Indonesia Conference Directory

Corresponding Author
Susanti Wulandari Wulandari

Institutions
(a) Darul Hikam Integrated School
Jalan Maribaya No. 89, Lembang Bandung
*susantiwulandari[at]upi.edu
(b) Universitas Pendidikan Indonesia
Jalan Dr. Setiabudi No 229, Bandung

Abstract
This research intends to describe students- argumentative skill and creativity as learning outcomes on STEM-based instruction on water pollution topic. Argumentative skill analyzed through Toulmin Argumentation Pattern (TAP) and classified based on students- argumentation level. STEM-based instruction applied in materials of water pollution during three meetings. The subject of this research is natural science students grade 10 that comprises of 37 students of Darul Hikam International School. Descriptive research design was chosen to describe students- learning outcomes of STEM-based instruction which have stages as follows: 1)identifying problem; 2)brainstorming; 3)design; 4)construct; 5)test/evaluation; 6)sharing solution; and 7)redesign. Two classes of Darul Hikam International School grade 10 were taken totally as participants in this research. Instruments in the form of essay qurestion and worksheet were made to measure students- argumentative skill. Meanwhile, questionnaire, student-s design and product were used to reveal students- creativity. Data analysis shows that STEM-based instruction can facilitate students- communication skill which represented by students- argumentative skill in level 3. It means that students recognize that adequate evidence is needed to support a claim. Besides, STEM-based instruction can arrise students- creativity.

Keywords
STEM-based learning, water pollution, communication skill, creativity

Topic
Biology Education

Link: https://ifory.id/abstract/PVvN3ZjhMdLK

Corresponding Author
Riandy Pratama

Institutions
1. Pascasarjana UNNES
2. UIN Raden Intan Lampung
3. UIN Raden Intan Lampung

Abstract
The research aims (1) To know the relationship between students who have kinesthetic ability to learn Biology subjects (2) to know the difference in student grades based on kinesthetic indicators. The method used is the correlational method using 1 class as an experimental class as well using product moment formula. This research was held on May 29 until June 10, 2017 sample taken class XI MIPA I SMAN 2 Bandar Lampung with purposive sampling technique. SMAN 2 Bandar Lampungs mission is to develop the potential of learners Multiple Intelligences including intelligent motion. Grid refers the book Suharsimi Arikunto consists of 45 statements based on the indicator of kinesthetic ability, consisting of 5 indicators to look for differences in the value of each indicator using a one-way Anova Test. Data collection techniques by taking the value of UAS Biology XI MIPA 1 value that will be analyzed. Based on data analysis using SPSS program. A significant value between kinaesthetic ability and learning outcomes Sig(0.368)> α (0.05) then H_0 rejected. Meaning there is a significant relationship in kinesthetic to study outcome biology grade XI MIPA1 student at SMAN 2 Bandar Lampung with correlation interpretation is quite related.

Keywords
Multiple Intelligences, Kinesthetic Abilities, Learning Outcomes

Topic
Biology Education

Link: https://ifory.id/abstract/E368pFTJMw24

Corresponding Author
Rizal Adimayuda

Institutions
Departemen Pendidikan Fisika, Universitas Pendidikan Indonesia, Bandung, Indonesia

Abstract
Assessment is an important component in education always needed. To improve the quality of education can be done through by improving assessment learning quality and system. This study aims to determine the performance students of grade X SMA N in Bandung West Java Indonesia school with 34 participants on two-dimensional collision concept. This research is a descriptive research which is conducted to examine the condition and situation that is happening, so that gives a fact-based description found in the school in other to find information factually. Problem studies that analysed is the students performance after using PhET simulations on two-dimensional collision concept. The instrument utilized in this study is a written test in the form students- worksheets of momentum and impulse. Student worksheets test show the average percentage on student performance in understandings concept of two-dimensional collision concept is 67.14%. From these data indicated that student learning performance in good category. Learning by using virtual laboratory can provide a more meaningful learning especially in physics concept that cannot be presented and observed directly in everyday.

Keywords
momentum, impulse, PhET simulations, Two dimensional collision

Topic
Physics Education

Link: https://ifory.id/abstract/ydnMF8DAefQj

Corresponding Author
Yulisa Nurdini

Institutions
a)Pendidikan Biologi,Sekolah Pasca Sarjana, Universitas Pendidikan Indonesia, Jl. Dr. Setiabudi No.229 Bandung 40154, Indonesia
*yulisanurdini[at]upi.edu
b) Departemen Pendidikan Biologi, Universitas Pendidikan Indonesia, Jl. Dr. Setiabudi No.229 Bandung 40154, Indonesia

Abstract
Development of 21st century skills becomes essential life skills in supporting individuals to adapt well to 21st century life. One of the 21st century skills that needs is critical thinking skills. Development of student skills can be done through learning and appropriate assessments. The application of assessment for learning is an effort that can be done to develop student skills. The feedback provided can help students to plan and improve their learning strategies. However, the application of assessments in the learning process is often not optimal. Therefore, it is necessary to do research on the application of assessment for learning to improve students critical thinking skills. This study uses quasy experiment method with the pretest posttest control group design. Assessment for learning through written feedback is applied to experimental class, while the control class is given of conventional assessment. Indicators of critical thinking skills in this study were developed based on the Partnership for 21st Century Skills. The results showed that the application of assessment for learning through written feedback can improve students critical thinking skills. This is indicated by the experimental class average N-gain value is 0.82 in Pteridophyta and 0,87 in Bryophyta subchapter.

