The effect of worked examples on student learning and error anticipation in algebra     

Barbieri  Christina Areizaga  Booth  Julie L.  Begolli  Kreshnik N.  McCann  Nicholas 《Instructional Science》2021,49(4):419-439

Instructional Science - The present study examines the effectiveness of incorporating worked examples with prompts for self-explanation into a middle school math textbook. Algebra 1 students...  相似文献   

Making broadcast television participative: Eliciting mathematical behavior throughSquare One TV     

Shalom M. Fisch  Susan K. McCann 《Educational technology research and development : ETR & D》1993,41(3):103-109

The current reform movement in mathematics education has called for new ways of teaching that encourage children to become active participants in mathematical problem solving. In this article, the potential of educational television to elicit such behavior is investigated by reviewing research on theSquare One TV television series. A sizable body of evidence indicates that, through viewer participation,Square One TV can promote mathematical behavior directly among its target audience of 8- to 12-year-olds. Described in the article are the types of viewer participation that have been observed, threeSquare One TV formats that have consistently been found to elicit participative behavior, and several characteristics of these formats that may have been responsible for increased viewer participation. If these characteristics are incorporated into future television-based materials, they may increase the potential of the materials to elicit active participation among viewers. The production ofSquare One TV and the research described here were supported by the National Science Foundation, the Corporation for Public Broadcasting, the Carnegie Corporation, and the U.S. Department of Education. Production of the first season was also supported by the Andrew W. Mellon Foundation and by the IBM Corporation. Additional funding for the fourth and fifth seasons was provided by the Intel Corporation. This article is based on a paper presented at the 1993 meeting of the American Educational Research Association in Atlanta, Georgia.  相似文献   

A validational study of the structured interview of symptoms associated with sexual abuse (SASA) using three samples of sexually abused, allegedly abused, and nonabused boys     

Robert Wells  John McCann  Joyce Adams  Joan Voris  Barbara Dahl 《Child abuse & neglect》1997,21(12):1159-1167

Objective: With the rapid rise of sexual abuse allegations, there is a growing need to develop instruments to help clinicians determine the likelihood that sexual abuse has occurred.Method: This study evaluated the discriminant validity of a structured parent interview regarding emotional, behavioral, and physical symptoms by comparing results among three subsamples of age matched boys: 22 sexually abused boys whose perpetrator confessed, 47 boys evaluated in a sexual abuse clinic but without a history of perpetrator confession and 52 nonabused boys selected after rigorous screening.Results: In comparison with the nonabused (NA) boys, the sexually abused boys were significantly more likely to demonstrate sudden emotional and behavioral changes, frequent stomachaches, more knowledge about sex and sexual activities than expected for age, unusual agressiveness toward playmate or toy's private parts, crying easily, difficulty getting to sleep, and a change to poor school performance. The internal reliability of the SASA was determined to be .83 and scoring of an abbreviated 12-item scale demonstrated a sensitivity of 90.9% and a specificity of 88.5%.Conclusions: The findings suggest that Structured Interview of Symptoms Associated with Sexual Abuse (SASA) is an effective tool which may help in the comprehensive assessment of boys who may have been sexually abused.  相似文献   

The structure and evolution of industrial clusters: Transactions, technology and knowledge spillovers   总被引：2，自引：0，他引：2  

Simona Iammarino  Philip McCann 《Research Policy》2006,35(7):1018-1036

In this paper, we investigate the relationship between location patterns, innovation processes and industrial clusters. In order to do this we extend a transactions costs-based classification into a knowledge-based taxonomy of clusters, along the lines suggested by a critical revision of the main assumptions underlying most of the existing literature on spatial clusters. Our arguments show that the transactions costs approach and the innovation and technological regimes framework are broadly consistent, and that real insights into the microfoundations, nature, and evolution of clusters can be provided by these classification systems.  相似文献   

The Value of Exhibit Material to the Professional School Library     

McCann AM 《Bulletin of the Medical Library Association》1946,34(1):22-25

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Restructuring support staff classification levels for academic health sciences library positions   总被引：1，自引：0，他引：1  

J C McCann  S E Davis  D J Trainor  D K Waller  R B Greenblatt 《Bulletin of the Medical Library Association》1990,78(3):293-301

