bluuebunny/crossref_metadata_2025 huggingface dataset:
Genetic evaluation of Central Javanese local duck based on the ovalbumin gene
Authors: Susanti R , Yuniastuti A , Iswari R S
Published: November 2019

Duck farm industry has a big contribution to the supply of animal protein sources in Indonesia. Reproductive efficiency in poultry is determined by the factor of the high ratio of hatching and fertilization, fertile duration, egg weight, and the number of eggs. Reproductive efficiency control genes play a major role in parent selection and provision of superior duck seeds. This study aims to evaluate the genetic quality of local ducks in Central Java based on the ovalbumin gene using PCR-RFLP technique. A total of 35 central Javanese local ducks were feathered on the inside of the right and left wings. Duck DNA is isolated from a feather sample. The ovalbumin gene was amplified with PCR techniques using specific primers TovaF1 and TovaR1. The product of the ovalbumin gene amplification (350 bp) is subsequently cut with restriction enzyme SspI (5′-AATATT-3′). DNA bands from restriction enzyme cutting then analyzed its genotype. The results showed that 6(17.14%) ducks had CC genotype, 16(45.71%) with TT genotype, and 13(37.14%) of CT genotype. Ducks with CC and TT genotypes showed higher hatchability compared to CT genotype. It was concluded that 22(62.86%) central Javanese local ducks were genetically superior in terms of hatchability (genotype CC and TT).
Growth of Elaeocarpus grandiflorus callus cultures in ms medium with various concentrations of growth regulators
Authors: Habibah NA , Widiatningrum T , Anggraito YU , Rahayu ES , Mukhtar K , Wijayanti N , Mustafa F
Published: November 2019

Rejasa contains bioactive compounds.Production of bioactive compounds can be done through callus cultures. This study will examine rejasa callus the growth of in various types and concentrations of growth regulators. The independent variables of this study are the types and concentrations of growth regulators (2,4-dichlorophenoxyacetic acid (2,4-D) and Picloram). Dependent variable is growth of callus. Callus growth was determined from the percentage of explants that produced callus, time of callus formation, and callus morphology. The explants used were young petioles grown on Murashige& Skoog solid medium with the addition of 2,4-D and Picloram at various concentrations. The results showed that the lowest percentage of callus formation observed in explants grown on medium with addition of 3.5 ppm 2,4-D (27%). The explants grown on medium with the addition of 3.5 ppm picloram showed the highest callus growth percentage (93%). Explant grown on MS medium supplemented with3.5 picloram showed the best average time of the callus induction, 29.9 days. Callus that is formed mostly brown, and in some treatments produce green callus. Based on the results of this study, the best medium for induction of rejasa callus is MS medium with the addition of 3.5 ppmpicloram.
The optimal sterilizing compound and culture medium in Elaeocarpus grandiflorus L. in vitro shoot induction
Authors: Rahayu E S , Widiatningrum T , Herlina L , Hermayani N , Amalia A R
Published: November 2019

Elaeocarpus grandiflorus L. is an identity plant of Salatiga City. Wherein, the plant is difficult to naturally propagation. This study would obtain propagation technique of E. grandiflorus by tissue culture. It was experimentally conducted, consists of two sub-experiments. The first aimed to find the optimal sterilization agent was conducted with a completely randomized design, namely sterilizing compound. There were two compounds studied, i.e., NaOCl and Ca(OCl)2. The second sub-experiment aimed to determine the optimal medium type and antioxidant compounds for inducing in vitro shoots. It was conducted with a completely randomized design with two factors, namely the medium type [i.e. Murashige & Skoog (MS) and Wood Plant Medium (WPM)], and antioxidant agents (i.e. activated charcoal and polyvinyl pyrrolidone/PVP). Data were analyzed by descriptive percentage, analysis of variance, and least significant difference test. The results showed that Ca(OCl)2 and NaOCl were effective to obtain the sterile and alive explants. The MS media added by PVP resulted in the most explants forming shoots, and WPM supplemented with PVP or active charcoal caused most explants regenerating callus. The results could be used as a basis for the development of in vitro shoot multiplication to reach an efficient propagation of E. grandiflorus.
Developing entrepreneurial competencies of Biology Study Program students through a business unit on plant tissue culture training
Authors: Rahayu E S , Rahayuningsih M , Noekent V , Al Muhammady A R
Published: November 2019