Keywords
Assessment for learning; written feedback; Plantae

Topic
Biology Education

Link: https://ifory.id/abstract/FNUXDjyeq2nf

Corresponding Author
Shelly Morin

Institutions
(1) Departemen Pendidikan Matematika, Universitas Pendidikan Indonesia, Jl. Dr. Setia budhi No.229, Bandung 40154, Indonesia
(*) shellymorin96[at]upi.edu

Abstract
This study aims to obtain an overview of teacher difficulties in carrying out mathematical learning assessments based on the 2013 curriculum. The method used in this study was qualitative descriptive. The research subjects were mathematics teachers in three schools in Bandung. Based on the results of the study, in the planning stage, it finds that teachers are lack the evaluation format and less preparation in making learning instruments. In the stage of implementation, the teachers have difficulty in doing assessment because they do not understand whether assessment formats had been made by them in accordance with the 2013 curriculum. Teachers are also have difficulty dealing with the time for conducting the entire assessment process. In the stage of making report, the teachers have difficulty in comprehending the meaning of the report results presented in some forms, like in the form of numbers, letters, and descriptive.

Keywords
mathematic assessment; 2013 curriculum

Topic
Mathematics Education

Link: https://ifory.id/abstract/Bpzekc47LxQP

Corresponding Author
Afian akhbar mustam

Institutions
1) Faculty of Science and Mathematics (FSM), Sultan Idris Education University, Malaysia.
2) Institute of Teacher Education Temenggong Ibrahim Campus
3) Institute of Teacher Education Bahasa Melayu Campus

Abstract
Statistics is increasingly being recognized as a necessary component in many colleges, universities and teacher training programs. The importance of this component of mathematics is essential to bettering one-s economic prospects, gaining employment, keeping employment, and obtaining better employment. The main objective of this study was to determine the attitude of pre-service teachers towards statistics. This study also aimed to investigate the relationship between attitude towards statistics with gender, major and campus respectively. The participants comprised of 80 undergraduates from the Institute of Teacher Education (IPG) who were enrolled in the preparatory programme for the bachelor-s degree in education; whereby, they need to undertake the Basic Statistics Course. They consisted of 3 main majors, namely, Malay Language; Physical Education and Health; and Design and Technology from two campuses which are Bahasa Melayu Campus and Temenggong Ibrahim Campus. The Survey of Attitudes toward Statistics (SATS 36) which was translated into Malay language and contains 36 items that assess six constructs (r=.827) was used to answer the main objective of this study. The study found that the attitude of pre-service teachers towards statistics were ranked medium (3.437). In order to address the second objective of this study, the Spearman correlation test using SPSS was employed to analyse the data collected through the SATS 36 questionnaire. The analyses indicated a very weak correlation between attitude toward statistics and gender (r=.048;p=.672), major (r=.153;p=.174) and campus location (r=.074;p=.514) respectively, which were not statistically significant.

Keywords
Attitude , Pre-service Teacher, SATS-36, statistics

Topic
Mathematics Education

Link: https://ifory.id/abstract/JNktmgjHBw2V

Corresponding Author
Irham Taufiq

Institutions
(a) Universitas Sarjanawiyata Tamansiswa Yogyakarta
*irham.taufiq[at]ustjogja.ac.id
(b) SMAIT Abu Bakar Boarding School Kulon Progo

Abstract
The binomial distribution is one of the discrete probability distributions that the application is easy to found in everyday life. Therefore, now, binomial distribution began to be introduced in mathematics learning at senior high school. The problem is the literacy provided by schools does not optimize the concept of binomial distribution itself. This research is a descriptive analysis that aims to describe the problems in one of the books in senior high school with the subject is binomial distribution. Based on the analysis that has been done, there are several problems, such as (1) the discussion scheme is less structured and there are several important concepts that are not given; (2) the description of statistics on the binomial distribution is less detailed (in this case mean and variance). The results of this analysis are expected to be one of the references for book developers to create books with discussions that optimize students conceptual understanding, especially in binomial distributions.

