bluuebunny/crossref_metadata_2025 huggingface dataset:
Analysis intrapersonal intelligence of student’s post chemistry learning based guided inquiry model on the buffer material
Authors: Wardani S , Zakiyah K A , Prasetya A T , Haryani S
Published: November 2019

This study aims to analyze the intrapersonal intelligence of students after the treatment of guided inquiry-based chemistry learning on buffer solution material. The type of research used is a case study with a descriptive analysis approach and the sample is taken using purposive sampling technique. The sample group used in this study is class XI IPA consisting of 32 students. The study was conducted in four meetings where each meeting used guided inquiry learning models and discussion and task learning methods. Intrapersonal intelligence is measured from individual daily tasks and supported by an intrapersonal scale to classify intrapersonal intelligence levels. The results of the analysis of the average value of individual tasks achieved by students increased during 4 consecutive meetings namely 51.11; 55.78; 70.05; 83.47. The results of the intrapersonal scale analysis were good and the data obtained from intrapersonal calcifications 0 students were very good, 27 students were good, 5 students were sufficient, and 0 students were less.
An analysis of the employment trends in Central Java province
Authors: Subanti S , Hakim A R , Pratiwi H , Sucahyo U S , Kurniati E D
Published: November 2019

This paper aims to provide a descriptive explanation about the employment trends in Central Java Province. Using some publication from Central Bureau of Statistics, starts from 2014 until 2017. This paper found that (1) the creation of formal employment is still not sufficient to increase population aged 15 and above; (2) the outcomes of employment still tend to fluctuate to decrease throughout the year; (3) the outcomes tend to concentrated among employment of aged 25 years and female in rural areas; and (4) the service sector and the financial sector accelerate employment growth and an improve the employment elasticity. The suggestion of this study is the local governments still have to maintain the continuity of the momentum of economic growth and the labor market, with a focus on strengthening the job creation needed. The projected workforce population continues to grow with the dominance of the millennial generation above and the high penetration of the digital economy, so it needs to be a major component in the employment development strategy in Central Java Province.
Findings on the evaluation of character values in Math Education Department of Guangxi Normal University – China
Authors: T Sumaryanto F , Ahmadi F , Sugiman  , Yuanbing G
Published: November 2019

UNNES has Regulation of Rector, No. 19 Year 2016, which contains 12 ethics/characters for students. So, lecturers need to know how to evaluate the character values. While Guangxi Normal University (GXNU) of China is known to have some Ethics too for university level. Its follow up, then we need go to a university in China, namely: Guangxi Normal University (GXNU) and Prof. Dr. Guo Yuanbing as our Partner Lecturer. Questions: How does Mathematics lecturer at GXNU evaluate the values of the characters that grow on the students? Method of this research is Qualitative approach. The research subjects: Some of Local Students of GXNU were selected and some of GXNU lecturers. Main activities in GXNU: With guided by Prof. Dr. Guo Yuanbing, we do observation in class, interviews, triangulation, and Focus Group Discussion (FGD) in GXNU. The results: There were 5 character values in GXNU, which became the focus of GXNU’s lecturers to be evaluated, namely: (1) Civility, (2) Harmony. (3) Freedom. (4) Rule of Law. (5) Integrity. In addition, also found how GXNU Mathematics lecturer in assessing the growth of student characters.
Cusp bifurcation on cervical cancer mathematical model
Authors: Asih T S N , Widodo  , Aryati L , Kusumo F A
Published: November 2019

There are some conditions for the existences of the equilibrium points on cervical cancer mathematical model and their local stability. In this paper we make continuation on some parameter to find a bifurcation phenomena. Bifurcation is the appearance of a topologically non-equivalent phase portrait under variation of parameters. While we make continuation on parameter maximum invasion rate together with continuation on infection rate, we find a Cusp Bifurcation. Cusp bifurcation is a condition where two-bifurcation curve are met. First we do the continuation by AUTO to detect the bifurcation. Further we do some analysis and simulation by Matlab and then make some interpretation for these phenomena.
Determining ways to improve critical thinking skills in the math mathematics in student style
Authors: Ulfiana Ela , Mardiyana  , Triyanto
Published: November 2019

The problem faced by teachers in SMP Negeri 2 kebakkramat is the mastery of students in triangular material, especially in instilling concepts in a limited time in the learning process. Although the provision of material determines the completeness of learning, the reality of achieving the learning objectives is far from what is expected based on the KKM. It was conducted at Junior High School (SMP) Negeri 2 Kebakkramat in academic year 2017/2018 by using purposive sampling technique to select the participants. Hence, the selected research subjects were 2 students. The results of the study show that students’ critical thinking skills are still relatively low. The way to improve students’ critical thinking skills in solving mathematical problems in learning styles one of the strategies that teachers can do is student-centered learning and optimizing on each student’s learning style.
Profile of students mathematic connection ability managed in vocational high school
Authors: Fatimah F N , Riyadi  , Sari D R
Published: November 2019

