iStarDB (The Astronomy Education Research Repository)
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Can we understand citizen science?
No full textCitizen science is one of the most dramatic developments in science communication in the last generation. But analyses of citizen science, of what it means for science and especially for science communication, have just begun to appear. Articles in this first of two special issues of JCOM address three intertwined concerns in this emerging field: The motivation of citizen science participants, the relationship of citizen science with education, and the implications of participation for creation of democratic engagement in science-linked issues. Ultimately these articles contribute to answering the core question: What does citizen science mean
Preservice Science Teachers’ Beliefs about Astronomy Concepts
No full textThe purpose of this study was to investigate preservice science teachers' conceptual understanding of astronomy concepts. Qualitative research methods were used. The sample consists of 118 preservice science teachers (40 freshmen, 31 sophomores, and 47 juniors). The data were collected with Astronomy Conceptual Questionnaire (ACQ) that includes 13 open-ended questionnaires, and measured various aspects of astronomy such as sun, planets, and moon. Moreover, semi-structured interviews were carried out in order to examine further thoughts of the participants. The results indicate that preservice science teachers have several misconceptions about astronomy concepts. Each misconception is generally based on a common incorrect astronomy knowledge. They have also difficulties with basic definitions and interpret visuals of astronomy concepts. Moreover, there is no difference among the levels of students concerning understanding of astronomy concepts
Ten Years Of Latin-American Journal Of Astronomy Education RELEA: Achievements And Challenges For International Astronomy Education Development
No full textThis study reviews 10 years of Latin-American Journal of Astronomy Education (RELEA), showing that the journal
has become a valuable resource for publishing and highlights its pathway as scholarly journal. Furthermore, it is also a call to astronomy education specialists to consolidate their efforts considering similar journals worldwide. Publishing policies of the RELEA and their context are presented in relation to submission, refereeing and publication. The 75 articles published in 18 editions are analyzed and classified. The results showed an acceptance rate of 60.2%; an average of 7.5 articles per year/4.2 per issue. RELEA´s authors are mostly based in Brazil (81.3%); articles target chiefly a school level (university education: 28.0%, high school: 28.0%); their main study focus is learning and teaching (34.7%) and general astronomy content (33.3%). Our results show that compared to other Brazilian journals
of education, RELEA had twice as much astronomy articles. In the international scene there has been about a half of
astronomy education research, but twice of astronomy in science education research. The challenges related to
improve the article submission are discussed: how to increase their number, the submission of Latin American
countries, and how to bring in the issues and subjects not addressed until now. It is also encouraged graduate studies, new lines of research in astronomy education, and advertising the journal in universities and schools for professors and teachers. Finally, future possibilities are mentioned given the International Astronomical Union’s development programs
Interpretant Levels Presented By Higher Education Students About The Seasons
No full textThe aim of this study is to investigate the initial interpretant levels of the seasons of the year presented by students in a physics discipline of undergraduate course of a biological sciences degree at a state university of the south of Brazil. This study is qualitative, it analyzes textual oral representations and images about that astronomical phenomenon. It found that all students showed similar interpretant levels than those without any instruction, focusing their explanation of this concept in the variation of the distance between Earth and the Sun and indeterminate or confused representations. Another important result was the absence of a scientifically correct conception of the subject. The data from this study are in agreement with several studies on the weak training of science teachers in astronomy, and emphasizes the importance of both a re-structuration of the initial training of these future teachers, as well as the continuous teacher training of the working professional ones
A Google Earth Grand Tour of the Terrestrial Planets
No full textGoogle Earth is a powerful instructional resource for geoscience education. We have extended the virtual globe to include all terrestrial planets. Downloadable Keyhole Markup Language (KML) files (Google Earth's scripting language) associated with this paper include lessons about Mercury, Venus, the Moon, and Mars. We created “grand tours” of these bodies, guiding students to explore atmospheres, magnetospheres, landscapes, and interiors. The tours benefited from a study of 364 students in an introductory astronomy class. We compared learning outcomes for students using Google Earth versus static portable document format (PDF) files. In pre- and immediate posttests, there were small but statistically significant (p-value < 0.05) learning gains from the use of Google Earth; however, these did not persist in a long-term follow-up. There may have been insufficient differences between viewing text and images in Google Earth placemark balloons versus identical text and images in a PDF document. Consequently, we revised our tours, adding many more three-dimensional models, draped maps, and movies. We also assembled a table of links to virtual globes for other planets and moons, and a virtual solar system model, thus building a comprehensive teaching resource for introductory lunar and planetary science courses
