bluuebunny/crossref_metadata_2025 huggingface dataset:
Pre-service teacher’s physics attitude towards physics laboratory in Aceh
Authors: Saputra H , Suhandi A , Setiawan A , Permanasari A
Published: May 2020

This research aims to find out the pre-service teacher’s physics attitude towards physics laboratory in one of the Universities in Aceh. The research method uses a quantitative descriptive approach. Data collection techniques used a scale questionnaire that was adapted from several previous researchers. The Subject of this study is 45 physics student prospective students who were taken from the semester, II, IV, and IV as subjects of the study. The data analysis technique is done by calculating the mean of each aspect and indicator and the independent t-test to see differences in attitudes based on gender. Overall, the results of the study showed a negative attitude towards physical practicum activities with the acquisition of a mean of 2.78. The statistical test results for normally distributed and homogeneous data show no significant differences (df. 43, sig. 0.90> 0.04) between the attitudes of male and female students. Negative attitudes towards physics laboratory are caused by the design of practicum verification that does not provide benefits to improve understanding, practice scientific inquiry skills, thinking skills, and solving physics problems. Efforts to improve attitudes toward physics practicum can be done through the design of practical activities oriented to humanistic psychology and constructivism by involving students actively investigating.
The role of science project based peer interaction on improving collaborative skills and physical problem solving: a mini review
Authors: Setyowidodo I , Jatmiko B , Susantini E , Handayani A D , Pramesti Y S
Published: May 2020

Problem solving and collaborative skills are part of the 21st century skills that students need to have. So it is necessary to develop a model of learning that can enhance those abilities. The methods of this study is literatur review. The literature about Problem Based Learning and the weakness of Problem Based Learning are discussed to find the Science Project Based Peer Interaction (SPBPI). This research technique uses a literature analysis. This study aims at efforts to improve student’s collaborative skills and problem solving through the learning of Science Project Based Peer Interaction (SPBPI). The results of this study will later be implemented in learning to improve collaborative skills and student problem solving through learning ScienceProject-Based Peer Interaction (SPBPI). By the implementation of this Science Project ScienceProject-Based Peer Interaction (SPBPI), student’s collaborative skill and problem soling ability will enhance.
Practicality of physics module based on contextual learning accompanied by multiple representations in physics learning on senior high school
Authors: Mahardika I K , Delftana R E , Rasagama I G , Suprianto  , Rasyid A N , Sugiartana I W
Published: May 2020

The purpose of this research was to describe the practicality of a physics module based on contextual learning accompanied by multiple representations. Practicality of this module could be determined from observation of learning implementation using this module and student’s response after using this module. This research used development model of 4-D (define, design, develop, and disseminate). Practicality was determined to develop a step and disseminate steps. However, practicality could be determined after the module was valid. Based on the results of logic validity and empiric validity data analysis, the module could be said to be very valid with a percentage of 86.88% and 89.96% respectively. Limited trial and class trial in develop step was done in SMA Nuris Jember and disseminate trial was done in MA Nuris Jember. Based on observation of learning implementation using this module, it could be known that this module was very practical with an average percentage of 80.46%. Based on student’s responses after using the module, it could be known that this module was very practical with an average percentage of 95.22%. Therefore, the physics module based on contextual learning that accompanied by multiple representations was very practical to use in physics learning on senior high school.
Effectiveness of edmodo to improve senior high school students’ creative thinking skills in momentum and impulse topics
Authors: Hadjarati Y A , Arota A S , Mursalin  , Odja A H
Published: May 2020

The study was aimed to investigate the effectiveness of e-learning-based innovative learning set employing Edmodo to improve the senior high school student’s creative thinking in momentum and impulse learning material. It applied an experimental method with one group pretest-posttest design. The study was conducted in Integrated Senior High School Wira Bhakti Gorontalo by having 20 students of the class of X IPA 2 as respondents. It was a research and development type using research stages by Jerold F. Kemp consisting of determining general instructional goal, analyzing student’s characteristics, determining specific instructional goals, determining learning materials, determining the pre-test, determining teaching and learning strategies, media, and sources, coordinating the supporting facilities, and evaluating (post-test). The developed learning set was syllabus, lesson plan, learning material, student’s worksheet, and test of creative thinking ability as well as an appropriate assessment instrument. Data analysis result revealed that there was an improvement of student’s creative thinking ability proved by the average value of N-Gain for 0,70 in the high category. Based on the data analysis, it can be concluded that an e-learning-based innovative learning set employing Edmodo was effective to improve the senior high school student’s creative thinking in momentum and impulse learning material.
Effectiveness of student worksheets on environmental project-based e-learning model in building student character
Authors: Sarah I , Rani S
Published: May 2020

