Changing relations between universities and colleges of education     

Boris Ford 《Higher Education Quarterly》1974,28(4):404-436

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Effects of variations in task design on mathematics teachers’ learning experiences: a case of a sorting task     

Boris Koichu  Orit Zaslavsky  Lea Dolev 《Journal of Mathematics Teacher Education》2016,19(4):349-370

The goal of the study presented in this article was to examine how variations in task design may affect mathematics teachers’ learning experiences. The study focuses on sorting tasks, i.e., learning tasks that require grouping a given set of mathematical items, in as many ways as possible, according to different criteria suggested by the learners. We present an example of a sorting task for which the items to be grouped are related to basic concepts of analytical geometry that are connected to the notion of loci of points. Based on a design experiment of three iterations with practicing secondary school mathematics teachers, we report on intended and enacted objects of learning inherent in three versions of the task. Empirically based suggestions are drawn about design of sorting tasks that potentially evoke desirable learning experiences.  相似文献   

Active Learning through Modeling: Introduction to Software Development in the Business Curriculum*     

Boris Roussev  Yvonna Rousseva 《Decision Sciences Journal of Innovative Education》2004,2(2):121-152

Modern software practices call for the active involvement of business people in the software process. Therefore, programming has become an indispensable part of the information systems component of the core curriculum at business schools. In this paper, we present a model‐based approach to teaching introduction to programming to general business students. The theoretical underpinnings of the new approach are metaphor, abstraction, modeling, Bloom's classification of cognitive skills, and active learning. We employ models to introduce the basic programming constructs and their semantics. To this end, we use statecharts to model object's state and the environment model of evaluation as a virtual machine interpreting the programs written in JavaScript. The adoption of this approach helps learners build a sound mental model of the notion of computation process. Scholastic performance, student evaluations, our experiential observations, and a multiple regression statistical test prove that the proposed ideas improve the course significantly.  相似文献   

Social Network Structures among Groundnut Farmers     

Mary Thuo  Boris E. Bravo-Ureta  David K. Okello  Evelyn Nasambu Okoko  Nelson L. Kidula 《The Journal of Agricultural Education and Extension》2013,19(4):339-359

Abstract

Purpose: Groundnut farmers in East Africa have experienced declines in production despite research and extension efforts to increase productivity. This study examined how social network structures related to acquisition of information about new seed varieties and productivity among groundnut farmers in Uganda and Kenya.

Design/methodology/approach: Data came from face-to-face interviews with a sample of 491 farmers randomly selected from a larger frame purposefully selected to represent farmers who had worked with researchers and farmers who had not, and to represent both male and female farmers. We used social network analysis to visualize and interpret patterns of farmers' networks with regard to information sources, productivity supports and local group affiliations.

Findings: Ugandan farmers primarily used weak ties with researchers and extension agents as sources of information. In contrast, Kenyan farmers used strong ties with close associates. For farmers in both countries weak ties were least associated with productivity. Strong ties, natural factors and farmers' own experience with new varieties were most associated with productivity. The majority of farmers had ties to local groups to strategically pool risks and access available resources.

Practical implications: Visualizing farmers' social networks enables policy-makers and change agents to identify relevant social relationships that could be utilized strategically to increase the capacities of poor farming communities.

Originality/value: The study demonstrates that important differences in social network structures can exist among farmers in similar geographic regions producing similar crops.  相似文献   

Communication as Incarnation     

Boris H. J. M. Brummans 《传播与批判/文化研究》2013,10(2):186-187

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Harcum Freshmen Evaluate Their Preparation for College     

Boris Blai Jr. 《Community College Journal of Research & Practice》2013,37(4):355-361

Abstract

The scope of high school preparation for college includes many dimensions of student coping behavior. After completing one semenster of college, 272 Harcum Junior College freshmen replied anonymously to a questionnaire. They were asked to identify those areas in which they believed they needed help before entering college to cope more effectively with the real dimensions of college living and study. The questionnaire instrument explored three broad areas: educational information, psychosocial information, and vocational information. Strength of need was indicated by frequency of mention and degree-level of assessed need. Among the 5 strongest needs expressed (of a total of 19), 4 fall into the educational information category: the strongest need was for reading skills; studying for an exam was second; preparing a bibliography was fourth; math skills and concepts was fifth. The third—improving my motivation—is very closely related, for a reasonable inference is that the motivation relates to studying, learning, and matters “educational.” The extent to which the results of the questionnaire may be generalized beyond Harcum is best answered by replication of the questionnaire inquiry among other samples of freshmen.  相似文献   

