Drawing to reason and learn in science

Despite mixed results in research on student learning from drawing in science, there is growing interest in the potential for this visual mode, in tandem with other modes, to enact and enable student reasoning in this subject. Building on current research in this field, and using a micro-ethnographic approach informed by socio-semiotic perspectives, we aimed to identify how and why student drawing can contribute to student reasoning and learning. In our study, secondary school students were challenged to explore and collaboratively create explanatory representations of phenomena including through drawing. Data were generated using multiple wall- and ceiling-mounted cameras capable of continuously tracking groups of students negotiating these representational challenges. Our analysis proceeded through active and iterative viewing of the extensive video record, and the identification of themes to establish possible relationships between drawing and reasoning. Through this process, we (a) identify multiple necessary conditions and varied opportunities for student drawing to enact and enable reasoning, and (b) extend current understandings of how the particular affordances of this mode interact with these conditions to contribute to student learning in science.     

Digital preservation and the Cedars project experience

This paper describes the development of a reliable, short questionnaire (PLSQ) to measure student perceptions of and satisfaction with quality of service in an academic library. This formed part of a wider study to evaluate student awareness and use of library services and staff support. This included the simultaneous development of a ‘factual’ questionnaire and two small scale observational studies, backed up with ‘market research‐type’ interviews to evaluate the effectiveness of the ‘help desk’ and ease of use of the computer catalogue. A ‘triangulation’ technique was thus used to provide indirect evidence that the questionnaire was validly measuring user satisfaction. The results from the initial trial of the questionnaire are described and compared with relevant findings from the ‘factual’ questionnaire and the help desk study. Though two samples completed different questionnaires, the frequency results arc either in complete agreement or mutually supportive. The help desk study results are also supportive, again suggesting that the questionnaire is a valid measure. Following statistical analyses, the final sixteen item PLSQ emerged which produces internally consistent responses and which appears to measure satisfaction with staff helpfulness and physical conditions in the library and perceptions of ability to find information and knowledge of CD‐ROM and other services.     

Knowledge Management and Library Culture

Knowledge management (KM), or the effective use of knowledge, has been practiced successfully by many business organizations. Individual libraries and librarians have periodically utilized KM. However, on a comprehensive scale, the library culture seems divided. This article examines the attitudes and practices of two distinct groups of specialized librarians and their relationship to the use of KM tools.     

Designing customizable reading modules for a high school literature classroom

This design case follows an ongoing collaboration between an instructional technologist and a high school literature teacher promoting reading comprehension through modules that provide visually interesting display of text on a computer screen along with cognitive tools. The modules were found to boost comprehension of specific content in even one use, and over time, overall reading skills were improved. Specific examples from the design and development process of this collaboration are shared here to illustrate decisions made in the face of common constraints—limited time, funding, and technical know-how—that emerged from theory and pilot studies. Teacher educators and their instructional-technology collaborators can use the information from this design and research process to harness the potential of ubiquitous software in affordable, replicable, and pedagogically sound ways.     

Occupational Therapy Students as Peer Assessors in Viva Examinations

This study was undertaken in order to evaluate the use of students as peer assessors, in collaboration with academic tutors, in the assessment of second-year viva examinations as part of a problem based learning occupational therapy curriculum. Data were collected from three consecutive cohorts of second-year students (N = 93), and an assessment was made of the reliability of the academic tutor marking, and the reliability of peer marking against the tutor marks. Results demonstrated that overall ratings of the viva examination performances given by the panel of assessors (two peer assessors and one academic tutor), were significantly correlated. On some occasions, such as the assessment of a borderline student, the ratings given were not as closely correlated. Some modifications of the examination process are suggested in order to optimise the reliability of the outcomes, but the study results lend support for the practice of peer assessment.     

Strain,depressed mood and suicidal thoughts among maltreated adolescents in the United States

Almost one-fourth of maltreated adolescents report they have thought about killing themselves in the last two weeks. We draw on Agnew's strain theory to develop a model to account for variability in suicidal thoughts among this high-risk group. We used data from a nationally representative sample of 572 maltreated adolescents, aged 11–15. One dimension of relational strain (poorer relationship with peers) and greater depressed mood were directly related to whether adolescents did or did not think about suicide. Depressed mood mediated the relationship between two strain variables (relationship with caregiver and with school) and suicidal thoughts. Child maltreatment strain (being severely harmed) and substance use were not directly related to suicidal thoughts; however, depressed mood appeared to mediate the relationship between drug use and suicidal thoughts. Adolescents who experience child maltreatment and who appear to be disconnected from caregivers, friends and school should be screened for depression and suicidal thoughts.     

Temporal processing and reading disability

The present investigation examined thehypothesis that early auditory temporalprocessing deficits cause later specificreading disability by impairing phonologicalprocessing (Farmer & Klein 1995; Tallal1980, 1984). Temporal processing ability atschool entry was examined using Tallal'sRepetition Test in a large unselected sample ofover 500 children followed over subsequentyears. Although our data confirmed the presenceof certain non-speech auditory processingdeficits in children later classified asspecific reading-disabled, many findings wereclearly at odds with a causal interpretation ofthis relationship. (1) Reading-disabled (RD)children were impaired at school entry on thesubtest with long interstimulus intervals(ISIs) but not the critical short-ISIsubtest. (2) RD children were not inferior toreading-age (RA) controls. (3) A subgroup of RDchildren with evidence of temporal deficitswere no less proficient on later phonologicalor reading measures than RD children with noevidence of early temporal impairment. (4)Although there was a reliable concurrentcorrelation between temporal deficits andphonological awareness at school entry(suggesting a possible common causeexplanation), early temporal deficits did notpredict later phonological impairment,pseudoword processing difficulties, or specificreading disability. On the other hand, earlytemporal deficits did predict later oralreceptive vocabulary and reading comprehensionweaknesses. These findings suggest thatauditory temporal deficits in dyslexics may beassociated with the same dysphasic-typesymptoms observed by Tallal and her colleaguesin specific language-impaired populations, butdo not cause the core phonological deficitsthat characterize dyslexic groups.