bluuebunny/crossref_metadata_2025 huggingface dataset:
Conceptual progression of K-10 student on the free-falling objects acceleration concept as an effect of E-CDCCText
Authors: Setiono I A , Suhandi A , Liliawati W
Published: March 2021

The purpose of this study was to obtain the impact of using Electronic Conceptual Development Conceptual Change Text (E-CDCCText) related to the concept of acceleration of free-falling objects on K-10 students. E-CDCCText consists of seven parts. The third part is a conceptual development text. The fourth, fifth, and sixth parts are conceptual change text added with cognitive conflict and scientific explanation. The method used is pre-experiment with one group of three test designs. Research subjects were 32 K-10 students whose average age is 14-15 years old, consisting of 20 female and 12 male students in Yogyakarta. The research subjects were selected by random sampling techniques for the class. Data is collected based on parallel conception tests in the four-tier test format on the free-falling objects acceleration concept. These results indicate that E-CDCCText has high effectiveness in remediating misconceptions. In general, the use of E-CDCCText has been effective in facilitating the conceptual progression of students in the type of well progression (75%). The use of E-CDCCText does not cause gender bias between female and male students. E-CDCCText has been effective in facilitating the conceptual progression of female and male students in the type of well progression (75%). E-CDCCText can effectively use in conceptual development and conceptual changes activities on the free-falling objects acceleration concept.
Technological pedagogical and content knowledge (TPACK) of prospective physics teachers in distance learning: self-perception and video observation
Authors: Efwinda S , Mannan M N
Published: March 2021

Learning from home in the Covid-19 Pandemic period posed a variety of challenges both for teachers and for students. The ability of teachers to utilize technology in learning is very necessary so that distance learning can run effectively. This study aims to determine the self-perceptions and skills of prospective physics teachers in the Technological Pedagogical and Content Knowledge Knowledge (TPACK) framework to support distance learning. This research is a quantitative research. Self-Perceptions were screened using a questionnaire, 128 research subjects were Physics education students in Samarinda, Indonesia. Then, the skills of prospective physics teachers in the TPACK framework to support distance learning were sought through video observations with 30 research subjects from 128 previous students. Based on data analysis, self-perceptions of prospective physics teachers within the TPACK framework in sufficient category. There is a significant difference between the self-perception of prospective physics teachers who have taken computer training and have never taken computer training. The skills of prospective physics teachers in the TPACK framework are also in the sufficient category. Based on this, educational institutions need to increase learning and training for prospective physics teachers to integrate technology in learning so that their TPACK skills can be improved.
Profile of early ICT capabilities of prospective physics teachers through basic physics learning in Makassar
Authors: Ma’ruf M , Setiawan A , Suhandi A , Siahaan P
Published: March 2021

This study identifies the initial ICT skills and basic competencies of learning technology for students in learning basic physics. This research was conducted in three different universities in Makassar Indonesia. The research instrument is a test instrument for the basic competency test of learning technology, and a non-test instrument in the form of a learning technology capability questionnaire. The results showed that the average percentage of student learning technology competence in three tertiary institutions in Makassar was level 1 with a percentage of 94.39%; level 2 57.50%; level 3 78.17%; level 4 67.77%; level 5 76.03%; and level 6 67.55%. This shows that the competency of student learning technology for level 1 is in the very good category, and levels 3 and 5 are in the good category. While at level 4, and 6 are in the medium category, while at level 2 it is still in the bad category. The initial ability of learning technology on the attitude aspect is in the high category while the social emotional aspect is also in the moderate category. This shows that the use of learning technology really needs special attention to the social emotional aspects, especially ethics. Therefore, it can be said that the relationship between the initial ability of student learning technology and its use as a medium for learning basic physics is very close. The ability of good learning technology will have the potential for the use of good learning technology.
Student visualization in solving geometry problem: the case of reflection
Authors: Yurmalia D , Herman T
Published: March 2021

Visualization is a mental act representing a visual information. In solving geometry problem, we need visualization to identify and illustrate the information. This study aimed to analyse student visualization in solving the reflection problems. We studied a female high school athlete at grade eleven. There were three steps in this study. First, we designed two reflection problems. Next, we assessed and interviewed her by semi structure interviewed. Finally, we analysed student spatial visual comparing to types of visualization by Presmeg. Lot of athletes do not have time enough in learning about some topic in their class, so we have to find an appropriate approach to led her in learning activity for creating an efective learning. We found that she has two types of visualization that are pattern imagery and kinaesthetic imagery. In the future, we can design instructional tasks that are convenient for this visualizer.
Prior knowledge of students in analytical geometry in terms of gender analyzed using the Rasch model
Authors: Sudihartinih E , Prabawanto S
Published: March 2021

