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1.
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   

2.
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   

3.
Science vocabulary knowledge plays a role in understanding science concepts, and science knowledge is measured in part by correct use of science vocabulary (Lee et al. in J Res Sci Teach 32(8):797–816, 1995). Elementary school students have growing vocabularies and many are learning English as a secondary language or depend on schools to learn academic English. Teachers must have a clear understanding of science vocabulary in order to communicate and evaluate these understandings with students. The present study measured preservice teachers’ vocabulary knowledge during a science methods course and documented their use of science vocabulary during peer teaching. The data indicate that the course positively impacted the preservice teachers’ knowledge of select elementary science vocabulary; however, use of science terms was inconsistent in microteaching lessons. Recommendations include providing multiple vocabulary instruction strategies in teacher preparation.  相似文献   

4.
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   

5.
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   

6.
Numerous empirical studies have provided evidence of the effectiveness of an explicit and reflective approach to the learning of issues associated with the nature of science (NOS) (c.f. Abd-El-Khalick and Lederman in J Res Sci Teach 37(10):1057–1095, 2000). This essay reports the results of a mixed-methods association study involving 130 preservice teachers during the course of a three class unit based upon the history of science using such an approach. Within the unit the phenomenon of industrial melanism was presented as a puzzle for students to solve. Students were explicitly asked to reflect upon several NOS issues as they developed and tested their own explanations for the “mystery phenomenon”. NOS views of all participants were characterized by means of surveys and follow-up interviews with a subsample of 17 participants, using a modified version of the VNOS protocol (c.f. Lederman et al. in J Res Sci Teach 39(6):497–521, 2002). An analysis of the survey results informed by the interview data suggests NOS views became more sophisticated for some issues, e.g., whether scientific knowledge requires experimentation; but not others, e.g., why scientists experiment. An examination of the interview data informed by our experiences with the unit provides insight into why the unit may have been more effective with regard to some issues than others. This includes evidence that greater sophistication of some NOS issues was fostered by the use of multiple, contextualized examples. The essay concludes with a discussion of limitations, pedagogical implications, and avenues for further research.  相似文献   

7.
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   

8.
Through a critical cultural assets model, the authors use the methodological practices of collaboration, community site visits, document analysis, and interviews with cultural insiders to explore schools’ continued rejection of academic belonging for people from “othered” communities. They explore the case of Samoan youth—a marginalized cultural group—to contest the shared belief that school-based citizenry is an educational impossibility. Interview data with Samoan elders is analyzed using Consensual Qualitative Research methods (Hill et al. in Couns Psychol 24(4):517–572, 1997). They present themes of cultural capacities and academic disconnection to imagine a school context for the integration of cultural assets for “othered” youth (Kliewer and Biklen in Teach Coll Rec 109(12):2579–2600, 2007; Kliewer et al. American Educ Res Assoc J 3(2):163–192, 2006).  相似文献   

9.
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   

10.
This critical case study of one, Somali Bantu male high school student illuminates the struggle for recently arrived refugees at the high school level. Few educational research studies describe how recently arrived refugee students and their families make their transition to US schools (Ngo et al. in Hmong Stud J 8:1?C35, 2007; Hones and Cha in Educating new Americans: immigrant lives and learning. Erlbaum, Mahwah, 1999; Igoa in The inner world of the immigrant child. Erlbaum, Mahwah, 1995). Studies that examine how race, county of origin, and low socio-economic status affect refugee students also are few in number. Specifically Kamya (Soc Work 42:154?C165, 1997) argues that there is a compelling need for research that investigates how racism and stereotypes of Black Americans affect the experiences of African black immigrants and refugees. Rong and Brown (Educ Urban Soc 2:247?C273, 2002) add that black newcomers students often face a triple disadvantage of being black, having limited access to educational opportunity, and being poor. These challenges are particularly relevant for high school students as they have a limited amount of time to acquire proficiency in English and content area knowledge before transitioning to post-secondary education or the work force. In order to better understand how some of these processes work for a recently arrived refugee student in an urban school district, this paper examines the educational adaptation and coping strategies of one Somali Bantu male high school student and his family to the US public school system during the 2007?C2008 school year through the lens of intersectionality.  相似文献   

11.
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12.
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   

13.
The need to reform science teacher preparation programs has been pointed out in research (Bryan and Abell in J Res Sci Teach 36:121–140, 1999; Bryan and Atwater in Sci Educ 8(6):821–839, 2002; Harrington and Hathaway in J Teach Educ 46(4):275–284, 1995). Science teachers are charged with the responsibility of incorporating both cognitive and non-cognitive parameters in their everyday teaching practices. This often results in their reluctance to teach science because they often lack disciplinary and/or pedagogical expertise required to promote science learning. The purpose of this study is to propose an alternative instructional approach in which Lego vehicles were used as a tool to promote pre-service elementary teachers’ development and to examine whether there are non-cognitive parameters that promote or obstruct them from using Lego Technologies as a teaching tool. The context of the study was defined by a teacher preparation program of a private university in a small Mediterranean country. A sample of 28 pre-service elementary teachers, working in five 5–6-member groups were involved in scientific inquiries, during which they had to use vehicles in order to solve scientific problems related to concepts such as gear functioning, force, and motion. The nature of their cognitive engagement in the scientific inquiry process, non-cognitive parameters contributing to their cognitive engagement, and the impact of their involvement in the process on their development were examined through qualitative analysis of pre- and post-inquiry interviews, presentations of their solutions to the scientific problems and of their personal reflective journals.  相似文献   

