bluuebunny/crossref_metadata_2025_split huggingface dataset:
Teachers’ perspective on the application of information and communication technology (ICT) in mathematics learning
Authors: Supianti I I , Wahyudin  , Kartasasmita B G , Nurlaelah E 
Published: November 2019

Abstract
This research aims to comprehend how the impact of ICT in mathematics learning, particularly in middle school, and to study teachers’ perspective toward implementation of ICT application in mathematics learning based on the gender of teaching teacher. The research method isdescriptive, giving questionnaires and interviewing 56 mathematics’ teacher in West Java, Indonesia. The results showed in applying ICT in mathematics learning, categories show many times 45%, ever applied 54%, and never applied 1 %.
Project based learning model with scientific approach, implementation of children’s education of nation to facing the golden generation era
Authors: Sulistyo L , Waluyo B , Rochmad  , Kartono  
Published: November 2019

Abstract
What is the project-based learning model? The project-based learning model is a learning model that uses the project (activity) as the core of learning. In this activity, students conduct exploration, assessment, interpretation, and synthesis of information to obtain various learning outcomes including knowledge, skills, and attitude. Currently learning in schools is still more focused on learning outcomes in the form of knowledge (knowledge) alone. It is very superficial, only up to the level of memory (C1) and understanding (C2) and has not been much touched on aspects of application (C3), analysis (C4), synthesis (C5), and evaluation (C6). This means that in general, learning in schools has not invited students to apply, to process every element of the concept learned to make (synthesis) generaliasi, and has not invited students to think critically on the concepts and principles that have been studied. In facing the global era and creating strong cadres of young generation cadres, educational institutions are expected to fulfill future conditions that fulfill educational qualifications such as curriculum, facilities and infrastructure, learning methods, quality of teaching staff, and management of educational institutions
Developing students’ mathematical literacy through DAPIC problem solving process
Authors: Risnanosanti  , Ristontowi  
Published: November 2019

Abstract
Students’ ability to formulate, use and interpret mathematics in various contexts is called mathematical literacy ability. Hence, the purpose of mathematics learning is not only to make students able to use and apply mathematical knowledge in solving real-world problems or situations, but also to develop students’ mathematical literacy. The process of problem solving is carried out through five stages, namely defining, evaluating, planning, implementing and communicating. These five stages are known as the DAPIC problem solving process. The development of students’ mathematical literacy can be done through the DAPIC problem solving process. In this current experimental research, learning activities were developed by using lesson study analysis and synthesis and the DAPIC problem solving process. 64 of eighth grade students from junior high school were taken as subjects of study. There were five steps done by researcher in developing learning activities, namely (1) posing problems in real life contexts, (2) solving problems either individual or in group, (3) presenting and discussing student’ works, (4) developing formal mathematics, and (5) applying mathematical knowledge. The experimental group was given treatments of learning activities based on learning plans developed by researcher, while the control group was given learning activities based on traditional learning plans. Data on students’ mathematical literacy ability were obtained through mathematical literacy tests. Based on the results of the study, it can be evidenced that the mathematical literacy ability of students in the experimental class were higher than the mathematical literacy ability of those were in control class.
Analysis of students’ critical thinking in solving geometry problem based on learning archivement
Authors: Sultra W S R Y , Usodo B , Pramudya I 
Published: November 2019

Abstract
Critical thinking ability is important for students in learning because it will help when the process of understanding, analyzing and solving problems. The purpose of this study to find out how critical thinking ability of student in solving geometry problems with high, medium, and low learning achievement. The critical thinking ability of this study consists of 5 indicators, namely (1) giving a simple explanation; (2) provide reasons for a decision; (3) conclude; (4) provide further explanation; (5) set the right strategy to solve the problem. Critical thinking ability test is given to 30 eighth grade students of SMP Negeri 2 Masaran. The method used is descriptive qualitative research with3 samples using by purposive sampling technique. The results show that students with high learning achievement can conclude and organize good strategies to solve problems. Students with medium learning achievement are completing steps that have not been optimal so that they have not achieved all the indicators of critical thinking. Students who have low learning achievement have difficulty in giving simple explanations in the early stages so they can’t solve problems and not find the right answers.
Algebraic creative thinking of undergraduate students of mathematics education program
Authors: Rochmad  , Kharis M , Agoestanto A , Zahid M Z 
Published: November 2019

