bluuebunny/crossref_metadata_2025_split huggingface dataset:
Enhancement higher order thinking skills in algebra by The PINTER mathematics learning model
Authors: Kurniawan Heru , Budiyono  , Sajidan  , Siswandari  
Published: June 2020

Abstract
This study aims to determine the enhancement of students’ high-level thinking skills in algebra material through the application of the PINTER mathematics learning model. The PINTER mathematics learning model was developed with the learning stages: Presentation to real life, Investigation, Team Activities, Explanation & Reasoning, and Reinforcement. This research instrument uses tests to determine the effectiveness of learning, observation to see the feasibility of the model, practicality questionnaires to determine whether the model is easy to apply, Practicality questionnaires to determine whether the model is easy to apply, and student questionnaire responses to determine student responses to the learning process. This research was conducted in 4 Junior High School (SMP) in Purworejo Regency. The stages of the study were carried out in 5 meetings where each meeting was reflected and corrected to be carried out at the next meeting. Research results show: 1) The PINTER mathematics learning model is effective for improving students’ high-level thinking skills on algebra material, 2) The PINTER mathematics learning model is practically or easy to apply by teachers, 3) the PINTER mathematics learning model gets good responses from students. Thus, PINTER’s mathematics learning model has the potential to be applied to mathematics learning, especially in efforts to enhance higher-order thinking skills.
The effect of bullying towards students grade IX learning achievement on mathematics
Authors: Afifah Indah Indi , Jaedun Amat 
Published: June 2020

Abstract
This research aims to identify the effect of bullying on students’ grade IX Mathematics learning achievement. This research adopted a quantitative method and used a descriptive approach. The subjects of this research were students grade IX of SMP Negeri 2 Narmada in the academic year of 2019/2020 with the total number of 88 students. In collecting the data, there were two resources, namely primary and secondary data, which were obtained through a questionnaire and the students’ Mathematics’ scores. The questionnaire was given directly to the students, and their mathematics’s score was collected from their report cards in grade VIII. The collected data was analyzed by using the Anova test. Based on the analysis of the data, the result shows that there are differences in students’ Mathematics’ achievement based on the intensity of them receiving the bullying. The students who have significant differences in their mathematics achievement are those who were almost never and were rarely got bullied. Furthermore, it is known that the students who were rarely get bullied have the best performance compared with those who have never get bullied and those who are often get bullied.
Analysis of mathematical creativity in mathematics learning is open ended
Authors: Isnani  , Waluya S.B. , Rochmad  , Wardono  
Published: June 2020

Abstract
The ability of mathematical creativity is needed by every mathematics education student. Mathematical creativity is an important part of Mathematics education. But the mathematical creativity of most Mathematics Education students is still low. Therefore, mathematical creativity is needed for students in Mathematics Education, especially for students who are studying Real Analysis courses. Based on the results of the Open-Ended Real Analysis course, it can be seen the quality of the students’ mathematical creativity. The purpose of this study is to analyze the location, causes, and types of student errors in doing Open-Ended Real Analysis test questions through the use of the Newman Error Analysis (NEA) medium. Newman Error Analysis includes Reading Error, Comprehension Error, Error Transformation, Skill Error Process, and Encoding Error. This research is a type of qualitative research. The subjects of this study were students taking Real Analysis courses in the Mathematics Education Study Program at Pancasakti University, Tegal Indonesia. The research subjects were 64 students. The results showed that students in doing the Open-Ended Real Analysis test questions were still confused using the theorem that was right to use. It means that students in the transformation process discuss problems and the skill process is still lacking. This is by the five types of errors / Newman Error Analysis described by experts in Mathematics Education. The new findings in this study are errors of carelessness not working on problems, and misconceptions.
The analysis of learning obstacle of mathematics belief
Authors: Kurniasih M D , Waluya S B , Rochmad  
Published: June 2020

Abstract
Mathematical beliefs are essential to be improved, especially for mathematics education students, to be more optimistic in overcoming difficulties. Accurate beliefs affect how students “welcome” mathematics lessons. However, the reality is that many mathematics education students still think that mathematics is an ambiguous, abstract, complicated, formulaic subject so that they experience excessive anxiety when learning mathematics. This study aims to knowledge and analyses the learning barriers faced by prospective teacher students in developing mathematical beliefs at FKIP UHAMKA Jakarta. The instrument used was a belief questionnaire for preservice students. This study focuses on the description of 3 (three) components of mathematical belief, namely the object of mathematics education, class context and itself.
Profile of multi-modal representation ability of junior high school students on science material in Sleman district
Authors: Chusni M M , Suranto  , Rahardjo S B , Saputro S 
Published: June 2020