Education world through learning in the classroom has a huge influence in building the values of student characters. Mathematics as a subject is given at all levels of education and has more time allocated each week than other subject has the opportunity to build student character value. This study aims to develop mathematics student worksheets and their effectiveness in the context of student character. This type of research is research with design and development. This research consists of three stages, namely Self Evaluation, Prototyping, and Field Test. The initial step of the research is to use various sources in the field and literature review. Product design is done by preparing student worksheets and student character observation sheets. Products that have been designed are then developed by means of judgment, trials and revisions. From the results of the development then a student worksheets hypothetical product is obtained and will be tested for its effectiveness. Effectiveness testing is carried out in the use of trial activities through the implementation of student worksheets hypothetical product. The results showed that the hypothetical student worksheets was effective in establishing honest, maos, mamaos, tanginas, someah, sauyunan, and discipline characters.
Attitude towards statistics among pre-service teachers of institute of teacher education
Authors: Mustam A A , Adnan M , Johnny J , Setambah M A B
Published: May 2020

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).
Students mathematical communication ability in geometry
Authors: Pangaribuan T R , Martadiputra B A P , Usdiyana D , Sihotang R O
Published: May 2020

The aim of this study is to describe the communication ability of grade 8 students in Euclidean solid space topics based on Prior Mathematical Ability (PMA). The subject of this study consisted of 30 students. This research approach was quantitative with a descriptive method. Data collected by the test which developed based on indicators of mathematical communication. The indicators of mathematical communication used in this study are: (1) expressing a mathematical idea to the form of image; (2) expressing real objects or image to the form of mathematics; (3) state daily events in a language or mathematical symbol; (4) explain ideas, situations, and pictures in writing to mathematical form. The results showed that the average percentage of communication ability of all students was 47.68%. While the average percentage of students achieving in a high category was 62.5%. That was above the overall average of students. The average percentage of student achievement in a moderate category was 45.54%, and the percentage of students achievement in a low category was 45.00%.
Relationship between intelligence quotient, gender, learning outcomes and geometry thinking levels
Authors: Sudihartinih E , Wahyudin
Published: May 2020

The purpose of this study was to obtain an overview of the relationship and influence of IQ, gender, and learning outcomes on the geometric thinking levels. This research was designed with a correlational model based on 32 students randomly selected from a mathematics education department at one of the universities in Indonesia. The test instrument used was “Van Hiele Geometry Test” which was compiled on the CDASSG Project. The findings in the study are that there is a correlation between IQ, gender, and learning outcomes with a geometric thinking levels but not significant. But there is a significant influence IQ, gender, and learning outcomes on the geometric thinking levels.
Logical thinking skills of primary school teachers
Authors: Ristiana M G , Suryadi D , Cahya E
Published: May 2020

Logical thinking is an ability that everyone needs, without exception. Someone who has good logical thinking will be able to finish their problem with the right strategy. As a teacher, this ability is very important, especially if they teach in primary school. The existing phenomenon in mathematics lessons is they always teach just procedural work, however, a teacher shouldn’t be like that. A teacher that couldn’t explain a mathematics concept can be said they don’t have sufficient logical thinking skills. The aim of this research is to prove whether that phenomenon is right or not. In order to do so, we used descriptive qualitative methods by took some active primary school teachers then provided some simple mathematics questions to see whether they can explain a mathematical concept or they just use a procedural work. The result shows that most of the teachers used procedural work to answer the questions. This means that they do not have sufficient logical thinking skills. So, the phenomenon right exists. Therefore, to reduce this phenomenon a teacher should understand well the concept that they will teach, especially in mathematics lessons.
Preliminary analysis of problem-based statistical learning media
Authors: Hamdunah  , Handayani S , Jufri L H
Published: May 2020

Learning media is one of the important things to improve the quality of learning. Learning media are developed in accordance with the student’s needs so that a learning can be carried out better. Nowadays, there is no learning media for statistics course that is in accordance with the needs of Informatics Education study program students at STKIP PGRI in west Sumatra. Based on the background of the problem, the purpose of this study was to analyze the students’ need on statistics courses’ learning media. It was a research and development using the design of Plomp development (Preliminary research, prototyping phase, and assessment phase). The stages carried out were limited to the preliminary research stage. At this stage, the process was conducted by analyzing lesson plan, syllabus, learning resources and student needs. Particularly, the data regarding student needs were obtained through questionnaire and an interview with students and their peers, as well as analyzing students’ characteristics. Questionnaire and interview data were analyzed qualitatively. The results of the study show that the students need a problem-based learning media for the statistics course.
Analysis of students’ mathematical reflective thinking skills and habits of mind
Authors: Martyaningrum I D , Prabawanto S
Published: May 2020

