TLS focused on problem-solving were drafted in a partially subsidised private school in the city of Viña del Mar,
Chile. In this context, a group of researchers from four disciplines (Biology, Physics, Geography and Chemistry)
worked in a logic of participative observation with the school's teaching team in the following subjects: Biology,
Physics, History, Geography and Social Sciences, Mathematics and Philosophy. They were all secondary school
teachers, with pupils aged between 14 and 18, from a middle to low socio-economic background. The research
process was supported by a group of Science-pedagogy and Geography university students, and by the school
directors.