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1.
Emma Tobin 《Science & Education》2013,22(7):1581-1592
This paper examines the notion of laws in chemistry. Vihalemm (Found Chem 5(1):7–22, 2003) argues that the laws of chemistry are fundamentally the same as the laws of physics they are all ceteris paribus laws which are true “in ideal conditions”. In contrast, Scerri (2000) contends that the laws of chemistry are fundamentally different to the laws of physics, because they involve approximations. Christie (Stud Hist Philos Sci 25:613–629, 1994) and Christie and Christie (Of minds and molecules. Oxford University Press, New York, pp. 34–50, 2000) agree that the laws of chemistry are operationally different to the laws of physics, but claim that the distinction between exact and approximate laws is too simplistic to taxonomise them. Approximations in chemistry involve diverse kinds of activity and often what counts as a scientific law in chemistry is dictated by the context of its use in scientific practice. This paper addresses the question of what makes chemical laws distinctive independently of the separate question as to how they are related to the laws of physics. From an analysis of some candidate ceteris paribus laws in chemistry, this paper argues that there are two distinct kinds of ceteris paribus laws in chemistry; idealized and approximate chemical laws. Thus, while Christie (Stud Hist Philos Sci 25:613–629, 1994) and Christie and Christie (Of minds and molecules. Oxford University Press, New York, pp. 34--50, 2000) are correct to point out that the candidate generalisations in chemistry are diverse and heterogeneous, a distinction between idealizations and approximations can nevertheless be used to successfully taxonomise them. 相似文献
2.
The Threshold Capability Integrated Theoretical Framework (TCITF) is presented as a framework for the design of university curricula, aimed at developing graduates’ capability to deal with previously unseen situations in their professional, social, and personal lives. The TCITF is a new theoretical framework derived from, and heavily dependent upon, the ideas of the Threshold Concepts Framework (Meyer and Land 2003a; Land et al. 2006) and Capability Theory (Bowden and Marton 1998; Bowden et al. 2000; Bowden 2004). Capability theory is firmly based in phenomenography and variation theory, is concerned with the development of knowledge capability, but has had limited application in practice. The threshold concepts framework has enjoyed greater acceptance by a large range of academics in many fields. This acceptance has initially focussed on analytic studies of what constitutes a threshold concept—and the location and distribution of such concepts—in a given domain. In many instances subsequent attention has focussed on issues of pedagogy and assessment, including the design of curricula. We propose a merging of capability theory and the threshold concepts framework and argue that capability and variation theories provide the ideal mechanism for developing a strong pedagogical approach based on newly emerging knowledge of the critical features of threshold concepts within different domains. 相似文献
3.
Rebecca Lynn Tadlock-Marlo Brett Zyromski Kimberly K. Asner-Self Yanyan Sheng 《International journal for the advancement of counseling》2013,35(3):234-250
Multicultural counseling competencies (MCCs) have typically been measured with instruments designed for and normed on mental health professionals – for example, MCCTS-R; Holcomb-McCoy (Professional School Counseling 4:195–208, 2001); MCI; Sodowsky et al. (Journal of Counseling and Development 41:137–148, 1994); D’Andrea et al. (Journal of Counseling & Development 70:143–150, 1991). One published instrument specifically assesses school counselor MCCs – MCCTS-R; Holcomb-McCoy (Professional School Counseling 4:195–208, 2001) – but it does not conform to ASCA standards (2010, E.2). Following a set of validation procedures, an instrument designed to specifically assess school counselors’ multicultural counseling competencies was created that conforms to American School Counselor Association and Association for Multicultural Counseling and Development standards. Its creation is detailed here and the resulting instrument is presented for examination and consideration. 相似文献
4.