The purpose of the study is to describe students’ mathematical reflective thinking skills and habits of mind. The method in this study was qualitative with phenomenological approach. The data were collected by using mathematical reflective thinking written test, habits of mind scale, and interview. The subjects were two students of grade-ten of one high school in Kebumen, Central Java. The study was conducted as long as one year, especially in observing student’s habits of mind. The results show that the first student can solve all of phases of mathematical reflective thinking skill, namely reacting, elaborating, and contemplating. The other student can solve only two phases of mathematical reflective thinking skill, namely reacting and elaborating. Moreover, the first student is better than the second student in three habits of mind indicators, namely persisting, thinking and communicating with clarity and precision, and then gathering data through all senses.
Rounding-augmented reality book and smartphone for deaf students in achieving basic competence
Authors: Hasanah A , Kusumah Y S , Rahmi K
Published: May 2020

Deaf students’ hearing problem results in their mastery of language and mathematics lower than hearing students. Learning the topic of rounding is difficult for deaf students because it requires a good understanding of language and a true perception in math concepts, in which are abstract in nature. Learning concepts needs a special strategy for this type of students, as generally mathematics is difficult to be translated and communicated by sign language. This specificity forces them to possess unique behavior in understanding everything through visual power. This paper discusses a study of the creation of a book and smartphone applications as devices based on augmented-reality (AR) software on the topic of rounding accompanied by rich visualization to facilitate deaf students in achieving mathematical basic competencies. This study aims to describe and reveal the validity and the effectiveness of the designed devices through their implementation in a classroom. The research and development method refer to ADDIE which consisting of five stages, namely: analysis, design, development, implementation, and evaluation. The results of this study show that the AR-Book and the AR-Smartphone application are valid used by deaf students and both devices are effective in achieving their mathematical basic competencies.
Designing symbol sense tasks: the case of quadratic equations
Authors: Jupri A , Sispiyati R
Published: May 2020

Symbol sense refers to an ability to give meaning and to see important structures to symbols, expressions and formulas. Designing algebra tasks for assessing student symbol sense ability is therefore important. This study aims to design types of tasks based on the theory of symbol sense for the topic of quadratic and related equations. To do this, first, we conducted a literature study on the theory of symbol sense. Second, we designed tasks based on characteristics of symbol sense and provided possible strategies to solve the tasks. Third, we validated the designed tasks to seven mathematics and mathematics education experts. The results included: (1) Three types of symbol sense tasks and predictions of strategies to solve the tasks; (2) Experts comments and suggestions for improving the quality of the tasks. We conclude that the designed tasks meet the criteria of the symbol sense characteristics and can further be used for research after some minor revisions.
Enhancement of reasoning skills of 7th grade students using Malcolm’s modeling based on KWL thinking strategy
Authors: Johan A , Suyitno A , Mashuri  , Sayekti I
Published: May 2020

One of the skills that need to be implemented in learning is reasoning skill and Malcolm’s Modelling is one of learning models to improve reasoning skills. This research aims to investigate students’ problem solving skills. The students were taught using Malcolm’s Modelling that was based on KWL thinking strategy to achieve the minimum criteria scores in the scientific notation. The participants of this study were 705 seventh grade students of Tainan Municipal Jincheng Junior High School Taiwan that were selected in random sampling techniques. The data were collected and analyzed using SPSS and Microsoft Excel® for t-test and proportion test. The results showed that the reasoning skills of students was classified as good and sufficient.
Students’ algebraic thinking: a study of mathematical modelling competencies
Authors: Fakhrunisa F , Hasanah A
Published: May 2020

Several components shows that the process of algebraic thinking on students in solving problems. One of these components is the process of using algebra as a tool for doing mathematical modelling. This study aims to reveal how the students’ competency in making mathematical modelling for solving an algebraic problem. The descriptive qualitative study design was used to obtain an overview of the mathematical modelling competencies of nine students (15-16 years old) in Pekanbaru, Riau Province. Each participant received a test that contains an algebraic problem. The results of this study show that when students do mathematical modelling there are several errors as follows: (1) failure in making suppositions for the problem and simplifying the given situation; (2) failure in recognizing quantities that influence the given situation, to identify the key variable; (3) failure in construct relation between variable; and (4) failure in solving question within mathematical modelling.
Analysis of elementary school students’ ability on mathematical communication and mathematical representation
Authors: Fauziyah R R , Jupri A
Published: May 2020

