This study aims to determine the effect of collaborative inquiry learning model in improving the skills of 4C (Collaboration, Communication, Critical Thinking, and Creativity) students compared with conventional learning. The study population was all students of tenth grade seven high school in Medan for second semester of the academic year 2017/2018. The sample in this study was taken by cluster random class, the experimental class using inquiry and collaborative learning model class control using conventional learning. The variables in the study consisted of 4C skills as dependent variables and collaborative inquiry models as independent variables. Data were analyzed using t-test. The results showed that the collaborative inquiry learning model is better than the conventional study to improve students' skills for learning physics 4C on the material impulse, momentum and collisions in high school. Student achievement due to the learning process of collaborative inquiry can train students to learn reorganize knowledge through reflection and analysis together, reconstructed through collaborative action, and build knowledge together through their experience to learn and use a variety of resources and implement all the strategies as well as their skills in actions during the course of the investigation.

This study aims to generate media Virtual Lab on the basis of electrical materials that meet the criteria are valid instructional media, practical, and effective . The population in this study was the Airport Electrical Engineering class class XVII semester I, while the research subjects of the validity trial were Unimed physics lecturers and the subjects of the implementation of Virtual Lab learning media were the Airport Electrical Engineering class XVII, totaling 24 people and the Airport Electrical Engineering level III and XIV. 46 people . The procedure for developing Media Virtual Lab using the Research and Development Method initiated by Borg and Gall which consisted of research and information collecting, planning, developing preliminary forms of product, preliminary field testing, main product revision, main field testing, operational product revision, operational field testing, final product revision, and dissemination and implementation. The instruments used in this research are validity questionnaires to see the validity of the Virtual Lab media , lecturer and student response questionnaires to see the practicality of Virtual Lab media on basic electrical materials and pretest and posttest instruments to see the effectiveness of Virtual Lab Media . From the research results, it can be concluded that the Virtual Lab Media Development with an average value of 78.76% for media validation results while 78.86% for material expert validation results, both of which are categorized as quite valid and can be used but minor revisions. Practical response of Virtual Lab Media by lecturers with an average value of 86.1% which is categorized as very practical, while by students 82.94% for small groups and 77.33% for large groups which are quite practical. The effectiveness of Media Virtual Lab shows N-Gain with a value of 0.61 which is considered effective on basic electrical materials .

This study aims to analyze how science process skills use scientific inquiry, to analyze how science process skills with high scientific attitude and low scientific attitude, to analyze the interaction between scientific inquiry and scientific attitude. This type of research is a quasi experiment with a pretest-posttest control group design. Data analysis was performed using descriptive analysis which aims to be able to explain and predict the symptoms that apply on the basis of data obtained in the field. Based on the results of the study it was found that the science process skills using scientific inquiry on the temperature and heat material experienced a significant increase, the skills that had a high scientific attitude were better than the science process skills which had a low scientific attitude, and there was an interaction between scientific inquiry and scientific attitude.

The purpose of writing this article is to find out how to build human character to face the industrial era 4.0, so that they have an understanding of digital literal dimensions and can increase the graduates’ competence who have 4Cs skills (critical thinking, creativity, collaboration, and communication) by using collaborative inquiry, especially on temperature and heat material. This type of research is a quasi experiment with a pretest-posttest control group design. The result of this research is that students 4Css skills using collaborative inquiry learning model are better than students4Cs skills using conventional learning at SMA Negeri 14 Medan. Then, it is hoped that they will be able to produce humans who are in accordance with the demands of the industrial era 4.0. With 4Cs skills, they can gain and increase cooperation in a group to solve certain problems, increase their tolerance for peer opinions, try to think critically and creatively to solve problems related to something.

The purpose of this research is to develop interactive multimedia web-based material of elasticity and Hooke’s law in senior high school. This research is a type of research development (Research & Development). The concept used is the Analysis development, Design, Development, Implement and Evaluation (ADDIE). This research is limited to the development stage, namely expert validation. The results of the media expert validation show that the developed web-based interactive multimedia is valid in the display aspect, very valid in the programming aspect, very valid in the usefulness aspect and valid in the language aspect. The results of the material expert validation show that the developed web-based interactive multimedia is valid in the display aspect, valid in the quality aspect of teaching material, valid in the aspect of content, very valid in the aspect of usefulness and valid in the aspect of language. Web-based interactive multimedia is suitable for senior high school physics learning.