Preservice Elementary School Teachers' Understandings of Theory Based Science Education

Journal of Science Teacher Education -     

Current Genetic Discoveries and Education: Strengths, Opportunities, and Limitations

ABSTRACT— This article notes that many key positive developments in education originated in research on the structure and genetics of abilities, providing primary evidence for ability in disadvantaged groups and playing a critical role in demonstrating the existence of developmental learning disorders and effective interventions. It is argued that new work in genetics offers similar hope, but that widely held beliefs about genetic equipotentiality and brain plasticity act as roadblocks to research improving educational outcomes. It is suggested that rebuilding the collaborative links between educationalists and psychometric and genetic research that functioned so effectively in the early development of universal education can again underpin improved educational outcomes.     

Second-wave white teacher identity studies: toward complexity and reflexivity in the racial conscientization of white teachers

Abstract

In this article, we introduce our special issue, ‘Second-Wave White Teacher Identity Studies: Toward Complexity and Reflexivity in the Racial Conscientization of White Teachers.’ We characterize white teacher identity studies as a developing field with important implications for education research and teacher education. Early work in this field focused on documenting, how white teachers denied and evaded the significance of race and white privilege in their work and lives. The articles in this special issue exemplify a second wave of white teacher identity studies which builds on and responds critically to this earlier work. Crucial concerns of this second-wave work include attending to the nuances and complexities of white racial identities, as well as examining the pedagogical, curricular, and institutional contexts within which these identities are taken up.     

The sight and site of North Korea: Citizen cartography’s rhetoric of resolution in the satellite imagery of labor camps

In recent years, satellite mapping of North Korea, especially of its labor camps, has become an important form of evidence of human rights violations, used by transnational advocacy groups to lobby Western governments for change. A phenomenon of “citizen cartography” has emerged where non-expert humanitarian actors use commercially available software like Google Earth to “infiltrate” the borders of North Korea. This essay interrogates the politics of seeing that takes place in creating the site and sight of North Korea by citizen cartographers, and historicizes these processes of seeing in Cold War and post-Cold War visual culture. Specifically, citizen cartography of North Korea engages in rhetorics of resolution, where the cartographer continually searches for a better, clearer view of the ground below, while still constrained by corporate software and logics of state sovereignty that make it difficult to “resolve” the problem of forced labor.     

Are hyoliths Palaeozoic lophophorates?

The phylogenetic position of hyoliths has long been unsettled, with recent discoveries of a tentaculate feeding apparatus (‘lophophore’) and fleshy apical extensions from the shell (‘pedicle’) suggesting a lophophorate affinity. Here, we describe the first soft parts associated with the feeding apparatus of an orthothecid hyolith, Triplicatella opimus from the Chengjiang biota of South China. The tuft-like arrangement of the tentacles of T. opimus differs from that of hyolithids, suggesting they collected food directly from the substrate. A reassessment of the feeding organ in hyolithids indicates that it does not represent a lophophore and our analysis of the apical structures associated with some orthothecids show that these represent crushed portions of the shell and are not comparable to the brachiopod pedicle. The new information suggests that hyoliths are more likely to be basal members of the lophotrochozoans rather than lophophorates closely linked with the Phylum Brachiopoda.     

Considerations of force plate transitions on centre of pressure calculation for maximal velocity sprint running

The aims of this study were to evaluate the accuracy of centre of pressure (COP) data obtained during transition of load across the boundary between two force plates, and secondly to examine the effect of such COP data on joint kinetics during sprint running performances. COP data were collected from two piezoelectric force plates as a trolley wheel was rolled across the boundary between the plates. Position data for the trolley were collected using an opto-electronic motion analysis system for comparison with COP data. Mean COP errors during transition across the plate boundary were 0.003 ± 0.002 m relative to a control point. Kinematic and kinetic data were also collected from eight athletes during sprint running trials to demonstrate the sensitivity of the inverse dynamics analysis to COP error for the ground contact phase of the dynamic movement trials. Kinetic sensitivity to the COP error was assessed during the entire stance phase for the ankle, knee, and hip joints and was less than 5% and 3% for joint moment and power data, respectively. Based on the small COP error during transition across plate boundaries, it is recommended that foot contacts overlapping two force plates may be included in inverse dynamics analyses.     

Investigation of differential movement at railroad bridge approaches through geotechnical instrumentation

Railway transitions experience differential movements due to differences in track system stiffness, track damping characteristics, foundation type, ballast settlement from fouling and/or degradation, as well as fill and subgrade settlement. This differential movement is especially problematic for high speed rail infrastructure as the ??bump?? at the transition is accentuated at high speeds. Identification of different factors contributing towards this differential movement, as well as development of design and maintenance strategies to mitigate the problem is imperative for the safe and economical operation of both freight and passenger rail networks. This paper presents the research framework and initial instrumentation details from an ongoing research effort at the University of Illinois at Urbana-Champaign. Three bridge approaches experiencing recurrent geometry problems were instrumented using multidepth deflectometers (MDDs) and strain gages to identify different factors contributing to the development of differential movements.     

Collecting Multidimensional Client Data Using Repeated Measures: Experiences of Clients and Counselors Using the CCAPS‐34

Many college counseling centers do not collect client data at each session because of perceived burdens. This study explored 55 clients’ and 16 doctoral counselor trainees’ experiences collecting and using data on client distress at each session over the course of counseling at a large public university's counseling center. Results indicated that the majority of both clients and counselors found the process convenient and clinically useful. Findings, clinical implications, and future directions are discussed.     

BDSM Disclosure and Stigma Management: Identifying Opportunities for Sex Education

While participation in the activities like bondage, domination, submission/sadism, masochism that fall under the umbrella term BDSM is widespread, stigma surrounding BDSM poses risks to practitioners who wish to disclose their interest. We examined risk factors involved with disclosure to posit how sex education might diffuse stigma and warn of risks. Semi-structured interviews asked 20 adults reporting an interest in BDSM about their disclosure experiences. Most respondents reported their BDSM interests starting before age 15, sometimes creating a phase of anxiety and shame in the absence of reassuring information. As adults, respondents often considered BDSM central to their sexuality, thus disclosure was integral to dating. Disclosure decisions in nondating situations were often complex considerations balancing desire for appropriateness with a desire for connection and honesty. Some respondents wondered whether their interests being found out would jeopardize their jobs. Experiences with stigma varied widely.     

Flipped classrooms: implications for K-12 students with learning and behavioural challenges from an international exploratory study of teacher educators

Flipped classrooms represent a new instructional paradigm for presenting K-12 instruction. Whereas in traditional classrooms new content is taught during the school day and application activities are assigned for homework, in flipped classrooms students are expected to acquire new content by working through assigned tasks at home prior to the next day’s class. Subsequently, class time is used for application activities. To date, limited, conflicting analyses of research about the efficacy of the flipped classroom paradigm have been reported. This lack of a clear consensus is of concern for students with serious learning and/or behavioural challenges who have not been the focus of these analyses and whose learning characteristics arguably run counter to what students must do to be successful in flipped classrooms. The investigation reported herein addresses one aspect of the aforementioned void in the literature. Data from an international survey of teacher educators from 33 countries that ascertained their thoughts about the appropriateness of the flipped classroom paradigm for students with serious learning and/or behavioural challenges are reported. Results indicate that teacher educators have reservations about the appropriateness of flipped classrooms, but that their opinions are not fully informed by knowledge about, and experience with, these classrooms.