This study aims to investigate the comparison of self-regulated and learning achievements of students who are taught by using e-learning based schoology and power point media on human reproduction system in grade XI IPA SMA Negeri 1 Silimakuta. The research method which is applied is quasi experiment with the participans of all students of grade XI IPA are 160 students. The sample of research is determined by cluster random sampling technique mainly grade XI-1 is taught by using e-learning based schoology media and grade XI-2 is taught by using power point media. The research design which is used is pretest-posttest control group design.The results of the research shows that the students' self-regulated learning which is taught by using e-learning based schoology media is 88,33±0,482 with the gain of 14,93±1,005 while in the class power point is 83,33±0,682 with the gain of 9,57±0,827. Students' self-regulated learning which is taught by using e-learning based schoology media is significantly higher is 21,88% compared with by using power point media (tcount4,124; P=0.000). Students' learning achievements which is taught by using e-learning based schoology media is 85.44 ± 1,018 with the gain of 61,44±2,138 while in the class power point is 72,53±1,448 with the gain of 50,07±2,911. Students' learning achievements which is taught by using e-learning based schoology media is significantly higher is 10,19% compared with by using power point media (tcount3,145; P=0.003).

This study was conducted: -To prove whether remote sensing can be accepted in science and technology, -see the changes in the environment and critical land. To get the information of an object, the principle of reflection in physics was used . Sunlight comes to the earth surface and an object or wave is brought to the object, then the object reflects back the wave spectrum corresponding to the object characteristics into space and captured by the sensor as a data source that will be processed using a computer. Thus, the reflected object characteristics will be known. The results of the study: -prove that remote sensing can be used to observe the desired earth surface, -and there is environmental changes by looking at the greenness index (NDVI) and surface temperature (LST) and, -there is land curvature. This study also recommends that: Remote sensing can be used to monitor the earth surface widely

Computer based test (CBT) becomes more pervasive in the last few decades, there is growing need for educators to consider modes of assessment because there are many advantages. CBT is an effective solution for mass education evaluation, so that CBT is very necessary applied especially in evaluation and assessment for students. The purpose of this research is to design a system for student academic examination based on computer based test (CBT). The system is designed to facilitate the examnination processes and manage challenges surrounding the conduct of examination, auto-submission, auto-marking and examinaton result report generation. The kind of this research is part of research and development (R&D) research. Model design is adopted from Thiagaraja, which have four-D model: (1) define, (2) design, (3) development, (4) disseminate. This research was executed until the limited trial of design model because the lack of the time of this study. Define was analysed student’s need, the goal, and the CBT’s concept. Design was choosed the CBT’s software, software that used in this study was learning management system (LMS) Moodle. The goal of this study is create CBT system for student examination and showed the effectivity of the system.

The objective of this study is to expose : 1) validity of learning-tools oriented learning of problem-based to develop; 2) be practical learning-tools oriented learning problem base to develop; 3) the effectiveness of learning-tools of learning oriented problem based to develop; 4) improvement capability problem solving in those students adopting a learning-tools oriented learning problem based to develop. In the study was taken that (1) the learning- tools in developed was valid to the total average of validity RPP = 4.60, students book = 4.45, teachers’ book = 4.47. LKS = 4.52, test ability to solve problem was in valid enough and valid in reliability of 0.910, and questionnaire in self-study was in valid category and valid sufficient with reliability of 0.97; (2 )the learning-tools in development meets a practical criterion viewed from a) teachers’ assessment in category easily to execute; b) students’ valuation was in highly easy to conduct; and c) how to execute the learning is in the best category; 3) the learning-tools meets the an effective criterion; 4) average rise ability in solving problem on student from the test 1 through test II was 0.29 point with improvementfor full-program to study classically was 15.12%.

This research purposed to find outthe increasement of students’ achievement which taught by using guided inquiry-based model higher than conventional model, the increasement of students’ science process skill which taught by using guided inquiry-based model higher than conventional model, and the significant correlation between students’ achievement with science process skill by implementing guided inquiry-based model. The population of this research is all students of natural science elevent grade SMA Negeri 1 Binjai in the year academic of 2017/2018. Analysis technique was done by using gain test, normality test, homogeneity test, right-sided t-test, and correlation test. As result: 1) the increasement of students’ achievement which taught by using inquiry-based model is higher than the conventional model with t-table (1.666) > t-statistics (3.700) for cognitive domain, t-statistics (4.208) for affective domain, and t-statistics (4.798) for psychomotor domain, 2) the increasement of students’ science process skill which taught by using guided inquiry-based model is higher than conventional model with t-statistics (4.376) > t-table (1.6663), 3) there is significant correlation between students’ achievement with science process skill by implementing guided inquiry-based model with very high criterion respectively 0.900, 0.860, and 0.819 for cognitive, affective and psychomotor domain.