Student entrepreneurship must be developed through lecture sand direct training in entrepreneurial activities. Consequently, a business unit should be established. This activity would establish a new business unit of plant tissue culture (PTC) training and apply the entrepreneurial competencies of students of Biology Study Program. This activity could be useful in improving the quality of graduates. The methods followed some steps include selecting entrepreneurial students, establishing the business unit, training, mentoring, and evaluating. Students’ entrepreneurial skills were evaluated by observation and the data were descriptively analysed. The 12 biology students were elected as research subjects. The established business unit was named Sasana Kultura, which provides four types of consultation and technical training packages related to PTC. It was found that in 2017 the Sasana Kultura had started running by serving nine training packages. After being trained and mentored in Sasana Kultura, students generally understand and are skilled in some aspects of entrepreneurial competencies, include communication, interpersonal relationship, creativity, innovation, and business management. On the average, students’ entrepreneurial competencies reached the sufficient category. Based on the results, it can be concluded that the Sasana Kultura business unit could improve the entrepreneurial competencies students.
Antibacterial activity of Saccharum officinarum leaves extract against food-borne disease
Authors: Amalia A V , Pukan K K , Setyawati N , Widiatningrum T , Khasanah U
Published: November 2019

Food-borne diseases are mainly caused by germs contaminated food which deliver serious illnesses such as intoxication, infection or combination of both. The germs could be Escherichia coli and Staphylococcus aureus. Previous study revealed Saccharum officinarum baggase competence in depressing these bacteria growth. Leaf should afford a better role for having no carbohydrate deposition. For that reason, its petroleum ether extract was prepared in a dilution series of 100 %, 75 %, 50 % or 25 % and used for antibacteria evaluation by paper disc method. The result indicated diminished growth of both bacteria by 100 % and 75 % extract, though not as effective as the positive control containing ampicillin. Furthermore, the Gram-positive bacteria was deprived more than the negative one. GCMS chromatogram depicted some fatty acid appearances that might contribute to the antimicrobe activity. A future study of antibacterial effect of each isolated compound should be managed. However, this study has already verified that the petroleum ether extract of Saccharum officinarum leaves were found to be an antibacterial agent against Escherichia coli and Staphylococcus aureus.
The contribution of metacognitive in the inquiry-based learning to students’ thinking skill based on SOLO Taxonomy
Authors: Nunaki J H , Damopolii I , Nusantari E , Kandowangko N Y
Published: November 2019

Thinking skill based on SOLO (Structure of Observed Learning Outcomes) taxonomy and metacognitive are two variables on which many researches start to be conducted throughout the world and in Indonesia. That there is no investigation to study the contribution of metacognitive towards thinking skill base on SOLO taxonomy. This research aimed to examine the contribution of metacognitive toward students’ thinking skill based on SOLO taxonomy through inquiry-based learning implementation. This research was correlational research which connects an independent variable (Metacognitive) and a dependent variable (thinking skill). This research takes 104 students of XIMIA grade of SMA Negeri 01 Manokwari as its participants. The collected data were evaluated used rubric of metacognitive and thinking skill and analyzed by employing simple regression method. The results showed that P < 0.05, indicating that metacognitive contributes towards students’ thinking skill based on SOLO taxonomy for 51.5%. Based on findings related to student metacognitive, learning is more focused on teaching that can train students’ metacognitive by considering appropriate learning model, one of which is inquiry-based learning.
Isolation and characterization of biofilm-mediated vibriosis-causing bacteria from Macrobrachium rosenbergiii-aquaculture
Authors: Suhartono S , Muhayya S R , Nursanty R , Evarianti E , Ismail Y S
Published: November 2019

Vibriosis is one of the major problems in prawn aquaculture leading to a significant loss in yield. The objective of the study was to isolate and identify the etiological agent of vibriosis from the giant freshwater prawn (Macrobrachium rosenbergiii) aquaculture. The study was conducted by isolating the bacteria using selective media of thiosulfate-citrate-bile salts-sucrose (TCBS) agar followed by the morphological and biochemical characterizations, i.e., indole, methyl-red (MR), Voges-Proskauer (VP), citrate, urease, NaCl 0%, gelatinase and lysine decarboxylase tests. The isolated bacteria were further assayed for their standard growth-curve as well as the ability to form a biofilm on Congo-red agar (CRA). The results showed that the bacteria showed a yellow color in colony appearance and had negative Gram staining. On the biochemical assays, the isolates showed positive reactions on the indole, MR, VP, gelatine, and lysine decarboxylase; but had negative reactions on the citrate, urea, and NaCl 0% tests. The isolates were then identified as Vibrio alginolyticus and after further characterization, the isolates showed the ability to form a biofilm. This result signifies the urgency to overcome V-. alginolyticus as the causing agent of vibriosis that was able to form a biofilm on the giant river prawn aquaculture.
Antioxidant capacity and nutritional value of tempe yogurt
Authors: Bintari S H , Parman S
Published: November 2019