Mapping the future of non-formal education and the scientific dissemination of astronomy in Brazil: A Delphi study
No full textNon-formal education and the dissemination of science are increasingly gaining importance around the world. Whilst astronomy in Brazil is no exception, its growth has however been slow and dispersed, institutions and activities across the country are uncoordinated, and no source exists that integrates relevant information and knowledge. To address these issues, this study uses a broad Delphi study, which includes a heterogeneous group of experts from all of the main regions of Brazil, to provide a first step toward integrating the field by mapping its current and future states. The topics that emerged during the study include, for example, working conditions, training and access to financing. A diverse set of problems and possible solutions were also identified, and these offer guidance for practice and educational policy. Opportunities for future research are also outlined
Learning in Earth and space science: a review of conceptual change instructional approaches
No full textIn response to calls for research into effective instruction in the Earth and space sciences, and to identify directions for future research, this systematic review of the literature explores research into instructional approaches designed to facilitate conceptual change. In total, 52 studies were identified and analyzed. Analysis focused on the general characteristics of the research, the conceptual change instructional approaches that were used, and the methods
employed to evaluate the effectiveness of these approaches. The findings of this review support four assertions about the existing research: (1) astronomical phenomena have received greater attention than geological phenomena; (2) most studies have viewed conceptual change from a cognitive perspective only; (3) data about conceptual change were generated pre- and postintervention only; and (4) the interventions reviewed presented limited opportunities to involve students in the construction and manipulation of multiple representations of the phenomenon being investigated. Based upon these assertions, the authors recommend that new research in the Earth and space science disciplines challenges traditional notions of conceptual change by
exploring the role of affective variables on learning, focuses on the learning of geological phenomena through the construction of multiple representations, and employs qualitative data collection throughout the implementation of an instructional approach
Teaching Weight-Gravity and Gravitation in Middle School
No full textThis study deals with the school instruction of the concept of weight. The historical review reveals the major steps in changing weight definition reflecting the epistemological changes in physics. The latest change drawing on the operation of weighing has been not widely copied into physics education. We compared the older instruction based on the gravitational definition of weight with the newer one based on the operational definition. The experimental teaching was applied in two versions, simpler and extended. The study examined the impact of this instruction on the middle school students in regular teaching environment. The experiment involved three groups (N = 486) of 14-year-old students (ninth grade). The assessment drew on a written questionnaire and personal interviews. The elicited schemes of conceptual knowledge allowed to evaluate the impact on students’ pertinent knowledge. The advantage of the new teaching manifested itself in the significant decrease of the well-known misconceptions such as “space causes weightlessness,” “weight is an unchanged property of the body considered,” and “heavier objects fall faster”. The twofold advantage—epistemological and conceptual—of the operational definition of weight supports the correspondent curricular changes of its adoption
A Multidimensional Investigation of Deep-level and Surface-level Processing
No full textThis study examines the moderating effects of a situational factor (i.e., text type) and an individual factor (i.e., subject-matter knowledge) on the relation between depth of processing and performance. One-hundred and fifty-one undergraduates completed measures of subject-matter knowledge, read either an expository or persuasive text about the existence of extraterrestrials while thinking aloud, and then completed a passage recall task and an open-ended task. Results indicated that the relation between depth of processing and the open-ended tasks was moderated by the type of text participants read (i.e., expository or persuasive). Moreover, there was a significant interaction between the passage recall measure and open-ended task for depth of processing and type of text