Relevance. The research addresses the need to enhance the methodological foundations of teaching chemistry through scientific experience, emphasizing the improvement of educational processes by integrating research and language skills development. Purpose. This study aims to develop a model for chemistry lessons that integrate content and language-integrated learning (CLIL) and project-based learning (PBL) at the laboratory research level, focusing on communication interaction in English. Methodology. Diagnostic testing with assessment using a five-point Likert scale is employed, analyzing data adapted from H.N. Kazantseva's �Learning Attitudes towards Academic Subjects� test. This approach identifies factors influencing student interest in lessons and specific fields, fostering motivational activation, critical thinking, cognitive skills, and research abilities. Results. The study presents a developed model of a chemistry lesson titled �Spectroscopy,� incorporating CLIL and PBL methods across lectures, practical classes, video lessons, and laboratory research. This model integrates scientific experiments on photon emission processes, electron behaviour, and other components, with practical applications such as analyzing emissions from water samples or other materials. The approach emphasizes communication in English, enhancing environmental studies, research skills, visibility in learning processes, thinking activity, and English language communication skills using scientific terminology. Conclusions. The integrated approach proposed in this research enriches the education system by fostering comprehensive learning experiences that integrate scientific inquiry, language proficiency development, and practical application in chemistry education. Keywords: content-language learning; oriented pedagogy; integrated chemistry lessons; spectroscopy