The purpose of this study is to describe the prior mathematical proficiency of students in terms of gender analyzed by the Rasch model. Participants consisted of a class of second-semester students who contacted analytic geometry courses comprised of 11 men and 29 women at one of the universities in Indonesia. The research instrument was a test item describing five questions about points and lines in the plane. The results showed students answered questions according to their level of ability, and there was no gender bias. Therefore in learning that will carried out in groups should be heterogeneous from the prior level of mathematical and gender prior knowledge.
Blended learning based on ebook integrated Youtube in learning mathematics
Authors: Fitriani  , Fatimah S , Herman T
Published: March 2021

This study aims to develop an blended learning based on E-book integrated Youtube in mathematics learning geometry material that is valid, practical and effective and to determine students’ readiness for the use of blended learning at the E-learning stage in mathematics learning. This research is a development research design development model used is the Analyze, Design, Development, Implementation and Evaluation model. And to see the readiness of students towards the use of Blended Learning at the E-learning stage the researchers used a type of qualitative research using descriptive research methods. This research was conducted for high school students in Negeri 1 Langsa City. The instruments used in this study were (1) Plans for implementing learning and E-books integrated with Youtube; (2) expert validation sheets, (3) teacher and student observation sheets; (4) tests; and (5) questionnaire. The results of the research show that developing a blended learning based on E-book integrated Youtube in mathematics learning geometry materia meets valid, practical and effective criteria. The results of the students’ readiness questionnaire towards the use of blended learning in the E-learning stage in mathematics learning showed results on an average indicator with a value of 72.69% with a good category.
The ability of mathematical problem solving of junior high school students in situation based learning and discovery learning
Authors: Hasanah A N , Priatna N , Yulianti K
Published: March 2021

The ability of mathematical problem solving is needed in learning mathematics. However, the facts show that its is still low. This study aims to determine the achievement of mathematical problem solving abilities of students who obtains situation based learning model and discovery learning models. The method of this study was quasi-experimental study with a post-test only control group design. The subject of this research was 64 students in class 8th of one junior high school in Garut, that was chosen by purposive sampling technique. The data was collected through the results of validated tests, interviews and observations. Mann-Whitney test was performed on quantitative data obtained, and description on qualitative data. The results show that the achievement of mathematical problem solving abilities of students who obtained situation based learning was no higher rather than students who obtained discovery learning. The causal factors because two models (1) are student-centered, (2) conducted in groups so that students can share strategies and information with their peers, (3) mathematical problem-solving questions are facilitated at each meeting, (4) have steps that support the use of indicators of problem solving ability in this study, (5) involve several factors that contribute to one’s success in solving mathematical problems.
Hawthorne effect and mathematical software based learning: a meta-analysis study
Authors: Tamur M , Kusumah Y S , Juandi D , Wijaya T T , Nurjaman A , Samura A O
Published: March 2021

The use of mathematical software in learning has been widely applied. This meta-analysis study was conducted to examine the “Hawthorne effect”, or the novelty of using mathematical software in learning. Related databases are sought for studies that qualify for examining the effects of using mathematical software compared to traditional teaching on students’ mathematical abilities. Random-effect models with 95% confidence intervals (CIs) were estimated. 40 effect sizes were analyzed from 40 primary studies that have been published in journals, or national and international proceedings from 2010 to 2020, and a total of 3072 students were included in this meta-analysis. The Comprehensive Meta-Analysis (CMA) program is used to assist analysis. As a result of the study, the overall effect size was 0.886 with a standard error of 0.092. The results of the follow-up analysis showed that the duration of the treatment was related to the use of mathematical software. It was found that the use of mathematical software given in the span of 0 - 4 weeks (effect size = 1.193) was more effective if carried out in more than 4 weeks (effect size = 0.535). Thus the Hawthorne effect influences the effectiveness of the use of mathematical software on students’ mathematical abilities. This fact is considered by education practitioners in using mathematical software in the future.
Analysis of mathematical communication skills of class 8 students on two-variable linear equation systems (SPLDV) concept
Authors: Gardenia N , Herman T , Juandi D , Dahlan T , Kandaga T
Published: March 2021

