Extending the purposes of science education: addressing violence within socio-economic disadvantaged communities     

Carolina Castano 《Cultural Studies of Science Education》2012,7(3):703-718

Current discourses about science education show a wide concern towards humanisation and a more socio-cultural perspective of school science. They suggest that science education can serve diverse purposes and be responsive to social and environmental situations we currently face. However, these discourses and social approaches to science education tend to focus on global issues. They do not respond to the immediate needs and local context of some communities. I discuss in this paper why the purposes of science education need to be extended to respond to the local issue of violence. For this, I present a case study with a group of 38 students from a poor population in Bogotá, Colombia, located in one of the suburbs with highest levels of crime in the city. I examine the ways that science education contributes to and embodies its own forms of violence and explore how a new approach to science education could contribute to break the cycle of violence.  相似文献   

Employing the Urban Education Typology Through a Critical Race Spatial Analysis     

Williams  John A.  James  Marlon  Beltrán  Ana Carolina Díaz  Young  Jemimah  Neshyba  Mónica Vásquez  Ogletree  Quinita 《The Urban Review》2022,54(3):450-480

The urban education typology put forth by Milner (Urban Educ 47(3):556–561, 2012) offered a conceptual demarcation of three different, yet interconnected types of urban school districts (i.e., urban intensive, urban emergent, and urban characteristic). Nearly one decade after Milner’s seminal urban education typology, few empirical or conceptual articles have operationalized this typology across multiple school districts in one region. We enter this scholarly space to reaffirm the typology and its utility in identifying the conditions that create varying educational inequities and transformative opportunities. Through a critical race spatial analysis, we attempt to capture, crystalize, and expand Milner's typology by examining a multitude of data points and intentionally drawing on geospatial data from five linked school districts in Harris County, Texas. Our findings, as viewed through lenses of Critical Race Theory and the Chicana Feminist conceptual framework known as borderlands, accentuate two major implications; (1) while there are physical spaces of restriction inside and around schools and school districts, regularly school districts contend with identical challenges despite their urban education typology categorical classification; and (2) when employing the urban education typology, it is imperative that researchers deeply contextualize the physical, temporal, historical, social, and racialized spaces that schools and school districts exist in.

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Conceptual Demand of Practical Work in Science Curricula     

Sílvia Ferreira  Ana M. Morais 《Research in Science Education》2014,44(1):53-80

This article addresses the issue of the level of complexity of practical work in science curricula and is focused on the discipline of Biology and Geology at high school. The level of complexity is seen in terms of the emphasis on and types of practical work and, most importantly, in terms of its level of conceptual demand as given by the complexity of scientific knowledge, the degree of inter-relation between knowledges, and the complexity of cognitive skills. The study also analyzes recontextualizing processes that may occur within the official recontextualizing field. The study is psychologically and sociologically grounded, particularly on Bernstein’s theory of pedagogic discourse. It uses a mixed methodology. The results show that practical work is poorly represented in the curriculum, particularly in the case of laboratory work. The level of conceptual demand of practical work varies according to the text under analysis, between the two subjects Biology and Geology, and, within each of them, between general and specific guidelines. Aspects studied are not clearly explicated to curriculum receivers (teachers and textbooks authors). The meaning of these findings is discussed in the article. In methodological terms, the study explores assumptions used in the analysis of the level of conceptual demand and presents innovative instruments constructed for developing this analysis.  相似文献   

Narratives of adolescent girls journeying via feminist participatory action research through the aftermath of divorce     

Carolina S. Botha  Johnnie Hay 《Africa Education Review》2016,13(2):165-180

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Do executive functions contribute to writing quality in beginning writers? A longitudinal study with second graders     

Cordeiro  Carolina  Limpo  Teresa  Olive  Thierry  Castro  São Luís 《Reading and writing》2020,33(4):813-833

Reading and Writing - Writing is an important activity that involves many demanding processes. Given the complexity and goal-directed nature of writing, this activity is heavily dependent on...  相似文献   

Good CoPs and bad CoPs: facilitating reform in first-year assessment via a Community of Practice     

Catherine Howlett  James Michael Arthur  Jo Anne Ferreira 《高等教育研究与发展》2016,35(4):741-754

The idea and implementation of learning communities are gaining favour in higher education institutions. In particular, there are a number of successful examples to emerge of the application of the Community of Practice (CoP) framework proposed by Wenger [(1998). Communities of practice: Learning, meaning, and identity. Cambridge, MA: Harvard Business School Press] for fostering a learning environment for academics around their teaching practice. In this paper, we describe and reflect on the efficacy of a CoP process that was implemented within our university. The purpose of this CoP was to provide a space for academics to focus on assessment practices for first-year courses and identify opportunities for professional development in this area. For a variety of reasons detailed in the paper, the efficacy of this CoP was limited, and we conclude that in the current higher education environment in Australia, success with CoP approaches to improve learning and teaching outcomes may prove limited.  相似文献   