Tempe is a cheap and popular food that can be processed into yogurt as an alternative to cow’s milk. Tempe yogurt, which enriched with probiotics is an alternative beverage that able to increase body health. This study was to investigate the nutritional characteristics of tempe and nutrient content of yogurt tempe products. The sample of this study consist of eight test groups, cow milk yogurt (C1), juiced tempe yogurt (C2) and tempe yogurt, which was made using cow milk and varying amounts of tempe flour, 2.5% (T1); 5% (T2); 7.5% (T3); 10% (T4); 15% (T5) and 50% (T6) respectively. Each samples were prepared to proximate compound and antioxidant analysis and organoleptic test to determine the highest nutritional yogurt and most preferred taste. According to the test results, the highest carbohydrate, protein and lipid content were found in the T3 group, which reached respectively 12.21%; 11.72%; 24.46% while the antioxidant value reached 53.93%. Meanwhile, based on organoleptic test using hedonic scale for the highest value of taste preferences, showed that the most preferred taste was T2 group (4.39 point). The addition of tempe flour increases the nutritional value of yogurt in general. It caused by fermentation process of tempe, which releases nutritional compounds in soybeans. According to panelist, the T2 sample became a favorite one, because it has a softer milk texture, a balanced and more fragrant flavor. The conclusion is, the additional tempe flour in yogurt can increase nutritional value and preferred taste.
Breeding value and GH gene frequency to four weeks old quails’ body weight
Authors: Setiati N , Mustikaningtyas D , Dewi N K , Partaya
Published: November 2019

Breeding is main factor to evaluate individual superiority in livestock population. Early estimation is very useful in efficient selection process because it can make short interval generation in seed selection. The aim of this study is to measure breeding value and the influence of GH gene generation to quail in 4 weeks old. 100 female quails an 20 female quails in 4 weeks old are divided in high body weight and low body weight, and collecting the blood sample. The DNA is isolated, amplified and continued with PCR-RFLP. Breeding value are counted based on genotype from Mspl enzyme digestion. GH gene frequency are obtained by AA genotype = (Σ genotype AA / Σ in population) × 100%, AB = (Σ genotype AB / Σ in population) × 100%, BB = (Σ genotype BB / Σ in population) × 100%. The result of this study are obtained for low body weigt AA = 21,15, AB = 20,70 and BB = 20,25, AA = 23,02, AB = 22,38 and BB = 21,75. GH gene frequency is low body weight AA = 0,21, AB = 0,49 and BB = 0,30, while high body weight AA = 0,47, AB = 0,43 and BB = 0,10.
Estimating population size for Macrotermes gilvus Hagen (Blattodea: Termitidae) in Indonesia
Authors: Subekti N , Mar’ah R
Published: November 2019

Macrotermes gilvus Hagen (Blattodea: Termitidae) is a common mound-building termite species found in South East Asia regions, particularly in Indonesia, Malaysia, Singapore, Philippines and Thailand. However, scientific information on their demography and mound construction in Indonesian natural forests had not yet reported. This study aimed to investigate the demography and mound construction of M. gilvus Hagen in Yanlappa forest, which represents low-land natural forest in West Java, Indonesia. Termites mound distribution survey was conducted in strip transect, 50 m width interval, and supported by Global Positioning System. Termites population in each mound was determined after dismantled of the mounds, meanwhile mound construction were observed vertical as well as horizontal section. The mound of M. gilvus was distributed clusterly with density of 5 mound/Ha, density mainly located at elevation 3% - 5%, and under Leaf Area Index of 0-2. We concluded that M. gilvus is primary decomposers and contribute to litter fragmentation and the recycling of nutrient into the soil. Macrotermes gilvus plays an important role as a source of heterogeneity in this ecosystem, particularly in under stresses condition. The density and dynamic of M. gilvus, be taken into account in the global strategy of the forest resources management and conservation.
Exploring school culture experienced by science teacher in promoting scientific literacy in Central Java
Authors: Prasetyo A P B , Alimah S , Angraito Y U , Saptono S
Published: November 2019

This studyaimed todescribe school cultures experienced by science teachers from three districts in Central Java, such as Kudus, Magelang and Brebes, from which some junior high schools are being promoted to be school models of scientific literacy, to explore symbolic nature of science teaching quality, and to identify possible barriers for its promotion. School culture was defined as science teacher’s perceptions of shared beliefs, values, and moral of the extend to which teachers experienced three constructs like professional collaborations, collegial communications, and self-determinations during their service to schools. Self-assessment with 17 items, from the 2015-2016 Georgia Leadership Institute for School Improvement Inc., was used with some modifications. 50 science teachers from these Districts completed the questionnaire.Observation was implemented to describe physical school environments. Open interviews were conducted to school principals, science teachers and students. Data analysis was focussed on the extend to which school culture components were strong, weak, and the meaning of symbolic nature. Findings showed(i) science teachers experienced good collegial relationships and self-determinations, but weak professional collaborations,(ii) science teaching quality was not contextual and lack of connectedness to socio-scientific issues and students’ creative portfolios, and (iii) school was lack of shared vision and mission that could be the most barrier for school improvement.
Review challenges and constraints of project-based learning in chemical instrumentation to enhance competence and life skills
Authors: Prasetya A T , Haryani S , Cahyono E , Sudarmin
Published: November 2019