This research aims to describe the mathematical communication skills of class VIII students, as well as the mistakes made by students in solving answers to the two-variable linear equation system problem. This research was conducted with a qualitative descriptive method. The subjects in this study were 3 eighth grade students of SMP Negeri 1 Dendang. Which consists of one student with high mathematical ability, one student with moderate ability, and one student with low ability. To find out how far mathematical communication skills are measured based on indicators of mathematical communication skills, namely 1) The ability to make mathematical expressions, including the ability to state situations, images, diagrams, or real objects into language, symbols, ideas, or mathematical models, 2) Ability to state situations or mathematical ideas in the form of images, diagrams, or graphs, 3) The ability to write answers in their own language. The results showed that high-ability students had mathematical communication skills of students quite well on each indicator, medium-ability students also had good mathematical communication skills on indicator 1, student 3 with low ability had low mathematical communication skills on each indicator.
Level of mastery of mathematical skills and mathematical resilience
Authors: Harsela K , Asih E C M , Dasari D
Published: March 2021

This study aims to analyze mathematical resilience based on the level of mastery of students’ mathematical skills in solving word problems. This research was a mix-method study with selected research subjects who were four independent learners, three instruction learners, and three frustration learners of class VII in Baleendah. The instruments of this study were test and non-test (interviews and mathematical resilience questionnaires). The results showed that: (1) the excellent mathematical resilience of the independent learner impacted the positive outcomes of students in overcoming difficulties that existed in mathematical application problems. But, students’ who had good mathematical resilience (medium category) didn’t affect overcoming obstacles in word problems; (2) good mathematical resilience (medium category) from the instruction learner had a positive impact on overcoming challenges in word problems. Mathematical resilience in frustration learner (medium category, but partly low group) had an effect on the complexity of solving mathematical problems, and (3) mathematical resilience in frustration learner who got very low/low grade affects the challenge of solving mathematical application problems. However, students at the level of frustration have an excellent resilience ability (medium category) but do not modify the difficulties they experience (still having trouble) in solving word problems.
Junior high school students’ achievement of mathematical problem solving ability and mathematical habit of thinking flexibly using learning Inquiry Co-operation Model (ICM)
Authors: Handayani M , Suhendra  , Yulianti K
Published: March 2021

This study aims to see the achievement of mathematics problem solving ability and mathematics habit of thinking flexibly using Inquiry Co-operation Model (ICM) learning in the experimental class and the control class. This research is a quasi-research with a post-test only control group design. ICM learning is given to 31 students of the experimental class, while 31 control class students are given direct learning. The population is students of class VIII junior high school students in one of the cities in Sumatera Barat selected through purposive sampling techniques. Students take tests of problem solving ability and fill in the habit of thinking flexibly questionnaire. a) The achievement of students’ mathematical problem solving abilities using ICM learning is higher than students who use direct learning; b) achievement of a mathematical habit of thinking flexibly of students who use ICM learning is better than students who use direct learning; c) there is a relationship between mathematical problem solving abilities with a mathematical habit of thinking flexibly. It was concluded that ICM learning can achieve problem solving ability and habit of thinking flexibly.
Error type analysis based on Newman’s theory in solving mathematical communication ability of junior high school students on the material of polyhedron
Authors: Musyadad M A , Martadiputra B A P
Published: March 2021

This study aims to analyze students’ mistakes in doing mathematical communication ability on polyhedron Newman error indicators. This research used a qualitative approach with a case study method. The subjects of the study were the eighth grade students of at one of the public high schools in the city of Bandung in solving questions about Building polyhedron. The research instrument was a test that was analyzed using the Newman error indicator. Based on the results of data analysis, it was known that the average mathematical communication ability of students were still low. The indications were: (1) 8.3% of students misread questions (do not know the meaning of the questions); (2) 13.3% of students misunderstood the questions for (did not know what to look for); (3) 30.0% of students incorrectly transformed questions (could not form the generating function of the questions); (4) 18.3% of students did not have process ability (errors in calculations); and (5) 21.7% of students mistakenly wrote the final answer (error writing the final answer to the problem).
Use of corn maze educational game as a learning medium for rural communities to build food security behaviours
Authors: Pujiastuti H , Haryadi R
Published: March 2021

The purpose of this study is to develop food security behaviours in rural communities. The place of this research was conducted in the village of Banyubiru, Labuan district, Pandeglang regency, Banten Province, Indonesia. The method used in this study was an experiment with the design of forming three village community groups, each group consisting of 15 people. The instrument used in this study was a food security behaviours questionnaire test and an observation sheet during the implementation of the corn labyrinth educational game. The results of the questionnaire of resistance behaviours in the village community in Labuan Banten amounted to 66.83% or 0.67 in the good category. Furthermore, the observations during using the labyrinth educational game of 72.50% or 0.73 are in the good category. So it can be concluded that the behaviours of food security can be grown through learning activities through the design of a corn maze educational game.
Improving students’ NOS understanding through explicit-reflective learning with socio-scientific issues context
Authors: Habiby I , Hernani  , Riandi
Published: March 2021

