Next generation crosscutting themes: Factors that contribute to students' understandings of size and scale          下载免费PDF全文

Katherine Chesnutt  Melissa Gail Jones  Rebecca Hite  Emily Cayton  Megan Ennes  Elysa N. Corin  Gina Childers 《科学教学研究杂志》2018,55(6):876-900

This study examined the degree to which individual differences in students' (N = 232) concepts of size and scale are explained by factors such as students' innate sense of number, out‐of‐school science experiences, exposure to size and scale instruction, gender identities, and racial/ethnic identities. There is increasing emphasis being placed on the use of crosscutting concepts to promote deep learning in science. A multiple linear regression indicated students' racial/ethnic identities, experiences with scale outside of school, and exposure to size and scale instruction significantly added to the prediction model. Results from this study can both inform the movement toward incorporating crosscutting concepts into pedagogy as well as inform educators, administrators, and other stakeholders of the factors that may shape students' understanding of the cross‐cutting concept of scale, proportion, and quantity.  相似文献   

Navigating nature,culture and education in contemporary botanic gardens     

Dawn L. Sanders  Amy E. Ryken  Katherine Stewart 《Environmental Education Research》2018,24(8):1077-1084

Increasingly, humans are an urban species prone to ‘plant blindness’. This demographic shift and situation has implications for both individual and collective perceptions of nature, as well as for addressing ‘ecophobia’ and encouraging ‘biophilia’ through education. Contemporary humanity occupies a world in which extensive physical change, both in the landscape and its related organisms, is occurring . Education-related debates on these issues links to the noted phenomenon of a ‘bubble wrap generation’ growing up within ‘nature-deficit’ childhoods in ‘megalopolitan cities’. Indeed, some commentators consider that 'nature has already disappeared' and exists only in protected spaces. Such perceptions have consequences for education in ‘presented world’ settings such as zoos, botanic gardens and natural history museums. This editorial, and its associated collection of papers, considers the critical relationships between nature, culture and education in contemporary botanic gardens and the ways in which visitors navigate their journeys, as demonstrated by research.  相似文献   

Using a Single-Item Physical Activity Measure to Describe and Validate Parents' Physical Activity Patterns     

Kyra Hamilton  Katherine M. White  Tom Cuddihy 《Research quarterly for exercise and sport》2013,84(2):340-345

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Youth Leaders' Perceptions of Commitment to a Responsibility-Based Physical Activity Program     

Tammy Schilling  Tom Martinek  Sarah Carson 《Research quarterly for exercise and sport》2013,84(2):48-60

This study extended Schilling's (2001) study by investigating program commitment among a larger (N = 12), older (M = 16.7 years), and more experienced (M = 5.96 years) sample of participants in the Project Effort Youth Leader Corps. Individual interviews elicited a greater number and specificity of themes. Program-related barriers included logistics, structure, and relationships, and personal-related barriers included perceived alternatives, personal characteristics, and “real-life” responsibilities. Similar to Schilling's (2001) earlier study, antecedents grouped under program environment, program structure, relationships, and personal characteristics. Participants also described outcomes in terms of behavior and emotional involvement but reported more themes related to leadership. Results are discussed in terms of consistencies and changes over time and implications for program development, expansion, and evaluation.  相似文献   

Age Differences in use of Strategy for Recall of Movement in a Large Scale Environment     

Jerry R. Thomas  Katherine T. Thomas  Amelia M. Lee  Edwyna Testerman  Madge Ashy 《Research quarterly for exercise and sport》2013,84(3):264-272

Abstract

In order to investigate how children remember distance (route) and location (landmark) information, two experiments were conducted in a large scale environment using jogging as the means of locomotion. In Experiment 1, thirty 4-year-old and thirty 9-year-old children were randomly assigned within age to three groups which were cued prior to the jog to remember the event, location of the event or distance to the event. Results indicated that older children reproduced the location and distance better than younger children. Cueing children to remember the location resulted in more accurate estimates than the other conditions. In Experiment 2, 5-year-old, 9-year-old, and 12-year-old children (24 children of each age) were randomly divided into step counting strategy and control groups, and asked to reproduce a criterion distance jogged. Results indicated that the three strategy groups and the 12-year-old controls estimated distance with similar accuracy, but the 9- and 5-year-old controls were different, as their error was inversely related to age.  相似文献   

Measuring Physical Activity in Preschoolers: Reliability and Validity of the System for Observing Fitness Instruction Time for Preschoolers (SOFIT-P)     

Shreela V. Sharma  Ru-Jye Chuang  Katherine Skala  Heather Atteberry 《Measurement in physical education and exercise science》2013,17(4):257-273