This article contains a review of research results (2008-2018) on project-based learning in science, especially in chemistry learning. Project-based learning is most appropriately applied to enhance critical thinking and creative skills in high learning. The result of a review of project-based learning in science and non-science learning have been discussed, project-based learning in chemistry and discourse apply project-based learning in chemical instrumentation. There are many challenges and obstacles to overcome so that project-based learning in instrumentation chemistry runs smoothly. At the end of the section, we described the benefits to be gained if project-based learning is applied in chemical instrumentation, which will increase competence through mastery of trace analysis methods and life skills through increased time management, responsibility, problem-solving, self-direction, collaboration, communication, creativity, and work ethic. The author also provides an overview of project completion on factors that can increase or decrease the success of project-based learning in instrumentation chemistry, and suggest further research directions.
The role of guidance and counseling teacher in solving students’learning difficulties in physics
Authors: Putra D J , Rahman Z
Published: November 2019

Physics is one of the subjects that are considered difficult, by most high school students taking the science stream in Indonesia. Tthere are many students who have difficulty in learning this subject. Moreover, physics is one of the important subject when students want to continue their education to first tier universities in Indonesia.To overcome this problem, this paper presents a theory that can be used by Guidance and Counseling teachers in overcoming the difficulties learning physics. The theory developed in this study can be applied by the counsellor in helping the learning difficulties of the students. This theory was developed with the literature study method which was analyzed using analytical descriptive techniques with an inductive approach.
Completion of non-routine word problem of fractional topics in junior high school student
Authors: Djong K D , Budayasa I , Suwarsono S
Published: November 2019

This study aims at describing the completion of non-routine word problem of fractional topic in junior high school student. The completion is related to the four-step solution of Polya. The subject of the study is a seven-grade student of junior high school. The subject was given non-routine word problem of fractional topic and continued with in-depth interview. Time triangulation was done to get valid data where equal test and interview were given at different time. The result showed that the student was able to solve the problem uniquely. At the time of re-examination, the student did not recheck her work but she substituted the final answer in the problem to match with the problem.
Applying lesson study in basic physics-6 to improve students’ achievement
Authors: Pujani N M , Suma K , Budhiarta M D , Juniartina P P
Published: November 2019

The study was aimed at describing: the quality of lesson study; the quality of student learning activities; and the improvement of students achievement before and after lesson study. The subject of study was 4 lecturers majoring in physics education and one class of students of Physics Education Department, Ganesha University of Education. The object of research was quality lesson study, learning activities, and students’ achievement at basic physics-6. The type of research was case study with qualitative description analysis. The quality of lesson study was measured by observation of plan, do, and see. The improvement of learning activity was measured by observation and interview, and students’ achievement quality in basic physics-6 was measure by test. The results showed: the quality of lesson study is good category; the student learning activity during the lesson study as active category; and the students’ achievement at basic physics-6 after lesson study improved with good category (before lesson study :

x
¯

1

=
41.2

bad category and after lesson study:

x
¯

2

=
73.8

good category)
Effect of RMS models (reading, mind mapping and sharing) based on e-learning to the learning outcomes of students in the teaching and learning subject
Authors: Widyaningsih S W , Mujasam  , Yusuf I
Published: November 2019

This study aims to determine the effectiveness of the RMS model (Reading, Mind Mapping and Sharing) based on e-learning in the subject of teaching and learning on student results. This study was a quasi-experimental type. The sampling technique was carried out through purposive sampling technique. The study population was the entire class of students of Faculty of Teacher Training and Education Universitas Papua second semester of the 2017-2018 academic year who contracted teaching and learning subjects. The sample in this study were 11 students of the Department of Physics Education and 19 students of the Department of Mathematics Education so that 30 students. To measure and find out the student learning outcomes the tests were conducted using multiple-choice questions totalling 20 questions. The results of the analysis show that there were significant differences in the average student learning outcomes before and after learning using the e-learning based RMS model as evidenced by the acquisition of sig values <0.05. The effectiveness of the RMS model based on e-learning can be seen from the effect size value of 1,976 which is in the high category. So it can be concluded that physics learning through an e-learning based RMS model was effectively applied to student learning outcomes in teaching and learning subjects.
Analysis of students’ mathematical resilience ability on linear program material through blended learning
Authors: Laelasari  , Darhim  , Prabawanto
Published: November 2019

