Some determinants of second-order conditioning     

Witnauer JE  Miller RR 《Learning & behavior》2011,39(1):12-26

In a Pavlovian conditioning situation, an initially neutral stimulus may be made excitatory by nonreinforced presentations in compound with an established conditioned excitor [i.e., second-order conditioning (SOC)]. The established excitor may be either a punctate cue or the training context. In four conditioned suppression experiments using rats, we investigated whether SOC phenomena parallel other cue interaction effects. In Experiment 1, we found that the response potential of a target stimulus was directly related to the intertrial interval when SOC was mediated by a punctate cue, and inversely related to the intertrial interval when SOC was mediated by the training context. Experiment 2 demonstrated that punctate- and context-mediated SOC are oppositely affected by posttraining context extinction, and Experiments 3 and 4 demonstrated that context- and punctate-mediated SOC are differentially affected by conditioned stimulus (Experiment 3) and unconditioned stimulus (Experiment 4) preexposure treatments. These findings parallel phenomena in conditioned inhibition and cue competition situations.  相似文献   

EXAMINING TEACHERS�� STRUGGLES AS THEY ATTEMPT TO IMPLEMENT DIALOGICAL INTERACTION AS PART OF PROMOTING MATHEMATICAL REASONING WITHIN THEIR CLASSROOMS     

Recai Akkus  Brian Hand 《International Journal of Science and Mathematics Education》2011,9(4):975-998

This study examines the changes in teaching practices during the implementation of a pedagogical model called the mathematics reasoning approach (MRA), which was founded on 2 critical areas in mathematics, problem solving, and writing to learn. Three algebra teachers implemented the approach with their classes, which were divided into control (traditional) and treatment (student-centered approach) groups, with their levels of implementation measured by the Reformed Teaching Observation Protocol (RTOP) instrument. The implementation of the model resulted in positive changes in teachers’ pedagogical practices and yet showed the struggles they faced. In the control classes (traditional classes), the level of teaching remained the same throughout the study, whereas in the treatment classes (MRA classes), a significant improvement in the level of teaching was observed. Even though the teachers’ implementation levels differed from each other, the patterns of the change for all 3 teachers showed similarities; that is, their MRA teaching level was initially equivalent to their control teaching, but as the semester progress, there was a separation between the 2 approaches. This separation between the 2 approaches appeared to be dependent upon the pedagogical area on which the teacher put emphasis. The skill of questioning seemed to be 1 which each teacher first changed.  相似文献   

Recovery from the overexpectation effect: Contrasting performance-focused and acquisition-focused models of retrospective revaluation     

Aaron P. Blaisdell  James C. Denniston  Ralph R. Miller 《Learning & behavior》2001,29(4):367-380

In four Pavlovian conditioned lick-suppression experiments, rats had two conditioned stimuli (CSs X and A) independently paired with footshock, followed by pairings of a compound of A and X with the footshock. On subsequent tests with CS X, less conditioned suppression was observed than in control subjects that lacked the compound AX→footshock trials. Thisoverexpectation effect was reversed through posttraining extinction of CS A, a result consistent with both performance- and acquisition-focused models of retrospective revaluation. However, only performance-focused models could account for how posttraining increases or decreases in the A-footshock temporal interval attenuate the overexpectation effect.  相似文献   

The poetry explosion     

Brian Merrick 《Children‘s Literature in Education》1991,22(1):25-34

Brian Merrick bas made a major contribution to the development of poetry teaching for younger children in the United Kingdom during the 1980s. CLE invited bim to look back over the decade and to select a personal list of favorite collections.ForCLE he has written on Poetry in Performance (issue 35) and Charles Causley (issue 70). The latter article was expanded intoTalking with Charles Causley for the National Association for the Teaching of English (1989). NATE has also published his influentialExploring Poetry: 5–8 (1987) andExploring Poetry: 8–13 (1990).  相似文献   

Indigenous cultural contexts for STEM experiences: snow snakes’ impact on students and the community     

Brant G. Miller  Gillian Roehrig 《Cultural Studies of Science Education》2018,13(1):31-58

