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This paper presents and describes a teaching proposal designed to favor the learning of the phenomenon of electromagnetic induction (EI) as well as the development of general digital skills. It was designed taking in account various aspects, such as: the guidelines official curricular, the results of research on conceptions and reasoning of students and the contributions related to how science is learned and taught, as well as the potentiality of ICT to favor the learning desired. The proposal was implemented in a course with students 17-18 years old and the results obtained allow perceive that the sequence has contributed to achieve a better understanding of the key ideas associated with EI, at the same time implied to the students in the use of different technological resources and with it the development of inherent abilities to such use. [ABSTRACT FROM AUTHOR]

Numerous research in teaching biology shows that learning the theory of biological evolution is very complex. In this paper we present the theoretical foundations of a didactic proposal based on the modeling and metacognition on the epistemological obstacles in relation to the learning of this content. This proposal aimed at students to build a model of evolution by natural selection and allopatric speciation, while reflecting on the learning strategies used in this process and on the epistemological obstacles that make this work difficult. In addition to developing the fundamentals of the didactic proposal we offer some concrete examples of activities. [ABSTRACT FROM AUTHOR]

This paper analyzes the comments that were published (Olivares Campiño, 2014) in response to a previous article of mine on the teaching of chemical formulation in the secondary school classroom (Fernández González, 2013). It highlights the disparity between the science teaching approach in my article and the discipline-oriented approach in the comments responding to my article. The author of the response interprets the differences between the two approaches as errors when these differences actually stem from a process of didactic transposition that adapts expert knowledge to the needs of secondary school students. This paper defends the coherence of my proposal for the teaching of chemical formulation, which is based on the historical atomic model and the concept of valence. This proposal is thus a science classroom model, which can change and evolve as the student reaches higher academic levels. Without a single reference to PCK, the response to my article mainly focuses on aspects related to norms and standards as well as to the discipline itself. This paper satisfactorily addresses these criticisms and underlines that formulation is a means of learning Chemistry and should not be conceived as an end in itself. [ABSTRACT FROM AUTHOR]