As part of the scientific literacy component, the nature of science (NOS) contributes to the process of forming students with scientific literacy. This study aims to develop students’ NOS understanding through explicit-reflective learning with socio-scientific issues (SSI) context. The quasi-experimental research method with the non-equivalent pretest-posttest control-group design was used in this study. A total of 45 students in seventh grade from a private junior high school in Prabumulih participated in this study and were grouped into 24 students in experimental class and 21 students in comparison class. Essay questions are used as the instruments in pre- and post-learning to measure students’ understanding five aspects of NOS, which are subjective, tentative, empirical, observation, and social and cultural. The results show that the percentage of students in the experimental class who display an increase in NOS understanding is greater than the students in the comparison class. This study shows that explicit-reflective learning with the SSI context could be used to develop students’ understanding of NOS.
Investigating junior high school students’ perception of global warming topic using semantic network analysis
Authors: Pratami A R , Riza L S , Rusyati L
Published: March 2021

Understanding how students perceive global warming concept is important for their metacognition. A total of 241 junior high school students including all grades were involved in this research. With an open-ended question, this research identified students’ perception of global warming concept. Semantic network analysis was chosen as the method to determined and displayed students’ perception by checking the connection of the words used to response the open-ended question. After the process of analysis, there were there main statements from students to define global warming: (1) Increase of earth temperature, (2) depletion of ozone layer, and (3) greenhouse gas and human activities as the cause of global warming. The result of this research can be used to develop the teaching method which can motivate the students’ scientific thinking.
Identify students’ conception and level of representations using five-tier test on wave concepts
Authors: Wiyantara A , Widodo A , Prima E C
Published: March 2021

This study aims to identify students’ conception and their level of representation on wave concepts. This is descriptive research. Data were collected through a five-tiers instrument test. Subjects in this study were thirty 9th grades in one of Junior High School in Bandung. The results of the study show that there are many students who lack knowledge and misconceptions. Students’ visual representation in wave concepts in real life is only at the macroscopic level. Their drawing in connecting phenomena and real-life also have some errors. Multiple representations-based learning is needed to facilitate students changing their conceptions into scientific and deep conceptions, which not only focus on representations modal such as verbal, picture, mathematic, and graph, but also level of representations, such as macroscopic, microscopic, sub-microscopic and symbolic.
Repackaging RADEC learning model into the online mode in science class
Authors: Sukardi RR , Sopandi W , Riandi R
Published: March 2021

This study aims to formulate the RADEC learning model with full online learning mode in natural science instruction, both through synchronous and asynchronous communications. This research belongs to the type of qualitative description with the participants involved consisting of 20 students and 5 teachers taken based on a purposive sampling technique. The instruments used were a questionnaire and unstructured interviews that were processed with triangulation techniques. The results of this study indicate that 1) At the Read stage the teacher provides opportunities for students to enrich knowledge from various sources through asynchronous communication, 2) At the Answer stage, students also answer pre-learning questions through asynchronous communication, 3) At the Discuss stage, the teacher divides students into small groups. Students discuss pre-learning questions in their groups then answer them through asynchronous communication. Students’ answer is the sources information for the teacher to classify concepts based on difficulty level, 4) At the Explain stage, the teacher is a moderator who gives students opportunities to rebut or support the answers. The teacher also leads students to have scientifically conceptual knowledge with probing questions through synchronous communication, 5) In the Create stage, students agree, realize, and report ideas on the product. They have to present the product through synchronous communication.
Making teaching materials by utilizing the Cibodas Botanical Garden in an effort to improve plant literacy and classification skills of high school students
Authors: Anggraeni N R , Sriyati S , Amprasto
Published: March 2021

The development of teaching materials by utilizing the Cibodas Botanical Garden (CBG) to train plant literacy and plant classification is currently not yet developed. Teaching material by utilizing the KRC was made to determine the feasibility and readability of teaching materials, train students in improving the ability of plant literacy and classification of plants, and student responses to teaching materials. The method used in this study is the ADDIE development method. The subjects in this study were 24 students of 10th grade high school students whose school was close to CBG. The instrument used was the validation sheet, cloze test, plant literacy questions, matter of plant classification, and student response questionnaire. The results showed that the average percentage of the feasibility of teaching materials is 88.85% with very decent criteria. Readability test obtained a percentage of 67.1% with high criteria. The plant literacy test obtained an N-GAIN value of 0.35 with moderate criteria and an increase in the plant classification test obtained an N-GAIN value of 0.31 with moderate criteria. Furthermore, the analysis of student responses obtained 84.1% with good criteria. Based on these results, it can be concluded that teaching materials using the KRC are appropriate and can help students improve their literacy and classification abilities.
Promoting health education through biology: The effectivity of a 5E-learning scenario on nutrition and digestive system topic towards high school students’ health literacy
Authors: Subiantoro A W , Mutiarani Y P
Published: March 2021

