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1.
We examine teachers’ use of resources as they prepare to teach the topic of numerical series of real numbers, in order to identify how their personal relationship with mathematical content—and its teaching—interacts with their use of a commonly used textbook. We describe this interplay between textbook and personal relationship, a term coined in the Anthropological Theory of the Didactic (ATD, Chevallard, 2003), in terms of documentation work (resources, aims, rules of action, operational invariants), a key construct from the documentational approach (DA, Gueudet & Trouche, in Educational Studies in Mathematics, 71, 199–218, 2009). We do so in the case of five post-secondary teachers who use the same textbook as a main resource for teaching the topic. Documentational analysis of interviews with the teachers led to the identification of their aims and rules of action (the what and how of their resource use as they organise their teaching of the topic) as well as the operational invariants (the why for this organisation of their teaching). We describe the teachers’ documentation work in two sets of aims/rules of action: scaffolding mathematical content (series as a stepping stone to learning about Taylor polynomials and Maclaurin series), and organising student learning about series through drill exercises, visualisation, examples, and applications. Our bridging (networking) of theoretical constructs originating in one theoretical framework (personal relationship, ATD) with the constructs of a different, yet compatible, framework (documentation work, DA) aims to enrich the latter (teachers’ documentation work) with the individual agency (teachers’ personal relationships with the topic) provided by the former.  相似文献   

2.
In this article thought experiments are uncovered as key stimuli of philosophical potential in children’s literature and their presentation and function is examined in a selection of focal texts, including: Lewis Carroll’s Alice’s Adventures in Wonderland (1865) and Through the Looking-Glass (1871); Even the Parrot by Dorothy Sayers (1944); Nina Bawden’s Carrie’s War (1974); and A Game of Soldiers (1985) by Jan Needle. The thought experiment is a device common to science and philosophy and has been recognised as an heuristic tool in literature generally, but here children’s literature is drawn into the conversation, revealing that—as a dynamic mechanism of children’s narrative—thought experiments have a long-standing and particular role to play in books for young people. This paper connects with a recent turn in children’s literature discourse toward the conditions of power in books for young readers; it moves on the debate by demonstrating that the apparatus of thought experimentation places the implied child reader in a position of philosophical responsibility and forward thinking. Presenting thought experiments in different ways, formal properties of the thought experiment—such as conversational mode, double engagement and modal positioning—are identified and shown to open up a philosophical space of subsequence in children’s texts.  相似文献   

3.
As critical study of adapted texts moves away from a focus on fidelity to explore questions of adaptive practice, picturebook to film adaptation offers unique opportunities to redirect discourse related to the value of adaptive changes. Because feature-length films made from children’s picturebooks require filmmakers to add substantial content, they open discussion of how adaptive changes engage key ideas related to children’s literature more broadly, including dual audience, didacticism, and aetonormativity. This essay explores how these concepts transform in picturebook to movie adaptation, drawing on two family films made from iconic picturebook source texts—Dr. Seuss’s The Lorax (1971) and Chris Van Allsburg’s Jumanji (1981)—to posit that added content foregrounds adult presence within the story and participation in viewership far more than in the films’ picturebook counterparts, positioning adults as learners while at the same time reinforcing adult/child hierarchies.  相似文献   

4.
Engaging students as partners (SaP) in teaching and learning is an emerging yet contested topic in higher education. This study interviewed 16 students and staff working in partnership across 11 Australian universities to understand how they conceptualised SaP and the opportunities they believed SaP afforded their universities. Thematic analysis revealed three overlapping conceptions of partnership: SaP as counter-narrative, SaP as values-based practice, and SaP as cultural change. The findings are first interpreted through the lens of liminality and an ethic of care. This is followed by a discussion of inclusivity of involvement, resistance, and reinforcement of neoliberal agendas despite good intentions. Finally, implications for cautious enactment of both practice and research are offered.  相似文献   