This paper reports on a teacher’s and his students’ responsiveness to a new tetrahedral-oriented (Mahaffy in J Chem Educ 83(1):49–55, 2006) curriculum requiring more discursive classroom practices in the teaching of chemistry. In this instrumental case study, we identify the intentions of this learner-centered curriculum and a teacher’s development in response to this curriculum. We also explore the tensions this teacher experiences as students subsequently respond to his adjusted teaching. We use a Chemistry Teacher Inventory (Lewthwaite and Wiebe in Res Sci Educ 40(11):667-689, 2011; Lewthwaite and Wiebe in Can J Math Sci Technol Educ 12(1):36–61, 2012; Lewthwaite in Chem Educ Res Pract. doi:10.1039/C3RP00122A, 2014) to assist the teacher in monitoring how he teaches and how he would like to improve his teaching. We also use a student form of the instrument, the Chemistry Classroom Inventory and Classroom Observation Protocol (Lewthwaite and Wiebe 2011) to verify the teacher’s teaching and perception of student preferences for his teaching especially in terms of the discursive processes the curriculum encourages. By so doing, the teacher is able to use both sets of data as a foundation for critical reflection and work towards resolution of the incongruence in data arising from students’ preferred learning orientations and his teaching aspirations. Implications of this study in regards to the authority of students’ voice in triggering teachers’ pedagogical change and the adjustments in ‘teachering’ and ‘studenting’ required by such curricula are considered. 相似文献
5.
Cheryl Jakab 《Research in Science Education》2013,43(4):1307-1325
This paper reports on 6–11-year-old children’s ‘sayings and doings’ (Harré 2002) as they explore molecule artefacts in dialectical-interactive teaching interviews (Fleer, Cultural Studies of Science Education 3:781–786, 2008; Hedegaard et al. 2008). This sociocultural study was designed to explore children’s everyday awareness of and meaning-making with cultural molecular artefacts. Our everyday world is populated with an ever increasing range of molecular or nanoworld words, symbols, images, and games. What do children today say about these artefacts that are used to represent molecular world entities? What are the material and social resources that can influence a child’s everyday and developing scientific ideas about ‘molecules’? How do children interact with these cognitive tools when given expert assistance? What meaning-making is afforded when children are socially and materially assisted in using molecular tools in early chemical and nanoworld thinking? Tool-dependent discursive studies show that provision of cultural artefacts can assist and direct developmental thinking across many domains of science (Schoultz et al., Human Development 44:103–118, 2001; Siegal 2008). Young children’s use of molecular artefacts as cognitive tools has not received much attention to date (Jakab 2009a, b). This study shows 6–11-year-old children expressing everyday ideas of molecular artefacts and raising their own questions about the artefacts. They are seen beginning to domesticate (Erneling 2010) the words, symbols, and images to their own purposes when given the opportunity to interact with such artefacts in supported activity. Discursive analysis supports the notion that using ‘molecules’ as cultural tools can help young children to begin ‘putting on molecular spectacles’ (Kind 2004). Playing with an interactive game (ICT) is shown to be particularly helpful in assisting children’s early meaning-making with representations of molecules, atoms, and their chemical symbols. 相似文献
6.
Caroline E. Jones 《Children‘s Literature in Education》2012,43(3):223-241
This article explores four adolescent novels published between 1999 and 2010 specifically for the intersections of Christian faith and lesbian and gay sexual identities. Using cultural, queer, and ideological theories, the piece makes distinctions between progressive and traditional depictions of both Christianity and LGBTQ teen protagonists in Nancy Garden’s The Year They Burned the Books (1999), Laura Torres’s November Ever After (1999), Alex Sanchez’s The God Box (2007), and Mark Hardy’s Nothing Pink (2008). 相似文献
7.