Abstract
In mathematics, creative thinking is highly needed to solve a problem; one of them is an algebraic problem. This study was aimed to find out how the ability and character of algebraic creative thinking of mathematics education undergraduate students in group discussion. This study is a case study whereas the method used was a quantitative method. We obtanine that some students were not fluent in answering the problem, yet only a few students were flexible in doing that. Many students were also less able to obtain the originality of ideas and elaboration in solving the problems. Also, there were several groups of students who had creative thinking pattern namely Problem-Fluency-Flexibility-Originality-Elaboration. Additionally, this article also described some variations of students’ algebraic creative thinking characteristics in each aspect.
Improving place value ability for children with learning disability using balok pelangi ienes as Media
Authors: Efrina E , Marlina  , Maulina Y , Helsa Y 
Published: November 2019

Abstract
The use of Balok Pelangi Dienes aims to improve the ability to determine place value for students with learning disability. The ability to determine place value is profoundly needed as prerequisites in the acquisition of other mathematical concepts, such as the operation of addition, subtraction, and others. The type of the research was the experiment using singlesubject research approach with A-B-A design. The subject of the research was elementary school student in grade 5 aged 11 years old. The target behavior research was the increase of ability to determine place value through reading and writing numbers. The data of the research were measured using frequency to identify correct answers on condition of A1 (first baseline), B (intervention) and A2 (second baseline). The results showed that the frequency of student’s correct answers has significantly increased after the intervention. This was proved by the inclination of increased line direction and the small percentage of overlapping data. Therefore, the use of Balok Pelangi Dienes as media can improve the ability to determine place value for students with learning disability.
The correlation between polymorphism of TCF7L2 gene and the incidence of type 2 Diabetes in Asian: a meta analysis
Authors: Yuniastuti A , Iswari R S , Susanti R 
Published: November 2019

Abstract
Transcription Factor7-like2 (TCF7L2) geneplays a role in the control of proglucagon production which is the precursor of the glucagon-like peptide-1 (GLP-1) hormone. GLP-1 protein plays a role in the homeostasis of blood sugar levels by increasing insulin secretion. The presence of this gene variant in beta cells of the pancreas shows impaired insulin secretion in in vivo and in vitro studies.The objective of this study was to strengthen some research results related to the role of TCF7L2 gene polymorphisms in lowering insulin secretion and its correlation to the incidence of type 2 diabetes mellitus (T2DM) through an analysis. This study is a quantitative study based on a literature study (meta-analysis).The framework of the meta-analysis concept was based on the determination of odds ratio (OR), standard error (SE), determination of 95% Confidence Interval from ln (OR) and 95% for OR.Furthermore, the calculation of meta-analysis was performed. The analysis was conducted on 27 research results about TCF7L2 gene polymorphism which have been disclosed by 87 researchers in various research. Based on the results of data analysis, the correlation value was 2.6 and was in the acceptance of 95% confidence interval. Genetic and functional data indicate that the TCF7L2 gene plays an important role in insulin secretion and the intermediate phenotypes are associated with adipocytes.The TCF7L2 gene can activate special proteins that affect insulin secretion and sensitivity. The TCF7L2 protein is a transcription factor that regulates the proglucagon gene. Proglucagon is a precursor of the Glucagon-like peptide-1 (GLP-1) hormone, an insulinotropic hormone produced by enteroendocrine cells. TCF7L2 gene polymorphism plays an important role to decrease the secretion of GLP-1 and ultimately leads to decreased insulin secretion.Based on the correlation value, it can be concluded that there is a relationship between TCF7L2 gene polymorphism and the incidence of T2DM.
Acute toxicity of papaya leaf extract on Artemia salina leach larvae
Authors: Nugrahaningsih W H , Titi A , Dewi N K 
Published: November 2019

AbstractPapaya leaf has long been used as a natural medicine. It is beneficial for curing malaria, enhancing appetite, removing acnes, boosting the quality and quantity of breast milk and healing toothache. Most of the using based on their empirical experience. A preliminary test to examine papaya leaf extract’s ability as a medicine needs to be conducted, and in order to do that, a safety test must be implemented to determine its toxicity value. This research aims to determine the value of LC50 of papaya leaf aqueous extract. The Brine Shrimp Lethality Test (BSLT) method was conducted to determine acute toxicity. The 48 hours-oldArtemia salinaLeach larvaes were observed for 24 hours in sea water mixed papaya leaf extract on concentrations: 0 μg/ml, 1.000 μg/mL, 2.000 μg/mL, 5.000 μg/mL and 10.000 μg/mL. The LC50 value obtained was 88.5 mg/mL. According to BSLT, papaya leaf extract has potentially low toxicity onArtemia salinaLeach larvae.
Ethanolic leaf extracts of Waru (Hibiscus tiliaceus) inhibit biofilm formation of Vibrio alginolyticus in vitro
Authors: Suhartono S , Fitri L , Nurhaliza N , Ismail Y S , Nursanty R , Mahyuddin M , Jannah M 
Published: November 2019

