AbstractActive teachers noted persistent problems in their classrooms, including low levels of student engagement and gaps in students’ use of evidence in forming arguments. Earth Science students provided written responses to two questions using the previously implemented Claim, Evidence, Reasoning (CER) framework. The first question was answered without a preceding discussion whereas the second question was answered following a discussion protocol—no discussion, discussion without Talk Science, and discussion with Talk Science. A ninth grade teacher more comprehensively implemented Talk Science by incorporating statements from all four goals whereas a seventh grade teacher did not. As a result, ninth grade students improved their use of evidence, reasoning, and content, but seventh graders did not show the same improvements. All students valued the discussion, but this study shows that Talk Science discussions can be used to improve students’ content knowledge and CER argumentation skills. 相似文献
Journal of Science Education and Technology - There is a need for developmentally appropriate Computational Thinking (CT) assessments that can be implemented in early childhood classrooms. We... 相似文献
Four groups of 16 rats were trained in a go-no go discrimination with symmetrical negative reinforcement (active-passive avoidance task). A 2 by 2 design was used with stimulus combinations as one factor [light-go, noise/light-no go, (L+ NL?) vs noise-go, light/noise-no go (N+ LN?)] and noise intensity as the other factor (90 dB, high, vs 70 dB, low). The two N+ LN? groups learned both active and passive avoidance responses much more rapidly than the L+ NL? groups. In later phases of training, high noise intensity facilitated passive avoidance in the L+ NL? condition and exerted a slight effect in the opposite direction in the other condition. While the differences in active avoidance learning were the same as in previous work on light and noise CSs, the interactions between stimuli of different modalities appeared to be more important than stimulus modality or stimulus intensity per se in determining rate of passive avoidance learning. 相似文献
Purpose: This paper examines if and how agricultural researchers and extension officers can see, understand and change processes that exclude some people and influence marginalisation.
Design and methodology: We used participatory action research (PAR) in a programme building sustainable farming practices for nutrition and income in Solomon Islands as our case study. Two qualitative PAR data streams were analysed: (i) documentation of community activities over three years including action planning, learning activities, training workshops, focus group discussions, key informant and informal interviews and (ii) documentation of the research teams’ own learning and reflection sessions.
Findings: Agricultural research and learning activities facilitated through PAR can help researchers and extension officers see, understand and challenge processes that cause social exclusion and marginalisation and lead to inequitable access to agricultural opportunities. A combination of (i) starting with a collective vision; (ii) facilitating systematic reflection exercises; and (iii) having locally tuned facilitators creating safe spaces; makes processes of social exclusion tangible, discussable and ultimately actionable, illustrating the potential of the research and extension processes to facilitate social change in real time.
Theoretical Implications: The paper makes a contribution to the growing body of theory and literature on innovation systems and people-centred approaches to agricultural development, by highlighting the facilitation challenges and opportunities that can create more learning focused and power-aware agricultural programming.
Practical Implications: Our approach, examined in this paper, can improve implementation of policies such as the Solomon Islands Agriculture and Livestock Sector Policy (2015–2019), which aims for active participation of women and youth in agricultural development.
Originality: Using a PAR approach to discover how agricultural research and extension activities can help transform the processes that cause social exclusion and create disadvantage and marginalisation. 相似文献
ABSTRACTThe Russian State Children's Library (RGDB) is the largest children's library in the world and has been serving as a cultural and educational center for more than 45 years. Important aspects of RGDB's activities are the development of electronic resources and setting up the library site for distant users. The National Electronic Children's Library in Russia is a specialized digital collection of publications about children and for children. This article focuses on these aspects and the future steps of the project. 相似文献
We explored the biomechanics of the 180° change-of-direction with the ball (half-turn) in soccer. We aimed at identifying movement strategies which enhance the players’ half-turning performance, by characterising technique kinematics and understanding the structure of biomechanical and anthropometrics variables. Ten Under-13 sub-elite male players were recorded with an optoelectronic motion analyser while performing a 5-m straight dribbling followed by a half-turn with the sole. Joints kinematics differences between faster and slower trials were found in support-side hip rotation, driving-side hip adduction, trunk flexion and rotation, and arms abduction. To unveil the data-set structure, a principal component (PC) analysis and a stepwise linear discriminant analysis were performed using 30 biomechanical parameters and four anthropometric variables for each trial. Seven retained PCs explained 79% of the overall variability, featuring combinations of original variables that help in understanding the factors facilitating fast half-turns: keeping short steps, minimising lateral and forward body movements, and centre-of-mass lowering, even with ample lower limbs ranges of motion (RoM); abducting the upper limbs while limiting trunk flexion and pelvic inclination RoM. Balance and task-constrained exercises may be proposed to improve this technique. Moreover, a quantitative knowledge of the movement structure could give coaches objective insights to better instruct young players. 相似文献
This paper describes two teacher training programmes offered through Anadolu University's Open Education Faculty (OEF). The first programme, which began in 1985‐1986, is a pre‐bachelor certificate for 130,000 primary school teachers. The second programme, started in 1990, offers a university degree to 54,000 secondary school teachers. Pedagogy, course materials, delivery systems and evaluation are discussed for both programmes.相似文献
This research was undertaken by five librarians from Deakin University Library Australia as part of a professional development project. The objective was to collect qualitative data on the perceptions of librarians by academics and library colleagues from Deakin University. The ways in which academics perceive librarians, as well as how other library staff perceive librarians, are relatively under-explored areas. This study investigates the topic through an analysis of drawing and other visual representations, based on a study design that applied a visual, arts-based methodological approach. Participants were invited to focus groups where they were provided with a variety of craft materials, asked to create a visual representation of liaison librarians, then discuss their artifact. The data consists of twenty-eight artifacts, which were content analyzed, and semi-structured interview recordings, which were transcribed and analyzed for themes. Participants expressed liaison librarians positively, as helpers and connectors, as a gateway to knowledge, with complex and varied roles, as trusted sources, and as relationship builders. By drawing attention to these themes, the participants highlighted that liaison librarians are invaluable to Deakin University. 相似文献
