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This paper arises from research undertaken by educational semioticians and science educators investigating the use of student generated digital artefacts as assessment tasks in pre-service science teacher education. Part of a broader shift toward student-generated media in tertiary science, the use of such tasks is driven by the need to deepen pre-service primary teachers' understandings of content and to foster enthusiasm for teaching science. However, the tasks are challenging as students must demonstrate both content and meta-semiotic knowledge in these brief digital standalone presentations. In the paper, we draw on artefacts, interviews and assessment practices to demonstrate these challenges. We identify what have emerged as key semiotic understandings necessary to complete a successful response to the task, arguing that these include multimodal understandings as well as knowledge of disciplinary specific representational practices. We describe an intervention informed by functional social semiotics and scaffolded literacy approaches with key features including use of an exemplar text for deconstruction and an explicit instructional sequence with a tailored assessment rubric. The paper reports both theoretical and practical insights and seeks to contribute to emerging analytical frameworks as well as multimodal literacy assessment.

We report a case study of two highly qualified science teachers as they implemented laptop computers in their Years 9 and 10 science classes at the beginning of the "Digital Education Revolution," Australia's national one-to-one laptop program initiated in 2009. When a large-scale investment is made in a significant educational change, it is important to consider teachers perspectives and responses to such change and we draw from sociocultural perspectives for our analysis. Through interviews and classroom observations, our interpretive analysis identified four key tensions and contradictions. These include the following: (1) barriers to innovative science teaching; (2) maintaining classroom and school connectivity; (3) teacher versus student expectations; and (4) changes to classroom management. Analysis leads to implications for the future of this and similar programs. The study shows that while these two teachers were committed to developing and delivering technology-rich science lessons, there were many factors that challenge how the implementation progressed. The findings from this study have implications for the continued engagement of teachers in this and other jurisdictions considering the introduction of one-to-one laptop programs.

The teaching of science, especially at pre-college and teacher education levels has undergone tremendous transformation over the years: from teacher-centred transmission to student-centred approaches rooted in constructivism. Whereas constructivism has been charged with all manner of shortfalls, it still can be of benefit to the way physics instructions are organized and implemented. In this paper, the importance of learners' prior knowledge in understanding physics concepts is discussed. This study comprised a case of two cohorts of physics teacher candidates who had strong content knowledge of physics, but lacked pedagogical knowledge as demonstrated by their struggles to implement appropriate grade-level strategies in physics problem solving tasks (which are amenable to a variety of mathematical tool-choices). The case cohorts we used as exemplars to underscore the importance of learners' prior mathematical knowledge. Further, we focus on implications for pre-service teacher preparation, and the effects mathematical tool-choice can bear on students' conceptions. (Contains 1 figure and 2 tables.)

If issues in the history and philosophy of science and those related to science, technology and society are generally accepted in policy, how ought these be handled in practice? Mandate in policy does not guarantee implementation in practice. Indeed, HPS and STS have for decades been marginalized in the curriculum. Subject areas designated to teach components of HPS and STS, such as design and technology, social studies and science, seem preoccupied with other aspects of the curriculum and rarely get around to HPS and STS. This study aimed at eliciting pre-service physics teachers' perspectives on using HPS to address quantum mechanics and scientific literacy. Through questionnaires, observation of and participation in a physics methods class, 16 pre-service teachers were asked to identify topics they considered problematic to teach or learn. They were challenged to identify those topics that could effectively be taught or learned from HPS. The pre-service teachers agreed that HPS and STS were more appealing for teaching some topics, such as quantum mechanics, which is the focus of this article. This intervention in physics teacher education demonstrates the importance of using specific methods in physics instruction to demonstrate the value of HPS in scientific literacy.

Students in small rural schools in British Columbia face barriers to accessing senior science courses. A case study employing questionnaire and interview methods sought the perspectives of principals, teachers, and students in the affected schools on this issue. Interpretive data analysis revealed the following barriers as key factors that affect students' successful access to senior science courses: staffing at the school, availability of specialist teachers, trusting relationships between students and teachers, and the school and local cultures. The study considers these factors as constituting a border between students and school science, the crossing of which mediates students' access to the culture of school science.

Many preservice primary teachers have inadequate science knowledge, which often limits their confidence in implementing the subject. This paper proposes a new way for preservice teachers to learn science by designing and making a narrated stop-motion animation as an instructional resource to explain a science concept. In this paper, a simplified way for preservice teachers to design and make an animation called ‘slowmation’ (abbreviated from ‘slow animation’) is exemplified. A case study of three preservice primary teachers creating one from start to finish over 2 h was conducted to address the following research question: How do the preservice primary teachers create a slowmation and how does this process influence their science learning? The method of inquiry used a case study design involving pre- and post-individual interviews in conjunction with a discourse analysis of video and audio data recorded as they created a slowmation. The data illustrate how the preservice teachers’ science learning was related to their prior knowledge and how they iteratively revisited the content through the construction of five representations as acumulative semiotic progression: (i) research notes; (ii) storyboard; (iii) models; (iv) digital photographs; culminating in (v) the narrated animation. This progression enabled the preservice teachers to revisit the content in each representation and make decisions about which modes to use and promoted social interaction. Creating a slowmation facilitated the preservice teachers’ learning about the life cycle of a ladybird beetle and revised their alternative conceptions. [ABSTRACT FROM PUBLISHER]

Research has identified the value of learners using technology to construct their own representations of science concepts. In this study, we investigate how learners, such as preservice elementary teachers, design and make a narrated animation to represent their science knowledge. The type of animation exemplified is called a 'Slowmation' (abbreviated from 'Slow Animation'), which is a simplified way for preservice teachers to make an animation that integrates features from claymation, object animation, and digital storytelling. Drawing on semiotic theory, a case study of three preservice elementary teachers, who were audio and video recorded as they created a slowmation, illustrates how the construction process enabled them to engage with a science concept in multiple ways. Findings suggest that when preservice teachers create a slowmation, they design and make a sequence of five representations, each being a semiotic system with particular affordances that link as a semiotic progression: (i) research notes; (ii) storyboard; (iii) models; and (iv) digital photographs, which culminate in (v) a narrated animation. In this study, the authors present their theoretical framework, explain how the preservice teachers created a slowmation using a sequence of representations to show their science knowledge and discuss the implications of these findings for learners in universities and schools. © 2011 Wiley Periodicals, Inc. J Res Sci Teach 48: 985-1009, 2011 [ABSTRACT FROM AUTHOR]

In recent years, participation rates in the British Columbia (BC) provincial physics exams have been low, compared with chemistry and biology. A qualitative study employing questionnaire and interview methods sought the views of teachers and students of senior science courses on why this is the case. Data analysis revealed that students' decisions about Physics 12 were influenced by their perceptions of the mathematical content of physics, the physics teachers' personalities and teaching styles, the perceived difficulty of physics, and prior experience of physics. We conclude that enhancing student interest in taking physics at advanced high school levels may necessitate a wider, more articulated exposure to topics in physics, together with more careful attention to mathematical background and skills. [ABSTRACT FROM AUTHOR]