Not so altruistic? Some keys elements about the knowledge,perception and participation of university students in NGOs / ¿No tan altruistas? Algunas claves sobre el conocimiento,la percepción y la participación del estudiantado universitario en ONG

This article analyses the knowledge, perception and participation of university students in NGOs. The social group analysed has a very positive perception towards volunteering as well as a life situation and preparation that, in theory, facilitates their participation in such activities. However, their effective participation is much lower than the levels shown by potential volunteers who would like to participate. We have identified two elements that stand between the possibility and reality: the lack of information and the time available. In this sense, universities appear as institutions capable of connecting the needs and demands of NGOs and students.     

A school-based motivational intervention to promote physical activity from a self-determination theory perspective

The authors analyzed the effects of a multidimensional intervention to promote physical activity (PA) in school, based on self-determination theory. The study involved 88 students, between 14 and 17 years old, who were divided into a control group (n = 59) and an experimental group (n = 29). In the experimental group, a 6-month intervention was conducted, applying a teaching unit of fitness and health in physical education (PE) classes, an extracurricular program of healthy PA, and meetings with families. Questionnaires were administered to measure different motivational variables and PA levels at four time points. Significant differences were found in favor of the experimental group in parental and peer autonomy support; integrated regulation in PE; autonomy, intrinsic, and identified regulation in leisure-time PA; moderate, hard, and very hard PA; and physical self-worth. Motivational effects were maintained over time but the effects on PA levels disappeared at 6 months.     

Student-initiated Facebook sites: nurturing personal learning environments or a place for the disenfranchised?

ABSTRACT

Facebook is social media that is ubiquitously used in higher education contexts by both staff and students. It provides a platform for student networking and expression. The authors illuminate how pre-service teachers in an Australian university, undertaking undergraduate units, use Facebook as a student-initiated social media community. Although an increasing number of research studies have investigated student use of social media in higher education, this is an under-theorised area. In particular, little has been written about the student-initiated use of Facebook as a commentary on the activities running simultaneously to formal online learning programmes in universities. Data drawn from 15 semi-structured interviews support an investigation into student Facebook use. Findings highlight that student-driven Facebook sites have a range of purposes and offer ever-present access to a relational community online, although this can sometimes be problematic. When emotional support is not forthcoming from academics or there is disenfranchisement in formal learning spaces, membership in student-initiated learning communities can afford immediacy, informality, influence and shared emotional connections.     

Conceptual profile of chemistry: a framework for enriching thinking and action in chemistry education

Understanding the nature of chemical thinking and action, as well as their application and impact on our world should be central goals of chemistry education at all educational levels. However, traditional school chemistry is still mostly focused on having students learn the body of declarative knowledge built over the years in the discipline. Achieving changes in curriculum and teaching practices in this context remains a challenging task. Studies in the history and philosophy of the discipline suggest that chemistry has unique characteristics that need to be recognised and considered in chemistry education. Many of these studies point to a pluralism in the discipline, and in the understanding of and about chemistry, that should be characterised and incorporated into our educational models. In this essay, we have attempted to build such a characterisation using conceptual profiles theory to propose a framework that can be used to enrich and support the thinking and action of chemistry teachers at all educational levels.     

Psycho-physiological response in an automatic parachute jump

Parachute jump is an extreme activity that elicits an intense stress response that affects jumpers’ body systems being able to put them at risk. The present research analysed modifications in blood oxygen saturation (BOS), heart rate (HR), cortisol, glucose, lactate, creatine kinase (CK), muscles strength, cortical arousal, autonomic modulation, pistol magazine reload time (PMRT) and state anxiety before and after an automatic open parachute jump in 38 male Spanish soldiers (25.6 ± 5.9 years). A MANOVA with samples as a fixed factor and Effect Size (ES) were conducted. MANOVA showed (Wilks lambda = .225; F = 5.980; P = .000) a significantly increase in cortisol (6.2 ± 3.2 vs. 8.2 ± 4.3 nmol/l; P = .025; ES = .47), HR (75.0 ± 14.6 vs. 87.4 ± 17.3 bpm; P = .004; ES = .72), lactate (1.8 ± 1.2 vs. 4.4 ± 2.2 mmol · l^?1; P = .002; ES = 1.18), sympathetic nervous system and leg strength manifestation after the parachute jump. By contrary BOS, PMRT (55.6 ± 27.6 vs. 48.0 ± 16.7 s; P = .021; ES = .46) and somatic anxiety (SA), evaluated by CSAI2R questionnaire, decreased. An automatic parachute jump increased physiological and cortical response and decreased SA of participants. This stress response can affect the jumpers’ abilities and allow us to have a better understanding of the organism stress response and to improve training for both military and sport parachute jumps.     

Arithmetic word problem solving. Are authentic word problems easier to solve than standard ones? / Resolución de problemas aritméticos verbales. ¿Se resuelven mejor si se presentan como problemas auténticos?

