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This article shows the results of research work on the development of critical thought in Natural Science with secondary school students at the Boyacá Educational Institution, conducted within the Master’s Degree program on Education and Human Development at the University of Manizales. *Doctor en Ciencias de la Educación. Profesor Titular Universidad de Caldas, Manizales, Colombia. Correo electrónico: yasaldez@ucaldas.edu.co ** Doctorante en Didáctica de las Ciencias Naturales. Docente en Magisterio Risaralda, Pereira, Colombia. Correo electrónico: luzde81@hotmail. com Recibido: 11 de julio de 2017 | Aceptado: 12 de diciembre de 2017

Development of critical thinking in Natural Science whit secondary school students in an Educational Institution in Pereira - Risaralda