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Critical thinking skill is one of the essential skills needed in the 21st century. Besides being improved through a learning process, critical thinking skill also can be acquired through the evaluation. This study aims to determine the validity and reliability of a critical thinking skill instrument. The research method used is Research and Development (R&D) with the ADDIE model and a quantitative descriptive analysis. The participant of the study are fifty 2nd semester students majoring in Physics and Chemistry. This test consists of sixteen reasoned multiple-choice items. The data are collected by using test and questionnaire. Expert validation shows that this instrument is well categorized with a percentage of 90%. This result shows that the instrument is reliable with a reliability of 0.71. The implementation shows that students’ critical thinking skill is low with a score 10.1 out of 64.

Sustainable Development in general is a human effort to improve the quality of life while trying not to go beyond the ecosystem that supports life. The smoking of fish in Banggi Village still creates smoke which can interfere with breathing for smoked fish craftsmen and the surrounding community. This study aims to determine the results of using fish smoking in Banggi village in learning the respiratory system to improve students’ problem solving abilities. This study used sample of two classes. One class there were a number of students who received Sustainable Development based learning and one other class did not get this treatment. The research instrument was in the form of problem solving ability test items. The results N gain on problem solving abilities in the class with Sustainable Development based learning activities are moderate category, while the class with not Sustainable Development based learning activities was low category. The posttest scores of the two classes are obtained by Sig. (2-tailed) of 0.000

Research on scientific creativity as a domain-specific creativity has begun to develop. A literature review on scientific creativity has been carried out using identification, screening, eligibility, and inclusion procedures, with paper sources from the IJSE, DOAJ, ERIC, IOP Science, ScienceDirect, and Springer Link websites, in the 2001-2019 period. There were 49 papers on scientific creativity that were published in that period. The results of this study indicate that the scientific creativity test developed by Hu and Adey is the beginning of increasing scientific creativity research as a domain-specific creativity. Therefore, a further review of Hu and Adey’s test needs to be done in order to reveal the characteristics and development of the test. To achieve this goal, 49 papers were scanned with the keyword “Hu and Adey”, and finally 26 papers were obtained. The results of this further review show that Hu and Adey’s test has the following characteristics: using a classical approach (creativity is divergent thinking); using domain of science, covering the three dimensions (product, trait, and process); using the essay test format; and promoting more objective scoring. Hu and Adey’s scientific creativity test has been referenced, applied and developed by several researchers. The benefit of this literature review is to show the advantages of the scientific creativity test required to measure one of the twenty-first century skills.

The similarity in characteristics between students’ life experiences and some of the science concepts supports the need to use analogies in learning science in elementary schools. This paper discusses the research results aimed at exploring the analogical thinking skills of students based on culture, especially in the Pesisir area. The discussion’s main focus lies in the format of the presentation given by students when presenting the analog of the concepts of electric current and plant motion. Data were collected through observation, interviews, and literature study from various selected school sources in the Pesisir cultural area: the Tegal Regency. Derived conclusion based on data analysis and discussion stated that students’ dominant presentation format to explain the scientific concepts given in this study analogically is the verbal-pictorial format.

Comprehending the problem-solving process is an effort that is no less important than teaching problem-solving skills at school. By understanding the problem-solving process, it will be easier to teach at school. Several neurological studies discuss activities in solving problems, but the scope of the discussion is narrow and in-depth. On the other hand, it requires complete information about how the problem-solving process is a complex cognitive process. This research is a systematic literature review using the PRISMA approach. The result shows that the problem-solving skills were developing based on ages of development. The effectiveness of problem-solving skills is characterized by minimal brain activity but produces the right solution. In addition, the result of the review shows that semantic ability and mathematical logic ability play an important role in a problem solving process. Getting complete problem solving process needs many parts of the brain. DLPFC and IFG are the dominant parts of the brain in the process of solving problems.