Keywords
binomial distribution, learning trajectory, learning literacy

Topic
Mathematics Education

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

Corresponding Author
Mimi Halimah

Institutions
1Sekolah Pascasarjana, Universitas Pendidikan Indonesia, Jl. Dr. Setiabudi No. 229, Bandung 40154, Indonesia
2Program Studi Pendidikan Biologi, FKIP, Universitas Pasundan Bandung Indonesia, Jl. Tamansari No. 6-8, Bandung 40116, Indonesia
3Departemen Pendidikan Biologi, Universitas Pendidikan Indonesia, Jl. Dr. Setiabudi No. 229, Bandung 40154, Indonesia

Abstract
To survive in the 21st century requires a variety of skills. Achieving 21st century skills is conducted by updating the quality of learning, including in Biotechnology. Biotechnology is one of the subjects in Biology Education Study Program FKIP UNPAS Bandung, aims to provide as Biology teacher candidates that can apply, develop and disseminate science and technology professionally. The purpose of this study was to determine the learning process of biotechnology of students of Biology teacher candidates in the Biology Education Study Program. The method used was descriptive qualitative with a questionnaire consisting of 15 questions which are a mixture of questions in open and closed forms and also interviews. Amount 38 students and two lecturers were involved in this study. The results showed that the learning process in the Biology Education Study Program, FKIP UNPAS, still uses the classical method by teaching-centered learning system. Another finding that the enthusiasm of the teaching staff to develop themselves is very potential to encourage the improvement of the quality of the learning process in the near future. Evidently, although it is still centered on the instructors, lecturers have used a scientific approach, PPA models and power point media equipped with animated videos.

Keywords
Learning Biotechnology profile, 21 st Century, Biology education

Topic
Biology Education

Link: https://ifory.id/abstract/LpRfb9a8mkgj

Corresponding Author
Hani Nurhasanah

Institutions
Universitas Pendidikan Indonesia

Abstract
The purpose of this study is to describe the results of the analysis of Ways of Thinking (WoT) and Ways of Understanding (WoU) of students in solving vector problems based on Harel-s Theory. The analysis carried out was related to Harels Theory and clinical interview based on Interview Communication Map (ICM). The subjects in this study were 50 high school students in Bandung, West Java, Indonesia. This study used qualitative research. The process of collecting data was through literature studies, observations, tests, and interviews. The results found that WoT and WoU of students influence each other. The way of thinking affects students- understanding about a concept which later will influence the way students think in solving mathematical problems. Each category of WoT and WoU was influenced by external factors and internal factors. External factors were the instructional principles mentioned by Harel, while internal factors were local necessity which include self-motivation. So that, WoT and WoU of students in solving vector problems is related and affect each other and also they have unique characteristics.

Keywords
instructional principles, interview communication map, self-motivation, Harel-s Theory, ways of thinking, ways of understanding, vector

Topic
Mathematics Education

Link: https://ifory.id/abstract/jNH8xF2apk9D

Corresponding Author
Rintoni Rintoni

Institutions
a) Candidate for Master of General and Character Education, Indonesia University of Education
rin.toni[at]upi.edu
b) Department of Citizenship Education, Indonesia University of Education
c) Department of Biology Education, Indonesia University of Education

Abstract
This study aims to explore, study and identify information about character education of environmental care through biology learning. This research was conducted on biology learning, the sub-chapter of ecosystem in class X (Ten) at SMK Negeri 1 Pusakanagara, Subang. This study uses a qualitative approach with a case study method. Data collection techniques are carried out by observation, interviews and document analysis. Data are analyzed by stages: data collection, data reduction, data presentation and conclusion drawing; then the validity was tested using triangulation. Based on the results of the study, it was found that: 1) In biology learning planning contained values of environmental care on learning goals, learning processes and learning evaluation, 2) During the learning process the teacher taught and instilled character values of environmental care through information transfer (value), habituation, modelling and conditioning, 3) In evaluating learning, the character values of the environmental care are cultivated through cognitive, affective and psychomotor assessment. This paper is expected to stimulate research and develop education science and practice in Indonesia.

Keywords
Character Education, Environmental Care, Biology Learning, Ecosystem

Topic
Biology Education

Link: https://ifory.id/abstract/eUQVHD7q6RwA

Corresponding Author
Yohanes Hariaman Nada

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

Abstract
Facts in the field show that there are still many students who have difficulty in understanding concepts of algebra and have a low ability in algebraic thinking. One of the factors that influence the situation is because students find it difficult to change their thinking processes from arithmetic thinking to algebraic thinking. Students who are accustomed to operating in arithmetic terms of reference tend not to see the relational aspects of operations, but their focus is on calculations. The purpose of this study was to analyze the characteristics of students mathematical representation in solving problems related to algebraic thinking. This research is a qualitative research conducted on 6th grade students of elementary school and 7th grade students of junior high school. Based on the analysis of the results of written tests and interviews, it was found that elementary and high school students have similarities and differences in the mathematical representations they use to solving algebraic thinking problems. In addition, the researcher found that both elementary school students and junior high school students tended to use a combination of several representations to express mathematical ideas found in the problem.