This research is motivated by the importance of communication ability and mathematical representations of elementary school students as part of the standard process that students must have towards mathematical learning. The purpose of this study was to determine how far the communication and mathematical representations of students have. The research design used was descriptive qualitative. This research was conducted on 24 students of the fifth-grade elementary school in Bandung by providing communication skills and mathematical representation tests and interviews. The results of the study showed the low communication skills and mathematical representations of students in terms of the test instruments given to students. Most students find it difficult to conclude because of errors in understanding the meaning of mathematical questions in real-life contexts. Based on these findings learning activities must be developed to achieve the expected indicators so that communication ability and mathematical representations of students can be improved.
The factors that influence students’ solution related to inverse proportion problems
Authors: Alam A F P , Suhendra  , Prabawanto S
Published: May 2020

This study aims to explain how factors that influence students that their answer was correct mathematically and plausible on the problem of the inverse proportion concept. The subjects of this study were four students of grade 7th, a junior high school in Bandung. This research used the qualitative method with the triangulation for collecting data in the forms of written test, interview, and documentation. The result of this study analyzed by using relevant theories. This implies the need for analysis of written tests and students interview as evaluation to improve learning. During the study, we found factors that influence students in to find their answers correct mathematically and plausible. These factors include students’ understanding related to inverse proportion concept, understanding of students related to calculating operations, understanding of students related to reading and forming tables, understanding of students in terms of graphs, and understanding of mathematics equation. Based on the results of this study concluded that students could understand the questions with plausible. However, these factors affect students in problem-solving of the inverse proportion concept so that students’ difficulties in finding the right answers mathematically.
The qualitative effect of problem-based learning model toward students’ mathematical imitative and creative reasoning
Authors: Permatasari N , Jupri A , Darhim
Published: May 2020

Reasoning is one of the abilities needed in solving mathematical problems. Based on Lithner perspective, reasoning divided into imitative reasoning and creative reasoning. There are three indicators for each reasoning, that are plausibility, mathematical foundation, novelty for creative reasoning aspect and imitation for imitative reasoning aspect. The aim of this research is to analyze the qualitative effect of problem-based learning model toward students’ mathematical imitative and creative reasoning. In order to do so, we used descriptive qualitative methods by taking eighth-grade students (around thirteen to fourteen years old) in one of the Junior High School in Tasikmalaya. We used the data from a written test, observation and interviews. The results revealed that problem-based learning model suitable for students who have dominantly mathematical creative reasoning abilities. The characteristics of students who have dominantly mathematical imitative reasoning abilities prefer to be told rather than finding out. Based on the results, we conclude that each student has a different learning style according to his abilities.
Use of metacognitive regulation strategies to increase student academic achievement in microbiology course
Authors: Erlin E , Rahmat A , Rejeki S
Published: May 2020

The purpose of this research was to examine the influence of metacognitive regulation strategy to improve students’ achievement in microbiology learning. The method used was Quasi-Experimental. Participants of this study were 27 students from Biology Education in a university in West Java. There were two classes used in this research, namely the class using metacognitive regulation strategies as an experimental class consisting of 14 students and the non-metacognitive regulation strategies class as a control consisting of 13 students. In the experimental class, discussion was assisted with questions about subject matters. The instrument was used consist of the concept mastery test and self-reflection questionnaire. Data were analyzed by Analysis of Variance. The results of this research showed that there were differences in student achievement between metacognitive regulation and non-metacognitive regulation strategies. Students who learned with metacognitive regulation strategies was obtained high moderate criteria score (g = 0.59), while students who learned with non-metacognitive regulation strategies were obtained low of criteria score (g = 0.26). Study on self-reflection after carrying out the test obtained the following results: aspects related to the use of learning resources (21%), time management (29%), learning behavior (36%), attending and concentration in learning (14%). The implementation of the metacognitive regulation strategy was significantly effective to improve academic achievement in a microbiology course, so this strategy is an innovation in learning.
The consistency of the students’ arguments in the socioscientific issue about cloning on extinct animals, animal for sacrifice (Qurban) purposes and human
Authors: Alindra A L , Widodo A , Rahman T
Published: May 2020