The purpose of this study was to : 1) an understanding of quality assurance in science teachers; 2) implementation of the integrated science learning quality assurance; 3) a conceptual model of the integrated science learning quality assurance. The Integrated science learning quality assurance model is a systematic, planned and sustainable process to ensure that learning is carried out according to process standards. This study use evaluation research. The research approach was quantitative descriptive. The data collected by test, observation, documentary study, and literature review. Based on study result, a conceptual model of the integrated science learning quality assurance was proposed. The conclusion of the research is both the understanding of science teachers on quality assurance tends low. Integrated science learning both in planning and implementation shows low scores. A conceptual model of the integrated science learning quality assurance was proposed with implementation of quality procedures application. These activity are analysis of graduates competencies - core competencies - basic competencies, analysis of integrated science, mapping of basic competencies, preparation of indicators net, development of syllabus, preparation of lesson plans, ensure of learning preconditions, implementation of learning, and implementation of assessment.

This research is aimed to provide Interview worksheets for Vocational School of Pharmacy Students which have content validity with ethnoscience content so students experience directly how to gain information about medicinal plants used locally as inherited knowledge. Interview worksheets are a form of learning media that can support 21st century skill inside students. Interview worksheets have to be developed with various interview techniques and need a content validity test in order to be used to reach learning goals. The validity of interview worksheets through content validity must be conducted by experts in science learning field. This content validity is done quantitatively by experts by using Aiken’s V. This scoring of interview questions is employed to 26 interview questions with the minimum score is 1 and the maximum score is 5 by 9 validators whose expertise in science learning. Score V gained by using Aiken formula from each question compared to Aiken’s content validity table with significance level 5% to decide point validity. Data analysis of interview questions show 15 valid questions of 26 in designed worksheet instruments. The result of Alpha Cronbach’s reliability test is 0.99 which means that the reliability level is very strong.

There are already many questionnaires on the nature of science that are used in general, but it is still very rare for Indonesian version. This study developed an Indonesian version of questionnaire on the nature of science for students. The questionnaire consists of 27 items with nine dimensions as result of literature study. The questionnaire was validated by 12 experts with improvements to several items. Questionnaire is reliable with 11 items are valid. Factor analysis shows that this questionnaire consists of ten dimensions that is not in accordance with the grid arranged. Excess dimensions of factor analysis occur because these dimensions are closely interrelated so that their indicators are difficult to differentiate. This tested questionnaire can be used to see the students’ views on the nature of science. To compile the next questionnaire on the nature of science, we recommend that the dimensions be simplified; the dimensions that are closely related should be made into one.

The purpose of this study was to determine (a) developing survey instruments for Teacher’s Perception of Science Practices Learning (SPL) and (b) describing the perception of science learning practices. This research uses descriptive survey method. Respondents in this study were elementary school, junior high school and high school science teachers in the Central Java region, totals 74 teachers. The research instrument used was a science learning practice perception questionnaire. The instrument has gone through the stages of expert validation and empirical testing. The instrument validity uses exploratory factor analysis. Data analysed by descriptive. The research results that the perception of science teachers on SPL is not different. Elementary, middle and high school science teachers have enough categories. El dimension, EE, SDC elementary, middle and high school science teachers have enough categories. The dimensions of the EPK for elementary science teachers have enough categories, middle and high school science teachers are in good category. The dimensions of IT in elementary, middle and high school science teachers are good. Science teachers’ perceptions of SPL are in the enough category.

This study aims to describe STEM-based Student Worksheets, which facilitate the development of critical and creative thinking skills. Another aim is to test the level of readability, feasibility, and describe the improvement of critical and creative thinking skills after the Student Worksheet is applied. This research uses Research and Development (R&D) method as well as one-group pretest-posttest design. As research subjects were ten high schools in the city of Semarang. The results of the feasibility test indicate the criteria are suitable for learning by obtaining an average of 88.96% which means it is very feasible. In addition, the readability test showed that the worksheets were easily understood with an average of 91.66% and an analysis of improvement in critical and creative thinking skills was found to have high average criteria.

Compost tea is made from compost extracts that contain nutrients needed for plant growth and development. Hydroponics is a planting system that depends on the availability of organic nutrients in the planting medium so that it produces plants that are ready for consumption that are safe and nutritious. This is the basis for providing an understanding of Sustainable Development for high school students in the Adiwiyata program. Adiwiyata is a program that aims to create good conditions for schools to become a place for learning and awareness of school residents (teachers, students, and other workers), to encourage efforts to save the environment and Sustainable Development. The purpose of this study is to increase the understanding of Sustainable Development in high school students in the Adiwiyata program. This study uses one high schools in the Adiwiyata program. Before and after the activity of literacy a hydroponic system using compost tea for safe and nutritious food security and healthy environment, then students were given questions about Sustainable Development. The results showed an increase in understanding of Sustainable Development.

