Situated Simulation-Based Learning Environment to Improve Proportional Reasoning in Nursing Students

Proportional reasoning is the basis for most medication calculation processes and is fundamental for high-quality care and patient safety. We designed a simulated Medication Mathematics (siMMath) environment to support proportional reasoning in transitioning via concreteness fading between two mediators. The first mediator is simulated nursing tools of medication preparation. The second is a ratio-table setup which is used as a goal representation, which enables one to spatially hold in place different quantities in their relative proportion. We conducted a two-part study with nursing students. Part 1 was a quasi-experimental pretest–intervention–posttest design assessing the effectiveness of learning, by evaluating four categories of medical calculation questionnaire items (solid medications, unit conversion, concentrations, infusion rates). We used the Noelting proportional reasoning test to evaluate the generalizability and abstraction of proportional reasoning. Part 1 included an experimental group (n = 96) learning with siMMath, and a comparison group (n = 73) learning with an equation-based lecture approach. Part 2 employed a case study design to characterize the learning process. The experimental group’s learning gains were significantly higher than the comparison group’s for the two most challenging categories of the medication calculation problems questionnaire, namely concentrations and infusion rates. Furthermore, the experimental group’s learning gains were significantly higher than the comparison group’s for formal operational reasoning on the Noelting test. Students who used a ratio-table setup scored significantly higher on the Noelting posttest questionnaire. Nursing students who learned with the siMMath environment overcame difficulties in proportional reasoning to the highest levels and extended this understanding to other contexts.     

Perception of competence: risk and protective predictors following an e‐self‐advocacy intervention for adolescents with learning disabilities

The purpose of this study was to identify predictors of competence among adolescents with learning disabilities (LD) who participated in a virtual supported self‐advocacy programme within the risk and protective paradigm. The sample consisted of 374 adolescents with and without learning disabilities, students of the 7th to 9th grades, at 15 schools across Israel. The adolescents were divided into three groups, matched by age and gender: 111 adolescents with LD who participated in a five‐month virtual‐supported intervention, and two comparison groups: adolescents with LD (N = 115) who did not participate in the program and adolescents without LD (N = 148). The self‐perceptions of adolescents were assessed using the following questionnaires: basic psychological skills (competence and relatedness); hope and loneliness. Following the intervention, higher competence scores were reported by students with LD who participated in the programme. At that time (the end of the academic year), the predictors of the groups of students with LD for the competence measure were their level of competence at the beginning of the period, their belonging to the group who participated in the intervention, their loneliness and hope. Comparisons with predictors of the group of students without LD, and with predictors of competence at the beginning of the year, emphasized the importance of risk factors (loneliness) and the protective factors (hope) for students with LD. In addition, the results focused attention at the contribution of the participation in an e‐supported self advocacy programme for enhancing competence among students with LD.     

Positive reframing and the test performance of test anxious children

The present study tested whether the paradoxical technique of positive reframing, presented in the form of test instructions, could be used to reduce the cognitive experience of worry and thereby improve the arithmetic test performance of highly test anxious third-and fourth-grade children. Thirty high test anxious and thirty low test anxious children were assigned randomly to receive one of three types of instructions prior to taking an arithmetic word problem test: neutral instructions, reassuring instructions, and positive-reframing instructions, which encouraged the children to view worry as a positive attribute. The results indicated that the type of instructions given had no significant effect upon subsequent test performance. However, both high and low test anxious children who received positive reframing scored significantly higher on a state anxiety measure given post test. These findings suggest that, although positive reframing may have an emotional impact, it is ineffective in improving the arithmetic test performance of highly test anxious children.     

An off-the-shelf integrated microfluidic device comprising self-assembled monolayers for protein array experiments

Microfluidic-based protein arrays are promising tools for life sciences, with increased sensitivity and specificity. One of the drawbacks of this technology is the need to create fresh surface chemistry for protein immobilization at the beginning of each experiment. In this work, we attempted to include the process of surface functionalization as part of the fabrication of the device, which would substitute the time consuming step of surface functionalization at the beginning of each protein array experiment. To this end, we employed a novel surface modification using self-assembled monolayers (SAMs) to immobilize biomolecules within the channels of a polydimethylsiloxane (PDMS) integrated microfluidic device. As a model, we present a general method for depositing siloxane-anchored SAMs, with 1-undecyl-thioacetate-trichlorosilane (C₁₁TA) on the silica surfaces. The process involved developing PDMS-compatible conditions for both SAM deposition and functional group activation. We successfully demonstrated the ability to produce, within an integrated microfluidic channel, a C₁₁TA monolayer with a covalently conjugated antibody. The antibody could then bind its antigen with a high signal to background ratio. We further demonstrated that the antibody was still active after storage of the device for a week. Integration of the surface chemistry into the device as part of its fabrication process has potential to significantly simplify and shorten many experimental procedures involving microfluidic–based protein arrays. In turn, this will allow for broader dissemination of this important technology.     

Validation of a learning hierarchy for the mole concept

Three psychometric methods for validating learning hierarchies are applied to one data set derived from responses of grade 10 chemistry students to items representing the skills in a hypothesized hierarchy for the mole concept. Two methods which considered skills in pairs, namely the “test of inclusion” by White and Clark and the “ordering-theoretic method” by Airaisian and Bart produced generally similar results. The third method, by Dayton and Mac-ready, considered the hierarchy as a whole and produced clearer distinctions between alternative hierarchies than the first two methods. The hierarchy derived from this analysis was supported by a test for transfer of learning from subordinate to superordinate skills.     

Community-based environmental monitoring goes to school: translations,detours and escapes

Community-school partnerships are an established practice within environmental science education, where a focus on how local phenomena articulate with broader environmental issues and concerns brings potential benefits for schools, community organisations and local communities. This paper contributes to our understanding of such educational practices by tracing the diverse socio-material flows that constitute a community environmental monitoring project, where Australian school students became investigators of and advocates for particular sites in their neighbourhood. The theoretical resources of actor-network theory are drawn upon to describe how the project – as conceptualised by its initiators – was enacted as both human and non-human actors sought to progress their own agendas thus translating the concept-project into multiple project realities. We conclude by identifying implications for sustaining educational innovations of this kind.