side space. Based on the results of the TIMSS and PISA studies and literature studies indicate that there are still many students who have difficulty in the cognitive process to understand problems and solve problems in word problems. This fact raises this research which aims to investigate the ability to solve problems and difficulties carried out by students in solving material problems in building flat side spaces. This research is qualitative research, involving 26 one of the junior high schools in Bandung which was selected using random sampling techniques. Analysis of the ability to solve problems in this study is based on Polyas steps, namely understanding the problem, devising the plan, implementing the plan and looking back. Data collection techniques used in this study were written tests and interviews. Data were analyzed descriptively. The results of this study indicate that there is a relationship between students problem solving abilities with reflective and impulsive cognitive styles. The results of this study indicate that Impulsive students tend not to go through the stages of planning completion, error calculations, and reluctant to re-examine the solutions that have been found. Unlike the case with Reflective students.

Keywords
problem solving, cognitive style, Geometry

Topic
Science Education

Link: https://ifory.id/abstract/u4VXnhp93wcm

Corresponding Author
AMAN SANTOSO

Institutions
Departement of Chemistry, Universitas Negeri Malang, Indonesia

Abstract
Plastic waste becomes a threat to the environment because it is difficult to degraded. Plastics are organic polymers that can be pyrolysis into simpler molecules. Plastic pyrolysis can be done at high temperatures in special reactors. For efficiency process required reactors are effective and efficient. This research aims to develop reactor and test pyrolysis of several types of plastic waste. This research is a development and experimental with stages include (1) develop reactor kg 2-3 plastic pyrolysis with a dual cooling system (3). Determining the character and yield of plastic waste pyrolysis. The results of this development study are: (1). Plastic pyrolysis reactors to fuel the oil has been made, with a demensions of 30 x 40 x 50 cm, stainless steel, 2-3kg plastic Capacitistas, (2). Plastic from beverage glasses succeeded in pyrolysis in reactor with a temperature range of 190-300 oC to produce a yield of 95% and the raw material of the paper produces 93-94% oil yield, but for the material from the bottle is harder to be dipirolisis. The oil characteristics of the results of the priolysis are light yellow to brownish yellow, odor like oil gasoline.

Keywords
Reactor, plastic, rendement, pyrolysis

Topic
Renewable Energy

Link: https://ifory.id/abstract/Rk6xbKcB3PhL

Corresponding Author
Mayang Dwinta Trisniarti

Institutions
a) Faculty of Postgraduate Sebelas Maret University
Jalan Ir. Sutami 36 A, Surakarta 57126, Indonesia
*mayangdwinta[at]student.uns.ac.id

Abstract
The study reports on the cause of misconceptions in physics have not been done in a major area. The source of misconceptions are students, teachers and learning resources while misconceptions are often caused by preconception, reasoning, intuition and associative thinking. This study aimed to find other factors affecting misconceptions that lead to students- alternative conceptions in learning physics, especially in kinetic theory of gases. The identification of factors affecting that influence students- misconception was conducted by using a set of responses in the questionnaires and administrated to 16 teachers and 66 students from six senior high schools in Surakarta. Interview to six teachers and twelve students as representatives was also held to support the data from questionnaire result. Misconceptions score were collected from the kinetic theory of gases test to explore students- alternative conceptions in learning physics. Two genuine factors affecting the cause of misconceptions were identified namely interpersonal skills and generic science skills.

Keywords
Misconceptions; Interpersonal skills; Generic science skills; Alternative conceptions; Kinetic theory of gases

Topic
Physics Education

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

Corresponding Author
AMAN SANTOSO

Institutions
Departement of Chemistry, Universitas Negeri Malang, Jl. Semarang 5, Indonesia

Abstract
Abundant rice yields abundant fine husks. Rice bran has an oil content that has the potential as a biodiesel material. The synthesis of alkyl esters from vegetable oils can be carried out through an esterification reaction with an acid or alkaline catalyst. The objectives of this study were 1) to find out the yield of extracted rice bran oil, 2) synthesis of methyl esters from rice bran oil through acid catalyst esterification reaction, 3) characterization and to determine the synthesis component of methyl ester and test its potential as biodiesel. Stages in this study, namely 1) extraction of rice bran oil, 2) synthesis of methyl esters from rice bran through esterification reaction, 3) characterization of rice bran methyl ester and its potential test as biodiesel include determination of density, viscosity, refractive index, and test number acid, 4) identification of constituent compounds methyl ester synthesized by GC-MS. The results of research on rice bran oil extraction have a yield of 18.09%. Methyl esters synthesized from rice bran oil through an acid catalyst esterification reaction with a yield of 72.37%. The synthesis of methyl esters into the range of biodiesel quality standards is, density of 0.850 g / mL, viscosity of 4.73 cSt, refractive index of 1.45871, and acid number of 0.76 g KOH / g methyl ester which has the potential as biodiesel. Methyl ester composition of rice bran oil is methyl tetradekanoate (0.38%), methyl hexadecanoate (40.67%), methyl 9-octadecenoate (53.68%), methyl octadecanoate (5.02%), and methyl eicosanoic ( 0.14%).

