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This paper aims to present an investigation into the variation of scan vector hatch rotation strategies in selective laser melting (SLM), focussing on how it effects density, surface roughness, tensile strength and residual stress.

First the optimum angle of hatch vector rotation is proposed by analysing the effect of different increment angles on distribution of scan vectors. Sectioning methods are then used to determine the effect that the chosen strategies have on the density of the parts. The top surface roughness was analysed using optical metrology, and the tensile properties were determined using uni-axial tensile testing. Finally, a novel multi-support deflection geometry was used to quantify the effects of rotation angles on residual stress.

The results of this research showed that the hatch rotation angle had little effect on the density, top surface roughness and strength of the parts. The greatest residual stress deflection was measured parallel to unidirectional scan vectors. The use of hatch rotations other than alternating 90° showed little benefit in lowering the magnitude of residual stresses. However, the use of rotation angles with a good suitability measure distributes stresses in all directions more evenly for certain part geometries.

All samples produced in this work were made from commercially pure titanium, therefore care must be taken when applying these results to other materials.

This paper serves to increase the understanding of SLM scanning strategies and their effect on the properties of the material.

Validation of the Teachers' Sense of Efficacy Scale (TSES) for use with teachers in Macao (SAR) was undertaken to determine its usefulness as a measure of teacher self-efficacy for inclusive education. This paper discusses the results found by analyzing various versions of the TSES and TSES-C in a Chinese format with 200 pre-service teachers in Macao (SAR). Psychometric analyses were undertaken to investigate the validity of the existing scales and the three and two factor solutions. The results indicated a preferred 9-item version that produced improved factor loadings and reliabilities. The use of a relatively quick and short scale to measure such a complex phenomenon as teacher self-efficacy is discussed. Issues are raised regarding generalizability of scales and the impact of culture, demographics, and edifying issues that may impact on the usefulness of such scales.

The purpose of this paper is to examine the ways assemblaging communities work to support, hinder or disrupt literacy pedagogy in one English Language Arts (ELA) classroom. Through an expanded understanding of community based on the concept of assemblage, this paper discusses the ways in which one teacher’s critical literacies instructional practices emerged, configured and ruptured through the assemblaging communities’ that affected her enactment of critical literacies pedagogy. A focus on assemblaging communities recognizes the de/re/territorializing power of the evolving groups of bodies that produce a classroom and pedagogy in particular ways.

Drawing on observational field notes and informal exchanges, this qualitative study uses post-structural and post-human theory to examine the assemblaging communities that produced the enactment of critical literacies pedagogy in a seventh grade ELA classroom. Assemblage theory is used to analyze data to examine the assemblaging communities that de/re/territorialized in Ms T’s teaching in relation to critical literacies pedagogy. This analytical orientation allowed for a nuanced look at communities as evolving, de/re/territorializing formations that, in this study, created tensions for enacting critical literacies pedagogy.

Assemblaging communities are always producing classrooms in particular ways, demonstrating the complexities and realities of enacting literacy pedagogy. Through analysis of the data, the rupture between the assemblaging communities that produced the enactment of critical literacies pedagogy and the assemblaging communities that produced test prep (and altered critical literacies) became apparent. Ruptures like this must be attended to because enacting critical literacies pedagogy is never done neutrally and without attention to the assemblaging communities that are always de/re/territorializing pedagogy, teachers may not be equipped to respond to the unexpected ruptures as well as material realities produced from these.

Educators can use the concept of assemblaging communities for recognizing the territories that shape their literacy pedagogy. By foregrounding assemblaging communities, researchers and educators may be more appropriately equipped to consider the real-time negotiations at play when enacting critical literacies pedagogy in the classroom. Enacting critical literacies pedagogy is never done neutrally, and attention to the assemblaging communities that are always de/re/territorializing pedagogy, teachers may be more equipped to respond to the material realities that are produced through their pedagogical actions.

This study suggests assemblaging communities as a way to productively move forward a perspective on communities that foregrounds the moving bodies that produce communities differently in evolving ways and their de/re/territorializing forces that create material realities for classrooMs Assemblaging communities moves the purpose from defining a community or interpreting what it means to looking at what it does, how it functions and for this study, how assemblaging communities produced critical literacies pedagogy in one classroom.