In this article, we defend that in the teaching/learning of the electricity, its contents must be associated with contents concerning the structure and behaviour of the matter. Thus, it is possible to understand some electricity topics as the influence of the temperature on electric behaviour of materials. In this sense, we propose a conceptual framework for its teaching, coherent with the Spanish Physics and Chemistry curriculum of Secondary Education. Likewise, we show the results of a research carried out with 60 pupils (age 14-15), about theirs understanding levels and theirs learning difficulties regarding considered topic.