Students’ Perceptions of High School Science: What has Changed Over the Last Decade?

This paper presents comparative questionnaire data from three different samples of Australian high school students in an attempt to see if anything has changed in relation to how they perceive the science they experience in the compulsory years of secondary school (grades 7–10). Questionnaire data were obtained from 1,585 high school students in 2011 and 2,016 students in 2005 and findings are compared with those reported in a national report (Goodrum et al. 2001). Results show significant increases in the frequency with which students report that their science teacher takes notice of their ideas and in the use of computers and the Internet. There have also been changes regarding the rapid provision of feedback, the use of understandable language by teachers and the contextualisation of the new work in terms of work already covered. Little appears to have changed, however, in relation to the teacher-directed pedagogies employed to teach science where there appears to be a higher incidence of copying notes and fewer opportunities for students to investigate topics in which they are interested. The findings suggest that while there have been some positive changes, there are still many students who indicate that the science they experience in secondary school is irrelevant to their everyday life and to their future. It seems that the curiosity and wonder one would hope is associated with studying science is missing for a large proportion of students. It is clear that further actions need to be undertaken to transform this continuing situation.     

Lower Secondary Students’ Views in Astrobiology

Astrobiology is, on a profound level, about whether life exists outside of the planet Earth. The question of existence of life elsewhere in the universe has been of interest to many societies throughout history. Recently, the research area of astrobiology has grown at a fast rate, mainly due to the development of observational methods, and the media is frequently reporting on new research findings. International surveys show that astrobiology questions are among those that interest young people the most. The popularity of astrobiology and the way it captures much science content makes it an interesting area for science teaching. However, there is very little research directly focused upon students’ views in astrobiology. The study reported in this paper draws from the answers of 186 Swedish lower secondary students (16 years old) to a questionnaire, with closed and open-ended questions regarding their views of issues in astrobiology. The study was guided by the worldview theory (Cobern 1991; Cobern, Science Education 80(5):579–610, 1996; Cobern, Science and Education 9:219–246, 2000). The results show that even though basic reasoning in astrobiology is known by a majority of the students, there is a considerable number of students, for whom this is not the case. Furthermore, it was found that for all questions, there are students answering in different ways when asked to describe their own view and the view they associate with science researchers. The implications of the study for further research and for the teaching of astrobiology in science class are discussed.     

Reading Strategies in Children with Cerebral Visual Impairment caused by Periventricular Leukomalacia

Four children with cerebral visual impairment caused by periventricular leukomalacia were followed in an ethnographic clinical case study for two years during their process of learning to read in mainstream classes. When compared to children with ocular visual impairment, children with cerebral visual impairment often exhibit an uneven cognitive profile with visuo-spatial deficits but good verbal capacities. One main problem for children with deficits due to periventricular leukomalacia is decreased visual acuity with crowding, that is, an inability to identify symbols in a line, while single symbols of the same size may be identified. A question addressed in the study is what kind of strategies does the child with "crowding" problems develop in reading long words in print. Could Braille, as a sequential reading medium, be an alternative for the child with simultaneous visual problems? Two children were offered both Braille and print reading as reading media, one of whom preferred Braille after two years of training. The other two children read ordinary print without any special teaching. After two years, considerable differences in reading acquisition and reading strategies could be detected among the four children. No single factor seemed to account for the differences. Individual factors as well as teaching methods could be reasons for the differences.     

Children's Counterfactual Reasoning About Causally Overdetermined Events

In two experiments, one hundred and sixty-two 6- to 8-year-olds were asked to reason counterfactually about events with different causal structures. All events involved overdetermined outcomes in which two different causal events led to the same outcome. In Experiment 1, children heard stories with either an ambiguous causal relation between events or causally unrelated events. Children in the causally unrelated version performed better than chance and better than those in the ambiguous condition. In Experiment 2, children heard stories in which antecedent events were causally connected or causally disconnected. Eight-year-olds performed above chance in both conditions, whereas 6-year-olds performed above chance only in the connected condition. This work provides the first evidence that children can reason counterfactually in causally overdetermined contexts by age 8.     

CRITICAL FEATURES OF VISUALIZATIONS OF TRANSPORT THROUGH THE CELL MEMBRANE—AN EMPIRICAL STUDY OF UPPER SECONDARY AND TERTIARY STUDENTS’ MEANING-MAKING OF A STILL IMAGE AND AN ANIMATION

Images, diagrams, and other forms of visualization are playing increasingly important roles in molecular life science teaching and research, both for conveying information and as conceptual tools, transforming the way we think about the events and processes the subject covers. This study examines how upper secondary and tertiary students interpret visualizations of transport through the cell membrane in the form of a still image and an animation. Twenty upper secondary and five tertiary students were interviewed. In addition, 31 university students participated in a group discussion and answered a questionnaire regarding the animation. A model, based on variation theory, was then tested as a tool for distinguishing between what is expected to be learned, what is present in the visualizations, and what is actually learned by the students. Three critical features of the ability to visualize biomolecular processes were identified from the students’ interpretations of the animation: the complexity of biomolecular processes, the dynamic and random nature of biomolecular interactions, and extrapolation between 2D and 3D. The results of this study support the use of multiple representations to achieve different learning goals.     

“I have chosen another way of thinking”

The article builds upon a study where students’ relations to science are related to their worldviews and the kind of worldviews they associate with science. The aim of the study is to deepen our knowledge of how worldview and students’ ways to handle conflicts between their own worldview and the worldview they associate with science, can add to our understanding of students’ relations to science. Data consists of students’ responses to a questionnaire (N = 47) and to interviews (N = 26). The study shows that for students who have a high ability in science, those who have taken science-intense programmes in upper secondary school to a higher extent than others have worldviews in accordance with the worldviews they associate with science. This indicates that students who embrace a worldview different from the one they associate with science tend to exclude themselves from science/technology programmes in Swedish upper secondary school. In the article the results are presented through case studies of single individuals. Those students’ reasoning is related to the results for the whole student group. Implications for science teaching and for further research are discussed.     

‘The Talke of the Towne’: News,Crime and the Public Sphere in Seventeenth-Century London

This article reconsiders ideas of the public sphere in the seventeenth century, by focusing on how public opinion is shaped by the movement of information between media and between receivers. It contends that the scholarly preoccupation with a public sphere viewed exclusively in terms of politics obscures the fact that contemporaries did not distinguish between politics and subjects such as crime in their newsgathering. Examining the case study of James Turner, a burglar in the 1660s who became a cause célèbre in London and beyond, this article shows how crime news were eagerly exchanged, informing discussions and constructing public opinion.     

低幼儿童听力测验

早期干预能帮助弱听儿童可以更好地学习语言和沟通 ,也直接影响儿童的学习和成长。早期诊断 ,便成为早期干预的一个预先程序 ,可是要把听觉的毛病诊断出来 ,我们首先要明白如何测试不同年龄的儿童。这篇文章主要介绍了对不同年龄的低幼儿童进行行为听力测验的方法和技术