Keywords
Mathematical representation; algebraic thinking; algebraic thinking problems.

Topic
Mathematics Education

Link: https://ifory.id/abstract/UrP6ZB2gmTkM

Corresponding Author
Indrie Prihastuti

Institutions
(a) Doctoral student of Science education at Universitas Pendidikan Indonesia
Jl. Dr. Setiabudi 229 Bandung, West Java, Indonesia
*arifinindrie[at]gmail.com
(b) Science Education, Universitas Pendidikan Indonesia
(c) Chemistry Education, Universitas Pendidikan Indonesi

Abstract
This case study aims to obtain an overview of cognitive levels in science items tests used in the secondary school assessments in Banten Province. Cognitive level analysis was carried out on 3 types of science assessment documents (1) national examination (UN) from year 2017 and 2018; (2) national standardized school examination (USBN) used in eight districts from year 2018, and (3) summative tests taken from 8 secondary schools in each district of Banten Province. Determination of cognitive level was using Bloom taxonomy revision. In addition, data collection was conducted through questionnaires to capture information about teachers professional development on designing science items test. The questionnaire was responded by 30 science teachers from representatives of 4 districts in Banten province: Lebak, Serang, Cilegon and Tangerang. Interview was conducted for 5 selected teachers to get deeper information about PD programs. The results showed that percentage of cognitive levels in UN documents especially for higher level questions (Level C4) has increased over the past two years. Meanwhile, lower level questions has decreased especially for level C1 questions. Cognitive level analysis of USBN document showed that the highest percentage (50%) of cognitive levels is level C2, followed by level C3 of 26%, and 18% of level C1. The analysis of cognitive levels in summative test document showed that the questions with level C2 have the largest proportion (56%), followed by the questions of level C1 and C2 with the same proportion of 22%. There were no higher level questions which made by teachers in USBN and summative test documents. Misalignment of cognitive level was occurred between basic competency standard (KD) and teachers questions in summative test documents especially for KD with analyzing (Level C4) verbs. The teachers professional development programs related to assessment and test item development were still lack of direct practices especially for developing higher level questions. Intensive teachers professional development programs are really needed to improve teachers skills in developing higher level items test.

Keywords
cognitive level, assessment, question, test, teacher

Topic
Science Education

Link: https://ifory.id/abstract/ZudR3kbjzNFH

Corresponding Author
Resti Yulianti Hidayat

Institutions
a) Departemen Kimia, Universitas Pendidikan Indonesia, Jl. Dr. Setiabudi No. 229, Bandung 40154, Indonesia
*restiyuliantihidayat[at]upi.edu
b) SMA BPI 1, Yayasan Badan Perguruan Indonesia, Jl. Burangrang No. 8, Bandung 40262, Indonesia

Abstract
Collaborative skills are skills that must be possessed by each student in accordance with the demands of the 2013 curriculum. The purpose of this research is to identify students- collaborative skills through learning sharing and jumping task on the topic of redox reactions. The research was conducted at one of the schools in Bandung in class X.4. This research used descriptive analysis method. The data was obtained through recording and observating. Transcript Based Lesson Analysis (TBLA) was used to analyze the transcripts. Based on the analysis result of seven indicators of collaborative skills consisting of listening to others well, being able to speak and argue, respecting the others opinions, working together to solve problems, sharing the tasks with group members, showing care of friends having trouble, being able to guide the others to achieve goals, showing good appearance. The first indicator is the most frequently identified indicator and the fifth indicatos is the identified indicator which is lower than the other indicators.

Keywords
Collaborative skills, sharing and jumping task, redox reaction

Topic
Chemistry Education

Link: https://ifory.id/abstract/9eaHL6MTwD8Q

Corresponding Author
ELISABETH PRATIDHINA

Institutions
Department of Physics Education, Widya Mandala Catholic University Surabaya

Abstract
In this study, we describe an interesting relationship between uniform circular motion and simple harmonic motion trough simple experiment. The experiment requires a low cost-easily found materials and free software Video Tracker. To represent uniform circular motion, we use a tape stick on a fan moving with constant angular speed. Meanwhile, spring and pendulum motion are used for representing the simple harmonic motion. Through Video Tracker analysis, we showed that the positions (x and y coordinates) of an object moves along a circle with constant angular speed follow a sinusoidal function, as same as, showed in simple harmonic motion. This simple experiment can be embedded in high school physics or introductory physics in college to lead for the students to develop conceptual understanding about uniform circular motion with less mathematical approach.

