Trends in research on project-based science and technology teaching and learning at K–12 levels: a systematic review     

Abdelkrim Hasni  Fatima Bousadra  Vincent Belletête  Ahmed Benabdallah  Marie-Claude Nicole  Nancy Dumais 《Studies in Science Education》2016,52(2):199-231

Project-based teaching is nothing new; it originates from the work of authors like Dewey and Kilpatrick. Recent decades have seen renewed interest in this approach. In many countries, it is currently considered to be an innovative approach to science and technology (S&;T) teaching. In this article, we present a systematic review of what recent scientific publications teach us about this approach: How is this approach identified in these publications? How is the use of this approach in school S&;T justified? What are the main research questions covered by studies in the field? What do these studies on this approach teach us? To answer these questions, we have selected and analysed articles published, between 2000 and 2014, in journals that are specialised in school science and technology education and that are indexed in ERIC database. In the synthesis based on this analysis, we present: (a) the theoretical constructs used by the authors to refer to this approach and the features identified to define it; (b) the justifications for this approach; (c) the research questions covered by studies in the field; (d) the data collection and analysis methods used in these studies; and (e) the main findings. In addition to presenting a synthesis of current research in this field, we offer a critical discussion thereof with a focus on two aspects, namely the way PBSTL is conceptualised and the rigour of the research methods used to ensure the validity of findings.  相似文献   

Explicit reasoning, creativity and co-construction in primary school children's collaborative activities     

Sylvia Rojas-Drummond  Nancy Mazn  Manuel Fernndez  Rupert Wegerif 《Thinking Skills and Creativity》2006,1(2):84-94

This paper describes research that explored the question of whether or not it is possible to characterise and teach a single type of educationally productive talk. We analysed and compared the quality of children's interactional strategies when jointly working on a reasoning task and a psycholinguistic task. The latter involved writing an integrated summary of three related texts. Sixth grade primary school children (11–12 years old) solved these two tasks as pre- and post-tests before and after training in the use of ‘Exploratory Talk’ (ET) to think together and argue as well as in strategies for producing summaries. After training, children improved substantially in the use of ET when solving the reasoning but not the psycholinguistic task. However, using ethnography of communication methods to analyse the talk further around the latter task revealed that both the number and quality of communicative events and acts increased importantly. These changes were accompanied by a significant improvement in the quality of the summaries produced. These findings suggest that the requirement for explicit reasoning in the definition and analysis of ET may be task dependent. To account for the common features of the educationally productive talk in the two settings, we propose the more inclusive concept of co-constructive talk to characterise the inter-subjective orientation, social ground rules and communicative actions that support effective collaboration, co-ordination and creativity.  相似文献   

Habituation to illness: Effects of prior experience with the US on the formation of learned taste aversions in rats     

Nancy Woodard Cain  Ronald Baenninger 《Learning & behavior》1977,5(4):359-364

Experiment 1 investigated the effects of US habituation on the acquisition and extinction of learned taste aversions in rats. Subjects receiving five noncontingent LiCl intubations prior to conditioning failed to develop a conditioned taste aversion, while control subjects experiencing a single saccharin/LiCl pairing displayed a pronounced taste aversion which weakened during subsequent poisonings. Experiment 2 examined whether habituation, defined as a waning of responses to repeated presentation of an illness stimulus, was a possible mechanism for explaining the results of Experiment 1. Subjects showed a decrease in motor activity following an initial LiCl intubation, but less attenuation of activity with successive intubations.  相似文献   

Social responsiveness and physical space as determinants of agonistic behavior inBetta splendens     

Nancy Woodard Cain  Cynthia Jessen  Michael Flanagan 《Learning & behavior》1980,8(3):497-501

Two experiments examined the conditions under whichBetta agonistic responding occurs by manipulating physical space and the species and social responsiveness of an opponent. In Experiment 1, both the species (conspecific or nonconspecific) and the aggressiveness (aggressive or nonaggressive) of the opponent were manipulated. The results indicated that agonistic behavior was greater with both conspecifics and aggressive opponents. Experiment 2 examined the effects of physical space and social responsiveness of the opponent on intraspecific aggressive behavior. An inverse relationship was found between physical space and the number of attacks directed toward the opponent. The results of both experiments also indicated thatBetta tend to attack aggressive opponents more than nonaggressive ones. It is suggested thatBetta aggress either when the individual animal is threatened or when physical space is limited.  相似文献   

“Social Work Is a Profession,Not an Ideology”: A Qualitative Analysis of Student Perceptions of Social Justice Discussions in the Classroom     

Candace Hansford  Gretchen E. Ely  Chris Flaherty  Nancy Meyer-Adams 《Journal of Teaching in Social Work》2017,37(3):199-217