Mathematic connection is part mathematic thinking competence meant as the interrelationship of mathematic concept internally. The study aimed to investigate the students’ profile of managed mathematic conection in SMK Pelayaran. The study was qualitative with test method. The subject of the study was ten class year student consisting of three persons having different mathematic connection competence in SMK Pelayaran. The result of the study that students having high managed mathematic connection competence had characteristics of: 1) Able to identify problem other to mathematic concept, 2) able to identify concepts mathematic, 3) able to apply mathematic outside of mathematic context, 4) Able to determine basic mathematic to solve the problems, 5) able to understand mathematic concept was interrelated. Students with managed mathematic concept competence had characteristics of: 1) able to identify in other to mathematic concept, 2) able to identify concepts in mathematics, 3) able to apply mathematic outside mathematics context, 4) Able determine mathematic concepts. Low competence of mathematic connection students had characteristics: 1) not able to identify in other to mathematic, 2) unable to identify concepts in mathematics, 3) less ability in applying mathematic outside mathematics context . 4) Unable determine mathematic concept.
Increasing conceptual understanding and procedural fluency on teaching polyhedrons using blended learning strategy: a case study on 8th grader of SMP N 1 Sukawati
Authors: Sudiarta I G P , Nugraha D G A P
Published: November 2019

This study aims to improve the conceptual understanding and procedural fluency in learning Polyhedrons using blended learning strategy. A blended learning strategy was done by combining face-to-face and online learning using Edmodo. The subject of this study consisted of 34 students of 8th Grader (14 males and 20 females) of SMP Negeri 1 Sukawati in the academic year 2017/2018. The study had taken place for 8 weeks (2-Cycles) on the topic of Polyhedrons. The research data were conceptual understanding and procedural fluency measured quantitatively by test and then coded, analyzed qualitatively using content analysis techniques of students’ posts on online discussion. The results showed that (a) a very good category of conceptual understanding (score 88) and a good category of procedural fluency (score 75) had been achieved quantitatively, (b) Qualitatively, there was also an improvement in the quality of conceptual understanding and procedural fluency found on the student online discussion’ posts. Of all 797 posts, there were 31.7% questions and 68.3% answers that significantly indicated a good conceptual understanding (39.65%) and procedural fluency (29.9%) on teaching Polyhedrons.
Nationalism and integrity values in teaching-learning process of mathematics at elementary school of Japan
Authors: Suyitno H , Zaenuri  , Sugiharti E , Suyitno A , Baba T
Published: November 2019

The values of Nationalism and Integrity are very important to be grown in the young generation. Japan has succeeded in strengthening those values through education in schools. Therefore, it is necessary to do collaborative research between the Research Team of Universitas Negeri Semarang (UNNES) with the partner lecturer from Hiroshima University, that is Prof. Takuya Baba, Ph.D. The problem: How to integrate the values of Nationalism and Integrity in mathematics teaching-learning process at Miyauchi Elementary School of Hiroshima? The research method uses a qualitative approach with the research subjects of Miyauchi Elementary School teachers were selected. The main activity in Japan: observation, interviews, and Focus Group Discussion (FGD) in Miyauchi Elementary School, guided by the partner lecturer. The results of this research: (1) Nationalism and Integrity values has been instilled through families traditionally. (2) Schools apply Nationalism and Integrity values in real context through the learning process, including in the mathematics learning. (3) Courtesy and discipline were also planted in the classroom and has been entrenched among teacher-students. (4) When the student answers the teacher’s question, the students immediately stand up and salute by bowing, then respond.
Quantum teaching learning model as solution to improve learning activity and mathematics learning outcome
Authors: Jayantika I G A N T , Parmithi N N , Dyanawati N P A
Published: November 2019

Most of students at X class MIA 1 Senior High School PGRI 4 Denpasar can not reach the minimum requirements criteria. It’s caused of lack of attention of students on the learning process, and lack of collaboration of subject matter with student’s reality life. One effort can be taken to improve learning activity and Mathematics learning outcome was by apply Quantum Teaching Learning Model. This study aims to improve learning activity and Mathematics learning outcome students. This study was a classroom action research conducted in 2 cycles with the subject of research was all of students at X class MIA 1 Senior High School PGRI 4 Denpasar Lesson 2017/2018 which consists of 46 students. The objects in this study was learning activity and Mathematics learning outcome. Learning activity data obtained by observation sheet while data of Mathematics learning outcome obtained by test technique. The result of this study concluded that quantum teaching learning model is a solution to improve learning activity and Mathematics learning outcome of students especially at X class MIA 1 Senior High School PGRI 4 Denpasar. Other school which have similar problem can apply this model to solve the problem.
Cognitive obstacles in interiorization of the Riemann’s Sum concept through APOS approach
Authors: Nisa L C , Waluya S B , Kartono  , Mariani S
Published: November 2019