The bumpy road of technology partnerships: Understanding causes and consequences of partnership mal-functioning     

Boris Lokshin  John Hagedoorn  Wilko Letterie 《Research Policy》2011,40(2):297-308

Research on technological partnerships has traditionally sought explanation of their high failure rates in partner characteristics and relationship features. This study introduces the notion of a ‘bumpy road’ in technology partnerships which refers to undesired outcomes such as ‘partnership mal-functioning’ and ‘instability’ to the degree to which innovation activities are hampered. We explain how firm-level strategies can reduce the probability of a ‘bumpy road’ in partnerships. We also assess the impact of this ‘bumpy road’ on innovative performance. We find that firms that excel in diversification of external activities (in terms of different types of partners) perform best. Moreover, a persistent product oriented innovation strategy geared at developing new products, new markets, or higher product quality will yield more stable partnership outcomes. Our results confirm that engagement in partnerships is beneficial for innovative performance. However, firms that experienced a ‘bumpy road’ in their technological partnerships have to pay a price in terms of a negative effect on their innovative performance.  相似文献   

Business-as-usual reading instruction in 2nd grade: teacher centered and rarely evidence-based     

Peters  Martin T.  Förster  Natalie  Forthmann  Boris  Souvignier  Elmar 《Reading and writing》2022,35(7):1569-1597

Reading and Writing - The goal of the current study was to gain insight into what elements encompass business-as-usual (BAU) reading instruction and to what extent BAU reading instruction includes...  相似文献   

The use of physiological,anthropometric, and skill data to predict selection in a talent-identified junior volleyball squad     

Tim Gabbett  Boris Georgieff  Nathan Domrow 《Journal of sports sciences》2013,31(12):1337-1344

Abstract

The aim of this study was to determine whether physiological, anthropometric, and skill test results could discriminate between junior volleyball players of varying ability. Twenty-eight junior volleyball players competed for selection in a talent-identification volleyball programme. Participants underwent measurements of stature, standing reach stature, body mass, skinfold thickness, overhead medicine ball throw, vertical jump, spike jump, 5-m and 10-m speed, “T” test agility, maximal aerobic power, and passing, setting, serving, and spiking technique and accuracy. A discriminant analysis was conducted on the selected and non-selected groups to obtain a regression equation that could be used to predict selection in junior volleyball squads based on the dependent variables. Passing and serving technique were the only significant variables included in the discriminant analysis. Cross-validation results showed that 17 of 19 selected players (89.5%) and 5 of 9 non-selected players (55.6%) were correctly classified into selected and non-selected groups, respectively, providing an overall predictive accuracy of 78.6%. The results of this study demonstrate that selected skill test results (i.e. subjective coach evaluations of passing technique and serving technique), but not physiological and anthropometric data, discriminate between successful and unsuccessful talent-identified junior volleyball players. These results demonstrate the importance of developing passing and serving technique in talent-identified junior volleyball players.  相似文献   

Coordinated decentralized sliding mode MRAC with control cost optimization for a class of nonlinear systems     

Boris Mirkin  Per-Olof Gutman  Yuri Shtessel 《Journal of The Franklin Institute》2012,349(4):1364-1379

In this paper, we develop an approach for solving the problem of sliding mode decentralized adaptive state-feedback tracking with continuous control actions for a class of uncertain nonlinear dynamical systems. In addition to the traditional asymptotic zero error tracking specification in the sliding mode decentralized model reference adaptive control (MRAC) problem formulation, here an additional requirement is specified explicitly in the problem statement. The tracking objective is described by a set of admissible reference trajectories, called a performance tube. The input signal to the reference model, selected within specified bounds, is used as a design parameter. The best reference trajectory is found by solving an additional optimization problem whose criterion penalizes the variance of the control signal.  相似文献