We draw on Engeström's (2011a) formative intervention approach to bring together mentor teachers and university supervisors to construct a tool for structuring observations and mentoring student ...teachers. Data include videos and transcripts from seven meetings where participants discussed mentoring and viewed video records of teaching practice to articulate problems and solutions. We examine how video afforded opportunities for participants to precisely describe problems of practice, to develop a shared vision and language of ambitious instruction, and to collectively construct frameworks to guide their work. Findings have implications for design of professional development for teacher educators and programs of teacher preparation.
Heterogeneity is fundamental to learning and when leveraged in instruction, can benefit racially minoritized children. However, finding ways to leverage heterogeneity toward disciplinary teaching is ...a formidable challenge and teachers can benefit from targeted support to recognize heterogeneity in STEM, and its relationship to race and racism in disciplinary teaching. These data draw from a nine-day professional development seminar for secondary teachers to promote heterogeneity in STEM learning (n = 12). Drawing on analyses of lesson plans developed by teachers during the seminar, and subsequent video analyses of small group discussions, we present a case of four teachers debating heterogeneity in science. The exchange is significant because it draws into relief the ideological and emotional terrain of disturbing the racial hierarchy in which Western Modern Science (WMS) is steeped, and its implications for the education of racially minoritized youth. In the focus interaction, a dynamic emerged where three teachers exalted WMS, while the fourth grappled with how cultural heterogeneity has or could matter to her science teaching. Drawing on the constructs of racial-ideological micro-contestation and racial microaggressions, this analysis illustrates three important dimensions to the design of professional learning for STEM teachers that center race: (1) how discipline-specific discussions can uniquely surface the latent racial and ideological meanings teachers associate with STEM; (2) the centrality of teachers' storied knowledge in grappling with heterogeneity; and (3) the interplay of micro-contestation and microaggressions in understanding and anticipating the experiences of minoritized teachers when debating issues of race, disciplinarity, and teaching.
Video is being used more widely in professional development to help teachers learn to notice and systematically analyze teaching practice. Video captures the authenticity and complexity of teaching ...and can promote the examination of classroom interactions in a deliberate and focused way. However, simply viewing video does not ensure teacher learning. An important question concerns how to facilitate substantive analysis of teaching practice with video so that it becomes a productive learning tool for teachers. In this study, we examine the in-the-moment moves facilitators make in two different video-based professional development programs to offer a framework for facilitation with video. We then examine patterns in facilitation across both contexts and identify practices that are unique to the goals of each setting. The findings from this study have implications for the design of video-based professional development and for developing a knowledge base for professional education.
As the nation implements SARS-CoV-2 vaccination in adults at an unprecedented scale, it is now essential to focus on the prospect of SARS-CoV-2 vaccinations in pediatric populations. To date, no ...children younger than 12 years have been enrolled in clinical trials. Key challenges and knowledge gaps that must be addressed include (1) rationale for vaccines in children, (2) possible effects of immune maturation during childhood, (3) ethical concerns, (4) unique needs of children with developmental disorders and chronic conditions, (5) health inequities, and (6) vaccine hesitancy. Because COVID-19 is minimally symptomatic in the vast majority of children, a higher acceptable risk threshold is required when evaluating pediatric clinical trials. Profound differences in innate and adaptive immunity during childhood and adolescence are known to affect vaccine responsiveness for a variety of childhood diseases. COVID-19 and the accompanying social disruption, such as the school shutdowns, has been disproportionately damaging to minority and low-income children. In this commentary, we briefly address each of these key issues, specify research gaps, and suggest a broader learning health system approach to accelerate testing and clinical trial development for an ethical and effective strategy to implement a pediatric SARS-CoV-2 vaccine as rapidly and safely as possible. IMPACT: As the US begins an unprecedented implementation of SARS-CoV-2 vaccination, substantial knowledge gaps have yet to be addressed regarding vaccinations in the pediatric population. Maturational changes in the immune system during childhood have influenced the effectiveness of pediatric vaccines for other diseases and conditions, and could affect SARS-CoV-2 vaccine responsiveness in children. Given that COVID-19 disease is far milder in the majority of children than in adults, the risk-benefit of a pediatric SARS-CoV-2 vaccine must be carefully weighed. The needs of children with developmental disabilities and with chronic disease must be addressed. Minority and low-income children have been disproportionately adversely affected by the COVID-19 pandemic; care must be taken to address issues of health equity regarding pediatric SARS-CoV-2 vaccine trials and allocation. Research and strategies to address general vaccine hesitancy in communities must be addressed in the context of pediatric SARS-CoV-2 vaccines.
This dissertation takes on a key and persistent challenge within teacher education: pre-service teacher learning in field experience. I approach this historical problem through its local ...manifestations, and this study examines an intervention that brought together three university supervisors and six classroom mentor teachers from one university-school partnership for seven meetings over the six months of student teaching. Framed by Cultural-Historical Activity Theory, the emergent design of the Mentoring Study Group intervention aimed to provoke expansive learning (Engeström, 1987; 2001) to transform how practitioners understand their work and to support them in constructing new tools and concepts for practice for themselves. Qualitative methods were used to examine the key problems of practice participants identified, the new tools and concepts for practice they developed, and to interpret learning in terms of the expansive learning conceptual model to understand how features of the model design enabled the group to broaden their understanding and coordinate their work. Results demonstrate that through participation in the structured collaboration offered by the emergent professional development approach, participants were able to uncover a fundamental contradiction embedded within teacher preparation, between goals of helping pre-service teachers develop ambitious instructional practice and preparing pre-service teachers to lead “formula lessons.” In attempting to confront and resolve this contradiction, the Mentoring Study Group devised a shared tool to coordinate their work, The Five High-Leverage Math Practices +1 Protocol and field-based pedagogical practices to guide modeling, observations, and feedback on teaching. This model of structured collaboration for teacher education practitioners holds promise for university-school partnership efforts to come together to develop shared approaches to mentoring and a common language of practice for the purpose of preparing beginning teachers for ambitious practice in the field.
