Research has been carried out on the development of physics props for measuring light wavelengths based on Arduino Uno with the diffraction lattice method (case study of visible light wavelengths), with the aim of determining the level of validity and practicality of arduino uno-based light wavelength measuring physics props with the diffraction lattice method. This research includes development research, with reference to the ADDIE development model with stages, namely analysis, design, development, implementation, and evaluation. The testing of props is carried out with validity tests by media experts and material experts to determine the level of validity of the props that have been developed. In addition, product trials were also carried out to determine the level of practicality of teaching aids, through student response tests and assessments from physics teachers. Product trials were carried out at sma class XI MIPA with a total sample of 163 people. Based on the results of the validity test of media experts and material experts, it can be known that the level of validity of props is on very valid criteria with a percentage of 85.71% from media experts and 95.69% from material experts. Then, based on the results of practicality tests carried out through student response tests, it can be known that the level of practicality of teaching aids is on practical criteria, with a percentage of 78.74%. Meanwhile, based on the results of practicality tests conducted through physics teacher assessments, it can be known that the level of practicality of teaching aids is on very practical criteria with a percentage gain of 84.28%. Based on the results of this study, it can be concluded that the physics props of arduino uno-based light wavelength measuring with the diffraction lattice method meet the criteria very valid and practical for use in the physics learning process. Keywords: Physics Props, Arduino Uno, Light Wave, Diffraction grid.

This research aims to examine the use of reading guide-based physics practicum manuals to improve students' creative thinking skills. The type of research method used in this research is a literature study. Data collection is obtained from various journals, books, and proceedings that are relevant to the focus of the research and based on creative thinking indicators, namely fluency, flexibility, originality, and elaboration in a reading guide-based practical model. The data were analyzed by the correlation between the indicators of creative thinking ability and the practicum guide model used. The results of this research are a collection of references that are relevant to the focus of the research. Based on the results of the literature study, it was found that there was a correlation or continuity between the criteria for reading guide learning strategies and indicators of creative thinking skills, namely: 1) Fluency, 2) flexibility, 3) originality, and 4) elaboration. Therefore, it is concluded that the use of variations of the reading guide-based physics practicum model will be able to improve students' creative thinking skills if it is used in learning that carries out physics practicum.

Abstrak Keterampilan berpikir kreatif ilmiah adalah keterampilan atau kemampuan untuk menghasilkan ide-ide atau gagasan yang ditekankan pada kegiatan ilmiah. Penelitian dilatarbelakangi oleh hasil penelitian Qiftiyatul Lailah dan Suliyanah (2018), hasil penelitianya menujukan bahwa kemampuan berpikir kratif ilmiah peserta didik masih tergolong rendah. Sementara itu, Fisika merupakan bagian dari ilmu pengetahuan dan teknologi. Berdasarkan hal tersebut seseorang yang belajar fisika perlulah dibekali dengan kreativitas dan keterampilan agar mampu menghadapi tantangan tersebut. Hal itulah yang mendasari penelitian ini dilaksanakan sebagai upaya peningkatkan kemampuan berpikir kreatif ilmiah dengan menggunakan model pembelajaran POE2WE berbantuan dengan virtual laboratory pada pembelajaran fisika. Kata kunci : Peningkatan, Berpikir Kreatif Ilmiah, Model POE2WE, Virtual laboratory, Pembelajaran Fisika.