Resilience states an individual’s ability to survive and can adapt to stressful situations. The growth of mathematical resilience in each requires minimal intelligence at an average level; this is because mathematical resilience is closely related to the ability to understand and convey something through the right language, reading ability, and non-verbal communication. This study aims to analyze differences in learning outcomes between students who are lecturing using blended learning models and conventional, analyzing students’ mathematical resilience abilities both as a whole and based on high and low ability levels in the Linear Program subject. The population of this research activity includes fourth-semester students, Mathematics Education Study Program, Unswagati Cirebon Teaching Education Faculty 2017-2018 academic year. The sample of the study is class A and B of 46 students. The study design used a quasi-experimental type with a non-equivalent control group. The research design chosen was a static group comparison experimental design involving two groups. The results showed that the ability of mathematical resilience by using blended learning, both overall and upper and lower groups had a significant increase.
The development of performance assessment on science learning use integrated model in elementary school
Authors: Amini R , Usmeldi
Published: November 2019

One of the curriculum demands for teachers is being able to develop the performance assessments. The reality shows that there is not available performance assessment use integrated model on science learning. The purpose of this research is developed a valid and practical performance assessment. This type of research is research and development of 4-D model that consist of definition, design, development, and disseminate stage. The subject of research is fifth grade students in Elementary School. Data were collected using observation sheets, validation sheets, questionnaire of student and teacher responses to the implementation of performance assessment. The research was produced the performance assessment use integrated model on static electricity material. The results of the data analysis showed that the performance assessment included valid category. The teacher and student response so that the performance assessment included practically.
Construct validity and composite reliability of students’ motivation instrument toward science in UNNES
Authors: Rudyatmi E , Ridlo S
Published: November 2019

This instrument manuscript was arranged with unstandardized stimulus and would come to a very subjective interpretation. This study aimed to test (1) construct validity and (2) factor reliability of students’ motivation instruments toward Sciences in Mathematics and Natural Sciences Faculty (FMIPA), UNNES. The response approach method was used in the instrument development. This approach would put response categories in points along the defined psychological continuum. The variable of this research is student’s motivation toward science. Research respondents were some students of FMIPA, UNNES who were studying in the even semester of academic year 2016/2017. Respondents was taken by proportional random sampling technique. This research was carried out in FMIPA UNNES. Loading factor on each variable in this instrument is significant or valid. That is observed from the p-value of the t-test <0.05. The minimum loading factor in each factor is 0.3, so qualitatively all the loading factors within the instrument are valid. Thus, the instrument of students’ motivation toward science is valid. As factorial, the coefficient of instrument reliability in science is very high. In composite, the coefficient of instrument reliability of students’ motivation toward sciences is also very high. Thus, the instrument of students’ motivation of FMIPA UNNES toward sciences is reliable.
Magnetism concepts analogy for Pesisir (coastal) students education
Authors: Handayani L , Yulianto A , Haryono S , Nugroho S E , Rohidi T R , Wiyanto
Published: November 2019

The unique of magnet behaviour has been explored by many parties and attracted them to describe its characteristics using analogy. The use of magnetism concepts analogy are varies including those in the field of education. As a part of a research aiming to investigate culture-based elementary school students’ analogical thinking skill, a study on magnetism concepts analogy has been carried out. By using interview, documentary study and literature review methods, several analogies of magnetism concepts were generated with the basis of various sources of students’ cultural background and learning materials. This paper discusses the analogies, particularly those which can be delivered in elementary school science class, and their implication for education ofPesisir(costal) students. Based on the review and discussion, it was concluded that the analogies of magnetism concepts facilitate people with high educational values which can be put into practice in science learning forPesisirarea students.
The effectiveness of nature of science (NOS) within guided inquiry learning approach for developing students’ scientific literacy in junior high school
Authors: Widodo E , Widowati A , Setyaningsih A
Published: November 2019

This study aims to investigate the effectiveness of the NOS within guided inquiry approach to develop the scientific literacy of junior high school students in science learning. This research type is a quasy experiment, with non-equivalent control group design. The subject of research is junior high school class 8. Sampling technique in this study is cluster random sampling that is random sampling conducted if the population is homogeneous and normally distributed. This research was conducted at SMPN 11 Yogyakarta. Research data were obtained by using research instrument that is pretest-posttest in the form of description and observation sheet of science literacy competency aspect. The question instrument that has been empirically tested has a reliability level of 0.644. Data analysis technique in this research is statistical parametric. The result of the research shows that there is a significant difference in scientific literacy between before and after student learning with NOS within guided inquiry approach in science learning by test-independent sample t-test with sig value. (2 tailed) of 0,000.
Effect of physics module based on activity and conceptual change text on students’ conception of static electricity
Authors: Suma K , Sadia I W , Pujani N M
Published: November 2019

