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In this paper we investigate how the passage through two master programs in Science and Technology Education from Córdoba and La Plata (Argentina) influences the performance of teachers who are pursuing those degrees. Our hypothesis was that such passage needed improving in practical work and research skills. To that end, the teachers were asked a number of questions regarding their practical work and the changes that could have been promoted by these graduate studies. This was complemented with class observations. Results show that the master's program generated changes in teaching practice, which developed or perfected their educational research skills, and that participation in research groups strongly depends on the institutional context. [ABSTRACT FROM AUTHOR]

This paper examines the treatment of the concept of ecosystem services in textbooks of middle and high schools from Spain. We reviewed scientific publications from a "community of experts" in order to define their conceptual frameworks, which act as epistemological referents along the didactic transposition. The majority of 50 analyzed textbooks mentioned some particular goods or ecosystem service examples, but only 10% of these defined their concept (especially earth and environmental science textbooks). These findings are related to the lack of conceptualization in the official curriculum. Direct services from ecosystems were treated more frequently than indirect ones. In addition, rainforests were found to be almost the sole providers of ecosystem goods, as there being an under-representation of the social, cultural and religious values of biodiversity. [ABSTRACT FROM AUTHOR]

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Copyright of Revista Electrónica de Enseñanza de las Ciencias is the property of Revista Electronica de Ensenanza de las Ciencias and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)