Keywords
rice bran oil, methyl ester, esterification, acid

Topic
Renewable Energy

Link: https://ifory.id/abstract/P7Y9g2MUCLhn

Corresponding Author
Abubakar Abdullah

Institutions
a) Postgraduate student, State University of Jakarta, Street Rawamangun Advance East Jakarta 13220. Indonesia. Email; *akidaabdullah73[at]gmail.com
b) Faculty of Mathematics and Natural Sciences, State University of Jakarta, Street Rawamangun Advance East Jakarta 13220. Indonesia. Email; maruf.akbar[at]unj.co.id. Email; email: suryadi[at]unj.co.id
c) Faculty of Teacher and Training Education of Khairun University on Ternate, North Maluku, Babullah Airport St, Akehuda North Ternate city 19770. Email sundari[at]uknhair.ac.id

Abstract
The effectiveness of the teacher certification program in position can be evaluated using several indicators. One indicator that can be used as a measure of the effectiveness of teacher certification policies is the Academic competence of teachers. Descriptive research has been conducted which aims to describe the competency profile of Biology teachers who participated in teacher certification positions at PSG 130 Rayon Khairun University in 2014. The data are collected through documentation studies, namely the results of the UKA and UTN documents from the PLPG participants in the field of Biology. Data analysis techniques were conducted in quantitative descriptive. The results of this study indicate; 1) the competency profile of Biology teachers before participating PLPG in the 2014 is categorized as low (34.3); 2) the competency profile of Biology teachers after participating in the PLPG is categorized sufficient (57.1); 3) In general, there is an increase in the competency of Biology study teachers after attending the PLPG in 2014 with N-Gain 22.8. At present the average Biology teacher who has been certified has academic competencies that are able to adapt to the development of education in the 21st century.

Keywords
competency, academic, certification, PLPG

Topic
Biology Education

Link: https://ifory.id/abstract/Pe7uJVWHrKUB

Corresponding Author
Chaerul Rochman

Institutions
UIN Sunan Gunung Djati Bandung

Abstract
This study aims to analyze the literacy of physics concepts based on several types of natural resources in middle school students. The method used in this study is a descriptive participatory method. Samples were collected from 218 high school students around the location of natural resources in West Java. What is the profile of the physics concept for each type of natural resource and how students struggle to express physics concepts, and how to strengthen the literacy skills of students physics concepts. Data analysis was conducted in two types of ways, namely analyzing the results of literacy tests and then analyzing the literacy component, and triangulating qualitatively. The results showed that the ability of physical literacy in all types of natural resources was below average. Difficulties of students generally cannot apply the physics concepts learned in schools with the phenomenon of several types of natural resources contextually. The alternative to improving literacy skills is with sources of enrichment that are both conventional and digital

Keywords
Literacy skill, Natural resource, and Physics concept

Topic
Science Education

Link: https://ifory.id/abstract/3DR4WKcmwAj6

Corresponding Author
Yuni Riznani

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

Abstract
Students- engagement is one of the important factors of students- success in learning. For instance, students- engagement in the stages of problem-based learning encourages students to be able to apply their knowledge and skills to solving problems. This study aims to describe students- engagement and problem solving skills in problem-based learning in science learning. This type of research uses poor experiment research with a descriptive quantitative method. The sample used in this study was seventh grade students in one of the junior high schools in Bandung. The data in this study were collected by using the written test to measure of problem solving skills, while questionnaires and observation sheets were used to measure students- engagement. The results of the study showed that through problem based learning there was an increase of students problem solving skills with a gain score of 0.818 and 89.66% of students engage in learning. The correlation between students- engagement in learning and problem solving skills is 0.648 which shows that students- engagement in problem based learning learning affects on students- problem solving skills.

Keywords
students- engagement, students- problem solving skills, problem based learning, science education.