The objective of this study is to investigate the effect of physics module based on activity and conceptual change text on students’ conception of static electricity. This study is a pre-experimental involved sixty 12-grade public senior high school students. The data on students’ conception were collected by Three Tier Static Electricity which has a reliability index of 0.61. The students’ conceptions were categorized into scientific knowledge, misconception, lack of knowledge, and error. The effectiveness of the module was measured from the significant difference in the mean level of students’ scientific knowledge, misconception, lack of knowledge, and error. The difference in mean was analyzed by t-test. The results showed that there is a significant difference between the mean level of students’ scientific knowledge, misconception, lack of knowledge, and error between pre-test and post-test. The physics module based on activity and conceptual change text is effective to improve the level of students’ scientific knowledge and reduce the level of students’ misconception, lack of knowledge, and error.
Development of computer simulations to overcome students misconceptions on light and optical instruments
Authors: Widiyatmoko A , Shimizu K
Published: November 2019

This study aims to develop computer simulations on light and optical instruments topic for junior high school students. The simulations are developed according to the students’ misconception having assessed with two-tier multiple choices test of light and optical instruments concept. The simulations are reviewed by six science teachers to gain comments and suggestion for further development using a set of questionnaires which consists of 10 items with 5-point Likert scale. The items of the instrument are created to assess simulations from aspects of content explanation and its deepness, display, language use, content, curriculum, and students’ misconception. The results of the study show that: (1) The computer simulations program is suited with the contents in the science curriculum, (2) The quality of computer simulations based on science teacher responses is in very good criteria. In conclusion, computer simulations are feasible for junior high school students to overcome misconceptions on light and optical instruments concept.
Enhancing students activity and problem solving skill through CTL-based local wisdom approach
Authors: Purwati P , Marasabessy F , Damopolii I
Published: November 2019

Contextual teaching and learning-based local wisdom approach is an approach that can be used in 21st century classes to develop student skill problems. Enhancing problem solving skills is the focus of the objectives in this study. Classroom action research follows the Kemmis & McTaggart action model. The research subjects were 28 students in class VIIA of SMP Negeri 1 Manokwari. Data collected using observation sheet and test. The analysis found that the average of student activity in the first cycle was 66% (adequate category), and increased in the second cycle with an average of 80% (good category). The increase is 14%. The average problem solving skills of students in the first cycle were 14% (very poor category), and increased in the second cycle by 62% (enough category). It can be concluded that CTL-based local wisdom approach can enhance student activity and problem solving skills of junior high school students. Future research can use other local wisdom based learning to develop problem solving skills for better.
An analysis on generational, transformational, global meta-level algebraic thinking ability in junior high school students
Authors: Agoestanto A , Sukestiyarno Y L , Isnarto  , Rochmad
Published: November 2019

The purpose of this study was to determine the effect of students’ generational abilities on students’ global meta-level abilities, to determine the effect of students’ transformational abilities on students’ global meta-level abilities, as well as the influence of students’ generational and transformational abilities on global meta-level abilities. This type of research is quantitative research with population eighth grade students of Semarang City Junior High School. A sample of 124 students obtained by stratified random sampling technique. Data is processed by correlation and regression tests, as well as the presentation of data in the form of diagrams. The results showed that students’ generational ability had a positive effect on global meta-level ability, students’ transformational abilities had a positive effect on global meta-level abilities, and together generational and transformational abilities had a positive effect on global meta-level abilities.
Learning tool development of guided inquiry based to reduce of student’s mistake in resolving question on cell division concept
Authors: Yusuf F M , Hasan A M
Published: November 2019

This study aims to produce learning tools using the guided inquiry model which is reasonable to reduce misconception in students’ class XII for solving problems ability on the cell division concept. This development research refers to Borg and Gall development which was modified. The collected data were analyzed qualitatively and quantitatively. Validity data using content validity ratio formula by Lickert Scale. Data of learning feasibility, students’ activities, and student responses conducted on observations. Data obtained from pre and posttest which are used to assess student learning outcomes, were analyzed using the normalized gain formula. The results of the study showed that learning tools (lesson plan and worksheet) are developed showed on minimum valid criteria. Practicality aspect of developed learning tools show good criteria was observed from the learning feasibility, students’ activities and responses. The effectiveness aspect showed high criteria based on N-gain was observed from students’ learning outcomes. This result shows that learning tools are developed qualify on validity, practicality, and effectiveness aspect and can use to measure learning quality to reduce students’ mistake in solving problems ability in the concept of cell division.
Exploring digital-age literacy among prospective science teachers in West Kalimantan, Indonesia
Authors: Afandi  , Sajidan  , Akhyar Muhammad , Suryani Nunuk , Afriani Rachmi
Published: November 2019