The APOS approach in mathematics learning has been developed by Dubinsky and has been applied in many studies. Instructional to build the concept through the stages of Action - Process - Objects and Schema do not always run well as genetic decomposition that has been built. This study explores students’ cognitive difficulties in learning advanced mathematics on the Riemanns Sum, particularly in the process of interiorization Action into Processes. The subject of research is first year student of UIN Walisongo Semarang and the study was conducted in the first half of 2018. The data were taken using observation, tests and interviews. The results of the qualitative analysis show that students got the Action well but failed to interiorize it into Process due to the inability to connect two-dimensional knowledge with the given partition. It was showed when students could not find rectangular elements on a partition built from the area under the curve with a particular function. Unexpectedly, even though students understand the problem and the student could not use the given function y=f(x) to determine the partition height. Furthermore, students got an obstacle to imagine adding partitions when the number of partitions approach to infinity. The transition from school mathematics to advanced mathematics is perceived when students represent their knowledge partially, instead understanding the problem as a whole interrelated concept. This constraint also indicates the importance of mathematical connections and mastery of prerequisite materials to construct the further concepts.
Analysis of building energy efficiency dataset using naive bayes classification classifier
Authors: Prasetiyo B , Alamsyah  , Muslim M A
Published: November 2019

The phenomenon of global warming has become a very important and serious issue in recent years. One effort to reduce emissions by applying the green architecture concept to buildings. The purpose of this paper is to classify energy efficiency data sets. The method used by the Naïve Bayesian Classifier algorithm. Results obtained by Kappa statistics Y1 (0.3357) and Y2 (0.4203); Mean absolute error Y1 (0,0368), Y2 (0,0335); Root mean squared error Y1(0,1491), Y2(0,1412). The results of the analysis showed overall height, relative compactness, wall area, and glazing area affected the heating and cooling loads, while the surface area affected the heating load and the roof area affected the cooling load.
Influence of camera types in histogram distribution on morphological identification of myeloblast cell based image segmentation
Authors: Supriyanti R , Rifai A , Ramadhani Y , Siswandari W
Published: November 2019

A histogram is a graphical display that shows how often the data appears in a data set. In a digital image processing, it becomes necessary to determine the follow-up process to be performed. This paper will discuss the effect of camera types in myeloblast cell identification especially about the effect of histogram distribution on the whole process of myeloblast cell image segmentation. This is a part of our research in identifying white blood cells in the development of computer aided diagnosis for the identification of blood disorders leading to leukemia for rural areas. On the system we are developing, we use the camera as the primary tool in data acquisition. The camera is placed on a conventional microscope. We proposed four types of camera. The result show that camera type 2 has excellent image quality and pixel value. Therefore, in order to develop computer aided diagnosis as a leucocyte classification tool, we recommend to use camera type 2.
The development of textbooks for mobile application programming
Authors: Hendikawati P , Zahid M Z , Arifudin R
Published: November 2019

Learning mobile programming has become more popular since advance in technology makes mobile phone more critical for every person. Meanwhile, the independence of student in learning the course is essential regarding the learning independence might make students more successful in learning. This study aims to develop and produce a book that will be used as a source in Mobile Programming Course. The four-step development model by Thiagarajan, Semmel, & Semmel was used as a development framework. The result shows that the book has passed all the development stage successfully which means that the book is ready to be used in the course.
Optimization of C4.5 algorithm using meta learning in diagnosing of chronic kidney diseases
Authors: Nurzahputra A , Muslim M A , Prasetiyo B
Published: November 2019

The accuracy in diagnosing a disease is very important and crucial for the hospital institution. The big patient data can be processed into information to diagnose a disease. One of diseases can be diagnosed is chronic kidney disease. The existing data of chronic kidney disease patients can be used for data processing. Data processing is included in the process of data mining. One method that can be implemented to disease diagnosis, namely classification. The algorithm used in this research is decision tree namely C4.5 algorithm. It can be applied in classifying patient data. This study used Chronic Kidney Disease (CKD) dataset. The purpose of this study is optimizing the accuracy of C4.5 algorithm by applying meta learning in diagnosing CKD by comparing the results before and after MultiboostAB and Bagging applied. The validation used 10 fold cross validation. The accuracy is measured by confusion matrix. The combination of C4.5 and MulitboostAB obtained 99.5% accuracy which increased 0.5% from accuracy of C4.5 standalone. Then, C4.5 and Bagging obtained 100% accuracy. The result of this research is the application of bagging on C4.5 algorithm is good in optimizing accuracy.
Glutathione and malondialdehyde levels in gas station attendants of Semarang city
Authors: Dewi N K , Ayuniastuti
Published: November 2019