The purpose of this study is describe the initial feasibility, reliability, and validity of an instrument to measure physical activity in preschoolers using direct observation. The System for Observing Fitness Instruction Time for Preschoolers was developed and tested among 3- to 6-year-old children over fall 2008 for feasibility and reliability (Phase I, n = 67) and in fall 2009 for concurrent validity (Phase II, n = 27). Phase I showed that preschoolers spent >75% of their active time at preschool in light physical activity. The mean inter-observer agreements scores were ≥.75 for physical activity level and type. Correlation coefficients, measuring construct validity between the lesson context and physical activity types with and with the activity levels, were moderately strong. Phase II showed moderately strong correlations ranging from .50 to .54 between the System for Observing Fitness Instruction Time for Preschoolers and Actigraph accelerometers for physical activity levels. The System for Observing Fitness Instruction Time for Preschoolers shows promising initial results as a new method for measuring physical activity among preschoolers.  相似文献   

Techniques and considerations for determining isoinertial upper‐body power     

Michael J. Falvo  Brian K. Schilling  Lawrence W. Weiss 《Sports biomechanics / International Society of Biomechanics in Sports》2013,12(2):293-311

Power is an integral aspect of many sports. Although power output of the lower body is often measured during jumping and cycling movements, much less is known about power as pertains to the upper body musculature. Recently, isoinertial methods ‐ with constant gravitational load ‐ of power testing have become common, but little is known of the reliability and criterion validity of these tests as they pertain to sport performance. In addition, the varied methodology makes a lucid model more evasive. The aims of this review are to examine the various methods of assessing upper body power, to establish its role in predicting athletic performance, and to assess the body of literature that has assessed power output of the upper extremities by isoinertial methods. To our knowledge, only two studies on isoinertial upper‐body power have shown a direct correlation to sporting ability (Baker, 2001; Baker et al., 2001); therefore, many unanswered questions exist as to the efficacy of these tests as predictors of athletic ability or as a method to track athletes’ training over time. From this review we hope to allow the sport coach to assess the overall utility of these tests in terms of availability, safety and external validity.  相似文献   

Open learning: Politics or pedagogy?     

Viktor Jakupec  Katherine Nicoll 《Distance Education》1994,15(2):217-233

This paper is intended to contribute to the discussion of the meaning of open learning. The trend in higher education in Australia towards open learning is seen to be politically driven. We argue that the lack of educational debate over its meaning and implications allows us to presume that open learning is of social value, while in reality it may have the power to create anew binary divide in higher education or to re‐fashion entirely what constitutes knowledge within society. In order to ‘de‐reify’ the term we argue that a critical examination of its meaning, from a political as well as pedagogical perspective, is necessary.  相似文献   

Getting assessment right at the classroom level: using formative assessment for decision making     

Katherine A. Curry  Mwarumba Mwavita  Alexandra Holter  Ed Harris 《Educational Assessment, Evaluation and Accountability》2016,28(1):89-104

Current high-stakes accountability mandates emphasize data use for school improvement. However, teachers often lack training for effective data use, and data is often too far removed from students to actually influence instructional practice. This qualitative case study was designed to gain a better understanding of a district-wide, teacher-centered approach to data use. Findings suggest that when data is used to “inform” instruction rather than “evaluate” instruction, teachers begin to practice reflective teaching. A common language emerged across grade levels facilitating a collaborative approach to data use. Using the theoretical framework of Self-Determination Theory, we propose a data informed instructional theoretical model that stakeholders in K-12 education systems can use to enhance instruction and learning at the classroom level. This teacher-centered model is of particular importance as a framework to build collective capacity by meeting psychological needs of teachers of autonomy, competence, and relatedness.  相似文献   

Geeks,gamers, and girls: revealing diverse digital identities with membership categorisation analysis     

Katherine F. McLay 《Discourse: Studies in the Cultural Politics of Education》2019,40(6):946-961

ABSTRACT

The ‘digital imperative’ of contemporary education practice is without contention; however, much learning technology research has focused on pragmatic issues such as learning design, often founded on uncritically accepted claims about ‘digital natives’. This focus has come at the expense of learning theory. Alongside the scholarly voices calling for education research to redress this imbalance, there is increasing interest in the role played by technology not only in epistemological learning, but also in the ways technology is an identity issue. This paper explores how membership categorisation analysis opens up ways of understanding the role of technology for contemporary learner identities. Examination of student talk makes visible the diverse ways of being an iPad-using student, challenges widely-accepted constructions of contemporary learners as generationally uniform, and contributes to a more holistic conception of learning that accounts for the role played by technology in learning identity.  相似文献