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This book by Lizette Widing investigates the effectiveness of modelling-based teaching in the context of polymer chemistry for multilingual secondary school students in Sweden. The study involves 30 students, both Swedish speakers and second language learners, and examines how these students create, discuss, and evaluate representations to understand complex chemical concepts. The research utilizes a sociocultural and social semiotic framework to analyze audio, video recordings, and photographs collected during the teaching activities. The findings highlight the importance of student-active approaches and the use of social semiotics as a tool for improving students' meaning-making and conceptual understanding in chemistry.

Chemistry --- Multilingual education. --- Study and teaching.