Topic
Science Education

Link: https://ifory.id/abstract/rBxHV92MkhDy

Corresponding Author
nosep sumiarto

Institutions
Universitas Pendidikan Indonesia

Abstract
The low ability of students creative mathematical thinking is due to the lack of being given open-ended questions to students in the learning process so that the habit of having students creative thinking does not develop. Creative thinking mathematics is the ability to solve problems with various alternative ideas and solutions. One of the practical aspects of behavior that has creative thinking is the habits of mind. Habits of mind are as actions or behavior in solving problems intelligently. This study aims to analyze the effect of students habits of mind mathematics on creative thinking ability by using the ASSURE model. This research was conducted in the seventh grade of a junior high school in Bandung. This research uses the post-test experimental class design. The results show that there are significant effects of habits of mind on mathematics creative thinking abilities by using the ASSURE model with an influence of 16.2%.

Keywords
Habit of mind, Creative thinking, ASSURE model

Topic
Mathematics Education

Link: https://ifory.id/abstract/VYW3QkTJmH2N

Corresponding Author
Agustan Syamsuddin

Institutions
Universitas Muhammadiyah Makassar

Abstract
Nowadays, reflective thinking is one of the important things which become a concern in learning mathematics. Reflective thinking is also used to look for solution toward the problem of mathematics given in the classroom because it can increase student-s willing in completing it. Reflective thinking is identified as a skill for future competence so that it should be trained to students in facing the challenges and responding demands of the 21st century. One of reflective thinking models is taxonomy of reflective thinking which aims to see someone with a reflective thinking skill by checking up, evaluating and testing the truth of a mathematical task which has be done. Subject, in this research paper, is student teacher who has cognitive style of field dependent and enrolled as a student in department of mathematics education. The purpose of this paper is to analyze the ability of prospective teachers mathematical task solving based on taxonomy of reflective thinking. To achieve this purpose is used a qualitative research in describing in depth related to mathematical problem-solving of subject who can be investigated from the subject-s behavior in completing the tasks assigned by paying attention the aspect of taxonomy of reflective thinking. This research report describes that the subject used some mathematics concepts and determined a strategy in solving problem by using the main point of problem based on keywords in two ways which can be implemented in every day life.

Keywords
Prospective Teacher, Mathematical Problem Solving, Taxonomy of Reflective Thinking, Field Dependent

Topic
Mathematics Education

Link: https://ifory.id/abstract/rqhtcMdU87JG

Corresponding Author
alqaan maqbullah ilmi

Institutions
Universitas sebelas maret surakarta

Abstract
We developed a TPACK based-physics learning media. This development using 4D methods. Researchers analyzed the need of learning media that can improve students critical thinking skills with technological offerings. This research take the place in SMA ABBS Surakarta. The research subjects were three senior high school physics teachers and fifty one students. We observed the facilities of the school then concluded that the facilities supported TPACK based learning activity. We also gave questionnaire to teachers about the learning activity. The data gathering was carried out using observation rubric, students- worksheets, presentation scoring rubrics, report scoring rubrics, and two tier multiple choice test instrument on critical thinking skill. The media was validated by two lecturers, two physics teachers, and two peer reviewer. Then it tried out in the small group. In the big group, the media is proven could develop the critical thinking skills with the difference between pre test and post test results were significant.

Keywords
Critical thinking, physics lessons, tpack

Topic
Physics Education

Link: https://ifory.id/abstract/e2dfpNrm3uLn

Corresponding Author
Asri Ode Samura

Institutions
a) IAIN TERNATE, JLn. Dolphins Kelurahan Dufa-dufa Ternate, Indonesia, Postal code (97727)
*asri22samura[at]gmail.com
b) Indonesian Education University, Bandung, Jl. Setiabudi Bandung, Indonesia.
c) Indonesian Education University, Bandung, Jl. Setiabudi Bandung, Indonesia.

Abstract
The study was conducted to determine the critical thinking skills mathematically using a problem-based learning model. This type of quantitative research is designed in an experimental model, using a nonequivalent control-groups pattern. Sampling is not random. A sample of 76 people consisted of two classes. Both classes are given different treatments. Retrieval of data, performed tests twice, namely Pre-test and Post-test. Data were analyzed using independent sample t-test. Hypothesis test results, there is an increase in mathematical critical thinking skills, where the t-test on the value (sig. (2-tailed)) is less than the value of α. conclusion of problem-based learning can improve mathematical critical thinking skills.

Keywords
Mathematical critical thinking skills, problem-based learning.