The impact of individual consultation on student ratings of teaching     

Sergio Piccinin  Carolina Cristi  Marcia McCoy 《International Journal for Academic Development》2013,18(2):75-88

Abstract

The present study addressed the impact of individual consultation on teaching improvement as measured by changes in student ratings. Subjects included 91 professors who presented naturally for individual consultation services over a seven‐year period at the teaching centre of a Canadian university. Interventions by the consultant fell into three categories: 1) Feedback‐Consultation, 2) Feedback‐Consultation‐Class Observation, and 3) Feedback‐Consultation‐Class Observation and Student Consultation. End of term student ratings for the course that was the subject of the consultation were compared with student ratings for the same course taught between one and three years prior to the consultation service, and for the same course taught between one to three years following consultation. The results showed that, overall, consultation was effective in improving the quality of the consultees’ teaching, as evidenced by an increase in mean student ratings of instruction. This effect persisted post consultation. Not all intervention groups, however, showed the same pattern of results. Change was evident immediately after the intervention except in the case of brief consultation, although follow‐up data showed improved teaching for the latter group. Control data provided evidence that the change in student ratings post consultation could reasonably be attributed to consultation effects.  相似文献   

Reading together in the classroom. A study of the difference between teacher and student interactions and the requirements of the Ministry of Education in Chile / Lectura conjunta en el aula. Un estudio sobre la distancia entre la interacción profesores alumnos y las prescripciones del Ministerio de Educación Chileno     

Carolina Iturra  Javier Rosales 《Cultura y Educación》2013,25(1):64-92

Abstract

In this article we describe the reading comprehension teaching practices of three Chilean teachers, to contrast them with the proposed guidelines from the Chilean Ministry of Education. To do this, we have analysed what contexts of interaction were created in the classroom and which reading processes were promoted by the questions the students were asked. The results show how the teachers’ practices were closer to the ministerial guidelines when they were asked to create specific contexts of interaction, but deviated from these guidelines when the objective was to promote a reflective and critical understanding of the texts.  相似文献   

Validating chemical and structural changes in painting materials by principal component analysis of spectroscopic data using internal mineral standards     

Julia Romero-Pastor  Carolina Cardell  África Yebra-Rodríguez  Alejandro B. Rodríguez-Navarro 《Journal of Cultural Heritage》2013,14(6):509-514

This work shows the capability of principal component analysis (PCA) to detect molecular, chemical and mineralogical changes in historic painting materials subjected to a thermal ageing test (< 250 °C). To simulate the heat-induced alterations an ageing accelerated process was performed on two sets of samples containing two mineral phases (hydroxyapatite and quartz) and two organic compounds (collagen and albumin). The chosen minerals behaved as internal standards during the tests since they are stable and chemically inert at the tested temperatures. Raman microscopy (RM) was applied to characterise one set of samples made of bone, containing ca. 70% hydroxyapatite and 30% collagen. Attenuated total reflectance-Fourier transform infrared (ATR-FTIR) spectroscopy was used to study the other set of samples made of four different quartz/albumin mixtures with quartz contents of 30%, 50%, 70% and 90% (w/w). The aim was to identify the ideal proportion of internal standard to be validated by ATR-FTIR and PCA, determined to be 70%. PCA analyses detected changes in the molecular structures of the organic components while the internal mineral standard remained stable. Moreover, the internal standard IR/Raman bands were constant during the tests and confirmed that the results of PCA analyses were independent of instrumental and technical factors, as well as sample collecting and handling. This demonstrates the potential benefits of our approach to study historical painting materials, which have suffered any type of heat-induced alteration.  相似文献   

A comparison of time-motion and technical–tactical variables between age groups of female judo matches     

Bianca Miarka  Rubiana Cury  Ricardo Julianetti  Rafael Battazza  Ursula Ferreira Julio  Michel Calmet 《Journal of sports sciences》2013,31(16):1529-1538

Abstract

The aim of the study was to verify differences between age groups of female judo matches in time-motion and technical–tactical analysis. The sample was composed of pre-cadet (13–14 years, n = 148), cadet (15–16 years, n = 228), junior (17–19 years, n = 104) and senior (>20 years, n = 237) groups. The time-motion indicators consisted of total combat time, standing combat time, displacement without contact, gripping time, total time of techniques, groundwork combat time and pause time, per match and by each combat/pause cycle. Technical and tactical variables were also collected. The one-way analysis of variance and a post hoc test were conducted, P ≤ 0.05. Cadets, with a median of 7 (2, 12), had a number of combat/pause cycles different from junior, with 3 (1, 8.5). Regarding time-motion per match and per cycle, senior had longer total combat time, standing combat time and gripping time than other groups. Senior presented lower frequency of leg techniques than pre-cadet, cadet and junior. Time-motion and technical–tactical variables effects in female judo athletes emphasise the difference between seniors and other groups.  相似文献