5.
In recent years, research on higher education has increasingly examined the realities of internationalisation, with a particular focus on international students’ experiences and internationalisation at home programs. These studies have explored the friendships of international students, including their relationships with both locals and internationals from other countries. However, local students’ perspectives and experiences of friendship are largely absent from this literature. The few accounts examining local students’ lives explicitly focus on improving their cross-cultural knowledge and engagement, or on rare cases of local–international student friendships. The overriding assumption in this literature is that the understandings and social practises of local students are major barriers to their relationships with internationals. This paper addresses this gap by exploring local students’ perspectives on the absence of friendships with their international peers. We utilise findings from a research project on internationalisation at home, involving interviews and focus groups with local and international students and staff at an Australian university. Focusing on locals’ discussions of potential friendships with internationals, we propose that these missing friendships are an important area of study. We find that these friendships are missing for several interrelated reasons: local–international friendships are considered unnecessary and are therefore unimagined by locals, who tend to assume that similarity and affinity naturally lead to friendships, and the structures and spaces that might facilitate friendships are absent. Ultimately, uncovering why these friendships are missing sheds fuller light on how relationships might be facilitated, potentially informing and improving universities’ internationalisation initiatives.  相似文献   

6.
In plants, lipoxygenases (LOXs) play a crucial role in biotic and abiotic stresses. In our previous study, five 13-LOX genes of oriental melon were regulated by abiotic stress but it is unclear whether the 9-LOX is involved in biotic and abiotic stresses. The promoter analysis revealed that CmLOX09 (type of 9-LOX) has hormone elements, signal substances, and stress elements. We analyzed the expression of CmLOX09 and its downstream genes—CmHPL and CmAOS—in the leaves of four-leaf stage seedlings of the oriental melon cultivar “Yumeiren” under wound, hormone, and signal substances. CmLOX09, CmHPL, and CmAOS were all induced by wounding. CmLOX09 was induced by auxin (indole acetic acid, IAA) and gibberellins (GA3); however, CmHPL and CmAOS showed differential responses to IAA and GA3. CmLOX09, CmHPL, and CmAOS were all induced by hydrogen peroxide (H2O2) and methyl jasmonate (MeJA), while being inhibited by abscisic acid (ABA) and salicylic acid (SA). CmLOX09, CmHPL, and CmAOS were all induced by the powdery mildew pathogen Podosphaera xanthii. The content of 2-hexynol and 2-hexenal in leaves after MeJA treatment was significantly higher than that in the control. After infection with P. xanthii, the diseased leaves of the oriental melon were divided into four levels—levels 1, 2, 3, and 4. The content of jasmonic acid (JA) in the leaves of levels 1 and 3 was significantly higher than that in the level 0 leaves. In summary, the results suggested that CmLOX09 might play a positive role in the response to MeJA through the hydroperoxide lyase (HPL) pathway to produce C6 alcohols and aldehydes, and in the response to P. xanthii through the allene oxide synthase (AOS) pathway to form JA.  相似文献   

7.
Starting with an elementary problem that appeared in the Putnam mathematics competition, we proceed to discuss some techniques of transcendental number theory and prove the following result. If p, q, r are distinct primes and if c is a real number with the property that pc, qc, rc are integers, then c must be a non-negative integer. The tools used are some linear algebra and complex analysis. The zero-density estimate method discussed here was used by Alan Baker to prove his celebrated theorem on linear forms in logarithms. The question as to whether we can replace three primes by two primes is an open question.  相似文献   

8.
The inclusion of the practice of “developing and using models” in the Framework for K-12 Science Education and in the Next Generation Science Standards provides an opportunity for educators to examine the role this practice plays in science and how it can be leveraged in a science classroom. Drawing on conceptions of models in the philosophy of science, we bring forward an agent-based account of models and discuss the implications of this view for enacting modeling in science classrooms. Models, according to this account, can only be understood with respect to the aims and intentions of a cognitive agent (models for), not solely in terms of how they represent phenomena in the world (models of). We present this contrast as a heuristic—models of versus models for—that can be used to help educators notice and interpret how models are positioned in standards, curriculum, and classrooms.  相似文献   