As one of the sustainable development goals (SDGs), good health and wellbeing needs to be supported especially through science education program. Therefore, this research is aimed to examine the effect of a 5E learning scenario in biology instruction on nutrition and digestive system topic towards high school students’ health literacy. This was a quasi-experimental research that involved two groups of students from a public high school in Bantul region, Yogyakarta, Indonesia. One group played as a treatment group who learned the topic using 5E learning scenario, whilst another one as the control group who was taught by lecturing method. Pre-test and post-test instruments were employed to collect students’ health literacy data and analysed descriptively towards its indicators as well as statistically using Wilcoxon and Mann U Whitney. The findings show that the treatment group’s health literacy skill is significantly better than the control group (0.00; p:0.05). Therefore, it is concluded that the 5E-learning model implemented in this research evident more effective in fostering students’ health literacy.
High school students’ proposition network representation and its relationship with thinking level in learning human nervous system using Modeling Based Learning (MbL)
Authors: Kadarusman L , Rahmat A , Priyandoko D
Published: March 2021

The purposes of this research were to identify the students ability to form a proposition network representation and to analyze the relationship of that thinking level with the students ability to form a representation of proposition network on human nerve system concept. This is a descriptive research with 30 science class students of grade XI from one private school in Bandung as the subject research, who learned human nervous system concept, using modeling based learning (MbL). The data collection was taken by rubric instrument and thinking level test. The result of this research show that the ability of high school students’to develop a representation of proposition network on general is in the fair category. The correlation result shows no significant relationship between thinking level and the students’ ability to form a proposition network on learning of neuron structure and function (r=0,075; p=0,692) with low complexity of content. The significant relationship between thinking level and the ability to form proposition representation is obtained during the study of central nervous and peripheral nervous system (r=0,506; p=0,004) with higher concept complexity. It means the higher students’ thinking level, the better their abilities to form a proposition network.
The development of teaching materials of the potential coral reefs in Tiga Island Natuna on the concept of ecosystem
Authors: Halim R , Supriatno B , Amprasto
Published: March 2021

The purpose of this study is to develop teaching materials about coral reefs Tiga Natuna Island in Biology learning on ecosystem material in high schools. The research method used was descriptive analysis, and the research model used was ADDIE (analysis, design, development, implementation, and evaluation). However, the completion of this teaching material was still in the testing phase. The weak experimental method with the one-group pretest-posttest design was conducted in this testing phase. Sixteen students were selected by purposive sampling in grade X Public High School. Data was collected through instruments written tests. The test was arranged based on the indicator of environmental literacy on the knowledge aspect. Then, data was tested by N-gain. Based on the results of the testing of this teaching material obtained n-gain of 61.78 (medium category). The average pretest-posttest score of students was 50.16 and 85.61.
Local potential analysis of freshwater swamp ecosystem in Tasik Serai Timur village as a learning resources material of ecosystem for high school students
Authors: Meidamayani S , Adisendjaja Y H , Amprasto
Published: March 2021

Freshwater swamp in Tasik Serai Timur Village is one of 22% freshwater swamps in Sumatra. It is a part of biosphere reservation of Giam Siak Kecil of Bukit Batu Riau which is included among eleven biosphere reservation in Indonesia. It has ecological and economic functions to be preserved. One of many ways to preserve it is by teaching about it to the students. There have been many researches discussing about using its local potentials as a learning resource, but there are just limited numbers researches on local potentials of freshwater swamp, especially at Tasik Serai Timur village which can be used as the source of learning materials on ecosystems. The research methodology used here was descriptive method. The data was obtained by using explorative observations in the field and interviews with the people living around the research spot. From the result of the research, Local potentials found were abiotic and biotic components, types of interactions, and adaptations made by biotic components in freshwater swamps in the village of Tasik Serai Timur village. It is found that local potentials on freshwater swamp in this village can be used as learning resources for senior high students based on basic competence 3.10 and 4.10.
The e-module development of reaction rate based on guided inquiry as independent teaching materials
Authors: Noer A M , Putri E N , Rery R U , Anwar L , Tarawi O
Published: March 2021

