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Title: Interactive Dichotomous Key for identifying rocks: a proposal to use with high school students
Authors: Batista, Adriana
Dias, Rui
Silva, Vânia
Pereira, Eduardo
Gomes, Adelina
Paiva, André
Soares, Alexis
Nascimento, Francisco
Leal Machado, Isabel
Silva, Mário
Keywords: Dichotomous key
Earth Sciences
Issue Date: 2021
Publisher: Sociedad Geológica de España
Citation: A. Batista, A., Dias, R., Silva, V., Pereira, E., Gomes, A., Paiva, A., Soares, A., Nascimento, F., Leal Machado, I., Silva, M. (2021). "Interactive Dichotomous Key for identifying rocks: a proposal to use with high school students Clave dicotómica interactiva para la identificación de rocas: una propuesta de aplicación en la educación secundaria en Portugal". X Congreso Geológico de Espanha, Vitória (Espanha). Geo-Temas 18, ISSN: 1576-5172 (versión impresa) 2792-2308 (versión digital), 626-629.
Abstract: The Estremoz Science Center has as main objective the dissemination and scientific literacy of population, with special emphasis on Earth Sciences. Recently, it has developed an unprecedented tool for identifying rocks: a dichotomous key called “What rock is this?” This key is the result of an extensive reflection and conceptualization that had as main goal the application of the concept of dichotomous key to Earth Sciences, which is remarkably rare, namely to the identification of common lithotypes. This dichotomous key is innovative, once the beginning is totally random and the user can choose its own path. This tool is extremely powerful because, depending on the sample to be identified, the user can select the most visible and distinctive features to begin, contrary to traditional dichotomous keys that imply a fixed and watertight path. In addition, this key is identical for any type of rock, not starting from a previous knowledge of its nature (i.e., sedimentary, igneous or metamorphic) to classify the sample. The use of this dichotomous key must be understood as a supporting tool for the identification and classification of rocks, which can be fundamental for the Earth Sciences teaching, whether in a formal or non-formal environment.
Type: article
Appears in Collections:ICT - Artigos em Livros de Actas/Proceedings

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