9.
Children as readers of picture books and the ways they respond to, and make meaning from, such texts are the focus of this article, which reports on a small-scale study undertaken in Norway and Wales, UK. The theoretical framing of the research draws on concepts of the multimodal ensemble in picture books and of the reading event as part of a social practice. The research design was developed from the team’s analysis of two texts, Pappa by Svein Nyhus (1998) and What does Daddy Do? by Rachel Bright (2009). Twenty-four children, who were 7 and 8 years old, took part in the study. This was built around two reading events for each book, staged as an immediate response and as a guided response. The data subsequently collected were analysed according to three overarching organisational principles, as book world, real world and play world. For both Daddy and Pappa, the first reading event showed the children’s responses were mainly directed towards exploring the book world. On the second reading event, references to the real world predominated for Daddy, while for Pappa the book world was again dominant. Across both reading events and for both books, the playworld revealed those occasions when the children expanded the meaning of the story, demonstrating an inventive ability to play with the text. Overall, the children’s responses moved fluidly across the three worlds, showing them to be energetically making connections between the reading, their experience of books and their own lives.  相似文献   

10.
In the twenty-first century, the Gothic has experienced a cultural resurgence in literature, film, and television for young adult audiences. Young adult readers, poised between childhood and adulthood, have proven especially receptive to the Gothic’s themes of liminality, monstrosity, transgression, romance, and sexuality (James, 2009, p. 116). As part of the Gothic’s incorporation into a broad range of texts for young people, the school story—a conventionally realist genre—has begun to include supernatural gothic characters including vampires, witches, angels, and zombies, and has once again become a popular genre for young readers. In the past decade, in particular, a large number of Gothic young adult series with female protagonists set in boarding schools have been published (These include Shadow Falls (2011–2013) by C.C. Hunter, Covenant (2011–2013) by Jennifer L. Armentrout, House of Night (2007–2014) by P.C. Cast, Mythos Academy (2011–2014) by Jennifer Estep, The Dragonian (2013–2015) by Adrienne Woods, The Morganville Vampires (2006–2014) by Rachel Caine, Blue Bloods (2006–2013) by Melissa de la Cruz, and Fallen (2009–2012) by Lauren Kate). In this article, we will consider the first books in three such supernatural Gothic series that feature vampires and witches: Richelle Mead’s Vampire Academy (2007), Claudia Gray’s vampire romance Evernight (2008) and Rachel Hawkins’ Hex Hall (2010). These books are significant for the ways in which the traditional school story is adapted and transformed by the Gothic to define models of contemporary girlhood. Although Diane Long Hoeveler suggests that “the ‘body’ that emerges from female gothic textuality is a highly gendered one” (1998, p. 18), what we see in these texts is how the school story setting enables Gothic female protagonists who are unique, disruptive, and potentially transformative, despite the limitations enforced by the heterosexual romance plot. We argue that these novels, while conservative in some respects, rework the school story genre in that they foreground the sexual and romantic desires of girl protagonists regardless of the threat they constitute to the institution and the safety of others.  相似文献   

11.
In this study, we aimed to examine the inhibitory effect of PA003, a Pediococcus acidilactici that produces lactic acid and antimicrobial peptides pediocin, on pathogenic biofilm formation on abiotic surfaces. PA003 and pathogens (Escherichia coli, Salmonella enterica serovar Typhimurium, Staphylococcus aureus and Listeria monocytogenes) were used to evaluate auto-aggregation, hydrophobicity, biofilm formation and biofilm formation inhibition on stainless steel, polyvinyl chloride and glass slides in terms of exclusion, displacement and competition. The results showed the highest auto-aggregation abilities were observed for one of the E. coli strains EAggEC (E58595) and the highest hydrophobic strain was observed with EPEC (E2348/69) (51.9%). The numbers of biofilm cells of E. coli, S. Typhimurium, S. aureus and L. monocytogenes on stainless steel, polyvinyl chloride and glass slide coupons were effectively reduced by approximately 4 log CFU/coupon. These results demonstrate that lactic acid bacteria can be used as an alternative to effectively control the formation of biofilms by food-borne pathogens.  相似文献   

12.
This article extends the ongoing argumentation of ‘public’, publics and universities by providing a conceptual discussion of issues at the core of the public sphere: how does public form and exist amid private and individual life and pursuits, and how does a collective public body identify itself. The discussion is placed in dialogue with two earlier contributions to ‘becoming (a) public’ by Simons and Masschelein (European Educational Research Journal, 8(2), 204–217, 2009) and Biesta (Social & Cultural Geography, 13(7), 683–697, 2012). Brought together, these contributions constitute a definition of a programmatic public pedagogy at the university. This article develops the definition of a programmatic public pedagogy by drawing on the conceptual core meanings of public in continental antiquity, Enlightenment and American pragmatism. The author discusses public as (1) indefinitely circulating discourses, (2) sociability between strangers, (3) macro structures and (4) the political public sphere. The article reveals that the ‘becoming (a) public’ extends and occurs across a broad spectrum, and that the discursive and sociable manifestations of public are not secondary to explicitly political action but have an inherent value in themselves. The article distinguishes the character of public as constant openness to the emergence of what is yet not known from interpretations that locate public in the existing structures, ideologies and forms of action. The dialogue with Simons and Masschelein and Biesta shows that this distinction has critical implications on how programmatic public pedagogy is understood at the university.  相似文献   