E-module reaction rate based guided inquiry has been developed using the Kvisoft flipbook maker. The e-module is developed using the Plomp development model which consists of three phases namely, the initial investigation phase, the prototype making phase, and the assessment phase. The results of the material validation obtained an average percentage for the content aspects, presentation aspects, language aspects, and graphics aspects are 87.46%, 86.63%, 95.80%, and 81.5% with a very valid category. While the result of media validation obtained an average percentage for the cover design aspect, the content design aspect and the display aspect are 100%, 97.80%, and 85.6% with a very valid category. The result of t h e u s e r response test obtained average percentages are 88.34% and 86.25% with a very good category. Based on the result of the validation and user response test can be concluded that the e-module reaction rate based guided inquiry is feasible to be used in the chemistry learning process as independent teaching material.
The effect of inquiry based learning models on students’ critical thinking ability and self-efficacy in reaction rate material
Authors: Kamal N A , Suyanta
Published: March 2021

This research aims to distinguish students’ critical thinking and self-efficacy when learning with the inquiry based model and direct instruction model. The samples of this research were two classes of the eleventh grade and selected by random sampling technique. Two classes were selected as the samples, one class as the experimental class where the inquiry-based model was implemented and the other class as the control class where the learning was facilitated with the direct instruction model. The data of the students’ self-efficacy were collected through a questionnaire while the data of the critical thinking were obtained through a test on reaction rate. The researcher used MANOVA to analyze the differences of the students’ critical thinking and self-efficacy. The results reveal that there are significant differences in the critical thinking skills and self-efficacy and the effective contribution of inquiry-based learning and direct instruction to students’ critical thinking skills and self-efficacy is 20.6%, the effective contribution of inquiry-based learning and direct instruction to students’ critical thinking skills is 13.6%, the effective contribution of inquiry-based learning and direct instruction to students’ self-efficacy is 8.9% where experimental class was better than control class.
Multiple representation-based chemistry learning textbook of colloid topic
Authors: Widiastari K , Redhana I W
Published: March 2021

This study aimed to describe the differences in students’ learning outcomes using the multiple representation-based chemistry learning textbook and the conventional chemistry learning textbook. This study was a quasi-experimental research. The population of this study was eight classes of Mathematics and Natural Sciences at SMAN 4 Denpasar Bali Indonesia. The samples were selected by cluster sampling technique to determine a control and an experimental group. Students in the control group were taught by the conventional chemistry learning textbook, while students in the experimental group were taught by the multiple representation-based chemistry learning textbook. The data in the study were students’ learning outcomes. These data were analyzed using the analysis of covariance statistics. Results of the study showed that there was a significant difference in learning outcomes between students taught by the multiple representation-based chemistry learning textbook and those taught by the conventional chemistry learning textbook. From the mean of learning outcome scores, it could be concluded that the students’ learning outcomes who were taught by the multiple representation-based chemistry learning textbook were better than those of the conventional chemistry learning textbook.
Feasibility of guided inquiry-based student lab worksheet on the topic of polymer through making squishy
Authors: Dwiyanti G , Wahyu W , Kusumo V
Published: March 2021

This research aims to determine the feasibility of the student lab worksheet based on guided inquiry on the topic of polymer through making squishy. The research design used on this research is educational design research. Participants in this research are three chemistry education lecturers at Department of Chemistry Education FPMIPA UPI Bandung and two chemistry teachers at a private school in Bandung. The instrument used in this research is the feasibility test sheet related to the suitability of the components in student lab worksheet with indicators of inquiry skills, suitability of concepts, suitability of grammar, and suitability of layout and appearance in the student in the lab worksheet. The results of the feasibility test related to the suitability of components in student lab worksheet with indicators of inquiry skills, suitability of concepts, suitability of grammar, and suitability of layout and appearance are all scored above 80% thus included in the “excellent” category. The obtained results indicate that the student lab worksheet is feasible to be used in a limited trial and can be further developed.
Chemistry teacher responses to learning in the COVID-19 outbreak: Challenges and opportunities to create innovative lab-work activities
Authors: Shidiq A S , Permanasari A , Hernani  , Hendayana S
Published: March 2021