Abstract
This study aims to determine the profile of multi-modal representation ability of junior high school students in science material in Sleman district. The method used in this research is a survey with a quantitative approach and document study with a qualitative approach. The object of research is 10 junior high schools with a total of 1,555 students in the Sleman district. The data used are the results of the national examinations on science learning in 2019 from the Education Assessment Center, Ministry of Education and Culture Republic of Indonesia and 40 items of the national exam documents on science subjects. The results reveal that the ability of student representation on the type of verbal-verbal questions was 50.45%, verbal-visual by 78.14%, verbal-symbolic by 66.03%, verbal-mathematical by 50.45%, visual-verbal by 72.71%, visual-visual by 76.25%, visual-symbolic by 81.57%, and visual-mathematical by 61.55%. From these results it can be concluded that the lowest student representation ability in the type of verbal-mathematical, verbal-verbal, and visual-mathematical problems.
The role of problem solving model integrated with collaborative to increase student’s learning outcomes on buffer solution
Authors: Suyanti Retno Dwi , Sinaga Eli Maitya Rahayu Br , Ratu Evina D 
Published: June 2020

Abstract
This research aims to determine whether there are differences in student learning outcomes learned using the problem Solving integrated with collaborative learning model compared to students who are taught by the conventional learning model on the subject of buffer solution. The sample was determined by the random sampling which took 2 classes which were used as the experimental class. This study used the quasi-experimental method. Test that use valid instruments and reliable (0.814). Based on test data requirement, showed that pretest and posttest value of control class and experiment class has been normal distributed and homogeneous. Hypothesis test with significant level 0.05 to increased student’s learning outcomes has been got tcount > ttable, its meant Ha accepted that student’s learning outcomes that has been learned by problem solving integrated with collaborative model higher than student’s learning outcomes that has been taught with conventional model. The result of observation sheet show that the learning process based on Lesson Study in this research is obtained that the student are less in saying the opinion just 75% of the student that stay saying the opinion in the class. While there are 83% of students that working together in “U” form seat.
Mathematical representation ability using website for learning transformation geometry in a teacher education classroom
Authors: Asnawati S , Dewi ILK 
Published: June 2020

Abstract
The importance of mathematical representation ability is help student to describes thinking processes that has be done by students in order to understand concept, operation, and student ideas. Seeing the importance of student’s mathematical representation abilities in learning transformation geometry, the use of websites is expected to help students to illustrate their ideas. The purpose of this research is to find out the difference between learning with using website and learning without website. The population of the study were all students of grade II of 2 classes. Sample taken with purposive sampling, one class is experiment class and one other is control class. Data were analyzed using descriptive statistical and t-test. The result showed that achivement of mathematical representation is difference between learning using and without website.
The effectiveness of using Edmodo based e-learning in the applied mechanics course
Authors: Wibowo W , Astriawati N 
Published: June 2020

Abstract
This study aims to investigate: 1) The differences in learning outcomes between the cadets who were taught by using Edmodo-based e-learning and those who were taught by using face-to-face conventional instruction; and 2) The effectiveness of using Edmodo-based e-learning on learning outcomes of cadets. This study was quasi-experimental research involving 39 cadets of the Technica Study Program in the even semester in the academic year of 2018/2019. The assessment was gained from the learning outcomes of the cadets before the treatment (pre-test) and after the treatment (post-test). The data were then analyzed using a t-test to determine differences in the cadets’ learning outcomes and n-gain test to determine the effectiveness of using Edmodo based e-learning in learning outcomes compared to the use of conventional face-to-face instruction. The results of this study showed that: 1) There is a significant improvement in the learning outcomes of the cadets who were taught by using Edmodo-based e-learning compared to those who were taught by using conventional face-to-face instruction with the post-test score of 92.89 for the experimental class and 78.35 for the control class, and 2) The use of Edmodo based e-learning in the Applied Mechanics course was considered quite effective as the value of the n-gain test reached 75.82% for the experimental class. As the use of Edmodo-based e-learning has a very positive impact on improving the learning outcomes of the cadets, this learning media is feasible to be applied to support the learning process.
The Effect of Learning Environment and Learning Motivation for Vocational College’s Employability Skills
Authors: Widiyanti  , Marsono  , Edy Duwi Leksono , Rifqi Muhammad Riza 
Published: June 2020

Abstract
This study aims to determine the effect of learning environment on the achievement of employability skills, determine the effect of learning motivation on the achievement of employability skills, and determine the effect of learning environment and learning motivation on the achievement of employability skills. This research was conducted at the Pandaan Textile Vocational School. This study uses the ex post facto method. Based on the results of data analysis, it is concluded that there is a significant effect of the learning environment on the achievement of students ‘employability skills, there is a significant effect of learning motivation on the achievement of students’ employability skills, there is a significant effect on the learning environment and learning motivation towards the achievement of students’ employability skills.
Development of Science Learning Model towards Society 5.0: A Conceptual Model
Authors: Sajidan  , Saputro Sulistyo , Perdana Ryzal , Atmojo Idam Ragil Widianto , Nugraha Dewanta Arya 
Published: June 2020