Topic
Mathematics Education

Link: https://ifory.id/abstract/TRzkNyLH4FEh

Corresponding Author
Myti Sandri

Institutions
Universitas Pendidikan Indonesia

Abstract
The low ability of mathematical communication and interest learn of junior high school students be a background of this research. This study aims to analyze the enhancement of junior high school student-s mathematical communication ability and interest learn through song-based talking stick models. A total of 23 experimental group students and 20 control group students in class VII in one of the junior high schools in Kota Bengkulu. The experimental group learned with song-based talking stick models and the control group learned with conventional learning. The instrument used in this research is a test of mathematical communication ability and questionnaire of interest learn. The data obtained were then analyzed using a test of normality, homogeneity, and two mean differences. The result of the research shows that: (1) Ehancement of mathematical communication ability of students who learned with the song-based talking stick models is higher than students who get conventional learning; (2) Enhancement of students mathematical communication ability in high and medium KAM categories who learned with song-based talking stick models is higher than students in the high and medium KAM categories who received conventional learning; (3) Enhancement of students mathematical communication ability in the low KAM categories who learned with song-based talking stick models is not higher than students in the low KAM category who learned with conventional learning; (4) Interest learn of students who learned with song-based talking stick models is higher than students who learned with conventional learning.

Keywords
Mathematical Communication Ability, Interest Learn, Talking Stick

Topic
Mathematics Education

Link: https://ifory.id/abstract/mUXtDANwB4QL

Corresponding Author
Shofiyatun Nurlaili

Institutions
Department of Primary Education, Universitas Pendidikan Indonesia, Jl.Dr. Setiabudi 229, Bandung 40154, Indonesia

Abstract
Abstract. This study is aimed to identify the Computer Assisted Instruction (CAI) based on learning as an instructional need for students- conceptual understanding about water cycle. Qualitative descriptive method was used in this study. The data collection used observation, interviews, and tests. Participants were three students average 11-13 years old. The multimedia-based CAI application used by the researcher to understand pupils- conceptual understanding of the water cycle is implemented on laptops or desktop computers used Windows operating system. The result showed that pupils- conceptual understanding of the water cycle are still lack and many misconceptions can be seen from the results of student work when drawing water cycles. The sustainable development will be achieved if the instructional needs through improvement of CAI are fulfilled.

Keywords
Computer Assisted Instruction; conceptual understanding; water cycles

Topic
Science Education

Link: https://ifory.id/abstract/EyWraub3khV2

Corresponding Author
NUR AINI ATUSH SHOLIHAH

Institutions
Physics Education Department of Graduation Program Sebelas Maret University, Jl. Ir. Sutami 36A, Kentingan, Jebres, Surakarta 57126, Indonesia

Abstract
Two-tier multiple choice instrument is an instrument consisting of two tiers, the first tier is the choice of the answer from a question and the second tier is the choices of reason for an answer at the first level. The two-tier instrument can be used to measure students-science process skill. This study aims to analyze contents validity two-tier instument multiple choice to measure students- thinking skills in a statistics fluid. The method used in this research is a descriptive analyze a method for content validation based on Formula Aikens. Data of content validation was obtained from 8 experts, consisting of 4 lecturers who had doctorates and 4 high school physics teacher of the senior high school in Madiun. Based on the results and discussion, can be concluded that 14 item question of multiple choices instrument to measure students science process skills in heat and temperature are declared valid based on Aiken Validity.

Keywords
Science Process Skill, Two-Tier Multiple Choice

Topic
Physics Education

Link: https://ifory.id/abstract/Kk3mbXvrTZqe

Corresponding Author
Nurul Barizah

Institutions
Faculty of Law, Universitas Airlangga, Jl. Dharmawangsa Dalam Selatan, Surabaya, 60286, Indonesia

Abstract
Biodiversity still plays a very significant value in the era of fourth industrial revolution as one of the most important industries in this era is life science industry. This era also promotes bioeconomy in which the knowledge-based production and utilization of biological resources and processes considered as the main sources to provide goods and services in sustainable way. However, this biodiversity and knowledge related to it have been conserved and preserved by local communities from generation to generation in the biodiversity rich developing countries. Because of that, the Convention on Biological Diversity (CBD) provides legal basis for the acknowledgement of traditional knowledge related to biodiversity and Nagoya Protocol provides guideline to access and equitable benefit sharing from the use of biodiversity. This Article reviews case studies of access permit and equitable benefit sharing agreements in some selected countries for implementing of the CBD principles and Nagoya Protocol. The focus of this Article is to analyze whether access permit and equitable benefit sharing agreements in practices capable of empowering the economy of local communities. These case studies can be used as best practices for other countries particularly Indonesia on establishing access permit and benefit sharing agreements.