Digital-age literacy is one of the main skills of the 21st century to be considered in the future education program for prospective science teachers. This study aims to explore the digital-age literacy among prospective science teachers in West Kalimantan (Indonesia) based on the results of self-reflection and self-requirements and to identify the relationship between both variables in digital-age literacy. A sample of 180 prospective science teachers from three educational institutions for prospective science teacher programs in West Kalimantan (Indonesia) completed the survey using two forms of the questionnaires. Findings indicated that the self-requirements (M = 4.40; SD = 0.16) of prospective science teachers thinking on digital-age literacy are higher than the results of self-reflection (M = 2.65; SD = 0.29) on their abilities in digital-age literacy. This result also shows the relationship between digital-age literacy based on self-reflection and self-requirements to be at the medium level, where the correlation coefficient for both variables is 0.560 and value of the correlation is positive and significant. This is explain that if digital-age literacy based on self-requirements increases, then digital-age literacy based on self-reflection also increases.
The influence pf TSOI hybrid learning model to physic learning outcomes in SMA Islam Athirah Bukit Baruga Makassar
Authors: Mahmudah R
Published: November 2019

This study aims to investigate the effect of TSOI Hybrid Learning model with Blended Learning approach compared with Blended Learning approach to students physics learning result in First Grade of Science Major SMA Islam Athirah Bukit Baruga. To support the continuity of this study used Quipper School LMS as a software that can connect between teachers and students online. this study consisted of 60 students divided into 2 groups, consisting of the untreated control group and the experimental group treated. This research uses Quasi Experimental method with design "Statistic Group Comparison". Based on the result of the research, it is found that the ability of first grade of science major students in SMA Islam Athirah Bukit Baruga is normal distributed with χ2 count> χ2table = 4.40> 11.07 for control group and χ2 count> χ2 table = 5.20> 11.07 for experimental group and homogeneous with fcount of 0.680. The experimental group taught using the TSOI Hybrid Learning model with the Blended Learning approach found a statistically significant difference (α ≤ 0.05).
Meta analysis:the effect of applying project-based learning models to students’ science process skills
Authors: Ramdhayani H G , Purwoko A A , Muntari M
Published: November 2019

This study aims to determine the effect of the application of project-based learning models on student’s science process skills in science learning (chemistry, physics, and biologi). The research method is a meta-analysis with calculations according to Hunter and Schmidt. Sampel is 12 national journal articles online. The results of the analysis show that there is an effect of the application of project-based learning models on student’s science process skills. Effect size value of 0.444 including the medium category.
How to make slow learners learn science
Authors: Nugroho I A , Prasetyo Z K
Published: November 2019

One of the goals of ESD is the implementation of inclusive education. That goal is prepared through the fulfillment of teacher competencies through teacher education in the universities. However, not all in-service teachers understand the nature of inclusive education. The results of the preliminary study show that preservice teachers need practical understanding with the existence of learning device models for inclusive classes. This study aim is to produce teaching materials in ESD context which consists of lesson plan and media for slow learners. This research was designed using Research and Development (R & D) adapted from Plomp which consists of five stages, namely (1) Initial investigation, (2) Design (3) Realization/construction, (4) Test, evaluation and revision, and (5) Implementation. This research was limited to fourth stage. Validation used the consideration of science education expert and special education expert. The instruments used in this research were assessment form and observation form. The lesson plan and media tested in one-group pretest-posttest experimental design. The result of this research is effective lesson plan and media of science for slow learner student.
Develop a student’s critical thinking skills
Authors: Sari I K , Kenedi A K , Andika R , Ningsih Y , Ariani Y
Published: November 2019

The purpose of this research is to reveal: (1) the effect of Problem-based Learning (PBL) on the critical thinking skills; (2) the effect of Project-based Learning (PjBL) on the critical thinking skills; and (3) differences of critical thinking skills between the group taught using PBL and the group taught using PjBL. This study was a quasi-experiment the non-equivalent comparison group design. The population was 54 students. The data analysis used t-test and Univariate Analysis of Variance at the significant level of 5%. The results are as follows: (1) PBL Improved positively and significantly on the critical thinking skills; (2) PjBL improved positively and significantly on the critical thinking skills; and (3) there is a significant difference on the critical thinking skills between the group taught using PBL and that taught using PjBL.
Problem based learning with Indonesian realistic mathematics education approach assisted e-schoology to improve student mathematization
Authors: Wardono  , Mariani S
Published: November 2019

This study aims to determine (1) the quality of problem based learning with Indonesian realistic mathematics education approach (PMRI) assisted e-schoology (PPS), (2) the initial conditions of students’ mathematization, (3) improvement of the mathematization of junior high school students at PPS. This study uses experiments. The population of this study was class VIII students of SMPN 4 Semarang. Samples were taken randomly and obtained three classes, one first class using PPS learning, second class using PMRI and third class using expository. Research result; (1) The quality of PPS learning devices and PMRI learning devices meets the very good category, (2) the initial mathematization ability of students is still below level 1. (3) Increasing the mathematization of junior high school students in PPS learning is higher than the improvement of students’ mathematization with PMRI learning and higher than increasing students’ mathematization in expository learning.
Mentoring model based on the levelling of probabilistic thinking to develop problem solving ability
Authors: Taram A , Sukestiyarno Y L , Rochmad  , Junaedi I
Published: November 2019

