Effects of Emphasizing Hypothetico‐Predictive Reasoning within the Science Learning Cycle on High School Student's Process Skills and Conceptual Understandings in Biology     

Derrick R. Lavoie 《科学教学研究杂志》1999,36(10):1127-1147

This study examined the effects of adding a prediction/discussion phase at the beginning of a three‐phase learning cycle involving exploration, term introduction, and concept application. The added phase required high‐school biology students to individually write out predictions with explanatory hypotheses concerning concepts in genetics, homeostasis, ecosystems, and natural selection. This was followed by interactive debate of predictions and reasons. Data sources included questionnaires, field observations, teacher/researcher daily log reports, and a battery of tests to assess cognitive changes. Hypothetico‐predictive reasoning and logical argumentation served as cognitive‐development processes which prompted students to construct and deconstructed their procedural and declarative knowledge. The prediction/discussion‐based learning cycle instruction, when compared with traditional learning cycle instruction, produced significant gains relative to the use of process skills, logical‐thinking skills, science concepts, and scientific attitudes. Guidelines were generated for developing, teaching, and evaluating prediction/discussion based learning cycles. © 1999 John Wiley & Sons, Inc. J Res Sci Teach 36: 1127–1147, 1999  相似文献   

Interpretation of the PPVT-R: A pure measure of verbal comprehension?     

Constance L. Hollinger  Patricia A. Sarvis 《Psychology in the schools》1984,21(1):34-41

The present study examined WISC-R scale, factor, and subtest scores in relationship to PPVT-R standard scores in order to test hypotheses regarding abilities measured by the PPVT-R. For a naturally occurring sample of rural children referred for assessment (N = 51), the results of direct and stepwise regression analyses indicated that, while verbal comprehension abilities may contribute most to successful performance on the PPVT-R, perceptual organization abilities also play a significant though less substantial role in the child's performance on the PPVT-R. While Vocabulary scaled scores accounted for 63% of the variance, addition of Object Assembly and Picture Arrangement scaled scores accounted for an additional 11% of the observed variance in PPVT-R performance. Students for whom the PPVT-R overestimated WISC-R Full Scale performance differed significantly from students for whom the PPVT-R underestimated their WISC-R performance only on the WISC-R Arithmetic subtest. Implications for interpretation of the PPVT-R are discussed.  相似文献   

Following up performance lessons from the field     

Constance Newman 《Performance Improvement》2002,41(1):11-18

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Metabolic cost of stride rate, resistance, and combined use of arms and legs on the elliptical trainer     

Mier CM  Feito Y 《Research quarterly for exercise and sport》2006,77(4):507-513

We measured the effects of stride rate, resistance, and combined arm-leg use on energy expenditure during elliptical trainer exercise and assessed the accuracy of the manufacturer's energy expenditure calculations. Twenty-six men and women (M age = 29 years, SD = 8; M body weight = 73. 0 kg, SD = 15.2) participated. Twenty-two participants performed two tests, one without the arm poles (leg-only) and the other with arm poles (combined arm-leg). The other 4 participants performed one test without the arm poles. Both tests consisted of six 5-min stages (two stride rates, 110 and 134 stridesmin-1, and three resistance settings: 2, 5, and 8). Steady-state oxygen uptake (VO2), minute ventilation (VE), heart rate (HR) and rating of perceived exertion (RPE) were measured. Repeated measures analysis of variance determined higher (p <. 001) VO2, VE, and RPE, but not HR, during combined arm-leg versus leg-only exercise at any given intensity. Increases in stride rate and resistance increased VO2, VE, RPE, and HR with the greatest effect on VE and HR from Levels 5 to 8. The manufacturer's calculated energy expenditure was overestimated during both tests. Although the oxygen cost for elliptical trainer exercise was calculated to be approximately 0.1 mlxkg(-1) per stride and 0.7 mlxkg(-1) min-1 per resistance level, VO2 varied widely among individuals, possibly due to differences in experience using the elliptical trainer gender, and body composition. The elliptical trainer offers (a) a variety of intensities appropriate for most individuals and (b) both arm and leg exercise. Due to the wide variability in VO2, predicting the metabolic cost during elliptical trainer exercise for an individual is not appropriate.  相似文献   

The daily grind: Monastic milling in Britain     

Constance H. Berman 《Metascience》2015,24(3):417-419

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The Library of the Royal Society of Physicians in Budapest becomes today's Semmelweis Medical History Library     

Katalin Kaproncszay  László András Magyar  Constance E Putnam 《Journal of the Medical Library Association》2011,99(1):31-39

Objectives:

The 170-year history of the library of the Royal Society of Medicine in Budapest illustrates both that political and cultural context matter and that “medical” libraries, if they survive, in due course become primarily “medical history” libraries.

Methods:

Two of the authors are on the staff of the Semmelweis Medical History Library; the third is a US scholar who makes frequent use of the library. Together, they avail themselves of archival and published materials—and personal experience with the collection—to establish the context that produced the original library, trace its evolution, and describe its present-day incarnation.

Results:

A tale of transformation emerges that reflects how collections are likely to change. The authors present events and individuals in the life of the Royal Society''s library and paint a picture of the value of today''s Semmelweis Medical History Library. Unique treasures in the collection are described.