Argumentation plays an important role in the development of science which is not just finding and presenting facts, but building arguments and considering them, and debating various explanations about phenomena. The research aimed to capture the consistency of students’ argumentation on issues of cloning. Students were chosen purposively with the subject of 170 high school students from three high schools in Bandung City, West Java, Indonesia. This research uses a case study approach with a descriptive analysis to analyze student test results of argumentation. The consistency of argument consists of claims and reasons itself. The result shows the pattern of agreeing and disagree about cloning in 3 topics; 1) extinct animals, 2) animal for Qurban purposes, 3) humans. The higher consistency showed disagree in topics 2&3 about 56.47% and consistency of reason for each topic are 1) science 83.5%, 2) religion 57.6% and 3) religion 40%. Then, the consistency of agreeing for all topics is 2.35% and disagree is 14.71%. This provides that, consistency of students argumentation on cloning issue is greatly influenced by science, religion, and social norms. It needs to be investigated further to uncover the relationship of arguments consistency with socio-cultural of students in schools.
Development of teaching material based on multiple intelligences to improve multiple intelligences and higher order thinking skills of students in vertebrata material
Authors: Sholiah U , Saefudin  , Priyandoko D
Published: May 2020

This research was development research that used ADDIE design (analyze, design, develop, implementation, and evaluate). The study aimed to develop teaching material based on multiple intelligences to improve multiple intelligence and higher-order thinking skills. The characteristics of teaching material developed the insertion of multiple intelligences, namely linguistic, logical-mathematical, visual-spatial, kinesthetic, musical, interpersonal, intrapersonal, and naturalist intelligence. The sample research was students of class X in one of the high schools in Juntinyuat-Indramayu. The results showed that: 1) the feasibility of teaching material based on multiple intelligences have an average score of 2.75 with proper status; 2) the results of the readability test of teaching material showed a reading rate of 82.1% in the high category; 3) interpersonal intelligence was the dominant intelligence by students in both classes, the improvement of multiple intelligences in the moderate category in the treatment class and the low category in the comparison class; 4) improvement of higher-order thinking skills in the moderate category in the treatment class and the low category in the comparison class; 5) Positive student responses to teaching material are 80.8% with strong categories.
Possibilities of dynamic assessment to enhance students’ understanding on abstract science concepts: a systematic review
Authors: Puspitarini D , Muzzazinah  , Ramli M , Sudarisman S
Published: May 2020

Dynamic assessments (DA) had been widely used in language and mathematics learning, but its use in science learning is still limited. One difficulty faced by students in science learning is the sheer number of abstract concepts. This literature review was aimed to find out the prospect of DA in science learning to improve students’ understanding of abstract scientific concepts. This study analyzed various learning topics used with DA, the types of DA instruments, and procedures to train students’ conceptual understanding. The PRISMA was used as the research method. The results showed the DA has been used in learning ecology, biology, atmosphere and water, evolution, and classification, photosynthesis, and weather and climate. It showed DA can improve students’ conceptual understanding. Implementing DA in the learning process can be done by providing additional explanations or training to students. The types of instruments for DA were varied, such as tests, questionnaires, and interviews with semi-structural forms. We recommend the usage of DA to improve student understanding regarding abstract science concepts, especially biology.
Fostering students’ process skills through inquiry-based science learning implementation
Authors: Nunaki J H , Siagian S I R , Nusantari E , Kandowangko N Y , Damopolii I
Published: May 2020

Science process skills are mostly researched in previous studies, but specifically for students in Papua, these skills have not become the main focus to be fostering. Inquiry learning is present as alternative learning to train students’ process skills. The research aims to foster the student process skill through inquiry science learning implementation. The research was a quasi-experimental method. Non-equivalent control group design was used. Data was collected using process skill tests. N-gain and independent t-test were used for data analysis. It was revealed that the process skill of student in the inquiry-based learning class was better compared to students in the conventional class (p <0.05). Science inquiry-based learning is better fostering science process skills indicator, that is observing, formulate a problem, formulate a hypothesis, and communicating. It can be concluded that for fostering student process skills, inquiry-based science learning is the right choice. it is better compared with conventional learning.
The development of marine resources investigative practicum and its effect on creative thinking skills and life skill of vocational school student
Authors: Kamalia I N , Anggraeni S , Adisendjaja Y H
Published: May 2020