Violent acts among teenagers in senior high schools continue to increase along with the lack of emphasis on reducing the intensity of these acts by the schools’ counseling service. This research aims to describe the violence acts prevention through counseling service by using a problem-solving approach to improve the students’ self-control. This study is a quantitative research with an experimental design. The population consisted of Senior High School (SHS) students in Padang, Indonesia, and the sampling technique was cluster random sampling. Data collection was performed through the use of Firman and Yennikarneli's questionnaire (2017) which validity and reliability have been approved. Data analysis was performed through a descriptive method and the Wilcoxon Signed Rank Test. Based on the results of the analysis, it was found that violent acts prevention through counseling service by using a problem-solving approach is effective in improving high school students' self-control.

The student’s prediction skills in chemistry experiments areimportant skills for pre-service chemistry students to stimulate students reflective thinking at each stage of chemistry experiments, qualitatively and quantitatively. A Virtual Chemistry Laboratory was designed to provide opportunities for students to practicing kinds of chemistry experiments everywhere, anytime, and repeatedly, before exercising the real experiment. This research was conducted by mixed method with triangulation data, in which the Virtual Chemistry Laboratory content was constructed using the Model of Educational Reconstruction and developed to enhanced students ability to predict the experiment results and analysed the cause of error, calculating the accuracy and precision with carefully in using chemicals. This research bring out a new and simple experiment design inside Virtual Chemistry Laboratory, and the implementation showed student’s transformation to executing important decision, extremely beware with accuracy, but still had low concern in precision. It enhancing students level of reflective thinking skills related to their prediction skills 1 until 2 stage This study recommends for different subject matter to provide more opportunities for students to expand another chemistry experiments.

Mathematics and culture are interrelated to each other, which are found in everyday life. Various mathematical concepts can be explored and found in culture. Mathematical concepts can be seen in cultural products in the form of artifacts such as the Masjid Agung Pondok Tinggi. The Masjid Agung Pondok Tinggi can be a source of learning mathematics, because there are concrete mathematical concepts that are immediately seen by students. The purpose of this research is to explore what concepts exist in the building of Masjid Agung Pondok Tinggi which can be used as a source of learning mathematics and as an effort to develop Etnomathematics in mathematics learning. The Data is collected through exploration, observation, documentation, and literature studies. The results of the study found that in the construction of the Masjid Agung Pondok Tinggi had used mathematical concepts, even though the people in the past did not know how the concept of construction of buildings such as angles, symmetries, rectangles. Construction of the Masjid Agung Pondok Tinggi implements one of the mathematical sciences, namely geometry, one of the concept of a rectangle which includes a square, rectangle, and trapezium. Learning concrete ethnographic objects can facilitate students to understand abstract mathematics

This study aimed to construct a multiple-choice conceptual knowledge test for high school in fluid subject matter according to standard qualification of a good test based on validity, reliability, difficulty index, discrimination index, and effectiveness distractor..The method of this study is Research and Development by using Borg and Gall step. The population of this study was all the students grade XII Senior High School in Medan, North Sumatera academic 2018/2019. The sample selection by stratified random sampling based on the public and private school, implementation of curriculum 2013, and accreditation. Data analysis technique used is descriptive qualitative and quantitative techniques. Qualitative data analysis includes material, construction and language while quantitative data analysis determined validity, reliability, difficulty index, discrimination index, and effectiveness of distractor. Step of this study consists of preliminary studies, research planning, design development, experts judgment, revision of expert judgment, a small group trials, revisions of small group trials, large group trials, revisions of large group trials. Furthermore, it obtained an instrument test of conceptual knowledge on Fluid in Senior High School that meets the standard test instruments.

Kawa beverage is a traditional Kerinci drinkingwho made from dried coffee leaves. Kerinci has the potential of 1,789 hectares of Arabica coffee garden area. The purposed of this study was to reconstruct the original knowledge of the community in the process of processing the kawa beverage into scientific knowledge which was used as a media for biology applied learning. The Location of this research was in Ujung Pasir Village,Lake of Kerinci, Regency of Kerinci, Jambi Province. The method of this research was used phenomenology method with descriptive qualitative approach. The Data were collected by observation, interviews and documentation. The data obtained wasanalyzed by describing, inventorying, classifying and then constructing original knowledge and scientific knowledge into the concept of biology applied learning. The results of this research showed that the process of processing the beverage was approved out in the traditional way of hereditary knowledge who consisted of drying, burning, packaging, mixing and services. And all of the kawa beverage manufacturers do not use other excitement in mixing which have tastelessness and bitter, theservices is done by brewing. The process that has been interpreted into the concept of science can be implemented in the biology applied learning.