13.
To report a rare case of fungal spondylodiscitis in a patient recovered from H7N9 virus infection and perform a literature review of the different characteristics of Candida and Aspergillus spondylodiscitis, we reviewed cases of spondylodiscitis caused by Candida and Aspergillus species. Data, including patients’ information, pathogenic species, treatment strategy, outcomes, and relapses, were collected and summarized. The characteristics of Candida and Aspergillus spondylodiscitis were compared to see if any differences in clinical features, management, or consequences could be detected. The subject of the case study was first misdiagnosed as having a vertebral tumor, and then, following open biopsy, was diagnosed as having fungal spondylodiscitis. The patient made a good recovery following radical debridement. Seventy-seven additional cases of Candida spondylodiscitis and 94 cases of Aspergillus spondylodiscitis were identified in the literature. Patients with Candida spondylodiscitis tended to have a better outcome than patients with Aspergillus spondylodiscitis (cure rate 92.3% vs. 70.2%). Candida was found more frequently (47.8%) than Aspergillus (26.7%) in blood cultures, while neurological deficits were observed more often in patients with Aspergillus spondylodiscitis (43.6% vs. 25.6%). Candida spinal infections were more often treated by radical debridement (60.5% vs. 39.6%). Patients with Candida spondylodiscitis have better outcomes, which may be associated with prompt recognition, radical surgical debridement, and azoles therapy. A good outcome can be expected in fungal spondylodiscitis with appropriate operations and anti-fungal drugs.  相似文献   

14.
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15.
This article explores posthumanism as a philosophy that emphasizes human relationships with the natural world by examining representations of animality, both in children’s literature (e.g. titles such as Where the Wild Things Are, Wild, Virginia Wolf, and No Fits, Nilson!) and in children’s play in order to better understand the significance of philosophy in children’s literature and lives. By fostering a feeling of “necessary wilderness,” or connection to nature (Almond, 2011, p. 110), and by practicing a sense of being in nature, “keeping some wildness always alive” (Lerman, 2012, p. 311) through literary engagement and animal play, the authors suggest that children and adults can maintain an interconnectedness with the natural world, even when they cannot be in it themselves. Through a mixed methods approach that combines educational theory, ecocriticism, and qualitative research, we discuss links between children’s stories and bodies, identifying how becoming animals through narrative engagement and play reflects posthumanist theory in practice, and encourages a child’s embodied knowledge of nature. The authors also speak to the ways that embodied education approaches that encourage animal play and “expressive literary engagement” [Sipe, 2002, pp. 476–483]) can support a shifting and necessary worldview informed by posthumanism, suggesting that philosophical change is necessary if humanity aims to survive the ecological and technological changes to come.  相似文献   

16.
Although children’s literature has long alluded to cultural connections between Africans and African Americans, very few texts establish clear lines of influence between particular African ethnic groups and African American characters and communities. Joyce Hansen’s The Captive (1994) and Sharon Draper’s Copper Sun (2006) stand out in portraying protagonists Kofi’s and Amari’s reliance on their past upbringing as Ashanti and Ewe, respectively. As Kofi and Amari endure the traumas of the Middle Passage and slavery in eighteenth-century America, they adapt by relying on their past socialization in traditional West African societies. The two novels challenge the idea of cultural erasure promoted in Elizabeth Yates’ Amos Fortune, Free Man (1950), which is still a fixture on multicultural reading lists for middle school students. The Captive and Copper Sun do provide sharply contrasting visions of their protagonist’s relationships to American society. Copper Sun indicates that a black girl’s concerns, including her need for subsistence and protection, and her desire for creative expression and personal autonomy, can complement the economic and military interests of the state. By contrast, The Captive insists on the necessity for its emancipated protagonist to maintain an adversarial role within a stratified, white-dominated U.S. culture. The novels thus highlight the very different messages about social identity and participation that recent multicultural children’s literature can convey.  相似文献   