This research investigates a collaboratively constructed observation tool as it is implemented by teacher educators into their direct work with pre-service teachers in the classroom. Constructed by ...the group with the explicit intention of connecting university coursework with field experience, research examines adaptations made by practitioners during feedback conferences with pre-service teachers and considers shifts in conceptions of their roles as teacher educators. Findings suggest an expanded role for classroom mentor teachers in teacher preparation, as mentor teachers are able to highlight key learning opportunities to pre-service teachers as they emerge in practice. In addition, findings point to the potential for school-university collaborations to improve coordination and coherence between coursework and fieldwork settings.
This dissertation takes on a key and persistent challenge within teacher education: pre-service teacher learning in field experience. I approach this historical problem through its local ...manifestations, and this study examines an intervention that brought together three university supervisors and six classroom mentor teachers from one university-school partnership for seven meetings over the six months of student teaching. Framed by Cultural-Historical Activity Theory, the emergent design of the Mentoring Study Group intervention aimed to provoke expansive learning (Engeström, 1987; 2001) to transform how practitioners understand their work and to support them in constructing new tools and concepts for practice for themselves. Qualitative methods were used to examine the key problems of practice participants identified, the new tools and concepts for practice they developed, and to interpret learning in terms of the expansive learning conceptual model to understand how features of the model design enabled the group to broaden their understanding and coordinate their work. Results demonstrate that through participation in the structured collaboration offered by the emergent professional development approach, participants were able to uncover a fundamental contradiction embedded within teacher preparation, between goals of helping pre-service teachers develop ambitious instructional practice and preparing pre-service teachers to lead "formula lessons." In attempting to confront and resolve this contradiction, the Mentoring Study Group devised a shared tool to coordinate their work, The Five High-Leverage Math Practices +1 Protocol and field-based pedagogical practices to guide modeling, observations, and feedback on teaching. This model of structured collaboration for teacher education practitioners holds promise for university-school partnership efforts to come together to develop shared approaches to mentoring and a common language of practice for the purpose of preparing beginning teachers for ambitious practice in the field.
Changes in the airway microbiome may be important in the pathophysiology of chronic lung disease in patients with cystic fibrosis. However, little is known about the microbiome in early cystic ...fibrosis lung disease and the relationship between the microbiomes from different niches in the upper and lower airways. Therefore, in this cross-sectional study, we examined the relationship between the microbiome in the upper (nose and throat) and lower (sputum) airways from children with cystic fibrosis using next generation sequencing. Our results demonstrate a significant difference in both α and β-diversity between the nose and the two other sampling sites. The nasal microbiome was characterized by a polymicrobial community while the throat and sputum communities were less diverse and dominated by a few operational taxonomic units. Moreover, sputum and throat microbiomes were closely related especially in patients with clinically stable lung disease. There was a high inter-individual variability in sputum samples primarily due to a decrease in evenness linked to increased abundance of potential respiratory pathogens such as Pseudomonas aeruginosa. Patients with chronic Pseudomonas aeruginosa infection exhibited a less diverse sputum microbiome. A high concordance was found between pediatric and adult sputum microbiomes except that Burkholderia was only observed in the adult cohort. These results indicate that an adult-like lower airways microbiome is established early in life and that throat swabs may be a good surrogate in clinically stable children with cystic fibrosis without chronic Pseudomonas aeruginosa infection in whom sputum sampling is often not feasible.
Celotno besedilo
Dostopno za:
DOBA, IZUM, KILJ, NUK, PILJ, PNG, SAZU, SIK, UILJ, UKNU, UL, UM, UPUK
Changes in the airway microbiome may be important in the pathophysiology of chronic lung disease in patients with cystic fibrosis. However, little is known about the microbiome in early cystic ...fibrosis lung disease and the relationship between the microbiomes from different niches in the upper and lower airways. Therefore, in this cross-sectional study, we examined the relationship between the microbiome in the upper (nose and throat) and lower (sputum) airways from children with cystic fibrosis using next generation sequencing. Our results demonstrate a significant difference in both alpha and beta -diversity between the nose and the two other sampling sites. The nasal microbiome was characterized by a polymicrobial community while the throat and sputum communities were less diverse and dominated by a few operational taxonomic units. Moreover, sputum and throat microbiomes were closely related especially in patients with clinically stable lung disease. There was a high inter-individual variability in sputum samples primarily due to a decrease in evenness linked to increased abundance of potential respiratory pathogens such as Pseudomonas aeruginosa. Patients with chronic Pseudomonas aeruginosa infection exhibited a less diverse sputum microbiome. A high concordance was found between pediatric and adult sputum microbiomes except that Burkholderia was only observed in the adult cohort. These results indicate that an adult-like lower airways microbiome is established early in life and that throat swabs may be a good surrogate in clinically stable children with cystic fibrosis without chronic Pseudomonas aeruginosa infection in whom sputum sampling is often not feasible.
Celotno besedilo
Dostopno za:
DOBA, IZUM, KILJ, NUK, PILJ, PNG, SAZU, SIK, UILJ, UKNU, UL, UM, UPUK
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