Associative structure of integrated temporal relationships     

Cody W. Polack  Mikael Molet  Gonzalo Miguez  Ralph R. Miller 《Learning & behavior》2013,41(4):443-454

According to the temporal-coding hypothesis (TCH; Savastano & Miller, Behavioural Processes 44:147–162, 1998), acquired associations include temporal information concerning the interval between the associated elements. Moreover, the TCH posits that subjects can integrate two independently acquired associations that share a common element (e.g., S2–S1 and S1–US), which results in the creation of a third association with its own temporal relationship (S2–US). Some evidence has suggested that such temporal integration occurs at the time of testing (Molet, Miguez, Cham, & Miller, Journal of Experimental Psychology: Animal Behavior Processes 38:369–380, 2012). Here we report two fear-conditioning experiments with rats conducted to identify the associative structure of the integrated temporal relationship. The goal was to distinguish between two possible associative structures that could exist following an initial test on which temporal integration occurs: (1) Conditioned responding to S2 on subsequent tests could be the result of recurring successive activation of two independently learned temporal maps that remain independently stored in memory (i.e., S2–S1 plus S1–US). (2) Temporal integration at the moment of initial testing could result in the formation of a direct S2–US (or S2–response) temporal map. Integration was found to occur at test and to produce a new association that was independent of associations with the common element (S1). However, the associative status of S1 appeared to modulate whether or not the new association with S2 was US-specific (S2–US) or directly activated a fear response (S2–response).  相似文献   

CALCULUS STUDENTS’ AND INSTRUCTORS’ CONCEPTUALIZATIONS OF SLOPE: A COMPARISON ACROSS ACADEMIC LEVELS     

Courtney Nagle  Deborah Moore-Russo  Janine Viglietti  Kristi Martin 《International Journal of Science and Mathematics Education》2013,11(6):1491-1515

This study considers tertiary calculus students’ and instructors’ conceptualizations of slope. Qualitative techniques were employed to classify responses to 5 items using conceptualizations of slope identified across various research settings. Students’ responses suggest that they rely on procedurally based conceptualizations of slope, showing little evidence of covariational reasoning. In contrast, instructors’ responses demonstrated a multi-dimensional understanding of slope as a functional property, which applies to real-world situations and plays an integral role in the development of key calculus concepts. While relatively diverse, the instructors’ responses seldom reported determining increasing or decreasing trends of a line from its slope. This conceptualization was used frequently by students and could help them better understand how slope ties to positive and negative derivatives. The most frequently used conceptualizations for students in this study align with past research findings on the emphasis of the secondary mathematics curriculum, supporting the possibility of cultural influences (academic and geographic) on individuals’ conceptualizations of slope. Thus, this study provides valuable insight into conceptualizations of slope and provides direction for future research on slope and the broader topic of cultural influences on mathematical meaning.  相似文献   

PERCEPTIONS AND PRACTICES OF CULTURALLY RELEVANT SCIENCE TEACHING IN AMERICAN INDIAN CLASSROOMS     

Younkyeong Nam  Gillian Roehrig  Anne Kern  Bree Reynolds 《International Journal of Science and Mathematics Education》2013,11(1):143-167

This study explores the perceptions of culturally relevant science teaching of 35 teachers of American Indian students. These teachers participated in professional development designed to help them better understand climate change science content and teaching climate change using both Western science and traditional and cultural knowledge. Teacher perceptions of practices using culturally relevant instruction were evaluated. The data were analyzed both quantitatively and qualitatively. The results from the survey analysis show that the teachers’ existing practices of culturally relevant science teaching were limited in choosing topics relevant to American Indian culture. We found three common themes from the teachers’ perceptions of culturally relevant science teaching, meaning of culturally relevant science teaching, teaching strategies, and purpose of culturally relevant science teaching from the qualitative data. We also found that teachers with higher survey scores perceive culturally relevant science teaching differently than teachers with lower survey scores, specifically for the purposes and teaching strategies of culturally relevant science teaching. The results show that teachers with higher survey scores tended to perceive culturally relevant science teaching as a two-way learning process between teachers and students where the teachers can learn traditional science knowledge from the students. They also tend to perceive using concrete traditional science examples as effective teaching strategy for culturally relevant science teaching and building strong relationships with American Indian students as the most important purpose of culturally relevant science teaching. We also discuss common challenges faced by science teachers when trying to implement culturally relevant science teaching with American Indian students.  相似文献   

Unequal under law: race in the war on drugs     

O. Nicholas Robertson 《Journal of Criminal Justice Education》2013,24(4):602-606

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Criminal justice doctoral programs in the United States and Canada: Findings from a national survey     

Timothy J. Flanagan 《Journal of Criminal Justice Education》2013,24(2):195-213

Characteristics of 13 doctoral programs in criminal justice and criminology are examined. Features described include the age and size of the programs, representation of women and minorities among faculty and graduate students, admissions requirements and admissions activity, financial support available to graduate students, and characteristics of the curricula. Criminal justice doctoral programs vary widely on each of these characteristics.  相似文献   

Finding the law: A criminal justice guide to basic legal research techniques     

James R. Acker 《Journal of Criminal Justice Education》2013,24(2):215-244

Either by choice or by necessity, criminal justice students, educators, researchers, administrators, and practitioners frequently seek information or engage in conduct that somehow concerns the law. There are numerous reasons why persons interested in criminal justice theory and practice may want or need legal knowledge, but a lack of familiarity with the basic techniques for conducting legal research may inhibit access to this knowledge. This article describes the reference materials available for legal research, explains how they are used, and suggests why it is important that more people who are involved with criminal justice become skilled in the basic techniques of legal research.  相似文献   

Exploring Simulator Use in the Preparation of Chemical Engineers     

Randy Yerrick  Carl Lund  Yonghee Lee 《Journal of Science Education and Technology》2013,22(3):362-378

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BETTER COLLEGE INFORMATION FOR STUDENTS: THE ROLE OF THE STATE TWO‐YEAR COLLEGE AGENCY     

David W. Chapman  Marilynn M. Jewell  James L. Miller Jr. 《Community College Journal of Research & Practice》2013,37(2):107-119

Prospective two‐year college students often lack adequate information on the range of educational alternatives available to them. Increasingly, state level agencies are playing a role in responding to that need. This article reports on a. national study of state two‐year college agencies to determine the extent and comprehensiveness of the postsecondary educational information they provide to students. Results indicate that most states have information they send to prospective students, but it varies widely in quality and often overlooks information students say they want to know. States with model information are identified.  相似文献   

NOTEWORTHY BOOKS RECEIVED     

James E. McClellan 《Review of Education, Pedagogy & Cultural Studies》2013,35(3):232-239

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MULTICULTURALISM AND CBTE: A HISTORIAN'S REFLECTION     

Ronald K. Goodenow 《Review of Education, Pedagogy & Cultural Studies》2013,35(1):44-51

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