The aim of the study was to identify the scientific concept in the batik manufacturing processes as learning resources for developing science teaching learning grounded in STEM-approaches and ethnoscience. The research method was one of qualitative ethnographic studies. Data were collected by observation, interviews, and documentation studies at Pekalongan Municipality and Regency. The results showed that in the process of batik-manufacturing by indigenous people in Pekalongan, the concept of science was successfully identified and related to science teaching learning for junior high schools. Furthermore, these scientific concepts were integrated into science learning using the Science, Technology, Engineering and Mathematics (STEM) approach.

Creative thinking skills are one of the 21st century skills pursued in science learning. This study aims to analyze learning strategies that have been studied to improve students’ creative thinking skills. To achieve this goal, a meta-analysis was conducted on the results of research on students’ creative thinking skills that had been published in scientific journals from 2012 to 2018. A total of 30 relevant articles were obtained. All articles were analyzed using a qualitative approach, by identifying and classifying the objectives and research subjects used as well as learning strategies that had been studied to improve creative thinking skills. The results of the analysis can be concluded that problem-based learning is the most studied model to improve creative thinking skills, especially in senior high school students.

Much research has been done on creativity and the results can be easily found in journals, however, research on scientific creativity as a domain-specific creativity is still relatively rare. Therefore, it is necessary to study the literature to reveal the scope of research on the topic of scientific creativity. To achieve this aim, a literature review was carried out with the procedure adopted from the PRISMA statement. A total of 49 articles obtained from the IJSE, DOAJ, ERIC, IOP Science, ScienceDirect, and Springer Link websites, in the 2001-2019 period, were analyzed. The results showed that the three journals that published the most scientific creativity articles were JEP, IJSE, and CRJ. And, the three countries with the most contributing authors were Turkey, Indonesia, and Taiwan. Except for one critical review article, the research types of all articles analyzed were an empirical study, which consisted of at least five sub-topics of scientific creativity.

The aim of the study is to describe the patterns of generic thinking skills of students through the design of physics practicum guidelines. The research method uses quasi-experimental using post-test only control group design. The research sample is a Physics Education study program student in 5th semester, taken by cluster random sampling technique. The experimental group carried out physics laboratory project learning with generic science skills while the control group studied physics laboratory projects. Data collection techniques are using observation and test sheets. Data analysis techniques using statistical tests with t test. The results of the study obtained observational data and test data, the data were tested for normality, reliability and statistical tests. The difference in generic science skill patterns was tested statistically, and then data were analyzed for each indicator of generic science skills. The product of this research is the school physics practicum guidelines. The results of the analysis of the generic science skills test showed that the generic science skills in the experimental class were better than the control class. Based on the generic science skill pattern, it is found that the physics teacher candidates are better on the aspects of direct and indirect observation.

The learning process that is synergistic with the development of the current era is very necessary. Local wisdom that is aligned with technology is a challenge. Therefore, this study aims at developing a tool which is functioned to measure students’ readiness towards developing instruments related to etno-STEM based Science Education courses. The selected items were given to the expert team for validation. The initial trial of the initial instrument was done using the main component analysis and Cronbach alpha coefficient. The results of a strong coefficient on each instrument can be used as a reference for implementing etno-STEM based Science Education. The wisdom of the Indonesian people towards the wealth of natural resources and their use is influenced by the lifestyle of the Indonesian people who still tend to be weary. Human resources that are aware of local wisdom and technology and its impact on the environment are needed. Students are as agents of change; developing or not a culture of maintaining etno-STEM based technology friendly local wisdom.

The high competition in the globalization era makes students often faced with various complicated problems. Therefore, teaching process that facilitate students to have smart thingking habits and strong understanding is needed. One way to train and develop students’ habits of mind is through the implementation of formative assessments. This study aims to know the effect of formative assessment with understanding by design (UbD) in improving students’ habits of mind and understanding. The method used is quantitative method with one-group pre-test post-test design. The result of the research shows that there is a significant increase both in student’s habits of mind and student’s understanding. The student’s habits of mind increases by 43,9%, while students’ understanding increases by 45%.

