A New Educational Perspective for Teaching Gravity

Today’s method of teaching the concept of falling bodies in French physics classes is ineffective, not only because it ignores the physical aspect of the phenomenon by addressing only its mathematical aspect, but also because it does not take into account students’ initial conceptions, which are often incompatible with scientific knowledge. The goal of the present study was to assess the effectiveness of a new educational perspective for teaching gravity, based on an analogical presentation of Einstein’s theory of the deformation of space‐time. The conceptions of French 15‐year‐old ninth graders and how they evolve are analyzed and compared for two different teaching methods, the new perspective (n = 102) and an approach based on Newton’s theory of bodies interacting at a distance. The data obtained are used to describe students’ initial conceptions of falling bodies, and confirm the lesser effectiveness of the teaching approach based on Newton’s theory. The results provide evidence of two phases of conceptual change: “positive substitution” (when a correct explanatory system replaces an erroneous one) and “generalization” (when the domain of validity of a correct explanatory system is extended). They also show that Einstein’s theory can be understood by ninth graders and promotes more conceptual change than a method based on Newton’s theory of bodies interacting at a distance. The new perspective appears to help students not only to extend the domain of validity of the correct conception – that bodies fall because they are attracted – but also to change their conception of attraction, now understood as the effect of a property of space rather than a property of bodies.     

Whose quality? The (mis)uses of quality reform in early childhood and education policy

This paper reports on the findings of an in-depth genealogical study of the discourse of quality in Australian Early Childhood Education and Care (ECEC) policy. Quality reform has become the foremost global policy agenda for ECEC due to assumptions about the economic potentials of quality services. In Australia, the recent National Quality Framework elevated early childhood policy in Australia from the margins as the lynchpin of a broader economic reform agenda. However, quality ECEC – what it is and does – is a complex, contestable notion that could be considered problematic for the sector to execute, particularly through market models of provision. Drawing on Foucauldian notions of discourse as the ‘already said’, the truth assumptions that have underpinned policy uses of quality ECEC in Australia are identified and critiqued. It is shown that the discourse of quality has been tactically deployed in Australian ECEC policy to realign quality ECEC outcomes with educative outcomes, as a means for government to selectively grow and govern human capital. This positions quality as a high-stakes reform discourse for early childhood stakeholders, entwined with the expanded reach and intensification of selective, performance-related standards and incentives.     

AN EXAMINATION OF THE ASSOCIATION BETWEEN OBSERVED AND SELF‐REPORTED CULTURALLY PROFICIENT TEACHING PRACTICES

A critical next step in advancing our understanding of teacher practices that can equitably engage and support learning in diverse classrooms is determining the effectiveness of culturally responsive interventions. Yet, quantitative measurement indicators of the effectiveness of culturally responsive teaching interventions are scarce. Most research relies exclusively on self‐reports, with limited attention to issues of social desirability, and few studies observe teacher practices. Data come from 142 K‐8 teachers in six schools who were assessed via the Assessing School Settings: Interactions of Students and Teachers (ASSIST), an externally‐conducted observation, and who also provided self‐report data of cultural responsiveness. Analyses indicated that teachers self‐reported higher rates of culturally responsive teaching strategies than were observed on the ASSIST. There were, however, significant associations between observations and teachers’ ratings of self‐efficacy. Findings suggest a need for additional research to develop and validate efficient, multi‐informant approaches for assessing cultural responsiveness in the classroom.     

Foreign language reading and spelling in gifted students with dyslexia in secondary education