Conclusion:

The story told here is of how a particular nineteenth-century library became a twenty-first–century institution. The authors establish its peculiarly Hungarian context and potential value to librarians and historians from outside Hungary. The overall message is that general medical libraries everywhere are perforce likely to become medical historical libraries over time.

Highlights

• Context matters. The historical background of a library helps determine its functions and its future; shifts in modes of publishing affect and monetary concerns shape the development and preservation of an historical collection.
• Libraries evolve. Medical libraries undergo a normal and profoundly useful transformation over time into repositories of medical history.
• Books alone do not a library make: Libraries can and should be settings for continuing education, cultural affirmation, and assistance to scholars by preserving and making available for use a variety of sometimes rare archival and published materials.

Implications

• Knowing the political and cultural background of a library is essential to understanding its history as well as its present-day status.
• Preserving and expanding historical collections demands vigilance and creative management, especially under difficult fiscal and political circumstances. The loyal and diligent work of Hungarians and others who helped build and preserve this library can serve as a model for other threatened collections.
• Sharing the story of a relatively unknown library''s development brings its general assets and unique resources to the attention of a wider audience of librarians and scholars. Few outside Hungary have previously had any way of knowing about the Semmelweis Medical History Library''s rich holdings.

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Trying to Make a Lever Work at Ages 1 to 4: The Development of "Functions" (Logico-mathematical Thinking)     

Constance Kamii  Yoko Miyakawa  Tsuguhiko Kato 《Early education and development》2013,24(1):145-161

To find out if children could make functions before age 4, 73 children aged 1 to 4 were encouraged to imitate the use of a lever to make a beanbag fly up. Functions are mental relationships that preoperational children can make between 2 things at a time in a unidirectional way (Piaget, Grize, Szeminska, &; Bang, 1968 Piaget, J., Grize, J.-B., Szeminska, A. and Bang, V. B. 1977. Epistemology and psychology of functions, Boston: Dreidel. (Original work published 1968)[Crossref] , [Google Scholar]/1977). The child's construction of the following 3 functions was hypothesized and confirmed: (a) As a function of being pushed down, the up end of the board (the lever) goes down; (b) as a function of this descent, the down end of the board goes up; and (c) as a function of this ascent of the board, the beanbag flies up. Three developmental levels were found, and educational implications are discussed.  相似文献   

An Initial Comparison Of Collaborative And Expert-Driven Consultation On Treatment Integrity     

Constance Kelleher  T. Chris Riley-Tillman  Thomas J. Power 《Journal of educational and psychological consultation》2013,23(4):294-324

Although over 15 years have passed since Witt (1990) Witt, J. C. 1990. Collaboration in school based consultation: Myth in need of data. Journal of Educational and Psychological Consultation, 1(3): 367–370. [Taylor & Francis Online] , [Google Scholar] noted that no empirical evidence exists to support the contention that a collaborative approach to consultation leads to more positive outcomes than a hierarchical or expert driven approach, this issue generally remains unaddressed (Schulte & Osborne, 2003 Schulte, A. S. and Osborne, S. S. 2003. When assumptive worlds collide: A review of definitions of collaboration in consultation. Journal of Educational and Psychological Consultation, 14(2): 109–138. [Taylor & Francis Online], [Web of Science ®] , [Google Scholar]). While the literature documenting the benefits of consultation has continued to grow, a true head-to-head comparison has not been conducted. The purpose of the present study was to directly address Witt's call by empirically examining the impact of two consultation styles on a critical variable, practitioner treatment integrity. It was hypothesized that the involvement of practitioners in all aspects of intervention design would increase their level of treatment integrity. Two single-subject experiments using multiple baseline across subjects designs were used to examine the difference in level of treatment integrity for an imported, expert-driven intervention and a partnership-designed intervention. The first experiment was divided into three phases: (a) Phase I, Expert-driven Model; (b) Phase II, Treatment Integrity Intervention; and (c) Phase III, Partnership Model. The second experiment presented the three phases in reverse order to address the possibility of presentation effects: (a) Phase I, Partnership Model; (b) Phase II, Expert-driven Model; and (c) Phase III, Treatment Integrity Intervention. In general, the five participants who completed the three phases of the experiments demonstrated higher levels of treatment integrity during the partnership phase. Overall, the results suggest that engaging with consultees in a collaborative approach may increase the level of integrity with which the intervention is applied.  相似文献   

Creating a Culture of Reform and Reflection     

Constance L. Walker  Diane J. Tedick 《Teaching Education》2013,24(2):81-95

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Investigation of the Development of Pre-Academic Skills for Preschoolers in Head Start     

Constance C. Beecher  Paul Strand  Brian F. French 《Journal of Education for Students Placed at Risk》2013,18(3):230-249

Abstract

This study modeled the time-dependent nature of pre-academic skills development for a multi-lingual sample of 382 preschoolers attending Head Start. A two-slope latent variable model accurately described the trajectories, which included five assessment points obtained throughout the school year for both pre-literacy and pre-numeracy variables. Classroom quality and child demographic variables including age, gender, native language (Spanish or English), and disability status served as predictors of growth. Results revealed a reversal effect such that steeper growth from October to March was offset, although not completely, by less growth from March to May. Similar interaction effects were observed for predictor variables and their interaction terms across the two slopes. IEP status predicted less growth, while Spanish-language status predicted increased growth, despite the fact that both were associated with low initial achievement. The complexity of the relationship between classroom quality, native language, disability status, and pre-academic growth is discussed.  相似文献