Keywords
Biodiversity, Access and Benefit Sharing, Empowering Local Communities

Topic
Biodiversity Conservation

Link: https://ifory.id/abstract/zJvn2NwuDb9M

Corresponding Author
Rita Mariyana

Institutions
UNIVERSITAS PENDIDIKAN INDONESIA

Abstract
This study aims to develop and improve the quality of learning by developing flipped classroom learning design that is easy to understand, easy to use by following the flow and digital media based so that learners can quickly understand the learning material thus helping to understand the learning. To describe the result of research from the improvement of learning design of flipped classroom based on digital media this research use descriptive method, with purposive sampling technique in learners who follow learning. Data from study results, questionnaires, interviews, observations and documentary studies were analyzed by quantitative and qualitative techniques. The final product is a digital media based classroom flipped classroom design

Keywords
Learning Design, Flipped Classroom, Digital Learning

Topic
Science Education

Link: https://ifory.id/abstract/dZ9Hx6cGpbTY

Corresponding Author
Wahyu Setiawan

Institutions
Program Studi Pendidikan Matematika
Institut Keguruan dan Ilmu Pendidikan Matematika Siliwangi
Jalan Terusan Jenderal Sudirman Cimahi 40526
*kakwahyu3[at]gmail.com

Abstract
This study aims to analyze students mistakes in solving algebraic questions and to find out the opinions of students about the interest in learning mathematics. The research approach taken is qualitative with descriptive method. The instruments used consisted of problem solving questions and interview guidelines. Tests carried out by students are given a score and an analysis of error answers is carried out. The study was conducted on class VIII students in one of the Public Middle Schools in West Bandung Regency. The tests carried out include several stages, namely the understanding stage, the transformation stage and the process skill stage. The results of the study show that most students have difficulty working on question number 3 with process skill indicators. After interviews, students said they did not understand the algebraic concept well and how to transform the problem into algebraic threads. So that it can be concluded that the error of class VIII students in one of the State Junior High Schools in West Bandung in solving algebraic form problems is in the lack of understanding the basic concepts of algebra. It is suggested that the learning process should use learning strategies that can improve students understanding of the basic concepts of matter. However, 61.38% of students have positive opinions on mathematics.

Keywords
Analysis of student errors, student opinions, problem solving

Topic
Mathematics Education

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

Corresponding Author
Martin Bernard

Institutions
a)Fakultas Pendidikan Matematika dan Sains, Institut Keguruan dan Ilmu Pendidikan Siliwangi, Jalan Terusan Jenderal Sudirman, Cimahi, 40526, Indonesia
*pamartin23rnard[at]gmail.com

Abstract
Geometry is a part of mathematics that deals with points, lines, fields, waking up flat, and building space. Basic knowledge for understanding geometry, namely the principle of the euclid postulate, phytagoras theorem, Thales is a mathematical philosophy that develops geometry. And the process of their thinking that students must understand and master to understand geometry. Of course, students must have good analytical skills when dealing with geometry questions that can be solved based on definitions, theorems, axioms, and entries and measured based on cognitive abilities namely understanding, connection, communication, reasoning, critical and creative, each of which has indicators as reference. This can be seen from the results of students in geometric analysis of how to compile geogebraic scriting algorithms and run the language as a result of problem solving.

Keywords
Geometry Analysis, Geogebra Scripting, Student Cognitive Ability.

Topic
Mathematics Education

Link: https://ifory.id/abstract/tKP9BR2L6Wfw

Corresponding Author
Meita Fitrianawati

Institutions
Universitas Ahmad Dahlan

Abstract
The aim of this research is to examine how the relationship between mathematical literacy and students creative thinking abilities. In this study, mathematical literacy has three aspects, namely interpret problems, formulate problems, and use mathematics inside solve the problem. And, creative thinking abilities has 4 aspect, namely fluency, flexibility, originality and elaboration. The type of the research using correlation ex-post facto research which the researcher does not give treatment to the respondent so that this study only reveals the variable as it is without connecting with other variables. Population used Is all first semester students in the 2018/2019 academic year at Ahmad Dahlan University, which numbered 315 people with a total sample of 206 people. Technique data collection carried out in this study is data on mathematical literacy and students creative thinking abilities taken by distributing test instruments and interview. Test description is tested as much as 5 items which is a matter of mathematical literacy and creative thinking ability. Data analysis using regresion analysis and correlation coefficient test using Pearson product moment correlation technique. The results of the study indicates there is significant relationship between literacy skills mathematics with creative thinking of students.