Agnotology is a term that has been used to describe the study of ignorance and its cultural production (Proctor in Agnotology: the making and unmaking of ignorance. Stanford University Press, Stanford, 2008). For issues that are contentious in the societal realm, though largely not in the scientific realm, such as human evolution or the broad basics of human-induced climate change, it has been suggested that explicit study of relevant misinformation might be a useful teaching approach (Bedford in J Geogr 109(4):159–165, 2010). Recently, Legates et al. (Sci Educ. doi:10.1007/s11191-013-9588-3, 2013) published an aggressive critique of Bedford’s (J Geogr 109(4):159–165, 2010) proposals. However, the critique is based on a comprehensive misinterpretation of Bedford’s (J Geogr 109(4):159–165, 2010) paper. Consequently, Legates et al. (Sci Educ. doi:10.1007/s11191-013-9588-3, 2013) address arguments not actually made by Bedford (J Geogr 109(4):159–165, 2010). This article is a response to Legates et al. (Sci Educ. doi:10.1007/s11191-013-9588-3, 2013), and demonstrates their errors of interpretation of Bedford (J Geogr 109(4):159–165, 2010) in several key areas: the scientific consensus on climate change; misinformation and the public perception of the scientific consensus on climate change; and agnotology as a teaching tool. We conclude by arguing that, although no single peer-reviewed publication on climate change, or any other scientific issue, should be accepted without due scrutiny, the existence of a scientific consensus—especially one as overwhelming as exists for human-induced climate change—raises the level of confidence that the overall findings of that consensus are correct. 相似文献
8.
Because trucks aren’t bicycles: orthographic complexity as an important variable in reading research
Severe enduring reading- and writing-accuracy difficulties seem a phenomenon largely restricted to nations using complex orthographies, notably Anglophone nations, given English’s highly complex orthography (Geva and Siegel, Read Writ 12:1–30, 2000; Landerl et al., Cognition 63:315–334, 1997; Share, Psychol Bull 134(4):584–615, 2008; Torgesen and Davis, J Exp Child Psychol 63:1–21, 1996; Vellutino, J Learn Disabil 33(3):223, 2000). They seem rare in transparent orthography nations such as Finland, which use highly regular spelling and few spelling rules beyond letter sounds, and most children read and write with impressive accuracy by the end of Year 1 (Holopainen et al., J Learn Disabil 34(5):401–413, 2001; Seymour et al., Br J Psychol 94:143–174, 2003; Spencer and Hanley, Br J Psychol 94(1):1–29, 2003; J Res Read 27(1):1–14, 2004). Orthographic complexity has strong and diverse impacts on reading, writing and academic development (Aro, Learning to read: The effect of orthography, 2004; Galletly and Knight, Aust J Learn Disabil 9(4):4–11, 2004; Aust Educ Res 38(3):329–354, 2011). Despite these strong effects, orthographic complexity is rarely included as a variable in reading research studies considering evidence from both Anglophone (complex orthography) and transparent-orthography readers, or included in discussion of factors influencing results. This paper discusses the differences in reading-accuracy development and difficulties evidenced in studies of Anglophone (complex-orthography) and transparent-orthography readers. It then explores instances of orthographic complexity not being considered in studies where it may have impacted results. This disregarding of orthographic complexity as a variable in research studies appears an oversight, one likely to be contributing to continuing confusion on many aspects of reading and writing development in both healthy- and low-progress readers. Needs for research in these areas are discussed. 相似文献
9.