Gas station is one of the environments with thehighest oxidant content such as toluene, benzene, xylene or polycyclic aromatic hydrocarbons (PAHs), forming as free radicals. Glutathione (GSH) as the antioxidant plays a role in capturing free radicals in order to prevent the cell from damage.The objective of this study was to determine the GSH and MDA levels in gas station attendants of Semarang City. This study was an analytic observational and cross-sectional study conducted from April to August 2017. The blood samples were obtained from 34 gas station attendants and 22 volunteers who live in the countryside as the control group. Blood samples were analyzed by using ELISA kit to determine the GSH levels biochemically. Measurement of MDA levels were conducted using the Thiobarbituric Acid Reactive Substance (TBARSC). The results showed that the average GSH level in gas station attendants was 0.587 μg/mL and in controls was 0.208 μg/mL. While the average MDA level in gas station attendants was 2.55nmol/mL and in controls was 0.827 nmol/mL. Statistical test result of GSH levels showed the significant value p = 0.000, and for MDA levels p=0,001. There is a relationship between working in gas station and GSH and MDA levels.
Using problem-based worksheet on human reproductive system for improving student thinking skills
Authors: Isnaeni W , Anggiana D P Y , Praseyto A P B , Nugrahaningsih W H
Published: November 2019

The aims of this study were to determine (1) the effect of Problem-based Student Worksheet on Human Reproductive Systems upon students’ Higher Order Thinking Skills (HOTS) and (2) to analise the contribution of Problem-based Student Worksheet on students’ HOTS. This classroom research used non-equivalent control group design. Population of students involved in this study was approximately 252 grade XI Math and Science students (MIA) from the public senior highschool at Pati, Sekolah Menengah Atas Negeri 2 Pati in the second semester of the academic year 2016/2017. Students as research sample were collected by purposive sampling technique, by which MIA 4 students were chosen either as the treated group or the control one. Score of students’ HOTS as dependent variables were collected by written tests consisting of 10 free-response questions. The other dependent variable, namely the scores of problem-solving skills, were measured by questionaires provided by the Problem-based Student Worksheet, administered only for the treated class. Data obtained were analyzed using t-test and correlation test. The findings showed that the Problem-based Student Worksheet affected the students’ HOTS (coefficient value of 0.809). In sum the higher score of problem-solving skills was the higher score of students’ HOTS.
The profile of students’ scientific literacy in competence aspect in junior high school of Yogyakarta city
Authors: Widowati A , Widyastuti L , Widodo E
Published: November 2019

This research was conducted to describe the students’ scientific literacy profile for the competence aspect in general, and each sub-aspect of scientific literacy competence for the students of grade VIII in junior high school of Yogyakarta city and how the sequence of scientific literacy acquisition for student competence aspect based on the favorite ranking of the school. This research is a descriptive quantitative design research with research is survey method. This research was conducted in six public junior high schools located in Yogyakarta with different favorite ranking. The sample of this research is 200 students. The sample is determined by purposive sampling technique based on favorite ratings and research permit. The results of the research indicate that the literacy profile of science on competency aspect, in general, is still lacking. In detail, for the sub-aspect of scientific literacy ability other aspects of competence that is evaluating and designing scientific questions and interpreting scientific evidence and data is still lacking, even for sub aspect ability to explain the phenomenon in a scientific way which still very less. Ranking aspects of the competence of scientific literacy sequentially from top to bottom linearity according to the school’s favorite rating.
Effect of STEM mobile learning package on ecosystem upon students’ science and technology literacy
Authors: Ngabekti S , Prasetyo A P B , Sulistyorini S , Teampanpong J
Published: November 2019

This study aimed to identify the effect of the STEM Mobile Learning Package on Ecosystem upon students’ science and technology literacies. STEM Mobile Learning Packagedeveloped with R&D design was validated as a teaching model with good criteria’ by both the media and biology content experts.Based on the student assessment, the legibility aspect of this STEM mobile learning package was also classified as very good. The implementation of this learning package was then assessed by the biology and natural Science students from the Unnes faculty of mathematics, and sciencesstudents (FMIPA) as research participants. Data were analyzed descriptively by both qualitative and quantitativemethods. The findings showed that STEM Mobile Learning Package on Ecosystem was effective in terms of the student science literacy, ranged from 64.6 to 98.6. The highest achievement of student technology literacy was 92 with an average score of 70.32. In sum, the STEM Mobile Learning Package on Ecosystem was effective in developing students’ science and technology literacy. It is suggested that some learning packages be studied independently, other certain topics be directly presented by off-line orface-to-face discussion.
Analysis of mathematical critical thinking ability of students based on diagnostic assessment
Authors: Kartono  , Mulyono  , Waluya S B
Published: November 2019

