This study investigated the effects of a multi-pronged approach of increasing the nature of science (NOS) understandings of high school science students. The participants consist of 63 high school students: 31 in the intervention group and 32 in the control group. Explicit/reflective NOS instruction was imbedded within authentic inquiry experiences and supported by online discussions. The students in the intervention group were prompted to engage in various discussions focusing on essential tenets of NOS in an online environment that assured student confidentiality. NOS views were assessed through multiple data sources including pre- and post-intervention questionnaires as well as students’ responses to online discussion prompts. Results show that the instructional intervention used in this study which combined explicit/reflective NOS instruction with intense inquiry exposure along with ample reflective opportunities in an anonymous online discussion format led to positive learning gains in participants’ understanding the NOS aspects assessed. Implications for enhancing data collection with high school students and for promising professional development opportunities for science educators are discussed. 相似文献
This review presents a conceptual framework and supporting evidence that links impaired motor control after sport-related concussion (SRC) to increased risk for musculoskeletal injury. Multiple studies have found that athletes who are post-SRC have higher risk for musculoskeletal injury compared to their counterparts. A small body of research suggests that impairments in motor control are associated with musculoskeletal injury risk. Motor control involves the perception and processing of sensory information and subsequent coordination of motor output within the central nervous system to perform a motor task. Motor control is inclusive of motor planning and motor learning. If sensory information is not accurately perceived or there is interference with sensory information processing and cognition, motor function will be altered, and an athlete may become vulnerable to injury during sport participation. Athletes with SRC show neuroanatomic and neurophysiological changes relevant to motor control even after meeting return to sport criteria, including a normal neurological examination, resolution of symptoms, and return to baseline function on traditional concussion testing. In conjunction, altered motor function is demonstrated after SRC in muscle activation and force production, movement patterns, balance/postural stability, and motor task performance, especially performance of a motor task paired with a cognitive task (i.e., dual-task condition). The clinical implications of this conceptual framework include a need to intentionally address motor control impairments after SRC to mitigate musculoskeletal injury risk and to monitor motor control as the athlete progresses through the return to sport continuum. 相似文献
Academic libraries are spending considerable time and study on redesigning spaces. The use of technology is often an important part of these redesigned spaces. The space redesign goals at F.D. Bluford Library focus on creating open, activity-promoting, colorful spaces that are designed to be attractive to students. The goals also focus on implementing hybrid spaces that allow students to work alone or in groups, with support for mobile technologies like laptops or tablets. The space redesign goals focus on upgrading the quality of desktops available but reducing the number of desktops. This study examines the question “Does our library renovation significantly change computer use in the redesigned area?” Key findings include that, in defiance of expectations, there is no significant decrease in desktop usage despite the decreased number of computers. However, findings show there is a significant difference in tablet use, despite tablet-friendly spaces and charging options. Surprisingly, our students use fewer tablets. Laptop usage shows no significant difference. In summary, our research shows desktop computing—especially high-quality desktop computing—appears to still have a role in academic libraries even in the mobile technology age. 相似文献
International Journal of Science and Mathematics Education - There is increasing recognition of the multimodal representational nature of science discovery practices and the roles of multiple and... 相似文献
This study sought to discover some of the causes of initial interset in and atrition from the natural sciences and engineering
among the students (N=5320) who entered four highly selective institutions in 1988, with particular attention to possible special causes for the
disproportionate attrition of women from science. Though a smaller proportion of women (35 percent) than men (49 percent)
were initially interested in science, gender added little to the prediction of such initial choice when preadmission measures
of developed abilities were taken into account in regression analysis. Of the group of 2,276 students initially interested
in science, 40 percent did not finally concentrate in science, and smaller proportions of women (48 percent) than of men (66
percent) persisted. The most significant cognitive, factor predicting these losses was low grades earned in science courses
taken during the first two years of study. With grades held equal, gender was not a significant predictor of persistence in
engineering and biology; gender added strongly to grades, however, as a factor associated with unusually large losses of women
from a category that included the physical sciences and mathematics. Responses to a questionnaire administered in the fall
of 1991 showed that science majors regarded their instruction as too competitive, with too few opportunities to ask questions,
taught by professors who were relatively unresponsive, not dedicated, and not motivating. Students who defected from science
did so largely because of the attraction of other fields, but many shared the criticism of overcompetitiveness and inferior
instruction, along with the view that the work was too difficult. Several items were about elements of classroom instruction
and atmosphere thought to be especially difficult for women (i.e., the chilly climate), but except for perceived competitiveness,
women did not rate their classroom experiences as being more unpleasant than did men.
This research was supported by grants from the Alfred P. Sloan Foundation and the National Science Foundation. 相似文献
Traditionally colleges have relied on standalone non-credit-bearing developmental education (DE) to support students academically and ensure readiness for college-level courses. As emerging evidence has raised concerns about the effectiveness of DE courses, colleges and states have been experimenting with approaches that place students into credit-bearing coursework more quickly. To better understand which types of students might be most likely to benefit from being placed into college-level math coursework, this study examines heterogeneity in the causal effects of placement into college-level courses using a regression discontinuity design and administrative data from the state of Texas. We focus on student characteristics that are related to academic preparation or might signal a student’s likelihood of success or need for additional support and might therefore be factors considered for placement into college-level courses under “holistic advising” or “multiple measures” initiatives. We find heterogeneity in outcomes for many of the measures we examined. Students who declared an academic major designation, had bachelor’s degree aspirations, tested below college readiness on multiple subjects, were designated as Limited English Proficiency (LEP), and/or were economically disadvantaged status were more likely to benefit from placement into college-level math. Part-time enrollment or being over the age of 21 were associated with reduced benefits from placement into college-level math. We do not find any heterogeneity in outcomes for our high school achievement measure, three or more years of math taken in high school.
A representative sample of undergraduate and postgraduate international students at a large Australian university (n=979, 64% females) completed a mail-back survey of their health and wellbeing. Most students evaluated their current and previous
physical and mental health positively. Health-related risk practices such as unprotected sexual activity, drug use, smoking
and gambling, were reported by few students. There was little change in health or risk behaviours since coming to Australia
and few changes that were health compromising. Few demographic or situational variables, including age and gender, had a significant
impact on students' wellbeing. This study has revealed that few international students find the experience of studying in
an overseas country detrimental to their wellbeing. Nevertheless, for those students who encounter difficulties or are at
increased risk of health-compromising outcomes, we must ensure better delivery of health promotion education, and access to,
and use of, available counselling and health services.