Impact of sustained professional development in STEM on outcome measures in a diverse urban district

Sustained professional development can support STEM (Science, Technology, Engineering, and Mathematics) reform. The authors describe a 3-year study of sustained professional development for 3 diverse urban schools across the salient factors of fidelity of implementation of project-based learning, development of professional learning communities, and student achievement. Qualitative and quantitative data were collected. The students who experienced the greatest fidelity of implementation exhibited the greatest gains (d = 1.41–2.03) on standardized test scores, while those with the lowest fidelity of implementation exhibited negative gains (d = –0.16 to –0.08). Qualitative data indicated teachers perceived there were multiple benefits from the implementation of project-based learning.     

What does Social Semiotics have to Offer Mathematics Education Research?

Social Semiotics, based on the work of the linguist Michael Halliday, emphasises the ways in which language functions in our construction and representation of our experience and of our social identities and relationships. In this paper, I provide an introduction to the theory and its analytic tools, considering how they can be applied in the field of mathematics education. Some research questions that may be raised and addressed from this perspective are identified. An illustrative example is offered, demonstrating a social semiotic approach to addressing questions related to construction of the nature of school mathematical activity in writing produced by secondary school students.     

Vocabulary Use by Low, Moderate, and High ASL-Proficient Writers Compared to Hearing ESL and Monolingual Speakers

The written English vocabulary of 72 deaf elementary school students of various proficiency levels in American Sign Language (ASL) was compared with the performance of 60 hearing English-as-a-second-language (ESL) speakers and 61 hearing monolingual speakers of English, all of similar age. Students were asked to retell "The Tortoise and the Hare" story (previously viewed on video) in a writing activity. Writing samples were later scored for total number of words, use of words known to be highly frequent in children's writing, redundancy in writing, and use of English function words. All deaf writers showed significantly lower use of function words as compared to their hearing peers. Low-ASL-proficient students demonstrated a highly formulaic writing style, drawing mostly on high-frequency words and repetitive use of a limited range of function words. The moderate- and high-ASL-proficient deaf students' writing was not formulaic and incorporated novel, low-frequency vocabulary to communicate their thoughts. The moderate- and high-ASL students' performance revealed a departure from findings one might expect based on previous studies with deaf writers and their vocabulary use. The writing of the deaf writers also differed from the writing of hearing ESL speakers. Implications for deaf education and literacy instruction are discussed, with special attention to the fact that ASL-proficient, deaf second-language learners of English may be approaching English vocabulary acquisition in ways that are different from hearing ESL learners.     

The use of engineering design scenarios to assess student knowledge of global,societal, economic,and environmental contexts

Product archaeology as an educational approach asks engineering students to consider and explore the broader societal and global impacts of a product's manufacturing, distribution, use, and disposal on people, economics, and the environment. This study examined the impact of product archaeology in a project-based engineering design course on student attitudes and perceptions about engineering and abilities to extend and refine knowledge about broader contexts. Two design scenarios were created: one related to dental hygiene and one related to vaccination delivery. Design scenarios were used to (1) assess knowledge of broader contexts, and (2) test variability of student responses across different contextual situations. Results from pre- to post-surveying revealed improved student perceptions of knowledge of broader contexts. Significant differences were observed between the two design scenarios. The findings support the assumption that different design scenarios elicit consideration of different contexts and design scenarios can be constructed to target specific contextual considerations.     

When Does 'Good News' Become 'Bad News'? Relationships between Government and the Integrated Schools in Northern Ireland

The development of a set of religiously integrated schools in Northern Ireland since 1981 is often portrayed in wholly positive terms. However, the continued growth of the movement has generated serious tensions at a number of levels which have wider implications for any analysis of the implications of parental choice.     

Expressive Vocabulary Predicts Nonverbal Executive Function: A 2-year Longitudinal Study of Deaf and Hearing Children

Numerous studies suggest an association between language and executive function (EF), but evidence of a developmental relationship remains inconclusive. Data were collected from 75 deaf/hard-of-hearing (DHH) children and 82 hearing age-matched controls. Children were 6–11 years old at first time of testing and completed a battery of nonverbal EF tasks and a test of expressive vocabulary. These tasks were completed again 2 years later. Both groups improved their scores on all tasks over this period. DHH children performed significantly less well than hearing peers on some EF tasks and the vocabulary test at both time points. Cross-lagged panel models showed that vocabulary at Time 1 predicted change in EF scores for both DHH and hearing children but not the reverse.     

Semi‐automating the manual literature search for systematic reviews increases efficiency

Background: To minimise retrieval bias, manual literature searches are a key part of the search process of any systematic review. Considering the need to have accurate information, valid results of the manual literature search are essential to ensure scientific standards; likewise efficient approaches that minimise the amount of personnel time required to conduct a manual literature search are of great interest. Objective: The objective of this project was to determine the validity and efficiency of a new manual search method that utilises the scopus ? database. Methods: We used the traditional manual search approach as the gold standard to determine the validity and efficiency of the proposed scopus method. Outcome measures included completeness of article detection and personnel time involved. Using both methods independently, we compared the results based on accuracy of the results, validity and time spent conducting the search, efficiency. Results: Regarding accuracy, the scopus method identified the same studies as the traditional approach indicating its validity. In terms of efficiency, using scopus led to a time saving of 62.5% compared with the traditional approach (3 h versus 8 h). Conclusions: The scopus method can significantly improve the efficiency of manual searches and thus of systematic reviews.     

Hallucination as epistemology: critiquing the visual in Ken Burns’ The West

A quantitative content analysis of 1,055 television ads reveals that male voiceovers outnumber female voiceovers 4:1. As has been the case for decades in television, a man is much more likely to serve as the disembodied and objective voice of authority, expertise, and reason. However, a woman's voice is twice as likely to be heard if her body is also represented on screen. Based on that finding, the authors argue that scopocentric sexism influences when and how gendered voices are presented. A woman's relative agency, her recourse to “voice” in both the literal and metaphoric sense, is conditioned by her visual presence. After completing the quantitative content analysis, a qualitative textual analysis was conducted on a subsample of ads in order to explore relationships between voice and body at a finer-grained level. The study provides an important update for critical ad research concerning voiceovers and is the first that systematically compares voice and body data. The authors conclude by presenting ideas for integrating critical sound research into media literacy curricula.     

Books and Publishing

Donald R. McCoy The National Archives: America's Ministry of Documents, 1934-1968 (Chapel Hill, Yniversity of North Carolina Press, 1978—$19.00)

Madeleine B. Stern Books and Book People in 19th Century America (New York: R.R. Bowker, 1978—$25.00)

Susan Otis Thompson American Book Design and William Morris (New York: Bowker, 1977—$29.95)