Pedagogical content knowledge is the blending of content knowledge and pedagogical knowledge (PCK) into a specialized knowledge for teaching of specific subjects. In this study, what is meant by PCK for education for sustainable Development is the integration of pedagogy knowledge, knowledge content and three aspects in sustainable development, namely social, economic and environmental together so as to create Education to achieve 17 Sustainable Development goals (SDGs). The purpose of the study was to find out preservice biology teacher’ PCK to Education for Sustainable Development in teaching the respiratory systems. This study was used by two female of prospective biology teachers who were in their final year at the undergraduate level of Biology Education. Data was collected qualitatively through documents of teaching and learning plan and observation during the learning process. Prospective biology of teachers A and B shows the ability to learn respiratory systems that support education for sustainable development. This can be seen in the framework PCK, which is a component of perspectives on economic, social and environmental that is simultaneously and harmonious, material in curriculum context, learning startegy, evaluation and learning outcomes. Leads to the sustainability of present and future life, especially those related to the respiratory system. Learning by teacher A and B aligns with the achievement of goals of Sustainable Development.

This paper presents a study of long range (LoRa) communication for monitoring of a ship electrical system. Three categories of electrical system include generator, power distribution, and navigation are monitored. A low power communication technology of LoRa is used to transmit electrical variables such as current, voltage, and power are logged and sent to the server. Experiments using LoRa SX1278 and Arduino have been inducted to validate the performance of the communication. Three spreading factors 12, 7, 6 have been tested. From experiments results, the performance of the communication has been analysed, if has been found that 97% successful data transmission was achieved with maximum distance. Furthermore, small baud rate communication was more suitable for the application.

Fulfillment of sustainability skills competencies in the 21st century and industrial revolution 4.0, it gives important consequences to prepare teacher candidates who can implement the concept of sustainability in learning on the material they design. This study aims to describe the way prospective biology teacher students translate the understanding of sustainability in pedagogy which is shown in the representation of learning designs made. Ten prospective biology teacher students were recruited to participate in a workshop on learning that contained the concept of sustainability. Conception and awareness about sustainability are measured before and after the program takes place using a predetermined sustainability definition framework. Sustainability representation analysis is carried out qualitatively, seen from the learning plan made and observation real teaching using video. The results obtained show a variety of sustainability representation patterns from those that appear in the form of "mosaics" that are separated until connected and integrated, at the level of only information until the activities carried out by students. Sustainability charge quality that looks comparable to the increase in conception and sustainability awareness obtained by each candidate of biology teacher. The conclusion of this study is the representation of consept sustainability understanding in prospective biology teacher learning has shown suitable harmony among the three main perspectives on sustainability, seen to reach 80% of the workshop participants.

The unique of magnet behaviour has been explored by many parties and attracted them to describe its characteristics using analogy. The use of magnetism concepts analogy are varies including those in the field of education. As a part of a research aiming to investigate culture-based elementary school students’ analogical thinking skill, a study on magnetism concepts analogy has been carried out. By using interview, documentary study and literature review methods, several analogies of magnetism concepts were generated with the basis of various sources of students’ cultural background and learning materials. This paper discusses the analogies, particularly those which can be delivered in elementary school science class, and their implication for education ofPesisir(costal) students. Based on the review and discussion, it was concluded that the analogies of magnetism concepts facilitate people with high educational values which can be put into practice in science learning forPesisirarea students.

The purpose of this research is to know the development of senior high school student’s critical thinking skills through Science, Engineering, Technology and Mathematics (STEM) based learning physics. The critical thinking indicators developed in this study include hypothesizing, interpreting, analysing, summarizing and evaluating. Design of this research uses One Group Pretest-Posttest Design. Subjects in this study were 2nd grade of Senior High School Students, from three Senior High School in Semarang City. The results showed that discussion, experiment, project making and presentation activities that were packaged in STEM based physics learning could develop critical thinking skills in aspects of hypothesizing, interpreting, analysing, summarizing and evaluating. The result of the gain test shows the development of hypothesis, analysing, and evaluating ability included in high category, while the ability to interpreting and summarizing is included in the medium category.