The purposes of this study are 1) to describe the level of students’ critical thinking ability in learning Complex Analysis based on the results of diagnostic assessments, 2) to identify errors experienced by students in solving problems that measure mathematical critical thinking ability in learning Complex Analysis based on the results of diagnostic assessment, and 3) to determine instructional therapy for students who experience errors in solving problems that measure mathematical critical thinking ability in learning Complex Analysis based on results diagnostic assessment. The research design uses a combination of quantitative and qualitative research, with simultaneous models not balanced. The population of the research was Mathematics Department students of FMIPA UNNES in 2017/2018 who had participated in complex analysis studies consisting of two classes with a population size of 68. The samples were randomly selected from two classes with a sample size of 33. The four subjects were selected from two levels. Criticaland normal of each of the two students. Data were analysed quantitatively and qualitatively. The results of the study show that student learning outcomes on achieving critical mathematical thinking ability in complex analysis learning are complete. There are two levels of students’ critical thinking ability, namely critical and normal levels. The results of the analysis of students’ mathematical critical thinking ability, subject to a critical level, there are four indicators of questions that have not been reached. These indicators include aspects of assumptions, deductions, interpretations, and judging arguments. Subjects are of normal level, there are eleven indicators of questions that have not been reached. These indicators include all aspects of mathematical critical thinking ability namely, inferential, assumptions, deductions, interpretations, and judging arguments. The diagnosis of errors found that subjects with normal levels experienced errors of all types, namely errors of understanding, process, conclusion, transformation, and carelessness, as well as lack of material mastery. Subjects with critical levels experience misunderstanding and conclusions.
Improved professionalism of teachers through CAR based thematic integrative learning with realistic-scientific approach using e-schoology
Authors: Wardono  , Mariani S , Sunarmi
Published: November 2019

Science and technology program for elementary school teachers Kalicari Semarang with difficulties in integrative thematic learning based on realistic-scientific approach using schoology (TIRSS). Program objectives to solve problems; (1) how to overcome the difficulties of elementary school teachers in elementary school Kalicari 01-02 in developing a valid and practical TIRSS learning tool ; (2) how to overcome the difficulties of Kalicari elementary school teachers 01-02 in implementing TIRSS?; (3) how to improve the professional competence of teachers that can make better student learning outcomes. Targeted audiences are elementary teachers in elementary school Kalicari 01-02 Semarang. To achieve the purpose of this activity using several methods; (1) observation; (2) a test to determine the level of knowledge, understanding, skills of CAR based on TIRSS learning on pre-training and post-training conditions; (3) questionnaires to find out the extent to which teacher learning has applied TIRSS learning; (4) training methods for planting concept of CAR based TIRSS learning; (5) assignment and mentoring make CAR proposal and implement CAR in class (6) focused observation method to know teacher profession competency. The result; (1) there is an increased knowledge, understanding and skills of teachers on CAR based TIRSS learning that can overcome difficulties in developing a valid and practical TIRSS learning tools, and implement learning in the classroom; (2) The improvement of professional competence of elementary school teachers after the training and mentoring CAR based on TIRSS learning is predicted to improve mathematics learning outcomes of elementary students.
Smoking behavior and learning outcomes in student of senior high school on respiratory system with PjBL
Authors: Lisdiana  , Isnaeni W , Anggarani D
Published: November 2019

The Goals of this research is to analyze smoking behavior and learning outcomes in students of senior High school after receiving learning system of respiration with PjBL. The kind of research is Quasi Experiment with Non Equivalent Control Group design. Two classes as samples taken with purposive sampling. First class with PjBL and second class without PjBL. The methods of it taken data by observation, documentation, tests, questionnaires, and interviews. T-test analysis on smoking behavior and learning outcomes show that the two classes are significantly different. The average of N-gain class PjBL is 0.73 high category and non PjBL class is 0.57 medium category. The result of Product Moment analysis on class PjBL shows that r = 0.580 indicates there is positive correlation of medium category, on non PjBL there is nothing relationship. Based on the results of the study concluded that PjBL on learning respiratory system significantly influence for smoking behavior and learning outcomes in student of senior high school and there is also a positive correlation with moderate category between learning outcomes and smoking behavior in the PjBL class and nothing relationship between learning outcomes and smoking behavior in non-PJBL classes.
Digital storytelling based on natural environment exploration to improve the mastery of classification concepts
Authors: Dewi N R , Nurkhalisa S , Savitri E N , Wibowo S W A , Dwijayanti I
Published: November 2019