Societal benefit depends on the general public’s understandings of biotechnology (Betsch in World J Microbiol Biotechnol 12:439–443, 1996; Dawson and Cowan in Int J Sci Educ 25(1):57–69, 2003; Schiller in Business Review: Federal Reserve Bank of Philadelphia (Fourth Quarter), 2002; Smith and Emmeluth in Am Biol Teach 64(2):93–99, 2002). A National Science Foundation funded survey of high school biology teachers reported that hands-on biotechnology education exists in advanced high school biology in the United States, but is non-existent in mainstream biology coursework (Micklos et al. in Biotechnology labs in American high schools, 1998). The majority of pre-service teacher content preparation courses do not teach students appropriate content knowledge through the process of inquiry. A broad continuum exists when discussing inquiry-oriented student investigations (Hanegan et al. in School Sci Math J 109(2):110–134, 2009). Depending on the amount of structure in teacher lessons, inquiries can often be categorized as guided or open. The lesson can be further categorized as simple or authentic (Chinn and Malhotra in Sci Educ 86(2):175–218, 2002). Although authentic inquiries provide the best opportunities for cognitive development and scientific reasoning, guided and simple inquiries are more often employed in the classroom (Crawford in J Res Sci Teach 37(9):916–937, 2000; NRC in Inquiry and the national science education standards: a guide for teaching and learning, 2000). For the purposes of this study we defined inquiry as “authentic” if original research problems were resolved (Hanegan et al. in School Sci Math J 109(2):110–134, 2009; Chinn and Malhotra in Sci Educ 86(2):175–218, 2002; Roth in Authentic school science: knowing and learning in open-inquiry science laboratories, 1995). The research question to guide this study through naturalistic inquiry research methods was: How will participants express whether or not an authentic inquiry experience enhanced their understanding of biotechnology? As respondents explored numerous ideas in order to develop a workable research question, struggled to create a viable protocol, executed their experiment, and then evaluated their results, they commented on unexpected topics regarding the nature of science as well as specific content knowledge relating to their experiments. Four out of five participants reported they learned the most during authentic inquiry laboratory experience. 相似文献
10.
Pooja K. Agarwal Patrice M. Bain Roger W. Chamberlain 《Educational Psychology Review》2012,24(3):437-448
Over the course of a 5-year applied research project with more than 1,400 middle school students, evidence from a number of studies revealed that retrieval practice in authentic classroom settings improves long-term learning (Agarwal et al. 2009; McDaniel et al., Journal of Educational Psychology 103:399–414, 2011; McDaniel et al. 2012; Roediger et al., Journal of Experimental Psychology: Applied 17:382–395, 2011a). Retrieval practice, or the use of quizzes and exams to engage and enhance retrieval processes, has been widely established as an effective strategy for facilitating learning in laboratory settings (e.g., Roediger et al. 2011c). In this article, we review recent findings from applied research that demonstrate that retrieval practice enhances long-term classroom learning, delayed quizzes are particularly potent for retention, quizzes benefit students’ transfer to novel quiz items, and quizzes with feedback improve students’ learning and metacognitive awareness. In addition to generating evidence to support retrieval-based learning, these applied research studies also enhanced the professional development of the teachers, administrators, and scientists involved in the project. In this article, it is our hope that by sharing what we have learned from a variety of perspectives, applied scientific research in K-12 classrooms will continue to be explored and generated at local, state, and national levels, improving student learning and educational decision-making. 相似文献
11.
Elizabeth Yohlin 《Children‘s Literature in Education》2012,43(3):260-272
Children’s picture books that recreate, parody, or fictionalize famous artworks and introduce the art museum experience, a genre to which I will refer as “children’s art books,” have become increasingly popular over the past decade. This essay explores the pedagogical implications of this trend through the family program “Picture Books and Picture Looks” conducted at the Art Institute of Chicago. Program sessions were observed to learn the extent to which picture books featuring the painting A Sunday on La Grande Jatte—1884 (Seurat) informed and impacted children’s experiences with the original artwork. The books Katie’s Sunday Afternoon (Mayhew, 2005), Babar’s Museum of Art (De Brunhoff, 2003), and Willy’s Pictures (Browne, 2000) provided the foundation for the program. In addition to these three books, The Dot (Reynolds, 2003), which does not include a reference to La Grande Jatte (Seurat, 1884–1886), acted as a “control” variable. This research demonstrates that while most picture books can be used to establish a level of comfort in an environment that is new to children, those that directly referenced the painting provided a base level of knowledge from which children could confidently draw upon encountering the original work. The research further indicated that, when used in conjunction with original artworks, children’s art books provide unique and distinct entry points for talking about art. The inclusion of artwork in children’s picture books elicits an enthusiasm and recognition that enhances the museum experience, and such books can be effective tools for enabling reflective, imaginative experiences with art. 相似文献
12.