A few studies suggest that gifted children with dyslexia have better literacy skills than averagely intelligent children with dyslexia. This finding aligns with the hypothesis that giftedness-related factors provide compensation for poor reading. The present study investigated whether, as in the native language (NL), the level of foreign language (FL) literacy of gifted students with dyslexia is higher than the literacy level of averagely intelligent students with dyslexia and whether this difference can be accounted for by the difference in their NL literacy level. The sample consisted of 148 Dutch native speaking secondary school students divided in four groups: dyslexia, gifted/dyslexia, typically developing (TD), and gifted. All students were assessed on word reading and orthographic knowledge in Dutch and English when they were in 7th or 8th grade. A subsample (n = 71) was (re)assessed on Dutch, English, French, and German literacy one year later. Results showed that Dutch gifted students with dyslexia have higher NL literacy levels than averagely intelligent students with dyslexia. As in the NL, a stepwise pattern of group differences was found for English word reading and spelling, i.e., dyslexia < gifted/dyslexia < TD < gifted. However, it was not found for French and German literacy performance. These results point towards compensation: the higher English literacy levels of gifted/dyslexic students compared to their averagely intelligent dyslexic peers result from mechanisms that are unique to English as a FL. Differences in results between FLs are discussed in terms of variation in orthographic transparency and exposure.     

An Emic,Mixed-Methods Approach to Defining and Measuring Positive Parenting Among Low-Income Black Families

Research Findings: This within-group exploratory sequential mixed-methods investigation sought to identify how ethnically diverse, urban-residing, low-income Black families conceptualize positive parenting. During the item development phase 119 primary caregivers from Head Start programs participated in focus groups and interviews. These qualitative data were content analyzed using a 3-stage iterative process that resulted in the development of a final set of 72 items for a paper-and-pencil measure. In the measure validation phase of the study initial construct validity of the 72-item measure was assessed with an independent sample of 665 respondents. Common factor analyses revealed 5 dimensions of positive parenting on the Black Parenting Strengths in Context scale that related in expected ways with other parent self-report measures. Practice or Policy: Black Parenting Strengths in Context dimensions provide initial support for a more nuanced operationalization of positive parenting than currently exists in any single scale for use with this group and hold promise for better honoring the culture- and context-specific parenting goals and practices that low-income Black parents subjectively view as important for producing healthy developmental outcomes for their children.     

Can LEDs help with art conservation? – Impact of different light spectra on paint pigment degradation

The impact of the spectral composition of light on the discoloration of paint pigments has been investigated for the case of lead chromate sulfate, an unstable yellow pigment used by Vincent van Gogh and other painters. With LEDification, museum lighting is moving from using halogen to LED lamps. LED light sources have a significantly different spectral composition than halogen lamps. To understand the impact of these differences on pigment stability, the wavelength dependence of pigment discoloration was determined. Contrary to the expectation that lower wavelength photons induce more damage than higher wavelength ones, UV (394?nm), blue, and cyan light all lead to similar levels of discoloration of a pigment for the same level of radiant power. By understanding this wavelength dependence, it becomes possible to create white light LED lamps with a spectral composition tuned to minimize the degradation effect. An existing LED solution with a modified emission indeed resulted in 30% less color change in the experiment than halogen. Furthermore, a method is proposed to optimize the LED spectra by tuning to the properties of each specific artifact. Simulations show that this can reduce the damage of the light source by 45% in specific cases.     

Quality in early years settings: Government,research and practitioners’ perspectives

This article begins by outlining the UK Government policy context, offering a brief critique before moving on to summarise recent research into ‘quality’ in the early years. The main body of the article locates the perspectives of early years practitioners within this context, drawing on data from an Economic and Social Research Council‐funded study of 18 early years settings, including interviews and focused group discussions with 165 practitioners. The findings reveal that practitioners’ understandings of ‘quality’ are influenced by government discourses but appear to be linked to the context of their setting together their personal and professional histories. In discussing the nature of ‘quality’, the authors focus on tensions inherent in the government discourses and draw out the implications for children's experiences and the training and development of early years practitioners.     

A Two-Generation Education Intervention and Children’s Attendance in Head Start

Two-generation human capital programs seek to promote the education of parents and children simultaneously. This study examines relations between family participation in CareerAdvance, which recruits parents of Head Start children into a workforce training program, and children’s Head Start attendance. The sample included 293 children (on average 4 years old) and their parents. After one semester, CareerAdvance children demonstrated higher rates of attendance and lower rates of absence and chronic absence (missing 10% or more of school days) than matched comparison children. These associations were similar across a range of high- and low-risk subgroups at baseline. These findings are discussed in terms of the implications of a family systems approach for improving children’s Head Start attendance.