Keywords
mathematical literation, creative thinking abilities, ex post facto research

Topic
Mathematics Education

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

Corresponding Author
Irfan Yusuf

Institutions
(a) Jurusan Pendidikan Fisika, Universitas Papua, Jl. Gunung Salju Amban, Manokwari 98314, Indonesia
*s.widyaningsih[at]unipa.ac.id
(b) Jurusan Pendidikan Fisika, Universitas Negeri Yogyakarta, Jl. Colombo No.1, Karang Malang, Caturtunggal, Kec. Depok, Kabupaten Sleman, Daerah Istimewa Yogyakarta 55281, Indonesia

Abstract
This study is aimed to develop Higher Order Thinking Skills (HOTS)-Oriented Student Worksheet in Electric Circuit Topic through e-learning model. The model used in this study was the ADDIE model, consisting of Analyze, Design, Development, Implementation, and Evaluation. The instruments used were the validity assessment sheet and students- responses to assess the effectiveness and practicality of the developed product. The validity assessment was carried out by seven validators, which consisted of experts and practitioners. Effectiveness and practicality were assessed using object test responses involving 13 students at the Department of Physics of Universitas Papua who enrolled in Basic Physics subject. This study reveals that developed student worksheet is valid from the aspect of content appropriateness, language, presentation, and graphic presentation. Effectiveness and practicality assessment obtained good results. This result showed that the developed HOTS-oriented e-learning in Electric circuit topic was appropriate to be used.

Keywords
student worksheet, e-learning, HOTS, electric circuit

Topic
PHYSICS EDUCATION

Link: https://ifory.id/abstract/PBvxCgL92pdb

Corresponding Author
Irsad Rosidi

Institutions
Program Studi Pendidikan IPA, Universitas Trunojoyo Madura
JalanRaya Telang PO BOX 2 Kamal, Bangkalan, Indonesia
irsad.rosidi[at]gmail.com

Abstract
The purpose of this study was to determine the effect of verbal creativity on the problem solving ability of junior high school students. TASC framework learning in environmental material applied on 7th grade. The samples taken were 30 students, 11 male students and 19 female students. Based on the results, there is an effect of verbal creativity on the problem solving ability with a significance value of 0.00 (< 0.05) with a contribution of 87.5%. Path analysis shows that each indicator of verbal creativity has a significant effect toward the problem solving ability. Learning with the TASC Framework encourages students to develop creative thinking skills and student problem solving.

Keywords
Problem Solving Abilities, Creativity Verbal, TASC

Topic
SCIENCE EDUCATION

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

Corresponding Author
Ishmatul Maulaa

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

*ishmatulmaulaa[at]upi.edu

Abstract
This paper examines environmental literacy which has become a global issue in the world. This study aims to determine the environmental literacy profile of junior high school students in Bandung. The method used was pre-experimental method which is explained by scientific descriptions that are explored descriptively. The population and sample were 7th-grade students of junior high school in Bandung numbering 96 people. Environmental literacy was measured by 30 multiple choice questions covering aspects of knowledge, environmental affective, cognitive skills, and behavior. Environmental literacy test was carried out by adapting the Middle Schools Environmental Survey/Instrument (MSELS/I) test questions used by NELA. The results showed the environmental literacy of 7th-grade junior high school students in Bandung including the medium category. The scores obtained by students for each aspect are not significantly different. Knowledge aspects, affective environment, cognitive skills, and behavior score 53.28; 47,52; 56.64; and 49.17. Based on the achievement level of each group of students, environmental literacy was obtained for the high, medium and low categories of 11%, 57%, and 32%. The results of this study imply the need for teacher efforts to make learning better, more innovative, and oriented towards environmental literacy.

Keywords
environmental literacy, environmetal literacy profile, science learning, global warming

Topic
SCIENCE EDUCATION

Link: https://ifory.id/abstract/whEqFyu4NXcL

Corresponding Author
Andry S. Utama Putra

Institutions
a) Program Studi Pendidikan IPA, Sekolah Pascasarjana, Universitas Pendidikan Indonesia, Jl. Dr. Setiabudi No. 229, Bandung 40154, Indonesia
*andrysutama[at]upi.edu
b) Departemen Pendidikan Teknik Mesin, Universitas Pendidikan Indonesia, Jl. Dr. Setiabudi No. 229, Bandung 40154, Indonesia
c) Departemen Pendidikan Kimia, Universitas Pendidikan Indonesia, Jl. Dr. Setiabudi No. 229, Bandung 40154, Indonesia