The COVID-19 pandemic has forced schools to make a shift in learning mode, from face to face become online remote learning. This is also faced and done by chemistry teachers. The study was conducted to investigate the response of chemistry teachers to online learning in the COVID-19 pandemic. A purposive survey method was used in this study by giving online questionnaires through Google form containing 10 open questions about chemistry learning and practicum conducted by the chemistry teachers in the COVID-19 pandemic. The data were collected for a week at the beginning of June 2020. A total of 55 chemistry teachers from West Java participated as respondents. The result found that chemistry teachers had tried to utilize various technology platforms in conducting learning. Moreover, most of them faced difficulty to arrange the lab-work activities and did nothing. Some teachers try to find lab-work multimedia instead of real activities. However, the multimedia commonly did not make students pertain the processes skills. Since the pandemic could not be predicted when it will finish, this is a kind of challenges and opportunities to think about implementing online chemistry learning from now and then.
Chemistry student’s virtual laboratory self-efficacy: A scale development
Authors: Romika Y , Atun S
Published: March 2021

Self-efficacy is described as an individual’s beliefs about their abilities to complete an action. It is a part of the social cognitive theory in the chemistry learning process. self-efficacy consists of six aspects, namely the choice of activities, effort, perseverance, learning, achievement and strategy orientation. The objective of this study was to develop an instrument of chemistry student virtual Laboratory self-efficacy (CSVL-SE) in a virtual laboratory within the chemical equilibrium topic. This research used research and development (R&D) method. The data was obtained through a self-efficacy questionnaire. The expert confirmed the content validity with 26 items that had been administered to 60 students in senior high school. Rasch Model used to analyse the data that met the unidimensionality, item fit, difficulty or ability estimation, reliability, and information function. The findings showed that 26 items match into the Rasch Model with reliability person and reliability item of 0.84 and 0.97. So that, this instrument is appropriate to collect the data.
Validation of critical thinking test to senior high school students
Authors: Triastuti T , Laksono E W
Published: March 2021

The purpose of the research is to examine the development of instruments for measuring the critical thinking abilities of high school students. This research is a quantitative descriptive study. Aspects of critical thinking skills used are to identify problems, reconstruct arguments, evaluate arguments, determine solutions and conclude. Data are analyzed based on criteria such as unidimensionality, local independence assumption test, item fit, and level of difficulty, reliability, and information function. The analysis results show that instruments can be accepted for use and are useful for educators to measure the critical thinking skills of high school students.
Inquiry-based laboratory practice enzyme kinetics to improve students’ critical thinking ability
Authors: Zikrina A , Liliasari  , Supriyanti F M T
Published: March 2021

The purpose of this study was to identify the effects of practicum using inquiry-based laboratories of enzyme kinetics on local material to improve students’ critical thinking ability. The inquiry-based laboratory practice of enzyme kinetics has four stages to keep the students’ effort on track: pre-lab activities, an in-lab discussion, in-lab work and a post-lab assignment. This study used a quasi-experimental method, with single group pretest-posttest design. The subjects of this study involve 55 students enrolled in biochemistry practicum course from the sixth semester of chemistry study program. The critical thinking ability test instrument consist of 12 reasonable multiple choices question that includes two indicators of critical thinking ability i.e. basic support and inference and also supported by student worksheet. Data analysis of students’ score test using t-test. There was a statistically significant improvement of students’ critical thinking skills (symp.sig 0.000). Furthermore to see the increase in each students’ critical thinking indicator, N-gain is calculated. Based on implementation of the inquiry-based laboratory, it is reported that students’ critical thinking skills improved in medium category and also for students’ critical thinking indicator of ‘inference’. But in the students’ critical thinking indicator of ‘basic support’ they get high category.
Senior high school students’ self-efficacy on learning acid-base
Authors: Novinta A Y , Partana C F
Published: March 2021

In learning chemistry such as acid-base students’ self-efficacy is important. The aim of this research was to describe the senior high school students’ self-efficacy in learning acid-base using descriptive method. There were 109 senior high school students in Yogyakarta, Indonesia who participated in this research. Questionnaire sheet was used to obtain the data of students’ self-efficacy by 32 item statements. This questionnaire sheet was contained five aspects of self-efficacy, there were task orientation, effort, persistence, beliefs, and performance. The analysis of students’ self-efficacy data was conducted quantitatively, then categorized from self-efficacy score into ideal rating category. The result of this research showed that 2 students had very good category, 57 students had good category, and 50 students had fair category. It indicated that the average senior high school students in Yogyakarta, Indonesia had enough until good category of self-efficacy in learning acid-base.
The analysis of content teaching materials: identification of potential for developing systems thinking skills in coordination chemistry
Authors: Kisworo B , Liliasari S , Mudzakir A
Published: March 2021