The abundant marine resources in Indramayu Regency have not been optimally utilized by the community. Through learning at the Maritime Affairs Ministry, management of marine resources makes it possible to develop. The development of investigative practicum is the development of practical learning design using the 3D method which consists of 3 stages: define, design, develop. The stages of development start from determining the object of research, making a practical investigation design, testing the steps and instruments of investigative practical activities, and testing the effect and effectiveness of investigative practicum design on students’ creative thinking and life skills on a quasy experiment through pre test and post test Non-Equivalent Control Group Design. The research subject was determined by purposive sampling. 40 students from the 10th grade of the Fisheries Product Processing Agribusiness (APHP) study program will be selected to study biotechnology at the Maritime Partnership Vocational School. Data were collected using investigative worksheets, investigative observation sheets, creative thinking skills instruments, life skill tests, questionnaires and interviews to explore students’ responses regarding investigative practicum. The results of this study are the design of the investigative practicum developed that was tested with result of independent sample T-test on the skills to think creatively and life skill of the experimental class differed significantly from the control class. So it can be concluded that the investigative practicum developed has an effect on the skills to think creatively and life skills between the experimental class and the control class. Effectiveness is shown by students’ responses of 60% positive towards the application of investigative practicum learning and included in the good category.
The feasibility and readability test of stem-based integrated science teaching book model themed “blood as transportation system on our body”
Authors: Susetyadi A D , Permanasari A , Riandi R
Published: May 2020

This study aims to examine the feasibility and the readability tests of STEM-Based Integrated Science Teaching Book Model Themed “Blood as Transportation System on Our Body”. The research was done on using quantitative descriptive methods. The subjects were 60 8th Junior High School Students and 8 Science Junior High School Teachers. The feasibility tests were done based on BSNP assessment guidelines. The research showed that the qualities of science teaching book are feasible to use as resources and guidance for students. It was also found that the ease of understanding and reading makes this book acceptable and liked by students.
Identification of student’s misconceptions in chemical bonding topic using four-tier diagnostic test
Authors: Mahmudah A , Nahadi  , Firman H
Published: May 2020

The purpose of this study was to identify misconceptions by measuring the level of students understanding in chemical bonding topic using four-tier multiple choice diagnostic test. The research method was descriptive and involved 77 students of senior high school in South Tangerang. The results shows that the overall the students misconception on chemical bonding topic was in low category (15.14%). The level of confidence in this study was highly significant because it can provide information about student’s conceptual understanding. Students encountered the most misconceptions when determining bonds in microscopic scale. As an evidence, misconceptions in the concept of determining microscopic ionic and covalent bonds results to medium category (41.56%), and metal bonds with medium category (37.66%). This student’s misconception was due to the limited conceptual knowledge and low visual-spatial abilities.
Revealing students’ problems in learning synthesis organic
Authors: Amsad L N , Liliasari S , Kadarohman A , Sardjono R E
Published: May 2020

Students always show problems when learning about synthesis organic. Therefore, this study aims to reveal all students’ problems in synthesis organic chemistry. The participants of this research were 16 students of chemistry education in one of state university in Papua, Indonesia. This research was a descriptive research of which the students are given learning that concern to the concepts of the synthesis of organic compounds. The result shows that the students’ highest problem was in the concepts of stereochemistry product of organic compound, while the lowest one was in the concepts of the groups’functionality. Based on this study, the lecturer have to give a clearly explanations about the concepts of reagent, required condition, and related stereochemistry product.
Identification of senior high school students’ preconception on artificial muscle context in chemistry learning
Authors: Wijaya K , Hernani  , Yuliani G
Published: May 2020

This research aims to identify students’ pre-conceptions on artificial muscles context as a basis for developing a didactic design in artificial muscle learning, related to chemical contents studied in secondary school. This study employed a descriptive method that was presented quantitatively and qualitatively. The instrument used in this study was a test in the form of essay questions consisted of 7 discourses about artificial muscles. The participants of this study were 25 students from a secondary school in Bandung, West Java. The results of data analysis indicated that 76% of students fell in the category of “low understanding”. The analysis of students’ preconception was used and implemented in the development of a didactic design aiming at connecting artificial muscle context with the application of science and technology in chemistry learning at secondary schools.
Conception, threshold concepts and troublesome knowledge in chemical reactions topic
Authors: Ulfa A M , Wiji W , Mulyani S
Published: May 2020

