排序方式： 共有33条查询结果，搜索用时 15 毫秒
1.
Limitations to teaching children 2 + 2 = 4: typical arithmetic problems can hinder learning of mathematical equivalence 总被引：1，自引：0，他引：1
McNeil NM 《Child development》2008,79(5):1524-1537
Do typical arithmetic problems hinder learning of mathematical equivalence? Second and third graders (7–9 years old; N= 80) received lessons on mathematical equivalence either with or without typical arithmetic problems (e.g., 15 + 13 = 28 vs. 28 = 28, respectively). Children then solved math equivalence problems (e.g., 3 + 9 + 5 = 6 + __), switched lesson conditions, and solved math equivalence problems again. Correct solutions were less common following instruction with typical arithmetic problems. In a supplemental experiment, fifth graders (10–11 years old; N= 19) gave fewer correct solutions after a brief intervention on mathematical equivalence that included typical arithmetic problems. Results suggest that learning is hindered when lessons activate inappropriate existing knowledge. 相似文献
2.
3.
4.
This paper is concerned with the twinning of sustainability with priorities of economic neoliberalization in education, and in particular via the mobility or diffusion of education policy. We discuss the literature on policy mobility as well as overview concerns regarding neoliberalism and education. The paper brings these analyses to bear in considering the uptake of sustainability in education policy. We ask to what extent sustainability as a vehicular idea may be twinning with processes of neoliberalization in education policy in ways that may undermine aspirations of, and action on, environmental sustainability. Toward the end of the paper, we draw on data from an empirical study to help elucidate how the analytic frames of policy mobility can inform our analyses of the potential concerns and possibilities of sustainability as a vehicular idea. In particular, we investigate how sustainability and related language have been adopted in the policies of Canadian post-secondary education institutions over time. The paper closes by suggesting the potential implications of the proceeding analyses for policymakers, practitioners, and researchers concerned with sustainability in education policy. 相似文献
5.
Previous work has presented both a theoretical foundation for designing terrain park jumps that control landing impact and computer software to accomplish this task. US ski resorts have been reluctant to adopt this more engineered approach to jump design, in part due to questions of feasibility. The present study demonstrates this feasibility. It describes the design, construction, measurement, and experimental testing of such a jump. It improves on the previous efforts with more complete instrumentation, a larger range of jump distances, and a new method for combining jumper- and board-mounted accelerometer data to estimate equivalent fall height, a measure of impact severity. It unequivocally demonstrates the efficacy of the engineering design approach, namely that it is possible and practical to design and build free style terrain park jumps with landing surface shapes that control for landing impact as predicted by the theory. 相似文献
6.
7.
McNeil NM Fyfe ER Petersen LA Dunwiddie AE Brletic-Shipley H 《Child development》2011,82(5):1620-1633
This study examined whether practice with arithmetic problems presented in a nontraditional problem format improves understanding of mathematical equivalence. Children (M age = 8;0; N = 90) were randomly assigned to practice addition in one of three conditions: (a) traditional, in which problems were presented in the traditional "operations on left side" format (e.g., 9 + 8 = 17); (b) nontraditional, in which problems were presented in a nontraditional format (e.g., 17 = 9 + 8); or (c) no extra practice. Children developed a better understanding of mathematical equivalence after receiving nontraditional practice than after receiving traditional practice or no extra practice. Results suggest that minor differences in early input can yield substantial differences in children's understanding of fundamental concepts. 相似文献
8.
Dynamical analysis of winter terrain park jumps 总被引：1，自引：1，他引：0
Jump features in winter terrain parks frequently pose a hazard to patrons and may represent a significant liability risk to
winter resorts. By performing a simple dynamic analysis of terrain park jumps, the relative risk to impact injuries for any
proposed jump design can be quantified thereby allowing terrain park designers to minimize the risk from this class of injury. 相似文献
9.
In this article, an inclusive treatment package for children with ADHD, The ADHD Classroom Kit (Kit), is described. Components of the Kit are categorized in three areas: consequences for appropriate behavior, consequences for inappropriate behavior, and peer-mediated interventions. The empirical rationale for each component of the Kit is discussed. Also, a case study of a 6-year-old girl (Carol) with reported disruptive behavior problems is presented as preliminary data supporting the Kit's effectiveness. An A-B-A reversal design was used in Carol's classroom. Mean frequencies of appropriate behavior were 61.3% (baseline), 78.5% (Kit), and 70.7% (reversal). In addition, mean frequencies of on-task behavior were 76.2% (baseline), 87.8% (Kit), and 82.5% (reversal). Implications for future research and practice with the Kit are addressed. © 1998 John Wiley & Sons, Inc. 相似文献
10.
Linda M. McNeil 《课程研究杂志》2013,45(4):313-328