13.
Expatriate parents and supplementary education in Japan: survival strategy or acculturation strategy
Melodie Cook 《Asia Pacific Education Review》2013,14(3):403-417
The increase in the use of supplementary education, or juku, in Japan by Japanese families in order to augment their children’s chances of success in entering prestigious pre-tertiary and tertiary institutions is documented (Blumenthal in Asian Surv 32(5):448–460, 1992; Bray and Lykins in Shadow education; private supplementary tutoring and its implications for policy makers in Asia, Asian Development Bank, Philippines, 2012; Dierkes in The Focus: Supplementary education in Asia, International Institute of Asian Studies, Leiden, The Netherlands, 2011; Roesgaard in Japanese education and the cram school business; Functions, challenges and perspectives of the juku, Nordic Institution of Asian Studies, Copenhagen, 2006; Rohlen in J Jpn Stud 6(2):207–242, 1980; Tsukada in Comp Educ, 24(3):285–303, 1988), but there is little known about the use of supplementary education by an ever-growing number of families in Japan in which one or both parents are an expatriate. This exploratory countrywide study of such families hopes to address this lack of research. Initial results show that while a number of factors related to their own culture and values about childhood, education, and family life influence some families’ decision not to send their children to juku, most families tend to use these services for many of the same reasons as their Japanese counterparts, although to a different degree. In addition, they seem to use these services because they are counseled to do so by insiders, or because supplementary education provides other services which help them to navigate the Japanese educational system. Expatriate families’ use of supplementary education could be one of many acculturation strategies they use as they adapt to Japan’s educational culture. 相似文献
14.
Timothy Patrick Fukawa-Connelly Charlene Newton 《Educational Studies in Mathematics》2014,87(3):323-349
Examples are believed to be very important in developing conceptual understanding of mathematical ideas, useful both in mathematics research and instruction (Bills & Watson in Educational Studies in Mathematics 69:77–79, 2008; Mason & Watson, 2008; Bills & Tall, 1998; Tall & Vinner, 1981). In this study, we draw on the concept of an example space (Mason & Watson, 2008) and variation theory (Runesson in Scandinavian Journal of Educational Research 50:397–410, 2006) to create a lens to study how examples are used for pedagogical purposes in undergraduate proof-based instruction. We adapted the construct of an example space and extended its application to the constructs of example neighborhood, methods of example construction, and the functions of examples. We explained how to use our new lens to analyze the collection of examples and non-examples that the students had access to. We then demonstrate our method by analyzing the collection of examples and non-examples of a mathematical group the professor of an abstract algebra class presented during lectures or assigned to students in problem sets or exams. 相似文献
15.
This study explored the nature of the relationship between a fifth-grade teacher and an informal science educator as they planned and implemented a life science unit in the classroom, and sought to define this relationship in order to gain insight into the roles of each educator. In addition, student learning as a result of instruction was assessed. Prior research has predominately examined relationships and roles of groups of teachers and informal educators in the museum setting (Tal et al. in Sci Educ 89:920–935, 2005; Tal and Steiner in Can J Sci Math Technol Educ 6:25–46, 2006; Tran 2007). The current study utilized case study methodology to examine one relationship (between two educators) in more depth and in a different setting—an elementary classroom. The relationship was defined through a framework of cooperation, coordination, and collaboration (Buck 1998; Intriligator 1986, 1992) containing eight dimensions. Findings suggest a relationship of coordination, which requires moderate commitment, risk, negotiation, and involvement, and examined the roles that each educator played and how they negotiated these roles. Consistent with previous examinations in science education of educator roles, the informal educator’s role was to provide the students with expertise and resources not readily available to them. The roles played by the classroom teacher included classroom management, making connections to classroom activities and curricula, and clarifying concepts. Both educators’ perceptions suggested they were at ease with their roles and that they felt these roles were critical to the optimization of the short time frames (1 h) the informal educator was in the classroom. Pre and posttest tests demonstrated students learned as a result of the programs. 相似文献
16.