This study aims to analyze the conception, threshold concept, and troublesome knowledge in chemical reaction topic. This study uses qualitative methods, document analyses, as well as interviews with chemistry teachers to obtain information about threshold concepts and troublesome knowledge. From the results of the analysis of several journals obtained that there were still many misconceptions encountered when students study chemical reactions. While the results of the interview, threshol concept in chemical reaction consisted of mixtures, physical and chemical properties, material changes, concepts of protons and electrons, electron configurations, chemical bonds, intermolecular forces, attractive forces between charges, compound nomenclatures, chemical formulas, and Lavoisier’s laws. While troublesome knowledge includes complexity of particles involved, complexity of interactions that may occur, complexity of applying Lavoisier’s Law, and language used.
The conception of pre-service chemistry teachers on chemistry contents in the context of conductive glass
Authors: Annisa D A , Hernani  , Khoerunnisa F
Published: May 2020

The purpose of this study is to obtain the conception of pre-service chemistry teachers related to chemical contents in the context of conductive glass investigated through didactic design. Descriptive research method was chosen as the method in this study and the analysis was carried out quantitatively and qualitatively with 27 participants of the fourth semester at one of the universities in Bandar Lampung. The instrument used were 11 essay questions covered in 7 different discourses. The obtained results will be used as preference to make didactical design in the context of conductive glass. Based on student answers, it is known that 70.4% still have a low understanding on resistivity and semiconductor concepts. The low level of understanding shows that there are still many students who do not understand the chemical contents as basic knowledge for making didactic design to teach chemical contents in the context of conductive glass.
Students empowerment in chemistry learning through the integration of dilemma teaching pedagogy in plastic waste
Authors: Rahmawati Y , Agustin M A , Sihombing S N , Mardiah A , Iriyadi D
Published: May 2020

The research aimed to engage students in reflecting their values through the integration of dilemma teaching pedagogy in chemistry classroom. Dilemmas stories have been engaged students in values awareness through critical and dilemma thinking in the issues of plastic waste. The research was conducted in four secondary schools in Indonesia with 457 students, with depth case study in two classrooms of year 12. The mixed-method study as a methodology provided different perspectives to understand the participants. The survey as quantitative data collection used The Constructivist Values Learning Environment Survey (CVLES), followed by qualitative data through semi-structured interviews, and classroom observations. The CVLES obtained perceptions of student engagement with the story, the teacher’s supportive role, critical thinking skill development, and students’ learning to listen actively and think about the chemistry learning. The results show that the students and the researcher engaged in critical reflection on their values, collaboration with others, on their roles in participating in environmental education, social issues, and in deep chemistry learning. In addition, the dilemmas stories play important roles in developing character education which is relevant to new Indonesia curricula.
Electrochemical learning with a modified writing to teach (WtT) approach to improve the students’ concept mastery
Authors: Nurdiyanti D , Permanasari A , Mulyani S , Hernani
Published: May 2020

Concept mastery is considered as a requirement that must be possessed by chemistry teacher candidates to teach the students about chemical concepts. The aim of this study is to improve the students’ concept mastery in electrochemistry through school chemistry subject by conducting a modified WtT approach. The study involves twenty students in the fifth semester who commit the subject of school chemistry. The data are obtained through test of concept mastery to obtain information about the concept of mastery of before and after learning. Then, the data are carried out from interview to obtain information about the students’ responses in related to the implementation of WtT approach in the learning process. The data analysis is accomplished through the N-Gain test to discover the improvement of the implementation of concept mastery and effect size test for paired t-test to determine its effectiveness. Meanwhile, the results of interview are utilized to strengthen the data of concept mastery. The results of the present study reveal that there is an average improvement of the students’ concept mastery. Furthermore, the result of effect size test shows that the WtT approach is considered to be effective to improve the students’ concept mastery in the average level.
Profile of prospective primary school teachers’ mental model in the subject matter of change
Authors: Hermita N , Alpusari M , Noviana E , Kurniaman O , Islami N
Published: May 2020

