Las Unidades Didácticas escolares, basadas en competencias, como eje estructurante de la Didáctica de la Física y Didáctica de la Química para la formación inicial de profesores de secundaria

During the course 2009/2010 the Masters in Secondary Education Teacher’s Training (MFPS) started in the UCM and now four classes of students have finished theirs studies. At this point, on request of the Journal Eureka, the teachers in the area of Sciences have the opportunity to compare the training proposals that different universities are developing. In this paper, we characterize the organization of the subjects of Didactics of Physics and Didactics of Chemistry in the UCM, from the descriptors and competences analysis, contents and assessment. Later, we advance further into the use of didactic units as tools to structure the courses and we show the development model created for this purpose.