Carol A. Mullen Eugenie A. Samier Sue Brindley Fenwick W. English Nora K. Carr 《Interchange》2013,43(3):187-228
Neoliberalism is a loosely knit bricolage from economics, politics, and various forms of reactionary populism that can be envisioned as a kind of epistemic frame in which largely counterrevolutionary forces engage in the creative destruction of institutional frameworks and powers, forging divisions across society that include labor and social relations (Harvey, A brief history of neoliberalism, 2009). Such “creative destruction” implies that neoliberalism is actually a reactionary “catalog of mind” (Robin, The reactionary mind: Conservatism from Edmund Burke to Sarah Palin, 2011, p. 17); that when believers engage in reactions to programs and ideas which represent what Bourdieu (Acts of resistance: Against the tyranny of the market, 1998) called “the left hand of the state” (typically represented by teachers, judges, social workers), one result has been the “involution of the state” (p. 34) and the “destruction of the idea of public service” (Bourdieu, The abdication of the state. In P. Bourdieu (Ed.), The weight of the world: Social suffering in contemporary society, 1999, p. 182). We examine neoliberalism using Shaffer’s (Int J Learn Media 1(2):1–21, 2009) concept of an “epistemic frame” based on the epistemic frame hypothesis that suggests that a community of practice has a culture, and that the collection of values, skills, knowledge, and identity form the “epistemic frame” (p. 4). An epistemic frame has a kind of grammar and structure comprised of people’s thoughts and actions, reinforced by the ways that people see themselves, the values to which they hold, and the epistemology that binds together their agenda. The purpose of our analysis is to create a praxis for what has been termed Regressionsverbot, which is defined as “a ban on backward movement with respect to social gains at the European level” (Bourdieu, Acts of resistance: Against the tyranny of the market, 1998, p. 41). In the form of cases from the United States, the United Kingdom, and the United Arab Emirates, neoliberal initiatives are examined, unpacked, and interrogated. 相似文献
17.
Development of a Short-Form Measure of Science and Technology Self-efficacy Using Rasch Analysis 总被引：1，自引：1，他引：0
Richard L. Lamb David Vallett Leonard Annetta 《Journal of Science Education and Technology》2014,23(5):641-657
Despite an increased focus on science, technology, engineering, and mathematics (STEM) in U.S. schools, today’s students often struggle to maintain adequate performance in these fields compared with students in other countries (Cheek in Thinking constructively about science, technology, and society education. State University of New York, Albany, 1992; Enyedy and Goldberg 2004; Mandinach and Lewis 2006). In addition, despite considerable pressure to promote the placement of students into STEM career fields, U.S. placement is relatively low (Sadler et al. in Sci Educ 96(3):411–427, 2012; Subotnik et al. in Identifying and developing talent in science, technology, engineering, and mathematics (STEM): an agenda for research, policy and practice. International handbook, part XII, pp 1313–1326, 2009). One explanation for the decline of STEM career placement in the U.S. rests with low student affect concerning STEM concepts and related content, especially in terms of self-efficacy. Researchers define self-efficacy as the internal belief that a student can succeed in learning, and that understanding student success lies in students’ externalized actions or behaviors (Bandura in Psychol Rev 84(2):191–215, 1977). Evidence suggests that high self-efficacy in STEM can result in student selection of STEM in later educational endeavors, culminating in STEM career selection (Zeldin et al. in J Res Sci Teach 45(9):1036–1058, 2007). However, other factors such as proficiency play a role as well. The lack of appropriate measures of self-efficacy can greatly affect STEM career selection due to inadequate targeting of this affective trait and loss of opportunity for early intervention by educators. Lack of early intervention decreases selection of STEM courses and careers (Valla and Williams in J Women Minor Sci Eng 18(1), 2012; Lent et al. in J Couns Psychol 38(4), 1991). Therefore, this study developed a short-form measure of self-efficacy to help identify students in need of intervention. 相似文献
18.