Abstract
The development of the world of education is entering a very important period. Not only to provide quality and optimal education services. But it is also an important period that will determine the continuation of education itself. The mastery of abilities and skills needed by the future is the responsibility of the education world. The future with the construction of Community 5.0 requires schools to transform teacher-centered learning into student-centered learning so that students can think critically, deductively, and inductively in learning science in the era of disruption. Learning system through rote learning is not following the learning paradigm, which emphasizes cognitive understanding. Therefore, an appropriate learning model is needed to overcome the problem of the discrepancy of the paradigm of community learning 5.0. As a strategic stage of achieving competence, learning activities need to be designed and implemented effectively and efficiently to obtain maximum results. One research method that can be done to develop a learning model by applying the steps of the Research and Development (R & D) research procedure. Conceptual models that have been developed in welcoming 5.0 are Social Inquiry Complex (ISC), and Creativity-Based Learning Skill Entrepreneurship (CEL-BaDiS).
The effect of using mathematics learning assessment books on higher order thinking skills based towards the ability of assessment instruments arrangement at elementary school teachers
Authors: Surya A , Sularmi  , Istiyati S 
Published: June 2020

Abstract
The purpose of this study is to examine the effectiveness of using mathematics learning assessment books based on higher order thinking skills (HOTS) towards the ability of assessment instruments arrangement at elementary school teachers. It is a quasi-experimental research with nonequivalent comparison-group design. The population in this study were 225 elementary school teachers from Ngawi regency, Sukoharjo regency and Surakarta City. By using a random sampling technique, the sample in this study was 125 elementary school teachers in Ngawi Regency. The technique of collecting the data was obtained through test. In analyzing the data, it applied T test technique with a significance level of 0.05. The results of this study indicate that there were differences in the ability of assessment instruments arrangement between teachers who use HOTS-based mathematics learning assessment books and manual one by tcounts <ttable (-18 <1,657. Therefore, the book can be used as a reference in preparing HOTS-based mathematics learning assessment instruments.
Red Chili Agribusiness and the Risks Faced by the Farmers
Authors: Karyani T , Susanto A , Djuwendah E , Hapsari H 
Published: June 2020

Abstract
Red chili is a commodity with high economic value, yet it has high risks. It can be observed from the price fluctuation as a result of the unstable supply, while it has a high demand from the consumers. In red chili agribusiness, farmers are one of the actors who play a role in the on-farm sub-systems, but their performance is affected by other sub-systems. Therefore, it is important to study the level of the risks, the sources of the risks, and the weakest sub-system in the red chili agribusiness. This research was conducted in Sukalaksana Village, Banyuresmi District, Garut Regency, which is one of the red chili production centers in Indonesia. The research was performed using a survey method with a descriptive analysis technique and a risk analysis. The results showed that the red chili farming possesses high risks, shown by the coefficient of variation (CV) of production risk (CV = 0.69), cost risk (CV = 1.25), and income risk (CV = 2.11). The main source of risks in the red chili farming is weather changes, which make the chilies very prone to pests and diseases. Meanwhile, the weakest sub-system in the red chili agribusiness is marketing sub-system because the farmers have to face a monopsonistic market, namely a middleman, which creates an income risk. Therefore, the farmers need assistances to perform risk mitigation, and there have to be institutional supports to increase their bargaining position.
Change on Production and Income of Red Chili Farmers
Authors: Saidah Zumi , Harianto  , Hartoyo Sri , Asmarantaka Ratna Winandi 
Published: June 2020

Abstract
Climate change in the farming of red chili can cause a significant decrease in production as a result of high pest and drought attacks. The study wanted to find out the impact of climate change on the production and income of red chili which was carried out starting from planting to harvest in Garut Regency, West Java Province. Qualitative analysis is used to analyze the use of production inputs in red chili farming. Farmer income is done by analyzing agricultural income, while the factors that influence red Chilean production are analyzed using logistic regression. This finding concludes that the effects of climate change affect production efficiency and red chili income. This can be seen from the large value of the R/C ratio in red chili farming both in the dry season and in the rainy season is still greater than one. This means that the cultivation of red chili is still feasible to be developed. Besides, increased production of red chili farming has the opportunity to be increased by increasing the use of production inputs such as land area, fertilizer and labor use.
The Effectiveness of Fruit Extract and Temperature for In Vitro Culture of Kepok Banana (Musa balbisiana)
Authors: Rachmi D. , Samanhudi  , Purnomo D. 
Published: June 2020

