Ampliando a brecha: A desigualdade na distribuição de recursos para a educação científica nos níveis K-12

Inequalities in educational opportunity are well documented. Regardless of the nature of the disadvantage—low income, underrepresented minority status, or prior achievement—students from backgrounds associated with a given disadvantage have less access to educational opportunities. In this article, we use data from the 2012 National Survey of Science and Mathematics Education to explore how resources are allocated for science instruction specifically. We focus on how three kinds of resources—well-prepared teachers, material resources, and instruction itself—are allocated to classes that are homogeneously grouped by prior achievement level. Regardless of the resource, we find that classes of students with low prior achievement (as perceived by their teachers) have less access. Some of the differences are striking, particularly regarding access to material resources, while others are more subtle. There is also evidence that some policies do not impact teachers equally. For example, time allowed for teacher professional development is perceived differently by teachers in terms of its impact depending on the achievement level of students in the class. The study supports the assertion that what is known about ability grouping in general applies in science instruction specifically. When students with low prior achievement are grouped together, their classes have less access to critical resources for science learning opportunities, potentially widening the gap between them and their higher-achieving peers.Las desigualdades en las oportunidades educativas están bien documentadas. Independientemente de la naturaleza de la desventaja -- baja renta, condición de minoría subrepresentada, o de logros anteriores-- estudiantes asociados con alguna condición de desventaja tienen menos acceso a oportunidades educativas. En este artículo, utilizamos datos de la Encuesta Nacional  de Ciencia y Educación Matemática de 2012 para explorar cómo se asignan los recursos para la enseñanza de las ciencias. Nos centramos en cómo tres tipos de recursos -maestros bien preparados, recursos materiales, y la instrucción en sí, se asignan a las clases que se agrupan homogéneamente por nivel de logro anterior. Independientemente del recurso, nos encontramos con que las clases de estudiantes con bajo rendimiento previo (según la percepción de sus maestros) tienen menos acceso. Algunas de las diferencias son sorprendentes, sobre todo con respecto al acceso a los recursos materiales, mientras que otras son más sutiles. También hay evidencia de que algunas políticas no afectan a los docentes por igual. Por ejemplo, el tiempo permitido para el desarrollo profesional de los docentes que se percibe de manera diferente por los profesores en términos de su impacto en función del nivel de logro de los estudiantes en la clase. El estudio apoya la afirmación de que lo que se sabe acerca de la capacidad de agrupación en general se aplica en la enseñanza de la ciencia en particular. Cuando los estudiantes con bajo rendimiento son agrupados, sus clases tienen menos acceso a los recursos críticos para ampliar las oportunidades de aprendizaje de ciencias, lo que podría incrementar la brecha entre ellos y sus compañeros de mayores logros educativos.As desigualdades de oportunidades educacionais estão bem documentadas. Independentemente da natureza da desvantagem - baixa renda, status de minoria sub-representada ou resultados anteriores - estudantes associados a uma condição de desvantagem têm menos acesso a oportunidades educacionais. Neste artigo, usamos dados da Pesquisa Nacional de Ciência e Educação Matemática de 2012 para explorar a forma como os recursos são alocados para a educação científica. Nós nos concentramos em três tipos de- recursos --professores bem preparados, recursos materiais, e da própria instrução, e como são atribuídos a classes agrupados por nível de resultados anteriores. Independentemente da aplicação, verificamos que as turmas de alunos com baixo aproveitamento anterior (pela percepção dos professores) têm menos acesso. Algumas das diferenças são marcantes, especialmente no que diz respeito ao acesso a recursos materiais, enquanto outros são mais sutis. Há também evidências de que algumas políticas não afetam docentes da mesma maneira. Por exemplo, o tempo permitido para o desenvolvimento profissional de professores é percebido de forma diferente pelos professores em termos do seu impacto sobre o nível de desempenho do aluno na sala de aula. O estudo apoia o que se sabe geralmente sobre as politicas de agrupamento aplicado no ensino da ciência em particular. Quando os alunos de baixo desempenho são agrupados, suas aulas têm menos acesso a recursos essenciais para aumentar as oportunidades de aprendizagem das ciências, o que poderia aumentar a distância entre eles e os seus pares mais alto nível de instrução