This study aims to describe the probabilistic thinking level of mathematics education students in the topics of sample space, event, and the probability of the event. Many studies have produced different levels of probabilistic thinking, allowing for another new leveling structure of the probabilistic thinking.This study used a qualitative descriptive method involving 112 mathematics education students of Universitas Ahmad Dahlan who took elementary statistics subject in the second semester of 2017/2018 academic year as its subjects. The data analysis was conducted by describing the answers based on the probabilistic thinking leveling indicator.The results of the first stage of this study found a new leveling structure in probabilistic thinking, namely six levels of probabilistic thinking: (1) Level 0 (pre-subjective), with 23 students (20.54%); (2) Level 1 (subjective), with 18 students (16.07%); (3) Level 2 (transition), with 16 students (14.29%); (4) Level 3 (informal quantitative), with 17 students (15.18%); (5) Level 4 (formal quantitative), with 14 students (12.50%); and (6) Level 5 (numerical), with 24 students (21.43%). The second phase of the research will focus on the appropriate mentoring model based on the findings of this first stage research, improve the students’ ability to solve problems, and raise their level of probabilistic thinking to the next levels.
The comparative of mathematics learning using guided discovery method and expository method to mathematics learning outcomes
Authors: Hidayati N A , Fahmi S , Farida K
Published: November 2019

This study aims to determine the difference in mathematics learning achievement between students in the learning using guided discovery method with students in the learning using expository method in students of class XI in Madrasah Mu’allimaat Muhammadiyah Yogyakarta Year 2017/2018. The population in this research is all students of class XI in Madrasah Mu’allimaat Muhammadiyah Yogyakarta academic year 2017/2018. The sample in this research will be taken by cluster random sampling technique and obtained class XI D and XI E as sample. Technique Data analysis using Test prerequisite analysis which includes Test normality and Test homogeneity then done by t-test. The result of the research shows that there are differences of students’ mathematics learning outcomes between students using guided discovery method with students using expository method in students of class XI Madrasah Muàllimaat Muhammadiyah Yogyakarta academic year 2017/2018. This is shown by t-test of two parties obtained the result t_count = 39,7926> t_table = 1.9949 at a significant level of 0.05 and degrees of freedom (dk) = 69. Next do a one-party t test with t_count = 39, 7926> t_table = 1,6672 at significant level of 0.05 and degrees of freedom (dk) = 69 which means Guided discovery method is more effective than expository method toward mathematics learning achievement of grade XI Madrasah Mu’allimaat Muhammadiyah Yogyakarta Academic Year 2017/2018.
The misconception analysis of natural science students on heat and temperature material using four tier test
Authors: Irawati R K , Sofianto E W N
Published: November 2019

This study is to analyze the misconceptions of natural science students of State Islamic Senior High School (MAN) Banjarmasin in the heat and temperature materials. The study was conducted in all State Islamic Senior High Schools Banjarmasin, namely State Islamic Senior High School 1, 2, and 3 Banjarmasin. The instrument used in this study was a misconception test with four tier tests so that the data obtained were in the form of students’ misconception data. The analysis of the misconception uses the four tier tests. The results showed that the natural science students of State Islamic Senior High School 1 Banjarmasin experienced misconceptions on the concept of expansion, changes in form, heat capacity, and heat transfer; the natural science students of State Islamic Senior High School 2 Banjarmasin experienced misconceptions on the concept of expansion, change of form, and Black Principle; the natural science students of State Islamic Senior High School 3 Banjarmasin experienced misconceptions on the concept of expansion, changes in form, heat capacity, Black Principle, and heat transfer.
The development of interactive multimedia-based instructional media for elementary school in learning social sciences
Authors: Miaz Y , Helsa Y , Zuardi  , Yunisrul  , Febrianto R , Erwin R
Published: November 2019

This research is motivated by inappropriate instructional media used in learning social science for elementary school students. For instance, the images used as instructional media are not clearly visible and do not match in the size. This study aims to develop valid, practical, and effective interactive multimedia-based instructional media in social studies learning. This type of research is Research and Development (R & D) research using the four-D (4D) development model which consists of four stages; define, design, development, and disseminate. The media developed is in the form of interactive multimedia-based instructional media for social studies learning in elementary school. The results showed that: (1) the validity test by three validators in the three aspects which are media, material, and language are in the very good category, (2) the practicality test of the instructional media by the teacher and students are in very good category, and (3) the effectiveness test in the form of learning outcomes for the cognitive domain is in an average score which can be stated as the very good category, while the affective and psychomotor aspects are in the good category with a percentage 85% of 20 students. Thus, it can be concluded that the interactive multimedia-based instructional media is very valid, practical, and effective to be used in learning social studies for elementary school students.