Bettina L. Love 《The Urban Review》2014,46(2):292-306
The goal of this article is to examine the racially hostile environment of U.S. public schooling towards Black males. Drawing on the work of Foucault (Discipline and punish. The birth of the prison, Penguin Books, London, 1977; Michel Foucault: beyond structuralism and hermeneutics, The Harvester Press, Brighton, 1982) regarding the construction of society’s power relations and Bourdieu’s (Power and ideology in education, Oxford University Press, New York, 1977; Handbook of theory and research for the sociology of education. Greenwood Press, New York, 1986; The logic of practice. Polity Press, Cambridge, 1990) work concerning how beliefs are established, this article demonstrates how power operates within schools alongside racism, racial profiling, and gender stereotypes to criminalize Black males. Additionally, the utilization of the theoretical lenses of populational reasoning (Popkewitz in Struggling for the soul: the politics of schooling and the construction of the teacher, Teachers College Press, New York, 1998), conceptual narrative (Somers and Gibson in Social theory and the politics of identity, Blackwell, Cambridge, 1994), and critical race theory (Delgado and Stefancic 2001) links the common narrative and the cultural memory of Black males to the death of Trayvon Martin and the treatment of Black males in schools. 相似文献
19.
María del Carmen Sanjuán James Byron Nelson Gumersinda Alonso 《Learning & behavior》2014,42(3):209-214
Experiments 1A and 1B used a taste-aversion procedure with rats to demonstrate that exposure to easily discriminated flavors along a dimension (1 % and 10 % sucrose) can facilitate learning a subsequent hard discrimination (4 % and 7 % sucrose) when one of those flavors is paired with illness. Experiment 1A compared the effects of preexposure to the easily discriminated flavors against exposure to the same stimuli used in the discrimination training or no exposure at all. Experiment 1B replicated the conditions in Experiment 1A, with 2 additional days of training and unrestricted access to the flavors on CS+/CS– trials in discrimination training. Contrary to findings with multidimensional stimuli (Scahill & Mackintosh, Journal of Experimental Psychology: Animal Behavior Processes, 30, 96–103, 2004; Suret & McLaren, The Quarterly Journal of Experimental Psychology, 56B, 30–42, 2003), we found that preexposure to the easily discriminable stimuli varying along a single dimension of sweetness facilitated subsequent discrimination training over the other conditions in each experiment. We discuss the results in terms of the ideas presented by Gibson (1969) and Mackintosh (Psychological Review, 82, 276–298, 1975) and in terms of hedonic variables not considered by theories of perceptual learning. 相似文献
20.
While some researchers have argued for science classrooms that embrace open-inquiry by engaging students in doing science as scientists do (cf. National Research Council [NRC] 1996; Driver et al. in Sci Educ 84:287–312, 2000; Windschitl et al. in Sci Educ 87(1):112–143, 2008), others have argued that open-inquiry is impractical, ineffective, and perhaps even counter-productive towards promoting normative scientific ideas (cf. Kirschner et al. in Educ Psychol 41(2):75–86, 2006; Settlage in J Sci Teach Educ 18:461–467, 2007). One of the challenges in informing the debate on this issue is the scarcity of well-documented courses that engage students in open-inquiry characteristic of scientific research. This paper describes the design, implementation, and outcomes of such a course for undergraduates planning on becoming elementary teachers. The goal of the class was to immerse future teachers in authentic, open-inquiry (without specific learning goals related to scientific concepts) in hopes that students would come away with a deeper understanding of the nature of science (NOS) and improved attitudes towards science. Data collected from a variety of sources indicate that an authentic, open-inquiry experience is feasible to implement in an undergraduate setting, gives students a more sophisticated NOS understanding, improves students’ attitudes towards science and open-inquiry, and changes the way they intend to teach science in their future classrooms. 相似文献