This article aimed to discussing the use of Digital Storytelling in enhancing students’ concept mastery. This study employed a literature review, while the researchers obtained the data from a variety of sources which were reduced afterward. The research results revealed that there were four implementation stages of the activities in Digital Storytelling-based learning with Natural Environment Exploration approach. The lesson activities assisted the students to comprehend the concepts since the learning emphasized on scientific facts. Therefore, these activities could help the learners having diverse visions, studying various concepts, and linking them directly to the real life which made the learning contextual. It concluded that the Digital Storytelling-based learning with Natural Environment Exploration approach could improve the students’ concept mastery on the Classification topic.
Natural experience approach in science learning: An impact study of socialization to the science teacher
Authors: Ridlo S , Ngabekti S , Isnaeni W , Prasetyo A P B
Published: November 2019

This study aims to describe the results of the socialization of natural experience (jelajah alam sekitar, JAS) approaches on the learning held by science teachers’ members of MGMP IPA sub rayon 04 Kota Semarang through study of learning tools and testimony. This study is a case study that is intended to describe the results of the impact analysis of JAS learning approach socialization to the target audience mentioned above. The results of the study indicate that at the beginning of the activity before the socialization, 62.5% of the participants had known JAS and stated positive things about JAS, such as activating teachers and learners, making it easier to understand biology materials, fun and educate critical thinking students. They have also been able to assess the constraints found in learners, especially on time management. With the socialization of the participants can develop lesson plan and other learning tools that are considered relevant to JAS. Nevertheless, in the application of learning it is difficult to achieve the characteristics and nature of JAS on the use of alternative / authentic assessment, exploration of the surrounding environment, and a fun learning / bioedutainment. The results of reflection and evaluation show that many participants have not been able to change the mind set to view the object of biological study in learning from education about to education for. For that, in the future it is necessary activities that lead to best practice of learning management, classroom action research and collaboration.
Sense of scale for prospective teacher students in solving physics problems
Authors: Nugroho S E , Hartono  , Subali B
Published: November 2019

Thinking about the boundary conditions for the formulation of abstract physical principles is needed in solving physical problems. A physics equation cannot simply be applied without regard to the context and requirements that the equation must fulfill. This study has explored the sense of scale in the context of solving physical problems in prospective teacher students, using qualitative descriptive analysis. Respondents consisted of 37 1st semester students, 35 5th semester students and 20 Physics teacher professional education (PPG) students at UNNES. The results of the study showed that sense of scale in solving physical problems in first and fifth semester students was low, while in professional education students were classified as moderate. There was no difference in the understanding of the scale between male and female students. Sense of scale about the measurement limit of a measurement instrument was better. Sense of scale in understanding the boundary conditions for the application of a physical formalism, identifying variables and constants according to context, and predicting a phenomenon based on the finding data was still relatively low.
Learning based virtual laboratory media to increase cognitive ability of students at SMPN 1 Manokwari
Authors: Widyaningsih S W , Mujasam M , Yusuf I , Ervina E
Published: November 2019

This study was a Classroom Action Research (CAR), which aims to improve the cognitive abilities of students of SMPN 1 Manokwari after application of virtual laboratory media-based learning in science subjects static electricity material. The CAR model used was the Kemmis and Mc Taggart models. The research was carried out in two cycles, each consisting of 4 stages, namely planning, implementing actions, observations, and reflections. The instruments used were cognitive ability tests given after learning in each cycle, learning achievement observation sheets, and student activity observation sheets filled by observers during learning. Data analysis techniques used were descriptive analysis techniques to describe students’ cognitive abilities. The results showed that there was an increase in cognitive abilities of students in cycle 1, namely 59.5 ± SD 11.2 and cycle 2, namely 73.5 ± SD 13.8. Therefore, virtual laboratory media-based learning can be applied to static electricity material at SMPN 1 Manokwari to develop students’ cognitive abilities.
Establishment of conservation character and metacognition capability’s students through plant anatomy lesson with JAS (neighborhood exploration) approach
Authors: Susilowati S M E , Alimah S , Saptono S
Published: November 2019

This study aims to test the effectiveness of JAS (Neighborhood Exploration) approach to shaping the character of conservation and metacognition ability in the students so that it can realize UNNES vision as a conservation university. Metacognition ability is very important because it determines the success of learning. Conservation characters include eight (8) values that are, inspiration, humanist, care, innovative, creative, sportive, honest and fair. The formation of conservation character in the students, besides done through the subject of Conservation Education, can also be implemented through the course of Plant Anatomy. This research is quantitative descriptive. The study was conducted in the even semester of 2017-2018. The population is even semester student of Biology Education program. Determination of sample taken by cluster random sampling obtained a sample of student semester four (4). The lessons were held for 4 meetings. At the end of each course, the students are asked to fill out a questionnaire about their attitude, and metacognition ability, to know the progress. Data were analysed descriptively. The results showed that of the three meetings, students’ metacognitive abilities increased. Developed attitudes are religious, honest, responsible, care, innovative and sportive. Conclusion, lecture Plant Anatomy with JAS approach effective to form conservation character and developability of student metacognition.
The influence of inquiry-based learning on Indonesian students’ attitude towards science
Authors: Sangkala N R , Doorman L M
Published: November 2019

