7,626 research outputs found
Digital Collaboration and Classroom Practice: Educator Use of ARIS Connect
A major focus of the booming education technology sector is on products that aim to help teachers improve classroom practice. For their part, districts must figure out which of these resources will be most useful to schools. In New York City, the Department of Education developed its own Achievement Reporting and Innovation System (ARIS), which was rolled out in 2008. ARIS was an early effort at a system-wide data and teacher collaboration platform, and a major undertaking for the nation's largest school district. In 2011, the Research Alliance received a grant from the Spencer Foundation to investigate how this ambitious initiative played out in schools. Our first report focused on overall use and perceptions of ARIS. In the current phase of our study, we honed our focus onto ARIS Connect -- a component designed specifically to help educators improve their practice by sharing resources, posting questions, and giving one another feedback, both within schools and across the district. Our investigation sought to understand what educators thought of Connect, and whether, as its designers intended, Connect supported their ability to communicate with other educators and improve classroom practice. The study is based on two years of "clickstream" data, which tracks user visits to and navigation through ARIS. We also visited nine middle schools that recorded higher-than-average use of Connect, where we interviewed administrators and held focus groups with teachers. This report presents our findings, including insights on why educators did or did not use Connect; what might have made Connect more useful; and what external tools educators use for similar purposes
Particle displacements in the elastic deformation of amorphous materials: local fluctuations vs. non-affine field
We study the local disorder in the deformation of amorphous materials by
decomposing the particle displacements into a continuous, inhomogeneous field
and the corresponding fluctuations. We compare these fields to the commonly
used non-affine displacements in an elastically deformed 2D Lennard-Jones
glass. Unlike the non-affine field, the fluctuations are very localized, and
exhibit a much smaller (and system size independent) correlation length, on the
order of a particle diameter, supporting the applicability of the notion of
local "defects" to such materials. We propose a scalar "noise" field to
characterize the fluctuations, as an additional field for extended continuum
models, e.g., to describe the localized irreversible events observed during
plastic deformation.Comment: Minor corrections to match the published versio
Masculine domination and health: the uses of the body in middle class urban youth
Objectives: To analyze the discourse of Brazilian youth on representations of gender, their behavior and opinions on sexuality and the use of ones body, and the implications of these views on their physical and psychological health.\u2
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Liberation, Learning, and Love: The Story of Harlem Preparatory School, 1967-1974
“For we've done so much, with so little, for so long, that now we can do anything, with nothing at all.” This popular phrase at the independent tuition-free school called Harlem Prep in many ways reflected Central Harlem itself in the late-1960s. On one hand, decades of racial discrimination and unfulfilled promises had defined schooling in the neighborhood. There were no public high schools in the area, and talented youth were being pushed out of formal education. Conversely, there was a resilience and continued, centuries-long desire for educational equity. As a result—and buoyed by the dynamic political environment—a handful of leaders in Harlem decided to create a school, similar to other efforts in U.S. cities. However, unlike other emerging Black alternative schools, it would be different than its peers: it would be a multicultural school, and it would be for students who had been pushed out of education and onto the streets.
“Liberation, Learning, and Love” explores the unknown history of this school, Harlem Prep. Although firmly rooted in this era’s civil rights activism, Harlem Prep’s educational philosophy—its radical multiculturalism—was also distinct and innovative compared to other ideologies. The school’s leaders, teachers, and students were able to re-imagine education on a community-wide, institutional, and classroom level. Through its “unity in diversity” approach, Harlem Prep not only graduated and sent to college over 750 students, most of them previously out of school, but galvanized the notable Black community of Harlem. This project introduces multicultural education to the lexicon of Black alternative schools in the 1960s and 1970s, and reshapes how historians conceptualize equity, emancipatory education, and beyond.
Harlem Prep imagined a more loving, pluralistic world for its young people. Perhaps its story can inspire those of us who strive to create a similar future for our youth today
Youth Historians in Harlem: Exploring the Possibilities in Collaborative History Research Between Local Youth and Scholars
During 2014-15 academic year, high school students and Barry M. Goldenberg work together to study the history of education in Harlem
A survey of statistical network models
Networks are ubiquitous in science and have become a focal point for
discussion in everyday life. Formal statistical models for the analysis of
network data have emerged as a major topic of interest in diverse areas of
study, and most of these involve a form of graphical representation.
Probability models on graphs date back to 1959. Along with empirical studies in
social psychology and sociology from the 1960s, these early works generated an
active network community and a substantial literature in the 1970s. This effort
moved into the statistical literature in the late 1970s and 1980s, and the past
decade has seen a burgeoning network literature in statistical physics and
computer science. The growth of the World Wide Web and the emergence of online
networking communities such as Facebook, MySpace, and LinkedIn, and a host of
more specialized professional network communities has intensified interest in
the study of networks and network data. Our goal in this review is to provide
the reader with an entry point to this burgeoning literature. We begin with an
overview of the historical development of statistical network modeling and then
we introduce a number of examples that have been studied in the network
literature. Our subsequent discussion focuses on a number of prominent static
and dynamic network models and their interconnections. We emphasize formal
model descriptions, and pay special attention to the interpretation of
parameters and their estimation. We end with a description of some open
problems and challenges for machine learning and statistics.Comment: 96 pages, 14 figures, 333 reference
Sex workers perspectives on strategies to reduce sexual exploitation and HIV risk: a qualitative study in Tijuana, Mexico.
Globally, female sex workers are a population at greatly elevated risk of HIV infection, and the reasons for and context of sex industry involvement have key implications for HIV risk and prevention. Evidence suggests that experiences of sexual exploitation (i.e., forced/coerced sex exchange) contribute to health-related harms. However, public health interventions that address HIV vulnerability and sexual exploitation are lacking. Therefore, the objective of this study was to elicit recommendations for interventions to prevent sexual exploitation and reduce HIV risk from current female sex workers with a history of sexual exploitation or youth sex work. From 2010-2011, we conducted in-depth interviews with sex workers (n = 31) in Tijuana, Mexico who reported having previously experienced sexual exploitation or youth sex work. Participants recommended that interventions aim to (1) reduce susceptibility to sexual exploitation by providing social support and peer-based education; (2) mitigate harms by improving access to HIV prevention resources and psychological support, and reducing gender-based violence; and (3) provide opportunities to exit the sex industry via vocational supports and improved access to effective drug treatment. Structural interventions incorporating these strategies are recommended to reduce susceptibility to sexual exploitation and enhance capacities to prevent HIV infection among marginalized women and girls in Mexico and across international settings
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