The Impact of a Multiyear Systemic Reform Effort on Rural Elementary School Students' Science Achievement

Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/96417/1/ssm12002.pd

The effect of professional development on elementary science teachers’ understanding, confidence, and classroom implementation of reform‐based science instruction

Through a randomized controlled trial, this mixed‐methods study evaluated changes in elementary science teachers’ understandings, confidence, and classroom implementation of problem‐based learning (PBL), inquiry, and nature of science (NOS) instruction following participation in a professional development (PD) as well as the components of the PD that teachers perceived facilitated these changes. Results indicated that following the PD, treatment teacher (n = 139) understandings of and confidence for teaching inquiry, NOS, and PBL were significantly greater than control teachers (n = 98) after controlling for preunderstandings and confidence. The effect sizes were large. Treatment teachers also incorporated significantly more PBL, inquiry, and NOS into their instruction. Modeling, microteaching with feedback and reflection, and in‐classroom coaching facilitated teachers’ confidence, understanding, and intention to implement the reform‐based practices they learned. Implications for the understanding of the relationship between knowledge, confidence, and practice as well as elementary science teacher PD design are discussed

Concurrent enrollment in lecture and laboratory enhances student performance and retention

Laboratories have been a cornerstone in teaching and learning across multiple scientific disciplines for more than 100 years. At the collegiate level, science laboratories and their corresponding lectures are often offered as separate courses, and students may not be required to concurrently enroll in both. In this study, we provide evidence that enrolling in an introductory laboratory concurrently with the corresponding lecture course enhances learning gains and retention in comparison to students who enroll in the lecture alone. We examined the impact of concurrent versus nonconcurrent enrollment on 9,438 students' withdrawal rates from and final grades in the general chemistry lecture at the University of Michigan at Ann Arbor using multiple linear and binary logistic regression analyses, respectively, at a significance level of 0.05. We found that concurrent enrollment in the lecture and laboratory positively impacts (1) the odds of retention in the lecture by 2.2 times on average and (2) final lecture grades by up to 0.19 grade points on a 4.0 scale for the lowest‐scoring students according to university‐level mathematics and chemistry placement exam scores. These data provide important results for consideration by curriculum advisors and course planners at universities that do not require concurrent enrollment in general chemistry as well as other science courses. In the face of current budget cuts that threaten to shorten or eliminate laboratory experiences altogether at multiple educational levels, this study demonstrates the value of laboratories in promoting science learning and retention. © 2012 Wiley Periodicals, Inc. J Res Sci Teach 49: 659–682, 2012Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/91231/1/21016_ftp.pd

Black Girls Speak STEM: Counterstories of Informal and Formal Learning Experiences

This study presents the interpretations and perceptions of Black girls who participated in I AM STEM – a community-based informal science, technology, engineering, and mathematics (STEM) program. Using narrative inquiry, participants generated detailed accounts of their informal and formal STEM learning experiences. Critical race methodology informed this research to portray the dynamic and complex experiences of girls of color, whose stories have historically been silenced and misrepresented. The data sources for this qualitative study included individual interviews, student reflection journals, samples of student work, and researcher memos, which were triangulated to produce six robust counterstories. Excerpts of the counterstories are presented in this article. The major findings of this research revealed that I AM STEM ignited an interest in STEM learning through field trips and direct engagement in scientific phenomena that allowed the girls to become agentic in continuing their engagement in STEM activities throughout the year. This call to awaken the voices of Black girls to speak casts light on their experiences and challenges as STEM learners ⎯ from their perspectives. The findings confirm that when credence and counterspaces are given to Black girls, they are poised to reveal their luster toward STEM learning. This study provided a space for Black girls to reflect on their STEM learning experiences, formulate new understandings, and make connections between the informal and formal learning environments within the context of their everyday lives, thus offering a more holistic approach to STEM learning that occurs across settings and over a lifetime

CERTAIN IDEALS IN ALGEBRAS OF EXTENDED REAL-VALUED FUNCTIONS

Abstract not availabl

Science Education in the United States by

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