Keywords
uniform circular motion, simple harmonic motion, Video Tracker, introductory physics course

Topic
Physics Education

Link: https://ifory.id/abstract/cQG8eTKyN4E7

Corresponding Author
M Hafiz

Institutions
a) Program Studi Pendidikan Matematika, Universitas Islam Negeri Syarif Hidayatullah Jakarta
Jl. Ir. H. Djuanda No. 95 Tangerang Selatan 15412, Indonesia
b) Departemen Pendidikan Matematika, Universitas Pendidikan Indonesia
Jl. Dr. Setiabudi No. 229, Bandung 40154, Indonesia

Abstract
Mathematical literacy is an individual-s capacity to formulate, employ and interpret mathematics in a variety of contexts. The purpose of this study was to review the comparison of enhancement in mathematical literacy between students who received problem-based learning and other group of students who received guided discovery learning based on a) initial mathematical ability in overall b) level of initial mathematical ability (high, medium, and low). This research was conducted at a junior high school in Jakarta. The method used in this study was quasi-experimental with 66 students as the samples. The instrument used to collect the data was mathematical literacy test. The results of this study are: 1) enhancement in mathematical literacy between the students receiving problem-based learning was higher than the students who received guided discovery learning based on initial mathematical ability on overall and those who started on medium level of ability, 2) enhancement in mathematical literacy between the students receiving problem-based learning is not higher than the students who received guided discovery learning based on high and low level of initial mathematical ability.

Keywords
Problem based learning; Guided discovery learning; Mathematical literacy; Initial mathematical ability

Topic
Mathematics Education

Link: https://ifory.id/abstract/T4RUM2dHaG3J

Corresponding Author
Ensiwi Munarsih

Institutions
(a)Institute of pharmacy Bhakti Pertiwi Palembang
Jl.Ariodilla III No.22A Palembang
*ensiwi.munarsih[at]gmail.com
(b) Indo Global Mandiri University
Jl. Jend. Sudirman KM 4,5 Palembang

Abstract
Dengue fever is an acute disease caused by the dengue virus. Dengue fever is still a public health issue in major cities in Indonesia, one of which is Palembang. Based on the profile done by Palembang City-s Public Health Office in 2017, dengue fever cases in the area from year to year tend to fluctuates. To get the overview of the number of dengue fever cases in the upcoming years, time series forecasting methods are used, namely the Exponential Smoothing method and the Autoregressive Integrated Moving Average (ARIMA) method. Afterward, the results of predictions from the two methods are compared. Forecasting using the ARIMA method gives the smallest MSE and MAE results of 108077,877 and 172,424, respectively, compared to the Exponential Smoothing method. This means that the ARIMA method is better at predicting the number of dengue fever cases in Palembang in the coming years.

Keywords
Number of Cases of Dengue fever, MAE and MSE

Topic
Mathematics Education

Link: https://ifory.id/abstract/VZHXD23UCAWw

Corresponding Author
Reni Marlina marlina

Institutions
a) Departemen Pendidikan Biologi, Universitas Tanjungpura, Jl. Prof. Dr. H. Hadari Nawawi, Pontianak 78124, Indonesia
*reni.marlina[at]fkip.untan.ac.id

b) Departemen Pendidikan Guru Anak Usia Dini, Universitas
Tanjungpura, Jl. Prof. Dr. H. Hadari Nawawi, Pontianak 78124, Indonesia

c) Departemen Pendidikan Fisika, Universitas
Tanjungpura, Jl. Prof. Dr. H. Hadari Nawawi, Pontianak 78124, Indonesia

d) Departemen Biologi, Universitas
Palangka Raya, Jl. Yos Sudarso, Palangka Raya 73111, Indonesia

Abstract
This research was intended to measure and compare students- ability in learning human body recognition. Students who were participants in this study were five year-olds in kindergarten and eight-year-olds in elementary school in Kubu Raya Regency, West Kalimantan, Indonesia. They studied in 19 kindergartens and 5 elementary schools in Kubu Raya Regency. The sample total of students in kindergarten was 223 and the students from elementary school was 107 students. Both groups learned the human body during as many as three meetings. Data was collected and measured by questionnaire with 7 statements including 2 statements about what they knew before the lesson, 2 statements about what they did during the lesson, and 3 statements about how they did their homework; alone, with their parents, or their friends. Overall, these results indicate that 72% of students in elementary schools were better prepared for the lesson than students in kindergarten, but 89% of students in kindergarten did their homework alone and 63% of students in elementary school did their homework with their parents and their friends. In Summary, five-year- old students in kindergarten are more autonomous than eight-year-old students in elementary school.