Abstract
This study aims to develop a five-tier diagnostic test that can that be used to identify misconceptions and causes of students- misconception on waves and optics materials. This type of research is development research using a 4-D model. The study was conducted in two junior high schools which in West Bandung, West Java with a sample of 193 students. Data analysis used is quantitative analysis by looking at the quality of the items. The results of the study showed that the content validity test obtained a CVI value of 0.833 which was included in the criteria as very appropriate. The empirical validity test obtained the value of MNSQ 0.98 outfit and ZSTD 0.3 outfit which means that the item corresponds to the measured construct. Item reliability 0.86 and Alpha cronbach 0.87 show good reliability. The differentiating problem showed it was not necessary to remove the question. While Point Measure Correlation shows that the level of difficulty of the questions varies greatly. Overall, it can be concluded that the five-tier diagnostic test developed has met the criteria and was declared feasible for identifying misconceptions and causes of students misconceptions in waves and optics materials.

Keywords
Five-tier diagnostic test; Misconceptions; Waves and optics

Topic
SCIENCE EDUCATION

Link: https://ifory.id/abstract/EM8TXkQYUAVa

Corresponding Author
Akhmad Sukri

Institutions
1) Department of Biology Education, IKIP Mataram, Indonesia
2) Department of Non-Formal Education, IKIP Mataram, Indonesia
3) Department of Educational Technology, IKIP Mataram, Indonesia
4)SDN 1 Malaka, North Lombok, Indonesia
5)SDN Teratak, Central Lombok, Indonesia
*corresponding author : akhmadsukri[at]ikipmataram.ac.id

Abstract
The use of media in learning process is very important because the media not only serves as a messenger, but the media also influence thoughts, feelings, students willingness to learn, and students understanding. The purpose of this study is to examine the effectiveness of comics as a learning media based on green education on the learning outcomes of elementary school students in West Nusa Tenggara. This study was a quasi-experimental study using a 2 x 2 factorial design. Two sample schools come from Central Lombok and North Lombok are taken randomly with a total of 86 students from grades 4 and 5. The experimental class is given treatment by using green education-based comic media, while the control class uses conventional methods. The data of learning outcomes were collected through concept understanding test instruments then it is analyzed by using One Way Anova with the help of SPSS Version 21 software for Windows. The results showed that (1) student learning outcomes in the experimental class are higher than the control class (p = 0.001 <0.05), and (2) there were no differences in learning outcomes between grade IV students and grade V elementary school (p 0.06> 0.05). Based on the results of this study, it is concluded that the implementation of green education-based comic media can improve student learning outcomes and can be used for all grade levels, especially high-class in elementary school.

Keywords
learning outcomes, green education-based comic media

Topic
BIOLOGY EDUCATION

Link: https://ifory.id/abstract/PcjJYRtg2aT4

Corresponding Author
Eda Lolo Allo

Institutions
a) Program Studi Pendidikan IPA, Sekolah Pascasarjana, Universitas Pendidikan Indonesia, Jl. Dr. Setiabudi No. 229, Bandung 40154, Indonesia
b) Program Studi Pendidikan Kimia, Universitas Pendidikan Indonesia, Jl. Dr. Setiabudi No. 229, Bandung 40154, Indonesia
c) Program Studi Pendidikan Kimia, Universitas Negeri Makassar, Jl. Malangkeri, Makassar 90221, Indonesia
*eda.lolo.allo[at]unm.ac.id

Abstract
Self-efficacy has an important role for the development of the competency of prospective teacher students and basically already exists in every student. To find out the initial description of this self-efficacy, instruments need to be developed that can measure aspects related to the self-efficacy. The instrument used to measure student self-efficacy was in the form of a questionnaire developed based on the framework model of Riggs & Knochs (1990) and Bleicher (2004). The instrument validation process was carried out through qualitative and quantitative analysis. Qualitative analysis of items was carried out through a study by two linguists. Furthermore, item analysis was carried out quantitatively to determine the level of validity and reliability of the item. The results of the study showed that all items in the self-efficacy questionnaire were valid and reliable so that it can be concluded that the self-efficacy instruments are valid and feasible.