Nonprofessional library support staff traditionally hold what are considered to be low-paying, nonchallenging positions. These negative factors make retaining creative and productive employees difficult. This article outlines the approach taken at the Medical College of Georgia's Robert B. Greenblatt, M.D. Library to devise a structure of library staff positions that becomes progressively more demanding. A new nine-level Library Staff Classification Plan resulted. This plan also enables and encourages employees to acquire more skills and to accept more responsibility in order to qualify for higher-level library positions or to advance their present position to receive comparable rewards. The plan expresses the level of responsibilities expected, the employee qualifications desired, and lists representative duties across the spectrum of typical library tasks.  相似文献   

Women Faculty of Color: Stories Behind the Statistics     

Bridget Turner Kelly  Kristin I. McCann 《The Urban Review》2014,46(4):681-702

In this qualitative study we address two primary research questions: What are the experiences of women faculty of color (WFOC) who departed the tenure track at predominantly White, research universities? Using the modified lens of the newcomer adjustment framework, what socialization factors may have contributed to the WFOCs’ departure? Through a longitudinal, in-depth examination of three WFOC who left their university prior to earning tenure, themes of gendered and racialized tokenization and isolation, a need for a more intrusive style of mentoring, and poor institutional fit were identified. Implications for future research on faculty members’ social identity and promising practices for faculty development are shared.  相似文献   

Cultural and gender influences on age identification     

Robert M. McCann  Kathy Kellermann  Howard Giles  Cynthia Gallois  M. Angels Viladot 《Communication Studies》2013,64(1):88-105

Age identification plays a significant role in young adults’ mass, interpersonal, intergenerational, and intercultural communication. This research examines cultural and gender influences on young people's age identity by measuring the social age identity of male and female young adult members of five cultures varying in individualism/collectivism (Laos, Thailand, Spain, Australia, and the U.S.A.). We found cultural influences on age identity to be both unexpected in nature and modest in effect. American and Laotian respondents had similar and nominally higher levels of age identity than Australian, Thai, and Spanish respondents, with all having a markedly different age identities than those of Japanese respondents as reported by other researchers. No direct effect for gender on age identity emerged, though American females were more age identified than all other respondents. Across cultures, the social identity scale was found to be a reasonably adequate measure of age identity.  相似文献   

Turning Silence into Speech and Action: Prison Activism and the Pedagogy of Empowered Citizenship     

Stephen John Hartnett  Jennifer K. Wood  Bryan J. McCann 《传播与批判/文化研究》2013,10(4):331-352

Based on almost 50 years of combined experience as prison activists and prison teachers, the authors offer three case studies of prison activism and pedagogy in action. The first case study, by Hartnett, details the “artistry of agency” as enacted in poetry workshops in prison and in public poetry events, thus illustrating artistic communication. The second, by Wood, examines how friendship becomes political in the epistolary communication between free and imprisoned correspondents, thus addressing interpersonal communication. The third, by McCann, addresses web-based communication as a tool for advocacy for condemned prisoner/activists on Texas’s death row, and hence political communication. Taken as a whole, the three case studies celebrate different communication strategies as avenues of enlightenment and empowerment while offering powerful arguments for abolishing the prison–industrial complex.  相似文献   

Therapeutic and Material <Victim> hood: Ideology and the Struggle for Meaning in the Illinois Death Penalty Controversy     

Bryan J. McCann 《传播与批判/文化研究》2013,10(4):382-401

This article analyzes the struggle over the <victim> ideograph following former Illinois Governor George Ryan's decision to commute all state death sentences in 2003. A therapeutic rendering of the <victim> ideograph typified mainstream opposition to Ryan's move. This approach personalized the death penalty at the expense of discussing its social and political implications. In contrast, the discourse of George Ryan and his supporters offered a material <victim> hood grounded in political, historical, and economic contextualization. By performing a historical materialist critique of this dialogue, I conclude that rhetorically deploying the figure of a material <victim> is an indispensable strategy for the abolitionist movement in that it allows activists to capitalize on the ideological constraints of liberalism while maintaining an awareness of capital punishment's implications in a capitalist society.  相似文献