Keywords
Human Bodi Recognition, Learning Pattern

Topic
Science Education

Link: https://ifory.id/abstract/QcJkG7KERqu9

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
Tri Isti Hartini

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

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

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

Topic
Physics Education

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

Corresponding Author
Hutnal Basori

Institutions
1)Prodi S3 Pendidikan IPA, Universitas Pendidikan Indonesia, Jl. Dr. Setiabudi No. 229, Bandung 40154, Indonesia
2)Departemen Pendidikan Fisika, Universitas pendidikan Indonesia, Jl. Dr. Setiabudhi No. 229, Bandung 40154, Indonesia

Abstract
The aim of study was to obtain an overview of the effects of application of conceptual construction-reconstruction oriented instruction (CCROI) using the Tetrahedral-ZPD (T-ZPD) strategy on the concept progression of high school students related to the concept of parallel electric circuits. The categories of concept progression reviewed included: consistent with scientific conceptions, progressing well, not progressing and degradation. A pre-experiment method with one group pretest-posttest design was used in this research. The number of research subjects was 38 students consisting of 20 female and 18 male, in one of the high schools in the West Bandung district of West Java province. Data were collected by conception test in the four tier test format related to parallel electric circuits. The results showed that before the application of CCROI, the state of conception of the students are: scinetific conception (0%), misconception (68%), and no conception (32%), whereas after the application of CCROI, the students conception are: scientific conception (82%), misconception (13%), and no conception (5%). Based on the state of students- conception it can be determined the number of students in each category of concept progression as follows: consistent with scientific conceptions (0%), progressing well (82%), not progressing (18%) and degradation (0%). These results indicate that the implementation of CCROI with the T-ZPD strategy has a high effectiveness in facilitating the achievement of the category of concept progression that progressing well.

Keywords
Concept progression, high school students, CCROI, T-ZPD Strategy

Topic
Physics Education

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

Corresponding Author
Delisma Delisma

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

*delisma[at]upi.edu

Abstract
This study aims to analyze conception, threshold concepts, and troublesome knowledge in redox reactions. This study uses a qualitative method by analyzing journal articles which presented research studies about conception. Beside, this study also conducted interviews with five chemistry teachers to obtain information about the thresholds concept and troublesome knowledge. Based on the analysis of the journal about conception for redox reaction, the majority of students answered questions correctly regarding the concept of the definition of oxidation numbers based on binding and releasing oxygen, determining reducing and oxidizing agents. In contrast, most students experience a misconception about the concept of oxidation and electron transfer, which is to assume that the charge on the molecule and polyatomic ion is an oxidation number, changes in charges on polyatomic ions and molecules can be used to identify oxidized and reduced species, and electron transfer occurs as the bond between cation and spectator ion breaks/ forms. Meanwhile the threshold concept are position of elements based on groups, proust laws, equation of reaction, electronegativity, symbols and element names, and chemical nomenclature. While troublesome knowledge for redox reactions are an abstract concept, complexity in determining oxidation numbers, complexity in using definitions, and language used.

Keywords
Conception, threshold concepts, troublesome knowledge, redox reactions

Topic
Chemistry Education

Link: https://ifory.id/abstract/7mYt6XurAaJE

Corresponding Author
Annisa Mailia Ulfa

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

Abstract
Abstract. In recent years, many studies have shown that chemical reactions are concepts that are difficult for students to understand so they can cause misconceptions. The purpose of this study was to determine the conceptions, threshold concepts and troublesome knowledge in chemical reaction from previous studies and from interviews with chemistry teachers. This study uses qualitative methods and document analysis. Based on analysis of journals and interviews, there are a number of correct concepts, namely: atomic reorganization, breaking and reformation of bonds, and changes in physical or chemical properties. While students misconceptions in the chemical reaction material consist of: ion compounds formed from cations and molecules, cations will bind to negatively charged atoms and vice versa, compounds in solution will be neutral or molecular atoms, and write ions with the wrong charge. Meanwhile, threshold concepts consists of: concept of mixture, physical and chemical properties, material changes, concepts of protons and electrons, electron configurations, forces between molecules, chemical formulas/chemical symbols, chemical bonds, nomenclature of chemical compounds, ionic charges, and Lavoisier law. While troublesome knowledge consists of: the complexity of the particles involved, the complexity of interactions that may occur, the complexity of applying Lavoisiers Law, and the language used.

Keywords
conceptions, threshold concepts, troublesome knowledge, chemical reaction

Topic
Chemistry Education

Link: https://ifory.id/abstract/R6zT7ZGtpmkM

Corresponding Author
Hanifah Mulyani

Institutions
a) Science Education, Universitas Pendidikan Indonesia, Jl. Dr. Setiabudhi No. 229, Bandung 40154, Indonesia
b) Department of Chemistry, Universitas Pendidikan Indonesia, Jl. Dr. Setiabudhi No. 229, Bandung 40154, Indonesia
c) Department of Physics, Universitas Pendidikan Indonesia, Jl. Dr. Setiabudhi No. 229, Bandung 40154, Indonesia

