Tujuan dari kegitan ini adalah untuk pengenalan dan pengembangan rancangan pembelajaran STEM (Science, Technology, Engineering, and Mathematics) dalam meningkatkan Kompetensi Guru Kimia SMA dan SMK di Kota Madiun. Mitra dalam kegitan ini adalah guru kimia yang tergabung dalam MGMP kimia SMA dan SMK di Kota Madiun. Kegiatan diikuti oleh 21 orang guru. Metode dalam kegitan ini adalah trasfer of knowledge melalui kegitan workshop. Hasil kegiatan pengabdian kepada masyarakat ini adalah: (1) mampu mencari solusi atas permasalahan yang dihadapi guru kimia di Kota Madiun, ditunjukkan oleh peningkatan capaian pemahaman melalui diklat sebesar 26,36% (dilihat dari tes awal dan tes akhir), dan (2) Pemahaman guru terhadap STEM sebesar 83,81%. Harapan peserta dan mitra kolaborasi (MGMP Kimia Kota Madiun), kegiatan semacam ini dapat secara berkesinambungan, terutama menyusun dan mengembangkan Desain Pembelajaran Berbasis STEM pada materi kimia di Sekolah Menengah dan implementasi pembelajarannya.Introduction to STEM (Science, Technology, Engineering, and Mathematics) and the Development of Learning Designs to Pioneering Chemistry Learning with the Credit System in Madiun CityAbstractThe purpose of this activity is to introduce and develop STEM (Science, Technology, Engineering, and Mathematics) learning designs in improving the Competence of High School and Vocational School Chemistry Teachers in Madiun City. Partners in this activity are chemistry teachers who are members of the High School and Vocational High School Chemistry MGMP in Madiun City. The activity was attended by 21 teachers. The method in this activity is the transfer of knowledge through workshop activities. The results of this community service activity are: (1) being able to find solutions to problems faced by chemistry teachers in Madiun City, indicated by an increase in understanding achievement through training by 26.36% (seen from the initial test and final test), and (2) Teachers' understanding of STEM was 83.81%. The hope of the participants and collaboration partners (MGMP Kimia Kota Madiun), this kind of activity can be sustainable, especially compiling and developing STEM-Based Learning Designs on chemistry materials in secondary schools and the implementation of learning.

The voltaic cell teaching materials used in high school are still in the form of textbooks that do not present multiple representations of chemistry, namely the macroscopic, submicroscopic, and symbolic levels. The three levels of chemical representation can be visualized using flipbook teaching materials so that students are expected to understand the voltaic cell material. Teaching materials are used to support the learning process. Current learning still uses conventional learning models that only focus on teachers. Constructivist-based active learning is needed because it involves students so that learning is more meaningful. One of the constructivist learning models is the guided inquiry learning model which includes observing, asking questions, compiling hypotheses, gathering information, testing hypotheses, and concluding. The purpose.of this development.is to.produce a proper guided inquiry-based flipbook teaching material. The flipbook teaching.materials were developed.using the Four-D model (define, .design, .develop,and.disseminate) but the disseminated stage was not carried out. Media and material validation was carried out by five chemistry lecturers. The legibility test was carried out by 50 high school alumni with a specialization in Science. The assessment uses a Likert scale accompanied by comments, suggestions from the validator, and audience. The data obtained from the analysis questionnaire to determine the feasibility level of the product using the percentage technique. The validation of the flipbook teaching materials development product in terms of material obtained an average score of 85.4%, validation in terms of media.obtained.an.average percentage of 85.5%, while the readability test results obtained.an.average.percentage of 87%. Based on the results.of material validation, media, and legibility tests, it can be concluded that the flipbook teaching materials guided inquiry-based voltaic cells are very suitable as a learning resource.

ABSTRACT

Development of student understanding of nature of science, conceptual understanding, and scientific literacy on learning must be supported by proper learning process. An offline and online environment on mobile learning oriented with Nature of Science oriented learning can be considered to commit. Mobile-Nature of Science (Mobile-NOS) is suitable model of learning for this purpose. Evaluating the influence of Mobile-NOS model of learning application towards Students' understanding of nature of science, chemistry concept understanding, and scientific literacy on general chemistry learning are focus of this study. This study was carried out by posttest only control group design, in form of quasi experimental. There are 44 sample determined by saturated sampling technique of general chemistry students as population. Sample divided into two group equally, the experimental and control group. Data were collected by understanding nature of science questionnaire, scientific literacy test, and chemistry conceptual understanding test. Data was analyzed by independence sample t test. The result of the study showed that the application mobile-NOS model of learning make students better on understanding of nature of science, conceptual understanding, and scientific literacy

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