Abstract
Vibriosis is still a major threat in aquaculture generating significant implications in ecology and economy. One of the ethologic agents of vibriosis is Vibrio alginolyticus that infects shrimp and fish aquaculture through biofilm-mediated. The objective of the study was to determine the biopotency of ethanolic extract of waru (Hibiscus tiliaceus) leaves to inhibit biofilm formation of V. alginolyticus in vitro. A microtiter plate biofilm assay (OD570) method was applied in this study. The treatments were the addition of ethanolic leaves extracts of waru (H. tiliaceus) at different concentrations of 2%, 4%, 8%, and 10%. The values of biofilm inhibition activity were measured as optical density data that were statistically analyzed using One Way ANOVA, followed by Tukey’s test and the tests were considered statistically significant at a P ≤ 0.05 on two-tailed. The result of this study showed that Waru leaves extract significantly inhibited the biofilm formation of V. alginolyticus. The best inhibition was shown at 10% concentration of extract signifying the potential application of waru to treat biofilm-mediated diseases in aquaculture.
Higher-order thinking skills (HOTS) in teaching and learning biology at Madrasah Aliyah
Authors: Yusuf  , Sadia I W , Suastra IW , Suharsono N 
Published: November 2019

Abstract
The study was conducted to analyze Higher-Order Thinking Skills (HOTS) in teaching and learning biology at Madrasah Aliyah in terms of planning and evaluation. Twenty four randomly selected biology teachers from eight Madrasah Aliyah in West Lombok Regence were involved in this study. The results indicated that the teachers, in general, have not understood the planning and assessment of HOTS-based teaching and learning; 6,25% of the teaching and learning objectives was HOTS-oriented, 17,19% of the teaching and learning activities was HOTS-oriented, 5,83% of the test questions was HOTS-oriented, and all of the teachers considered HOTS very important and it became the orientation of biology teaching and learning at Madrasah Aliyah.
The learning models of essential oil with science technology engineering mathematic (STEM) approach integrated ethnoscience
Authors: Sudarmin  , Sumarni W , Mursiti S 
Published: November 2019

Abstract
The topic of essential oil is one of the topics of the Natural Organic Chemistry course which discusses the meaning of essential oils and examples, isolation techniques and identification of essential oils, structural tests and the number of essential oil components. The next discussion was related to the engineering of the main compounds in essential oils, as well as the calculation of the yield of essential oil products. Learning of essential oils is still conventional, and less contextual, therefore in this study an essential oil learning with integrated science technology engineering mathematics (STEM) approach of ethnoscience and an integrated STEM approach of Ethonoscience has never been done by lecturers. This type of research is a qualitative descriptive study, the research subjects are the owners and workers in essential oil refining, with a focus on the reconstruction of Indegenous science based science knowledge and the design of the essential oil learning model with an integrated STEM approach to ethnoscience. Local essential oils used as research objects are clove oil, citronella oil, and traditionally produced patchouli oil. Data collection through interviews and observations at the traditional distillation of essential oils in Boyolali, Central Java. Data and information from interviews were carried out scientifically into scientific knowledge through a process of verification, reduction, validation, conceptualization, and documented as a source of essential oils learning with an integrated STEM Ethnoscience approach. From the results of the research and discussion, it can be concluded that (1) essential oil owners and workers have understood scientifically about the concept of essential oils, how to distill essential oils and their separation, knowledge of how to obtain good essential oil products, and calculate yield and loss of oil production volatile, (2) The learning model of essential oils with STEM approach integrated ethnoscience with project-based learning models was found, and (3) the results of the implementation of the essential oil learning model of the STEM approach integrated ethnoscience obtained positive responses and were able to improve student learning outcomes and experience.
The effectiveness of integrated science learning using cooperative learning model of group investigation type
Authors: Usmeldi  , Amini R 
Published: November 2019