In the era of disruptive innovation that filled with unpredictable problems, the study of physics should address the needs of the learners and prepare them with skills that can be applied in many areas of life. This paper reviews skills that tend to be widely used in various occupations or jobs, such as problem-solving, communication, leadership, and collaboration skills. These skills are often referred to as transferable skills or generic skills or core skills. The analysis was also undertaken to review the role of physics learning in developing transferable skills for graduates.

This study aims to determine the implementation of Science, Technology, Engineering, and Mathematics (STEM) based Problem Based Learning (PBL) model, identifying increased knowledge achievement, character development, and skill enhancement. This research uses Quasi Experiment method while design uses one group pretest-posttest design. The instrument consists of an essay test for measuring the knowledge achievement and an observation sheet for measuring skills and character outcomes. Implementation PBL model based STEM on Impulse and Momentum materials, assisted by Student Worksheet, can improve knowledge achievement (cognitive) and skill (psychomotor), and also can develop the character of discipline, curiosity, communicative, and cooperation.

The purpose of this study is to analyze terminal velocity of a spherical ball in the liquid viscosity experiment. The analysis was performed using a simple calculus approach. Using the limit of v (t) as t approaches infinity (t → ∞) and the asymptotic value (v(t) = ∞) as well as the differential and integral operations, the terminal velocity can be estimated. The time to reach the terminal velocity and the distance traveled by a spherical ball can also be determined. Therefore, the factors that affect the terminal velocity, the time to reach that velocity, and the distance traveled can be analyzed. Such information may be used to improve the design of the experiment.

Accuracy in representing knowledge possessed by students will show how the level of student understanding. The multi-representation ability of students on the problem solving of physics has been done through qualitative method of grounded theory model and implemented on physics education student of Unnes academic year 2016/2017. Multiforms of representation used are verbal (V), images/diagrams (D), graph (G), and mathematically (M). High and low category students have an accurate use of graphical representation (G) of 83% and 77.78%, and medium category has accurate use of image representation (D) equal to 66%.

All various traditional arts of Banyumas area support this area to be one famous region located in the periphery of West and Central Java with its unique cultural identity. In science learning, these traditional arts are very important aspect which can be implemented as a source of analog by students thinking a science concept analogically. This paper discusses a kind of Banyumas traditional art: the ebeg, and its cultural characteristics which can play a significant role in supporting elementary school students' analogical thinking of a science material. The method used were literature and documentary studies. It is concluded that the ebeg provides many cultural characteristics which can be used as analog of elementary school science material, in terms of its music player's motion, kinds of musical instruments played and its dancer motion.

In present condition, culture is diminished, the change of social order toward the generation that has no policy and pro-sustainability; As well as the advancement of science and technology are often treated unwisely so as to excite local wisdom. It is therefore necessary to explore intra-curricular local wisdom in schools. This study aims to produce an integration model of sustainability perspectives based on local wisdom on spermatophyta material that is feasible and effective. This research uses define, design and develop stages to an integration model of sustainability perspectives based on local wisdom on spermatophyta material. The resulting product is an integration model of socio-cultural, economic and environmental sustainability perspective and formulated with preventive, preserve and build action on spermatophyta material consisting of identification and classification, metagenesis and the role of spermatophyta for human life. The integration model of sustainability perspective in learning spermatophyta based on local wisdom is considered proven to be effective in raising sustainability's awareness of high school students.

Electricity is a concept that is abstract and difficult to see by eye directly, one example electric shock, but cannot see the movement of electric current so that students have difficulty by students. A computer simulation designed to improve the understanding of the concept of the workings of the dry cell (battery). This study was conducted to 82 students (aged 18-20 years) in the experimental group by learning to use the Dry Cell Microscopic Simulation (DCMS). The result shows the improving of students’ conceptual understanding scores from post test were statistically significantly of the workings of batteries. The implication using computer simulations designed to overcome the difficulties of conceptual understanding, can effectively help students in facilitating conceptual change.

Misunderstanding of the electrical current concept has been identified and is known since many years ago, but a similar error occurs still in the students today. This research will try to uncover why the misconception that ever happened was still going on today. What important factors that contribute to the occurrence of such misconceptions and its impact on understanding and mastery on the subject of electricity.