Opportunities for American Indian youth to meaningfully engage in school-based science, technology, engineering, and mathematics (STEM) experiences have historically been inadequate. As a consequence, American Indian students perform lower on standardized assessments of science education than their peers. In this article we describe the emergence of meaning for students—as well as their community—resulting from Indigenous culturally-based STEM curriculum that used an American Indian tradition as a focal context. Specifically, the game of snow snakes (Gooneginebig in Ojibwe) afforded an opportunity for STEM and culturally-based resources to work in unison. A case study research design was used with the bounded case represented by the community associated with the snow snake project. The research question guiding this study was: What forms of culturally relevant meaning do students and the community form as a result of the snow snake game? Results indicate evidence of increased student and community engagement through culturally-based STEM experiences in the form of active participation and the rejuvenation of a traditional game. Implications are discussed for using culturally-based contexts for STEM learning.  相似文献   

Book reviews     

Brian Cambourne 《Prospects》1985,15(3):471-476

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Improving Inquiry Teaching through Reflection on Practice     

Christine R. Lotter  Cory Miller 《Research in Science Education》2017,47(4):913-942

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Fire play: ICCARUS—Intelligent command and control,acquisition and review using simulation*     

James Powell  Theo Wright  Paul Newland  Chris Creed  Brian Logan 《British journal of educational technology : journal of the Council for Educational Technology》2008,39(2):369-389

Is it possible to educate a fire officer to deal intelligently with the command and control of a major fire event he will never have experienced? The authors of this paper believe there is, and present here just one solution to this training challenge. It involves the development of an intelligent simulation based upon computer managed interactive media. The expertise and content underpinning this educational development was provided by the West Midlands Fire Service. Their brief for this training programme was unambiguous and to the point:

• 1 Do not present the trainee with a model answer, because there are no generic fires. Each incident is novel, complex, and often ‘wicked’ in that it changes obstructively as it progresses. Thus firefighting demands that Commanders impose their individual intelligence on each problem to solve it.
• 2 A suitable Educational Simulator should stand alone; operate in real time; emulate as nearly as possible the ‘feel’ of the fireground; present realistic fire progress; incorporate the vast majority of those resources normally present at a real incident; bombard the trainee with information from those sources; provide as few system‐prompts as possible.
• 3 There should also be an interrogable visual debrief which can be used after the exercise to give the trainees a firm understanding of the effects of their actions. This allows them to draw their own conclusions of their command effectiveness. Additionally, such a record of command and control will be an ideal initiator of tutorial discussion.
• 4 The simulation should be realisable on a hardware/software platform of £10 000.
• 5 The overriding importance is that the simulation should ‘emulate as nearly as possible the feelings and stresses of the command role’.

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Reviews     

G. E. Bookbinder  Jane Miller  Alan Treadwell 《Literacy》1978,12(2):48-54

Foster , John , L. (Editor ). (1977). Reluctant to Read? Edinburgh Reading Tests - Stages 1 and 4 - Godfrey Thomson Unit. Dubin , F. and Olshtain , E. (1977). Facilitating Language Learning. Skitt , Frank . (1978). Themes for Language Learning.  相似文献   

Is students’ energy literacy related to their university’s position in a sustainability ranking?     

D. R. E. Cotton  J. Winter  W. Miller  L. Dalla Valle 《Environmental Education Research》2018,24(11):1611-1626

Abstract

University rankings are increasingly important internationally, and in the UK include a sustainability ‘Green League’. However, there is little evidence about experiences of studying in ‘sustainable universities’. We report an empirical study at five universities in varied positions in the Green League, exploring students’ energy literacy, environmental attitudes and perceptions of their institution’s energy-saving efforts. Although the link to energy literacy is not clear, findings suggest that there are significant differences between students’ environmental attitudes at universities placed at different points in the league. In addition, students at higher ranked universities are more positive about their university’s energy-saving efforts, suggesting that these institutions may exhibit more overt manifestations of sustainability. This is important since students report being more likely to choose energy-conservation behaviours if there is visible representation of energy use. The study is the first to attempt a comparison between universities at different positions in a sustainability ranking.  相似文献