14.
Modern education is often characterized by a tension between learning and creativity (Connery et al. in Vygotsky and creativity: A cultural-historical approach to play, meaning making, and the arts, 2010). ??The Arts????if attended to at all??is often positioned as a distinct element of the broader curriculum, and separate from teaching and learning within other curricular domains. Yet, despite being largely neglected within contemporary social constructivist literature, Vygotsky??s sociocultural theory of mind (Vygotsky in Mind in society, 1978; Vygotsky in The collected works of L. S. Vygotsky (Vol. 1: Problems of general psychology, 1987)) has as its core a fundamental concern for creativity, affect, and emotion as the basis for human development. This paper argues that Vygotsky??s understanding of catharsis??in particular, the transformative potential of emotion??gives cause to rethink the qualitative nature of pedagogy, and especially the importance of ??mundane creativity?? (Holzman in Vygotsky and creativity: A cultural-historical approach to play, meaning making, and the arts, 2010, p. 27) at the core of teaching and learning. This, in turn, opens up new possibilities for conceiving of how creativity might be understood and realized within and across different dimensions of the curriculum more broadly. For an empirical example to explore these constructs, the paper considers data from a ??content and language integrated learning?? (CLIL) context. Emerging in the mid-1990s as a European response to the success of the Canadian French immersion method for teaching languages (Johnson and Swain in Immersion education: International perspectives, 1997), CLIL sets out several guiding principles for integrating second language (L2) with content to develop both simultaneously. With a focus on how Japanese mediates a unit of work on Geography, the study highlights how the integrated language/content focus affords a space for creative pedagogical engagement in terms of learners making their own creative choices on what language to use, and how it could be used, to facilitate the learning of both language and content (Bachman and Palmer in Language assessment in practice: Developing language assessments and justifying their use in the real world, 2010; Mahn and John-Steiner in The gift of confidence: A Vygotskian view of emotions, 2002).  相似文献   

15.
As teacher educators, we are tasked with preparing prospective teachers to enter a field that has undergone significant changes in student population and policy since we were K-12 teachers. With the emphasis placed on connections, mathematics integration, and communication by the New Generation Science Standards (NGSS) (Achieve in Next generation science standards, 2012), more research is needed on how teachers can accomplish this integration (Bunch in Rev Res Educ 37:298–341, 2013; Lee et al. in Educ Res 42(4):223–233, 2013). Science teacher educators, in response to the NGSS, recognize that it is necessary for pre-service and in-service teachers to know more about how instructional strategies in language and science can complement one another. Our purpose in this study was to explore a model of integration that can be used in classrooms. To do this, we examined the change in science content knowledge and academic vocabulary for English language learners (ELLs) as they engaged in inquiry-based science experience utilizing the 5R Instructional Model. Two units, erosion and wind turbines, were developed using the 5R Instructional Model and taught during two different years in a summer school program for ELLs. We analyzed data from interviews to assess change in conceptual understanding and science academic vocabulary over the 60 h of instruction. The statistics show a clear trend of growth supporting our claim that ELLs did construct more sophisticated understanding of the topics and use more language to communicate their knowledge. As science teacher educators seek ways to prepare elementary teachers to help preK-12 students to learn science and develop the language of science, the 5R Instructional Model is one pathway.  相似文献   

16.
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   

17.
Innovative professionals rely on a specific ways of thinking to solve the nonstandard problems that come up in practice (Goodwin, Am Anthropol 96(3):606–633, 1994; Schön, The reflective practitioner: how professionals think in action, 1983; Educating the reflective practitioner: toward a new design for teaching and learning in the professions, 1987; Sullivan, Work and integrity: the crisis and promise of professionalism in America, 1995). The professions have reproductive practices for transmitting these ways of thinking, such as practica (Schön, Educating the reflective practitioner: toward a new design for teaching and learning in the professions, 1987). In this paper, we examine the learning relationship between a mentor and team of college students through an ethnographic study of a game design practicum at a European arts school. To examine the role that the mentor played in this practicum, we use two theoretical constructs. Epistemic frames—the configurations of the skills, knowledge, identities, values, and epistemologies that professionals use to think in innovative ways—provide a model for examining professional expertise (Shaffer, Comput Educ, 46(3):223–234, 2006a). Epistemic network analysis (ENA) (Shaffer et al., Int J Learn Media, 1(2):33–53, 2009) is a method for quantifying changes in epistemic frames (Shaffer, The bicycle helmets of “Amsterdam”: computer games and the problem of transfer, 2010). Our results here suggest that the mentor leads the team on a path that illuminates the nature of learning to think professionally, as well the function of a mentor in that process. We argue that the mentor, rather than providing a direct map to a professional vantage point, scaffolds aspects of the epistemic frame of game design that, in turn, aid in the development of a more professional frame. Using ENA to understand the way that mentors help coach learners to develop epistemic frames should be useful for further studies of professional education, as well as for studies of apprenticeship-based programs for youth.  相似文献   

18.
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   

19.
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   

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