This study analysed the effectiveness of presenting mathematical problems as ‘authentic’, which simulated the main aspects of situations in which students are usually involved. To do so, four independent variables were considered: level of mathematical difficulty (easy or difficult); rewording: standard problems (similar to those presented in textbooks), authentic and containing irrelevant situational information; mathematical ability (measured by means of the BADyG test); and reading comprehension level (measured with the comprehension task from the PROLEC-R test). The dependent measure was the success rate of a sample of 156 primary education children (grades four, five and six) in solving each kind of word problem. The results showed that the authentic versions of difficult problems were solved more successfully than other versions by students with high levels of mathematical aptitude and reading comprehension. That means that authentic wording is useful when children are able to understand the added information and have the mathematical knowledge necessary to interpret it.     

Gender discourse about an ethic of care: nursery schoolteachers' perspectives

In this paper we will show some of the results of research which took place in the Principality of Asturias (Spain). Its purpose was finding out the gender discourses used by nursery teachers. Although we will not provide an exhaustive list of all the conclusions reached so far, we will put forward one of the aspects which has been developed throughout the investigation; that is, we will discuss some of our observations and hypotheses on the differences observed by the teachers in boys and girls' caring and supporting behaviours. In order to do so, we focus on the type of discourse related to the ethic of care. We consider it a tool which allows teachers to build a type of narrative in which boys and girls are presented as opposites, relational and different from one another.     

El profesor como práctico reflexivo en una cultura de colaboración

The aim was the reconstruction of a school curriculum in reflective teaching situations within a co‐operative culture. Two working assumptions were considered: (a) teacher development was based on teacher thinking and (b) school organisation followed a co‐operative culture paradigm. The process features were: (a) university team consisted of external advisers; (b) school curriculum and classroom instruction were reviewed by school teachers; (c) case study as a research approach; (d) ethnographic techniques to collect data; (e) data analysis by a computer program; (f) teachers’ reflective cycle to reconstruct practice; and (g) teachers’ portfolios: narrative vignettes, etc. Findings showed: (a) a collaborative process school‐university; (b) teachers’ thinking and attitudinal change; (c) mobilisation of teachers’ talents and values to work together: (i) teacher dyads to reflect on teaching; (ii) advisers’ writing narrative vignettes; (Hi) collegial coaching; and (iv) curriculum materials designed by teachers. Two conclusions can be accepted: (a) teachers’ pedagogical practical knowledge showed diversity of their implicit theories to design action; and (b) teachers’ grounded theory confirmed that the educational action was based on a co‐operative and reflective culture.     

On Cognitive Constraints and Learning Progressions: The case of “structure of matter”

Based on the analysis of available research on students’ alternative conceptions about the particulate nature of matter, we identified basic implicit assumptions that seem to constrain students’ ideas and reasoning on this topic at various learning stages. Although many of these assumptions are interrelated, some of them seem to change or lose/gain strength independently from one another. Overlapping or competing presuppositions about the structure, properties, and dynamics of matter may be able to coexist at any given level, particularly at intermediate stages of expertise. Our results allowed us to suggest common paths in the transition from naïve through novice to expert along relevant dimensions related to the structure and properties of chemical substances. The identification of these cognitive constraints provides a useful framework that educators can use to better understand and even predict many of their students’ learning difficulties. It can also assist in the design and organisation of learning experiences and assessment tools that recognise and take advantage of the most likely trajectories towards expertise (learning progressions) followed by many students.     

TENSIONS IN THE THIRD SPACE: LOCATING RELEVANCY IN PRESERVICE SCIENCE TEACHER PREPARATION

In this paper, we build on growing conversations centered around indigenous knowledge and its parity with various ways of knowing nature including traditional ecological knowledge, indigenous ways of living in nature, a Japanese way of knowing seigo-shizen, and Eurocentric sciences. We situate our discussion in Philippine postcolonial realities, where categorical boundaries are blurred, and any attempt to create culturally relevant preservice science teacher preparation will create confusions and tensions between/among/within abovementioned discourses. The Philippines is a highly colonized country—physically, for more than 300 hundred years, and mentally, after our colonizers have long gone. The marks of colonization are still present in our consciousness, in our current local knowledge, and in our ways of living with nature. In the attempt to create a “third space” for culturally relevant science teacher preparation, tensions are highlighted and categorical boundaries are troubled. Where is science? Which one is indigenous or neo-indigenous? Which one is Filipino? Which one is foreign? Which one is ours? Which one is borrowed? These tensions and insights are highlighted through analysis of narratives drawn from interviews with and written outputs of prospective science teachers, as they attempted to make sense of the local knowledge of residents of a rural coastal village in the Philippines during Community Immersion, a community-centered, early field experience in science teacher preparation.