Abstract
This article exposes how STEM-based learning is applied in science class to give students meaningful learning experience in the topic of Pascal Law. This study is motivated by the demand of 21st century skill which expect people to have 4C skills; critical thinking, creativity, collaboration, and communication. In this study, STEM-based learning is conducted at a private secondary school located in Bandung with 28 students of grade 8 as the subjects. Students are provided a problem related to the application of Pascal Law namely hydraulic bridge. They are challenged to design their own hydraulic bridge which can be lifted with maximum angle but in minimum time. A descriptive study is taken where all the data is obtained through direct observation and students- interview. Based on cognitive test, there is difference on pre-test and post-test score that resulting in the number of gain. Based on direct observation, none of students just sitting on their seat without activities and all are on collaboration to reach their goal. Students- interview indicates they enjoy learning process as it is their first experience accomplishing a project and it makes them more understand the concept through the real application. Overall of the study, STEM-based learning through hydraulic bridge project stimulates students to be able to think critically, to be creative, to collaborate, and to communicate.

Keywords
Pascal Law, hydraulic bridge, 4C skills, STEM-based learning

Topic
STEM Education

Link: https://ifory.id/abstract/XzPwYZNp8kDt

Corresponding Author
Adib Rifqi Setiawan

Institutions
Madrasah Tasywiquth Thullab Salafiyyah (TBS), KH. Turaichan Adjhuri No.23, Kudus, 59315, Indonesia

Abstract
Scientific literacy indicates that science has value outside scientific practice. This idea and reality is hardly modern, although we lose sight of this history. Unfortunately, PISA study at 1999-2015 and several works on that periods, has shows that common science teachings dont optimally guide students to achieve scientific literacy. As matter of fact, the answer to what is best teaching method to achieve scientific literacy has not been obtained yet. By proposing this work, we are consider that scientific approaches to teaching encompass a range of models as alternatives to guide students on achieve scientific literacy. This work constructs lesson plan for guide students on achieve scientific literacy in ecology learning, used R&D approach four-D model that reduced into three stages: define, design, and develop. It gained lesson plan, students worksheets, also scientific literacy test as well, that validated by experts and practitioners and reliability counted based on test. The final test of any teaching methods lies, of course, in implementation. The implementation of this work is yet to do.

Keywords
ecology learning, lesson plan, scientific literacy, scientific literacy test, students worksheets

Topic
Biology Education

Link: https://ifory.id/abstract/ybtvKgG6wmYn

Corresponding Author
Yulianti Yusal

Institutions
1Program Studi S3 Pendidikan IPA, Universitas Pendidikan Indonesia, Jl. Dr. Setiabudi No. 229, Bandung 40154, Indonesia
2Departemen Pendidikan Fisika, Universitas pendidikan Indonesia, Jl. Dr. Setiabudi No. 229, Bandung 40154, Indonesia
3Program Studi Pendidikan Ilmu Komputer, Universitas Pendidikan Indonesia, Jl. Dr. Setiabudi No. 229, Bandung 40154, Indonesia

Abstract
Abstract. The aims of this study is to produce test instrument items decision-problem solving skills related to the content of Heat Transfer. The construction of the test instrument is done using scafolding construction of test items which include stages: description of indicator of decision-problem solving skills, operationalization of indicators, construction of items scenarios, writing of test items, validation of test items, and test of reliability. Validation of test items is done through construct validation by two experts namely education evaluation experts and physics expert. Test of reliability was carried out by involving 35 students of physics education program at one of the universities in South Sulawesi province. The results of expert validation of the decision-problem solving test items stated that the constructed items had high validity, and the results of the test reliability showed that the constructed test instruments had a high degree of consistencypermanence. These results indicate that the product of decision-problem solving test instrument is worthy of being used for measuring decision-problem solving skills for students of Physics education programs who contract Basic Physics courses.

Keywords
Decision-Problem Solving Skills

Topic
Physics Education

Link: https://ifory.id/abstract/btNwTu8ZaEU7

Corresponding Author
YONI SUNARYO

Institutions
Departemen Pendidikan Matematika, Universitas Galuh, Jl. R.E Martadinata No. 150 Ciamis 46274 Jawa Barat, Indonesia
*sunaryoyoni[at]gmail.com

Abstract
This study aims to determine the improvement of student-s critical thinking abilities through a contextual approach with scaffolding. This study is a quasi-experiment in a senior high school in Ciamis, Indonesia. The sample is class XI taken by cluster random sampling technique to get the experimental class and the control class. The improvement of students mathematical critical thinking skills is obtained by doing pretest and posttest in the experimental class and the control class. The test used is a matter of mathematical critical thinking skills that were previously tested. The results showed that the comparison of the increase in student-s critical thinking abilities through a contextual approach was better than the students in the control class. The novelty of this research is the contextual approach that presents problems in the context of student life combined with scaffolding that adapts the zone of proximal development to students. These actions have an impact on improving the mathematical thinking ability of the majority of students in the high category.