Firstly, this study examined changes in Indonesian high school students’ attitude towards science after the implementation of inquiry-based learning (IBL). Using a quasi-experimental approach, TOSRA questionnaires were administered before and after intervention to access changes on students’ attitude. The results indicate IBL did not have a positive impact on students’ attitude towards science. Secondly, this study describes an attempt to discover factors limiting or supporting the implementation of IBL in Indonesian classrooms practice. Qualitative analysis of observation and teacher’s interview data was performed. Our findings reported that time, questioning techniques, task difficulties, insecurity of self-directed learning, and experience with group influenced IBL lessons’ implementation.
Pre-service teachers’ perspectives: pedagogical challenges of teaching mathematics on sea-teacher project
Authors: Sujadi I , Wulandari A N , Kurniawati I
Published: November 2019

In order to cope with rapid changes in 21stcentury, preparation of pre-service teachers is viewed as crucial to the quality of teacher workforce. This article presents the findings of a study of Indonesian-Thailand pre-service teachers that participated in SEA- Teacher Project. This study used qualitative method to describe pre-service teachers’ perspective on pedagogical challenges as they participated in observations, assist in teaching, teach and reflect. Drawing from participant field notes, surveys and semi-structured interviews, by open-questions this study seeks to investigate the problems. During those phases, this study gathered the pre-service teachers’ field notes that indicates some challenging pedagogical experiences influenced their perspective in teaching mathematics. The findings reveal that language becomes their major challenge in delivering material (80%) that affected their perception in explains a topic, concept or procedure in mathematics. Some of them overcame this problem by developing learning media. Pre-service teachers are given the opportunity to do practice teaching, but some of them (30%) are given only 2-3 meetings, that causes pre-service teachers couldn’t develop variation of teaching strategies. Pre-service teachers did not have enough time to learn school’s curriculum and resulted in students having difficulties in developing lessons plan.They then try to keep the curriculum in their home country (40%) or used the lesson plan as an example in school (60%). Some obstacles experienced by pre-service teacher (20%) as they have to taught large classes (up to 50 students).They had to work hard in order deal with different characters of students so the class remain conductive. In deal with misconception when students make mistakes in working on a problem 90% of them only give the right answer, without exploring the possibility of a misconceptions. In practice only 30% of them identify the cognitive demands of students who are taught during the observation activity and assist of teaching. Limitations on school infrastructure such as LCD, computers, and internet inhibit the pre-service teacher to develop ICT based learning (50%) but they overcome the limitation by developing students’ worksheet and contextual mathematics model.
Fallow preceding crops of spring wheat on black soils of Western Transbaikal territory
Authors: Batudaev A , Batueva M , Tsibikov B , Grebenshchikova T , Sobolev V , Altaeva O , Tsydypov B , Chelpanov G , Mironov S , Arbotneev Y
Published: November 2019

The article presents the materials of the study of various preceding crops on the yield of spring wheat in the conditions of black soils in steppe zone of the Republic of Buryatia. The research is a comparative study of next forecrops: summer fallow, green manured fallow and seeded fallow. Crops sown on a seeded fallow are oil radish crops and pea-oat mixture. It was established that the yield of spring wheat on summer fallow for three years in average was – 15.9 c/ha, on the sown fallow (oil radish) – 13.3 c/ha, on the sown fallow (peas – oat) – 14.5 c/ha, green-manured fallow (oil radish) - 15.2 c/ha, and green-manured fallow (peas - oat) – 15.3 c/ha. In steppe zone of the Republic of Buryatia the best forecrop of spring wheat of breeds Buryatskaya 79 on black soil is summer fallow, both in dry and humid years. The best yield of top soil green mass and plant residues provides a pea - oat mixture among the crops in field test that were for seeded fallow crops.
Study of ecological and economic state of agricultural lands of foothill areas in Altai region
Authors: Baykalova T V , Karpova L A
Published: November 2019

The article discusses the method of integrated assessment of environmental economic states agricultural lands of Krasnogorsky and Sovetsky districts of the Altai Region. Joint analysis of results of data processing of remote sensing, cadastral information and forms of statistical reporting allowed carrying out an area assessment of lands classified by different degrees of anthropogenic transformation. The characteristics of areas subject to anthropogenic influences were identified. They allowed us to allocate lands with special mode of use and adjust the ecological and economic state towards balanced and sustainable development.
Main trends and prospects for the development of beef cattle breeding in the Urals federal district
Authors: Sheveleva O M , Bakharev A A , Sukhanova S F
Published: November 2019