17.
This article explores the changing character and consequences of state authorities’ evolving relationships with universities in the United States, Germany, and Norway—typical cases for different national worlds of higher education. It argues that across the three OECD countries, welfare states have strengthened market principles in university governance, yet shaped competition in different ways. This conceptualization of institutional changes makes two seemingly conflicting perspectives compatible: one diagnosing national convergence on academic capitalism and one arguing for lasting divergence across national political economic regimes. Upon proposing ideal-typical trajectories of market-making institutional liberalization, the article explores path-dependent movement toward varieties of academic capitalism in the three countries. The findings on the socio-economic effects of this transformation suggest the need to moderate expectations on the ability of reformed higher education systems to contain contemporary societies’ centrifugal forces.  相似文献   

18.
This empirically driven paper is about workplace learning with specific focus on the ‘work’ of consuming practices. By consuming we refer to the eating, and the drinking, and (at times) to the smoking that workers, in most organisations, do on a daily basis. Indeed, it is the quotidian nature of consuming, coupled with its absence from workplace learning research that make them noteworthy practices to explore. In using the term practice we draw on the recent tranche of practice based theorisations: notably Schatzki (1996, Organization Studies, 26(3), 465-484, 2005, Organization Studies, 27(12), 1863-1873, 2006) and Gherardi (Human Relations, 54(1), 131-139, 2001, 2006, Learning Organization, 16(5), 352-359, 2009). The paper frames consuming practices as ‘dispersed’ (general) practices and, illustrated through empirical data from multiple projects, we progressively outline how these contribute to the learning of ‘integrative’ (specialized work) practices. Our overall aim is to (re)position consuming practices from prosaic, to having much relevance for research on workplace learning.  相似文献   

19.
This article examines the place occupied by maps in children’s picturebooks. After a brief overview of the different roles that are assigned to maps in children’s books, the article considers five French picturebooks—Warja Lavater’s Le petit chaperon rouge (1965), Olivier Douzou and Isabelle Simon’s L’autobus numéro 33 (1996), Véronique Vernette’s Cocorico poulet Piga (1999), Rebecca Dautremer and Arthur Leboeuf’s Le loup de la 135 ème (2008) and Kochka and Fabienne Cinquin’s Dans ma ville, il y a… (2011)—in order to focus on how the narrative, whether enclosed, superimposed or linked to the text in some other way, is evoked by the geographic shape of the maps. It is argued that the particular use and function of a map depends on its shape or placement in a book, distinguishing between the incorporation of maps only as a significant picture (its use) from the subject within the whole narrative (its function). Thus the article articulates what uses a map can have within a narrative. It also explores the mechanics of the iconotext, showing that a cartographic picture fulfils a precise, rather than a general, function of spatialisation. Hence three main functions of spatialisation in maps and mapping are distinguished, whereby an author could use maps to help a character discover, conquer, or organise a space.  相似文献   

20.
In the face of the worldwide ecological crisis, ecocriticism, “the study of the relationship between literature and the physical environment” as “an earth-centered approach to literary studies” has become an important part of contemporary literary theory (Glotfelty in The Ecocriticism Reader: Landmarks in Literary Ecology, 1996, p. xviii). Since many traditional Native American lifestyles were based on ecological or ecocentric thinking—the need to live in harmony with the natural world—scholars have turned to the Native American literature that shares this ecocentric focus, which includes writing by Chickasaw poet Linda Hogan, Acoma Pueblo poet Simon Ortiz, and Laguna Pueblo novelist Paula Gunn Allen, among others. Native American children’s literature has been less examined. Even the acclaimed poet and novelist Louise Erdrich, one of the best-known authors of the second wave of the Native American Renaissance, has received less academic attention for her children’s books. This article aims to explore ecocentrism in Erdrich’s award-winning children’s book Chickadee (2012), the fourth book in her Birchbark House series, consulting discourses on ecocentrism and anthropocentrism, the importance of children’s literature in education, as well as the significance of animals and shamanism in Chickadee, placing the book within the context of traditional Native American culture.  相似文献   

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