Abstract
Science learning in Junior High School is conducted through theoretical, practicum rarely done. The subject matter of science is not yet integrated. The ability of students in investigating is still low, consequently there are still many students who have not mastered in learning science. One of the efforts to improve the student investigation ability is to apply cooperative learning model of group investigation type. The aim of this research is to know the effectiveness of integrated science learning to improve the student competence. The research used quasi experiment method with pre-test post-test group control design. The subject of research is eighth grade students in Junior High School. Data were collected using observation sheets, test, and a questionnaire. The results of research shows that integrated science learning effective to improve student competence, based on (1) mastery learning of integrated science has been achieved by most students, (2) improving the student’s competence including the high category, (3) the average of the students competence in the experiment class are better than the control class, (4) the majority of students stated that integrated science learning can be implemented.
Rethinking standardized test of science education in Indonesian high school
Authors: Setiawan H , Garnier K , Isnaeni W 
Published: November 2019

Abstract
The purpose of this paper is to evaluate the pros and cons of standardized test assessment of Science in High School in Indonesia. A critical review of literature was used in this paper. The literature includes the current policy issues and peer-reviewed journal article from some educational databases. The data are analysed and synthesised qualitatively. Considering the literature portrays the relationship between students and assessment by focusing on how to improve assessment practices, the national educational system of Indonesia should reconsider multiple-choice assessment in standardized-test of Indonesian National examination. The assessment might have some advantages such as affordability of administration to a large number of students, objectivity, and reliability. However, the major problems about the standardized tests are that it less measure deep thinking skills and the test scores less reflect students’ abilities or the quality of students’ learning. Standardized testing means students would have more rote memorization, but they have less time to synthesize information or apply knowledge which is the challenge in the 21st century. Therefore, it seems not wise when the test is used as the only consideration to make important decisions about students for their graduation from high school.
Best practice to improve students’ HOTS using simple tool media-based learning in group investigation model at the State Senior High School 1 Manokwari
Authors: Yusuf I , Mujasam  , Widyaningsih S W , Djalimun S 
Published: November 2019

Abstract
Classroom Action Research (CAR) has been conducted which aims to improve Higher Order Thinking Skills (HOTS) of The State Senior High School 1 Manokwari students after applying simple Group Assisted Learning (GI) learning to physics subjects of rigid body equilibrium material. The CAR model used in this study was the Kemmis and Mc Taggart models which consist of two cycles, each of which consists of 4 stages, namely planning, implementing action, observation, and reflection. The instrument used in this study was the HOTS test of students given before and after learning in each cycle and the questionnaire responses of students filled by students after learning. The data analysis technique used was descriptive analysis to describe HOTS students and Rasch model techniques using winstep and facet applications fo analyze students’ responses after learning. The results showed that there was an increase in HOTS of students in cycle 1 and cycle 2. Rasch model results show that most students have a very good response to learning. Therefore, GI learning assisted by simple props media can be applied to rigid body equilibrium material at The State Senior High School 1 Manokwari to develop HOTS students.
Android-based teaching material for straight-sides solid
Authors: Prabowo A , Anggoro R P , Rahmawati U , Rokhima N 
Published: November 2019

Abstract
Straight-sides solid subject matter was one of difficult subject matter to be understood by junior high school students in Indonesia. Developing teaching material was one of alternatives to solve that problem. This research aims to develop the application of Android-based teaching material for straight-sides solid for supporting students of junior high school in comprehend of straight-sides solid subject matter. Define, design, develop, and disseminate were the steps in developing the application. The first step of developing was identify the problem and define the product which will be developed. The next step after product defined was design the storyboard as the guidance to develop the application. Teaching experts and media experts had validated the application. They judged that the application developed was valid. The application had been disseminated to mathematics teachers and students in junior high school. Teachers stated that this application was very useful to delivered concept of straight-sides solid in junior high school while the students stated that it helped them in understanding the concepts of straight-sides solid.
Applying RADEC model in science learning to promoting students’ critical thinking in elementary school
Authors: Satria E , Sopandi W 
Published: November 2019

Abstract
Teaching to promoting critical thinking expertise is very significant for providing students to reside in the worldwide era. Critical thinking is scholarly expertise that needs direction and practice, especially for elementary school students. The lack of teachers’ skills and ability in choosing appropriate learning model in natural science learning for promoting critical thinking for students is one of the reasons to done this study. This study aims to observe and describe the improvement of the students’ critical thinking at class IV, appearing in natural science learning after implementing RADEC model in class IV SD Negeri Surialaya, Tasikmalaya, West Java as shown from the student’s comments. This research applied a descriptive method. The instrument of the research was the observation sheets of students’ critical thinking and teachers’ activities in boosting critical thinking and of course the researcher himself. The data gathered through observation. The results showed that elementary science teachers did not orient to improving critical thinking among students, as very little of the classroom students showed in critical thinking skills. The developed model this study provides can use as a tool to assess science classes regarding improving critical thinking of the elementary school students.