The article presents the main tendencies and prospects of development of the meat cattle breeding industry in the Ural Federal District. It is shown that the industry plays an important role in the production of quality beef. Mentioned is the quantity of cattle of beef production direction in the regions of the Ural Federal District, breed composition of cattle, availability of breeding reproducers. The applied technologies of beef cattle breeding, availability of breeding programs for work with large cattle of beef productivity direction, interrelation between breeding reproducers, peasant-farming farms and fattening grounds are shown.On the basis of the received results prospects of development of branch of beef cattle breeding, necessity of development of the small enterprises on cultivation of breeds of beef cattle are developed, and also necessity of development of fattening pads is established.Along with creation of fattening enterprises, it is necessary to pay attention to breeding work with breeds of beef cattle. Each subject of the Ural Federal District needs its own program of tribal work with breeds of meat production. In order to ensure uninterrupted supply of young animals with fattening pads, it is necessary to develop peasant farms and private subsidiary farms. The existing pedigree factories and tribal loudspeakers will provide small forms of management of tribal youngsters. This will provide jobs and employment for the population of remote villages and villages, and will allow the efficient use of agricultural land. Consumer cooperatives and livestock associations can be a connecting link. These structures will coordinate technological and breeding issues, development of modern technologies.Performance of tasks on increase in production of high-quality beef is connected with effective use of breed resources of large cattle of a meat direction of productivity, realisation of their selection-genetichex potential, creation of optimum conditions for the maintenance of animals.
Scenario planning as a mechanism to respond to changes in market environment indicators
Authors: Roiter L M , Vedenkina I V , Akopyan A G
Published: November 2019

The question raised in the article concerns scenario planning and its role in improving the efficiency of the economic entities of the poultry industry. The relevance of scenario planning, which is considered as a mechanism for responding to changes in the environment, is substantiated. The analysis of the main volume indicators of poultry production for 2018 both in the whole industry and in the context of regions is given and the presence of the Delta in these quantities is justified. One of the reasons for the difference in the existing indicators is the lack of scenario planning in individual economic entities. In this regard, a specific example shows the scenarios of planning the technology of meat production of broiler chickens when using the rearing of roosters up to 8 weeks of age and justified their economic feasibility.
Transformation of socio-economic development scenarios of Russian rural areas in the context of globalization
Authors: Zaporozhtseva L , Kleimenov D , Kuznetsova E , Orekhov A , Tkacheva Yu
Published: November 2019

The paper presents a formation and modification mechanism for scenarios of socio-economic development of rural areas of Russia. The long-term nature of strategic planning and the high risk of future uncertainty require flexible approaches, based on the allocation of several acceptable points of favorable, moderate and negative implementation of macroeconomic factors. The authors present a technique that determines the admissibility of the development trajectory of agricultural territory.
Analysis of natural agro potential for territorial organization of agriculture in the Samara region
Authors: Samokhvalova E V , Kutilkin V G , Zudilin S N
Published: November 2019

The research is conducted in order to improve territorial organization of agriculture in context of the implementation of use strategy of adaptive-landscape land basing on the assessment and analysis of spatiotemporal structure of natural agro-potential of the territory. The results of dynamic statistical modeling of the standard crops yield in administrative regions of the Samara region are used. A mesoscale comprehensive assessment zoning of the territory is made: seven mesozones are allocated according to compliance of standard yields with crop productivity factors (correlation coefficients with many indicators 0.7-0.9), and assessed districts in them with the most uniform conditions (coefficient of variation within 10%). Assessed zoning is made in administrative contours of Samara region, and it forms geographic basis for solving agro-production issues of organizing adaptive-landscape land use system and crop rotations design. The basis of field crop rotations in innovative technologies in central and southern districts of Samara region are grain-fallow and grain-fallow-cultivated field crop rotations with the optimum specific weight of "black" fallow and winter crops in them. In forest-steppe area grain-fallow-grass-cultivated and grain-cultivated rotations with full and green-manured fallows, perennial grasses and leguminous crops are promising. For their implementation, an analysis of agricultural crops appropriate placement in assessed mesozones is carried out. Crops location according to soil and climate territory specification makes it possible to solve problems of preventing soil and agro-landscapes degradation most effectively, taking into account environmental effect of crops and agro-technologies.
Technical and economic aspects of the development of modern rural areas
Authors: Porsev E G , Pokhomchikova E O , Skorobogatova Yu A , Tsarev R Yu , Avetisyan K R
Published: November 2019

The article presents the analysis of social potential and the structure of its rural districts. The quality of life of the population in different countries is studied in terms of expenditures and household consumption. The paper considers the level of the pace of the delivery of accommodation units and improvement of housing stock, which established the growth of indicators in rural districts, which in turn determines the growth of their social potential. The authors theoretically substantiate the need to attract investments and additional resources when addressing the issue of the development of socio-economic potential of a rural territory and its infrastructure. The substantiation of the need for active involvement in the development of the territory of companies and organizations, including the economic management system is determined.