Contextualized and socially relevant hands-on activities are an effective way to promote students’ involvement in the construction of knowledge. Considering the UN’s 2030 Agenda for Sustainable Development, the preservation of water resources is crucial for the sustainable development of a country. Therefore, the PVC project was implemented in the context of water quality monitoring. There were 440 students and 9 chemistry teachers involved. A low-cost portable pedagogical kit was developed in order to determine the temperature, turbidity, pH, concentration of nitrates and nitrites, percentage of dissolved oxygen, salinity, and presence of microplastics in coastal water samples. The results indicate that the hands-on activities have contributed to the learning of chemical contents related to water quality parameters. Finally, the commitment, motivation, and autonomy of the participating students should be highlighted.
The active participation of citizens in scientific research, through citizen science, has been proven successful. However, knowledge on the potential of citizen science within formal chemistry learning, at the conceptual...
Exploring chemistry through its presence in the literature in general, and poetry in particular, may increase students' curiosity, may enhance several basic skills, such as writing, reading comprehension and argumentative skills, as well as may improve the understanding of the chemistry topics covered. Nevertheless, the pedagogical potential of the link between poetry and chemistry has not yet been fully explored in school. This article describes a study during which a teaching strategy was used with pre-university students of introductory chemistry in order to explore the topics atomic radius and ionization energy by resorting to a poem about alkali metals. The study resulted in new poems and cartoons of chemical elements created by the students, which, together with the results of a questionnaire survey, were positive indicators of the impact of poetry in the motivation and learning of the chemistry topics explored. While the students showed some difficulties interpreting the poem, they considered that teaching chemistry with poetry is a motivating strategy that should be used more often, and that it enhances the students' engagement in the construction of significant learning.
A storytelling approach has been seen as a powerful way to teach science and arouse interest and promote positive attitudes toward learning science in the early years. The purpose of our study was to determine how middle school students – Key Stage 3 (KS3) aged 12–14 in Portuguese schools – experienced learning chemistry through storytelling and how they, in turn, experienced creating stories using a storytelling approach with pre-school children. We aimed to perceive the appropriation of concepts of chemistry by the pre-school children through their drawings, the results collected during the pedagogical intervention and the recordings of the discussions between the pre-school children, the students and the pre-school teachers. The KS3 students were also given a self-assessment questionnaire as a way of assessing the pedagogical dynamics and the drive and motivation to learn chemistry. The study involved 53 children: 16 from KS3 and 37 from pre-school. The intervention took place during the KS3 students’ chemistry classes and during the pre-schoolers’ “storytelling moment”, a weekly 1 hour activity that took place at their kindergarten. We found that the use of a storytelling approach complemented with hands-on activities, as a strategy to teach acid–base content to KS3 students, contributed to their learning. Moreover, it was an important experience, which motivated them to write their stories and to prepare the activities for the pre-schoolers. We also found that the interaction of the older students with the pre-schoolers was profitable for both parts, since this type of activity promotes the acquisition of knowledge. During the “storytelling moment” and the hands-on activities with the pre-schoolers, we were able to witness that the younger students understood the concepts, enjoyed the interaction and felt captivated to learn science, through the questions they posed, the informal conversations and the drawings they made. This study showed us that the use of stories and hands-on activities is an effective strategy in motivating young people to learn chemistry.
Na década de 1970 houve uma piora na qualidade da preservação ambiental, devido ao crescimento econômico e populacional e, consequentemente, na vida da sociedade dos grandes centros urbanos. Com isso, a ideia de que os recursos naturais não são infinitos gerou os primeiros esboços do conceito de desenvolvimento sustentável. Nesse sentido, se o turismo for bem planejado, haverá condições de ocorrer inovações dentro de um plano de desenvolvimento do local. Dessa maneira, o presente trabalho tem como objetivo verificar as possibilidades e limitações, levantar os impactos positivos e negativos, assim como, identificar as formas de lazer e turismo desenvolvidas na Barragem Piracuruca, localizada no município de Piracuruca, Estado do Piauí. Para isso será discutida a relação entre a atividade turística e o meio natural, sendo que, dentro desta relação, será aplicado o conceito de desenvolvimento sustentável. Foram realizadas pesquisas bibliográficas em livros e artigos, voltados para turismo e paisagem, aproveitamento das águas para lazer e turismo, e, ainda, em leis e documentos de instituições ligadas ao uso e gestão dos recursos hídricos no Brasil. Também foi realizada pesquisa de campo, com o objetivo de registrar, fotograficamente a movimentação de visitantes na referida barragem. Para identificar as formas de turismo praticadas na barragem, baseou-se na observação direta, sendo relacionada à literatura conceitual sobre segmentação do turismo (BRASIL, 2006a). Com relação aos impactos positivos e negativos da atividade turística desenvolvida, também foi realizada observação direta, utilizando-se o Guia de Desenvolvimento do Turismo Sustentável (OMT, 2003) para respaldar os resultados encontrados. Concluiu-se que as possibilidades de desenvolvimento de atividades de lazer e do turismo em contato com o meio natural na barragem são muitas, destacando-se banho aquático e de sol, pesca, mirante, campeonato de jetski e show acústico. Outras atividades também podem ser executadas, desde que haja uma logística de estruturação e de infraestrutura, mostrando-se favorável ao desenvolvimento do ecoturismo, turismo de esportes, turismo de pesca, turismo náutico, turismo de aventura, turismo de sol e praia. Mas, a barragem sofre constantemente com o problema do lixo e despejo indevido de esgoto em suas águas, o que favorece os riscos à saúde da população e dos visitantes. Além disso, notou-se que a população piracuruquense mais carente está vivenciando um processo de “marginalização territorial”, onde as casas mais pobres estão sendo afastadas da barragem e substituídas por construções mais luxuosas, o que demonstrou uma grande especulação imobiliária em toda a extensão da construção, o que não deixa de ser limitações ao desenvolvimento do turismo. A Barragem Piracuruca, tendo como atrativo suas belezas naturais, dispõe de boas condições para desenvolver o turismo, o que deve ser feito com prudência e diligência por parte da administração pública e pelos próprios visitantes.
The promotion of positive attitudes towards science is an important goal of science education. This research aimed to identify students' attitudes towards science and whether their participation within a citizen science project has contributed to positive attitudinal changes. So, an attitudinal scale was developed, validated, and applied (as a pre and post-test) to 574 students aged between 12 and 14 years old. Positive attitudes towards science were recorded from the outset among children of both groups. Students' participation within the experimental group enhanced relevant positive attitudinal changes at the level of the critical analysis dimension, related to the perception of skills development such as questioning or critical thinking. Furthermore, positive attitudinal changes were achieved within the affinity dimension, related to perceived self-efficacy and appreciation of science and science classes. Positive attitudinal changes towards science among students indicate that citizen science contributes to enhance affective and attitudinal domains of their scientific literacy. Keywords: attitudes towards science scale, attitudinal changes, citizen science, science education, water quality monitoring
RESUMONo turismo há características sociais e econômicas que são particulares de um atrativo turístico; aliada a esses elementos, a percepção ambiental é um processo relevante, em razão de mostrar características subjetivas relacionadas à prática turística, caracterizada pela relação: turista e meio ambiente. Dessa forma, a compreensão do turismo realizado no Parque Ecológico Cachoeira do Urubu, no Estado do Piauí, é importante pela frequência de visitantes no período chuvoso. Assim, a relevância da percepção ambiental no Parque possibilitou o entendimento às concepções dos turistas no que se refere à conservação do local, limpeza, infraestrutura, e experiência afetiva com o espaço.
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