Keywords
Contextual approach, scaffolding, mathematical critical thinking

Topic
Mathematics Education

Link: https://ifory.id/abstract/hnVLZcCHuKy2

Corresponding Author
Irfan Muhafidin

Institutions
Universitas Pendidikan Indonesia

Abstract
This study aims to analyze the completion of contextual math problems of deaf children based on Montague stages. this research is descriptive qualitative research. the data collection technique is in the form of tests, questionnaires, and interviews. The subject of this study was deaf class XI students in one of the Special Schools (SLB-B) in Kuningan, Indonesia. The results of this study are the students ability to solve contextual math problems from 7 students namely one student has the ability to solve contextual math questions in good categories, three students in sufficient categories, and three others in the low category.

Keywords
Contextual Mathematical Questions, Qualitative, Montague Stages

Topic
Mathematics Education

Link: https://ifory.id/abstract/PNcLD3HtTBnd

Corresponding Author
Yuyun Maryuningsih

Institutions
SPS UPI, Tadris Biologi IAIN Syekh Nurjati

Abstract
The use of the internet and smartphones in learning is binding because of its function which provides various learning resources. This study aims to determine the role of the internet as a learning resource for students on mastery of concepts, using a correlation design with correlational statistical tests to describe and measure the degree of association between two variables, namely the prospective duration of the online teacher and the acquisition of concepts. The subjects of this study were semester 5 (five) students majoring in biology education totaling 99 people at one of the universities in West Java. The study was conducted on Genetic learning in mobile learning with Gen 21 cs application in 3 (three) Genetic lecture activities. The results showed that online duration correlated with mastery of concepts. The highest correlation with a correlation value of 0.37 in the third activity, with the value of the level of significance of the category is low, which means that besides the duration of online there are other things that contribute to mastery of the concept of students

Keywords
Internet, smartphone, duration of online, mastery concepts

Topic
Biology Education

Link: https://ifory.id/abstract/LVkZzvrG3WUp

Corresponding Author
Aa Juhanda

Institutions
1) Department of Biology Education, Universitas Pendidikan Indonesia, Jl. Dr. Setia Budhi No. 229, Bandung 40154, Indonesia
2) Department of Biology Education, Universitas Muhammadiyah Sukabumi, Jl. R. Syamsudin SH. No. 50, Sukabumi, Indonesia


*aajuhanda[at]ummi.ac.id

Abstract
This study aims to determine the description of logical thinking and mastery of concepts, analyzing the relationship between the two owned by a number of prospective biology teachers in the vertebrate zoology practice. The research method used is a correlational descriptive method with a sample of 1 class which includes 26 prospective teachers of the Department of Biology Education, FKIP Universitas Muhammadiyah Sukabumi, 2017/2018 semester academic year using a purposive sampling technique. Data collection was conducted using the many as 10 standard questions of logical thinking ability (ToLT) and 20 concept mastery questions. Data analysis was carried out through a correlation test. The results showed that: 1) 35% of students had logical thinking at the transition stage with an average value of 3.0; 2) 31% of students show mastery of concepts with sufficient categories with an average value of 63; 3) There is a moderate correlation between logical thinking and the mastery of concept of prospective teachers with a correlation coefficient of 0.541. The combinatorial reasoning indicators have the highest correlation with the mastery of concepts possessed by students on the concept of in vertebrate with a significance of 0.928.

Keywords
logical thinking, formal reasoning mastery of concepts, vertebrate zoology practice course

Topic
Biology Education

Link: https://ifory.id/abstract/NtqZ7GMVfdBg

Corresponding Author
Rahmat Rizal

Institutions
a) Departemen Pendidikan fisika, Universitas Siliwangi
Jalan Siliwangi No 24, Tasikmalaya 46115, Indonesia
*rahmatrizal[at]unsil.ac.id
b) Sekolah Pascasarjana, Universitas Pendidikan Indonesia
Jalan Dr. Setiabudi No. 229, Bandung 40154, Indonesia

Abstract
The 21st century demands high quality human resources that can compete in global competition. The good quality human resources come from the good quality education process which train learner with skills to solve problems, to find alternative solutions in problem solving, and to think reflectively. These skills are included in creative thinking skills which is important to be developed for preservice physics teacher. This study aimed to identify the creative thinking skills of preservice physics teacher who have attended lectures of general physics, basic physics, and physics for school. By using the creative thinking skills test and interview, the researcher tried to explore four aspects of creative thinking consisting of fluency, flexibility, originality, and elaboration. The results of this study indicated the creative thinking skills of preservice physics teacher were in the low category with average score was 43.75 from a maximum scale of 100. The details of the average score of each aspect of creative thinking skills were expressed as follows fluency (57), flexibility (43), originality (34), and elaboration (41). The special lecture program is needed to improve the creative thinking skills of the preservice physics teachers to be able to train these skills to their students

Keywords
Creative Thinking Skills, Preservice Physics Teacher

Topic
Physics Education

Link: https://ifory.id/abstract/GAqy7tFa4pHj