Keywords
Self-efficacy, chemistry prospective teacher, questionnaire

Topic
CHEMISTRY EDUCATION

Link: https://ifory.id/abstract/hB79EbagZDrP

Corresponding Author
Sandi Kurnia

Institutions
Department of Physics Education FPMIPA, UPI, Jl. Dr. Setiabudhi No. 299,
Bandung 40154

Abstract
The background of this study was the low of science literacy skills of student in Indonesia and the ability of science literacy in Indonesia is still below average. In addition, outstanding learning resources in schools dominated by communicating aspects of the aspects of the scientific approach, that means the resources are still focus on studied physics in understanding the concept of direct and presentation formula. The aims of this study to measure the effectiveness of using physics electronic book for senior high school based on a scientific approach in heat and temperature topics. The method used is pre-experimental research design with one shot case study. The electronic book has been validated by some media experts and content experts and declared suitable for use. Other than that, This book also received positive responses from the students and teachers of physics. The results obtained show that the electronic book effective in developing science process skills with a percentage of 81.43% and entered into the criteria of good.

Keywords
Electronic Book, Scientific Approach, Temperature and Heat

Topic
PHYSICS EDUCATION

Link: https://ifory.id/abstract/Y9kjX2HrLdEf

Corresponding Author
Yusran Khery

Institutions
IKIP Mataram,Jalan Pemuda 59 A, Mataram, Indonesia

Abstract
The aim of this research was to evaluate the influence of Mobile - NOS Model of Learning to Students Understanding of Nature of Science (NOS) and Scientific Literacy on general chemistry course. In form quasi experimental, this was carried out by posttest only control group design at the Faculty of Mathematics and Science Education of IKIP Mataram. The research subjects were 75 students participating in the General Chemistry course for the academic year 2018-2019 that taken by the saturated sampling method. Subject separated on two groups that were experiment group was treated by Mobile - NOS Model of Learning and control group with NOS Oriented Learning. Data were collected by understanding NOS questionnaire and scientific literacy test and observation sheet. Data was analyzed by independent samples t test. Research result showed that there are influence of Mobile - NOS Model of Learning to Students Understanding of Nature of Science (NOS) and Scientific Literacy.

Keywords
Mobile - NOS Model of Learning, Understanding Nature of Science (NOS), Scientific Literacy

Topic
CHEMISTRY EDUCATION

Link: https://ifory.id/abstract/p6cLHUC8NQaE

Corresponding Author
Ahmad Muzaki

Institutions
(a), (b) Department of Mathematics Education, Faculty of Mathematics and Science Education, IKIP Mataram
jl. Pemuda No. 59 A Dasan Agung Baru 83125

Abstract
The ability of mathematical literacy is very important to be known and owned by students because mathematics is very closely related to everyday life. Mathematical literacy can help students to understand the role and usefulness of mathematics in everyday life. This is what connects mathematics that is learned in the classroom with various kinds of real situations so that by having the ability of mathematical literacy, students are expected to be able to solve problems in school and problems in daily life. This article will discuss what mathematical literacy is, what its aspects are, what the indicators are and how to assesment and develop a persons level of mathematical literacy.

Keywords
mathematical literacy

Topic
SCIENCE EDUCATION

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

Corresponding Author
Anjas Arota

Institutions
1Mahasiswa Program Studi Magister Pendidikan Fisika, Universitas Negeri Gorontalo, Jl. Jend. Sudirman No. 06 Gorontalo 96128, Indonesia
2Dosen Program Studi Magister Pendidikan Fisika, Universitas Negeri Gorontalo, Jl. Jend. Sudirman No. 06 Gorontalo 96128, Indonesia
*abdul.haris.odja[at]gmail.com

Abstract
Learning method affects learning outcomes, to obtain an effective and interesting learning process require an innovative learning method that is easily understood by students, namely by using learning media. This research applied Edmodo media, which was expected to improve student learning outcomes in SMA Terpadu Wira Bhakti of Gorontalo. The main objective of this research was to measure the effectiveness of e-learning based innovative learning sets with Edmodo to improve students- critical thinking skill in optical instruments material in SMA (Senior High School). The method used was Research and Development (R & D), with one group pretest-posttest design. The developed learning sets were syllabus, lesson plan, teaching material, Student Worksheet, Learning Outcomes Test, and assessment instrument. The research finding and analysis showed that the improvement in students- critical thinking skills on social media was very high, where the average N-gain value was 0.72. Based on the previous finding, it could be concluded that e-learning-based innovative learning set with Edmodo was effective to improve students- critical thinking skills in the material of the optical instrument.

Keywords
Learning devices, E-Learning with edmodo, Critical Thinking

Topic
PHYSICS EDUCATION

Link: https://ifory.id/abstract/n7LAp3zUkCaE