This study aims to produce a product in the form of a science learning model for the acquisition of motion material concepts in valid objects, with the development path using a 4D model consisting of 4 stages of development namely define, design, develop, and disseminate. Learning tools developed are syllabus, Lesson Plain, SAS and tests of critical thinking skills and student learning outcomes. However, at this writing focused on the process of validation testing through validation tests on the development of devices made. The final result of this study is to produce valid learning development products. Keywords: Learning Devices, Validation

This study aims to produce learning media in high school grade XII science quantum phenomenon material. This research is development research that uses the research and development model of Borg and Gall with ten stages, but in this study only followed until the fifth step. Data from development research results in the form of a percentage of the validity of learning media from the validation sheet in the form of responses and suggestions obtained from the test results by material experts and media experts. This learning media is supported by a syllabus, learning implementation plans, and student worksheets as well as instruments for understanding students' concepts and critical thinking skills. The focus of this research is the validity test by material experts, media experts on the media developed. The results of the learning media validation from the test subjects were declared appropriate for use. Keywords: Learning Media; Quantum Phenomenon; Validation

This study aims to examine the effectiveness of quantum phenomenon learning media with a think pair share model in improving students understanding of concepts at the high school level. The development of quantum phenomenon learning media uses a research model developed by Borg and Gall. To determine the effectiveness of instructional media on understanding concepts, learning media were tested in a limited group in one of the high schools in Central Lombok Regency, West Nusa Tenggara province, Indonesia. Indicators of understanding concepts according to the theory developed by Anderson and Krathwol which consist of interpreting, giving examples, classifying, summarizing, drawing references, comparing and explaining. The development process goes through several stages, namely the stages of validation, data collection and literature. The results of the N-gain analysis for one indicator obtained an increase in students understanding of concepts in both classes, namely the control class with a low category (0.29) while the experimental class with a high category (0.75) for black body radiation subject matter section. The ttest results obtained tcount (23.08) are greater than the ttable (1.67). The results of the analysis show that the quantum learning media with the implementation of the think pair share (TPS) model is effective in improving students conceptual understanding.

This study aims to analyze the effect of the use of quantum phenomenon learning media implemented in Think Pair Share (TPS) learning models on improving student's critical thinking skills. The quasi-experimental research methods was used with nonequivalent control group design. The research subject were students from grade XII of one of private school in Central Lombok, West Nusa Tenggara. Two class of students were used for control and experimental group, and were selected based on purposive sampling techniques. Student critical thinking skills were analyzed using the separated variance t-test, obtained at 11.77 and at 1.67 at a significant level of 5%. The research concluded that the learning media quantum phenomenon has a positive effect on student critical thinking skills. The magnitude of the influence of phenomenon Quantum Learning Media by increasing the critical thinking skill of students analyzed using N-gain was obtained 0.68 in the middle category for the experimental class and 0.23 in the low category for the control class.