INVESTIGACIONESAprendizaje basado en problemas: evaluación de una propuesta curricular para la formación inicial docente RESUMENLas distintas miradas y lecturas que hacemos de los avances en psicología y educación nos llevan a preguntarnos cómo mejorar el aprendizaje en nuestros estudiantes y cuál es la mejor forma de orientarlos a descubrir el conocimiento. Sabemos que la tendencia es dejar de ser, nosotros, los profesores, los protagonistas y dejar que lo sean los estudiantes. En el trabajo pedagógico, a nivel universitario, existe una oportunidad muy clara para implementar alternativas metodológicas innovadoras que provoquen un mayor éxito en el aprendizaje de los alumnos. En el presente artículo se describe una experiencia metodológica basada en el aprendizaje activo y que coloca al alumno en el centro del proceso de enseñanza. Se muestran los resultados observados al implementar el enfoque curricular de aprendizaje basado en problemas (ABP) en la Facultad de Humanidades y Educación de la Universidad de Atacama.Palabras clave: aprendizaje basado en problemas, enfoque curricular, estudiantes. ABSTRACTThe different looks and readings that we do of the progress in current psychology and education make us reflect on how to improve our students' learning and what is the best way to help them discover knowledge by themselves. We know that the new trend is for teachers to stop being the protagonists, allowing the students to take up this role. When teaching at the university level, there is a good chance of implementing innovative methodological alternatives to promote great success in students' learning. The present article describes a methodological experience on active learning -known as problem -based learning (PBL) which places the student in the center of the learning process. The experience relates to students from the School of Humanities and Education of the University of Atacama. The results are shown in the present article.Key words: problem-based learning, curricular approach, students. RESUMO Os diferentes olhares e leituras feitas dos avanços relacionados à psicologia e educação, levam a questionamentos sobre como melhorar a aprendizagem de estudantes e sobre qual é a melhor forma de orientá-los para descobrirem o conhecimento. Reconhece-se a tendência de professores deixarem de ser protagonistas a fim de que estudantes passem a sê-los. No trabalho pedagógico em nível universitário, há oportunidade bastante clara para implementar alternativas metodológicas inovadoras por meio das quais estudantes obtenham mais êxito na aprendizagem. Descreve-se uma experiência metodológica baseada na aprendizagem ativa, na qual o estudante é centro do processo de ensino.

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In this study, It was analyzed the implementation of laboratory activities in the pre-service science teacher’s training and how they contribute to the construction of a contemporary epistemic vision of the nature of science. A cross-sectional study was developed in two different undergraduate programs of pre-service science teacher training in a university in Colombia of. We analyzed the way laboratory activities are developed in nine science subjects of physics, chemistry, and biology, apart from the first to the eight semesters of the curriculum (10 semesters in total). Results indicate that the laboratory activities focused on the development of pre-defined techniques and procedures, giving little prominence to creativity, doubt, discussion, planning, and application, even though they are also characteristic activities of scientific work. This kind of laboratory activities does not seem to favor th e construction of a contemporary conception of the nature of science in future science teachers.