Abstract
Kepok Banana (Musa balbisiana) is beneficial in fulfilling nutrition for it has a high B vitamin complex. Additionally, it is of high economic value as a food processing material. Bananas as processed ingredients for industrial scale are constrained by unsustainable production. Thus, efforts are needed to supply quality, uniform seeds and meet cropping patterns. In vitro culture technique is an innovation in meeting the availability of standardized banana seed sources. This study aimed to examine the effectiveness of fruit extracts and temperature differences for in vitro culture in Kepok banana. Murashige and Skoog (MS) base media were used in the multiplication stage with the addition of melon, banana, and papaya extracts (150 g.L−1). The explants were stored at various growth room temperatures (±25, ±28, and ±31°C). The results showed that the Kepok banana explants morphogenesis using MS media enriched with papaya extract gave no difference effectivity result with vitamin synthesis in the parameters of number of shoots (4), number of leaves (7), number of roots (7.3), and length roots (6.3 cm) and showed the highest results with parameter height of plantlets (9 cm). The best condition for the proliferation of Kepok banana explants was room temperature (±28°C).
Factors Affecting The Quality Financial Statement of Badan Usaha Milik Desa (Bumdes)
Authors: Ginanjar Y , Hernita N , Riyadi W , Rahmayani M W 
Published: June 2020

Abstract
Effective and efficient financial management plays an important role in the sustainability of BUMDes (village-owned enterprises). Unfortunately, most of BUMDes financial statements quality vary and not in accordance with the standards. As a result, BUMDes does not run well as it should. This study aims to identify factors causing a different level of quality of financial statements and is conducted using descriptive and verification methods. The population of this research is 150 BUMDes and it applies Slovin’s formula sampling technique to obtain 109 BUMDes research samples spread in various villages in Majalengka Regency, West Java Province, Indonesia. Data analysis tools used are research instrument test, classical assumptions, correlations, determination, and hypothesis testing. The results show that the use of information systems, the understanding of accounting standards, and the role of assistance/companion have a significant effect both partially and simultaneously on the quality of financial statements with contributions of 77%.
The Development Strategy of Puncak Damar Ecotourism
Authors: Djuwendah E , Karyani T , Wulandari E , Prakarsa B 
Published: June 2020

Abstract
Sumedang District in West Java is aggressively developing tourism potential. The various types of tourist attractions and the number of visitors in Sumedang have a huge potential for tourism development. Puncak Damar in Sumedang has potential in the development of ecotourism. However, the utilization of ecotourism of Puncak Damar is not ideal yet. This study aimed to seek strategy to develop Puncak Damar-ecotourism-based by conducting SWOT and QSPM analysis. The results of the analysis showed that Puncak Damar had not been ideal yet in developing ecotourism concept since the utilization of the strengths and opportunities had not ideal and could not reduce the weaknesses and threats. The results of the IFE and EFE analysis with a total score of 2,377 and 2,549 respectively indicated that the Puncak damar ecotourism was in the fifth quadrant position. This meant that the strategies used are hold and maintained by product development and penetrating markets. The alternative strategy suggested by this study was to improve the infrastructure and facilities to support ecotourism in maximizing attractiveness and to have a good coordination among managers.
Physical and Chemical Characteristics of An Organic Nanoparticle Synthesized from Gmelina (Gmelina arborea Roxb) Wood Bark
Authors: Sutrisno  , Alamsyah E M , Syamsudin T S , Purwasasmita B S , Suzuki S , Kobori H 
Published: June 2020

AbstractThe objective of this research is to investigate the characteristics of an organic nanoparticle produced from Gmelina wood bark using ball milling with liquid nitrogen treatment. In this study Gmelina wood bark was converted into nanoparticles using the ball milling method for 96 h and then filtered using four types of sieves (T77, T90, T120, and T200). These nanoparticles were characterized by particle size, morphology, chemical components, functional groups, and crystallinity using TEM, SEM, SEM-EDS, FTIR and XRD. The process resulted in nanosized organic material produced from Gmelina wood bark, with diameter sizes less than 1000 nm. The existence of carbon, oxygen, potassium, and calcium were observed from the SEM-EDS analysis. The FTIR analysis showed the presence of C-O-C in a plane and symmetric band at 829 cm−1for the nanoparticle produced from the T200 sieve type, while not observed in the nanoparticle produced from T77, T90 and T120 of sieve types. The crystalline structure as obtained from the XRD analysis contained calcium oxalate hydrate (C2CaO4.H2O) with a 20 nm crystalline diameter size that was produced using the T77 and T200 sieve types.