This study aimed to obtain an overview of the profile of the mental model (MM) of prospective primary school teachers in the concepts of change in the state of matter. The mental model (MM) categories reviewed in this study includes scientific MM, synthetic MM, and initial MM. A descriptive quantitative method was selected in this study. Among 30 of prospective primary school teachers at one university in Riau Province who had attended the science course were involved in this study. Lectures on the essential concept of science are carried out by lecturers using traditional (teacher centered). A test was used to collect the information of conceptual understanding, which is consisting of three question fragments (explanatory and depictions responses). The results demonstrated that the mental model profile of primary school teachers on phase transition (melting phenomena) are: scientific MM (0%), synthetic MM (27%) andiInitial MM (73%); related to the concept of freezing are: Scientific MM (0%), Synthetic MM (20%), and Initial MM (80%); related to the concept of evaporate are: Scientific MM (0%), Synthetic MM (23%) and Initial MM (77%); and related to the concepts of condense are: Scientific MM (0%), Synthetic MM (17%) and initial MM (83%). These results indicated that lectures on the basic concept of science carried out by lecturers had not facilitated the achievement of a scientific mental model for prospective primary school teachers.
Profile of the ability of teachers in planning and carrying out 4C skills-oriented science teaching
Authors: Setiawati I , Rusman  , Djohar A
Published: May 2020

The aim of this research is to get the depiction of the ability of science teachers in planning and carrying out 4C (critical, creative, collaborative and communication) skills-oriented science teaching. The research method used is quantitative descriptive. The subjects of the research were 12 science teachers (7 female and 5 male) from several junior high schools in West Bandung district of West Java province. The instrument used for data collection is the teaching plan assessment rubric and the assessment rubric of real teaching that was adapted from the assessment rubric used for the performance test of the teacher profession program. Data analysis was carried out by reviewing; gender, teaching experience and teacher education background. The results showed that: 1) most of science teachers who were the subjects of the research had low ability to plan and implement of 4C skills-oriented science teaching, 2) there was no gender bias, no teaching experience bias and no teacher’s educational background bias in the ability to planing and carrying out of 4C-oriented science teaching. The low ability of the science teachers indicates the need to increase teacher competency through relevant training programs.
Student’s research skills in middle school of Kuningan district
Authors: Nurlaelah I , Widodo A , Redjeki S , Rahman T
Published: May 2020

This exploratory study aimed to analyze the research skills and to explore the authentic research abilities that can support students’ research skills. The study engaged sixty-eight students of science class from two schools in Kuningan district. The data was collected through research skills tests, consist of 11 items of essay questions including seven components of research skills: 1) Understanding phenomena and identifying problems, 2) formulating problems, 3) composing hypotheses, 4) making research designs, 5) implementing experiments and collecting data, 6) analysing data, and 7) making conclusions. The results revealed that the authentic research abilities of students based on, the seven components of research skills were very lacking. The average score of the rubric was 1, it meant that the students were less skilled. The largest percentage of the average test score in both of schools showed that they were in very less category, 72% (first school) and 79% (second school). The analysis on seven components of student research skills was still in the range of the score 0-1.
Pedagogical content knowledge (PCK) of science teachers based on content representation (CoRe)
Authors: Yanti Meili , Riandi  , Suhandi A
Published: May 2020

Pedagogical Content Knowledge (PCK) has been one of the chief frameworks that widely employed by educators and researchers in order to examine and develop teachers knowledge of integrating content into the right pedagogy. In this article authors purposes to describe PCK of science teachers using an instrument developed by John Loughran, well known as Content Representation (CoRe). A core is constructed by asking teachers to identify “the big ideas” associated with teaching a topic to students. Participants were science teachers from a secondary school and have different ages from 21 until 34 years old. They were completed Content Representation to gain the data about their ability in PCK. Our results reveal that the teachers have different knowledge of PCK. Teachers knowledge of their PCK is related to working experience and professional development.
Environmental literacy profile of 7th grade junior high school students in science learning on global warming subject
Authors: Maulaa I , Hamidah I , Permanasari A
Published: May 2020

This paper examined environmental literacy which has become a global issue in the world. This study aimed at analysing the environmental literacy profile of junior high school students in one of junior high schools in Bandung, West Java Indonesia. The method used was pre-experimental method employing scientific descriptions that were explored descriptively. The population and sample were 96 students in the 7th-grade of junior high school. Environmental literacy was measured by 30 multiple choice questions covering aspects of knowledge, environmental affective, cognitive skills, and behaviour. An environmental literacy test was developed adopting the Middle Schools Environmental Survey/Instrument (MSELS/I) test questions used by NELA. The results indicated that the environmental literacy of the students was classified as the medium category. The scores obtained by students for each aspect were not significantly different. Knowledge aspects, affective environment, cognitive skills, and behaviour score of 53.28, 47,52, 56.64 and 49.17, respectively. Based on the achievement level of each group of students, environmental literacy obtained for the high, medium and low categories were 11%, 57%, and 32%, respectively. Based on these results, it can be concluded that teacher efforts to make learning better, more innovative, and oriented towards environmental literacy were highly required.