The purpose of this article is to describe student perceptions of their experiences around social justice discussions in the social work classroom through a qualitative, grounded theory framework. Student responses from a qualitative section of a survey were analyzed and sorted into three categories: perceived discrimination, heightened self-awareness/self-assessment, and future social work practice. Each of these categories was derived from comparable multiple themes stemming from the student responses. A conceptual model resulting from the analysis suggests that students who shared experiences of perceived discrimination during classroom discussions could develop an enhanced self-awareness, which would result in an added empathy for clients in their future social work practice. Suggestions for teaching strategies and directions for future research are also discussed.  相似文献   

Evidence and Warrants for Belief in a College Astronomy Course     

Brickhouse  Nancy W.  Dagher  Zoubeida R.  Shipman  Harry L.  Letts  William J. 《Science & Education》2002,11(6):573-588

Science educators have argued that it is insufficient to be able to recite thetheories of science and not know how knowledge claims in science are justified, what counts as evidence, or how theory and evidence interact. We wonder, however, how much students' understandings of the nature of science vary with content. This paper draws on data collected in a university astronomy course. Data include three interviews and written work from twenty students, as well as written work from the 340 students in the class. This study provides us with evidence on how students' talk and writing about the nature of science differs depending on the particular scientific topic which is under discussion. The relationship between theory and evidence, warrants for belief, and nature of observation are described in various ways in the different disciplines discussed in the course.  相似文献   

Convergence of Numerical Sequences – a Commentary on “the Vice: Some Historically Inspired and Proof Generated Steps to Limits of Sequences” By R.P. Burn     

Analía Bergé 《Educational Studies in Mathematics》2006,61(3):395-402

  相似文献   

Development of the metalanguage and the acquisition of literacy: A progress report     

Nancy Torrance  David R. Olson 《Interchange》1987,18(1-2):136-146

In this paper we examine the relation between literacy, broadly conceived, and children's understanding of a set of concepts for representing language and meaning, primarily the concepts of what a text says as opposed to the interpretations one may make of that text. We refer to these concepts as the say/mean distinction. A series of studies are reported on children's developing understanding of this distinction and its implications for their progress in reading and interpreting texts. These studies indicate that while such interpretive distinctions are indeed important and while they are related to literate competence generally, it is a mistake to assume that they are strictly associated with the practices of learning to read and write. Far from being identified with reading and writing skills, these concepts appear to be a part of the general orientation to language and to forms of thought that are of particular relevance to a literate society. Consequently, they are acquired as much from the oral practices of literate parents as from the actual activities of reading and writing.This project was funded jointly by SSHRC and the Ontario Ministry of Education under its Block Transfer Grant to OISE.  相似文献   

Collaborating with teachers to design and implement assessments for self-regulated learning in the context of authentic classroom writing tasks     

Nancy E. Perry  Simon Lisaingo  Nikki Yee  Natasha Parent  Xinke Wan  Krista Muis 《Assessment in Education: Principles, Policy & Practice》2020,27(4):416-443

  相似文献   

Identifying waking time in 24-h accelerometry data in adults using an automated algorithm     

Julianne D. van der Berg  Paul J. B. Willems  Jeroen H. P. M. van der Velde  Hans H. C. M. Savelberg  Nicolaas C. Schaper  Miranda T. Schram 《Journal of sports sciences》2016,34(19):1867-1873

As accelerometers are commonly used for 24-h measurements of daily activity, methods for separating waking from sleeping time are necessary for correct estimations of total daily activity levels accumulated during the waking period. Therefore, an algorithm to determine wake and bed times in 24-h accelerometry data was developed and the agreement of this algorithm with self-report was examined. One hundred seventy-seven participants (aged 40–75 years) of The Maastricht Study who completed a diary and who wore the activPAL3? 24 h/day, on average 6 consecutive days were included. Intraclass correlation coefficient (ICC) was calculated and the Bland–Altman method was used to examine associations between the self-reported and algorithm-calculated waking hours. Mean self-reported waking hours was 15.8 h/day, which was significantly correlated with the algorithm-calculated waking hours (15.8 h/day, ICC = 0.79, P = < 0.001). The Bland–Altman plot indicated good agreement in waking hours as the mean difference was 0.02 h (95% limits of agreement (LoA) = ?1.1 to 1.2 h). The median of the absolute difference was 15.6 min (Q1–Q3 = 7.6–33.2 min), and 71% of absolute differences was less than 30 min. The newly developed automated algorithm to determine wake and bed times was highly associated with self-reported times, and can therefore be used to identify waking time in 24-h accelerometry data in large-scale epidemiological studies.  相似文献