The purpose of this study is to analyze the content of the coordination chemistry teaching materials used by lecturers in chemistry undergraduate students education program at one of Islamic University in Cirebon. It should has a potential for the development of students’ systems thinking skills. The data used in form of teaching materials compiled by a team of lecturers and digital textbooks that consist of complex coordination compound matter. This study uses the Model of Educational Reconstruction (MER) limited to only phase one namely content structure analysis. Then the qualitative content analysis (QCA) of the Mayring model has been applied. The first stage of MER content analysis is carried out namely clarifying the conception of the material from scientists. The result of the qualitative contents analysis of coordination chemistry teaching materials used by the lecturers meet the criteria of indicators to develop students’ system thinking skills. The structure of the contents of this teaching material showed that in each part of the key concepts represent the ability to identify, organize, map the concepts involved in coordination compound bonds and analyze, predict the structure of coordination compounds. It has been found that 88.89% of teaching material has potential to develop all indicator of student’s system thinking. The result showed that the content of coordination chemistry teaching materials has an influence in developing students’ systems thinking skills.
STEM learning on environmental pollution topic: identifying science self-efficacy instrument using Rasch model analysis
Authors: Rahmawati S , Widodo A , Eliyawati E
Published: March 2021

The instrument was made as an effective way to measure students’ science self-efficacy in a particular topic such as environmental pollution during the implementation of STEM Learning. A sample of 65 students grade 8th near West Java was involved in this study. The instrument consists of 28 statements, which are divided into six aspects of science self-efficacy which are conceptual understanding, high order cognitive skill, everyday application, science communication, physiological state, and practical work. The process of developing instrument consists of several steps: (1) conduct literature review, (2) construct students’ science self-efficacy, (3) validity and readability test, and (4) conduct test. Rasch Analysis Model is used to analyze the data using version 4.4.5 of the Winstep Application. The result shows Cronbach’s alpha value is 0.91, which means the interaction between items and the person as a whole is in a very good category. It could be used as an instrument for another implication.
Application of performance assessment in STEM-based biological learning to improve student’s science process skills
Authors: Farach N , Kartimi  , Mulyani A
Published: March 2021

The purpose of this study first of which examine the differences in activity students who applied performance assessment in STEM-based biology learning to sensory system material, secondly reviewing the differences in the improvement of the results of science process skills students who applied performance assessment in STEM-based biology learning to sensory system material, and third reviewing student responses to performance assessment in STEM-based biology learning in sensory system material. The research approach that has been used is a quantitative approach. The sampling technique that has been used is the type of random sampling. The samples that have been are two classes for the experimental class and the control class. Data collection techniques used were written tests, observation sheets, questionnaires, and projects. The results of this study indicate that among other things there are differences in student learning activities between the experimental class and the control class secondly there are differences in the improvement of students’ significant science process skills after the implementation of performance assessment in STEM-based biology learning with the experimental class N-Gain is 0.90 and the control class is 0.45 and the third was a strong positive response result of 74%.
The Information System Development of Prescription Screening Management in Public Health Center I Kotagede Yogyakarta
Authors: Putri Puji Handayani , Nilansari Anis Febri
Published: March 2021

Prescription screening is an assessment of the suitability of prescriptions performed by pharmacies in order to minimize the occurrence of medication errors. It is necessary to use information technology so that prescription screening can be carried out quickly, precisely and accurately. The purpose of study was to develop a design model for prescription screening management information systems in Puskesmas Kotagede 1. This study was a descriptive study with a cross sectional design. The research was conducted at the outpatient pharmacy installation at Kotagede 1 Public Health Center in November 2019-April 2020. To determine the system requirements analysis, a descriptive analysis was carried out. The development of a prescription screening information system was carried out using the prototype method. The results of the system requirements analysis indicate that the identification of prescription screening has not been carried out completely by pharmaceutical officers. The development of a prescription screening information system model design at Puskesmas Kotagede 1 uses the waterfall method. The stages start from requirement analysis, system design, implementation, integration & testing, operation & maintenance. With the development of a prescription screening information system model, it can facilitate pharmaceutical work in the prescription screening process to be fast, precise and accurate.
Organizational citizenship behavior as antecedents and outcome in era technology
Authors: Sumarmi Saptaningsih , Tjahjono Heru Kurnianto
Published: March 2021

The paper aims to discuss the concept of Organizational Citizenship Behavior (OCB), as an antecedent of Organizational Justice (OJ), and the consequences of Organizational Performance (OP). The method used is to review theories and relevant literature to reconstruct propositions of the possible influence of OJ’s four dimensions. The dimensions are distributive Justice, Procedural Justice, interpersonal Justice, and informational Justice to OCBI and OCBO, and their consequences on organizational performance. The results of the study propose propositions from the OJ dimension, namely distributive Justice, Procedural Justice, interpersonal Justice, and informational Justice can influence OCB Individual and Organizational OCB. They can have an impact on organizational performance.