A number-theoretic game     

Prithvi Ramesh 《Resonance》2003,8(1):84-88

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Children's conceptions of probability — A psychological and pedagogical review     

Anne S. Hawkins  Ramesh Kapadia 《Educational Studies in Mathematics》1984,15(4):349-377

This paper identifies a number of key questions concerning children's understanding of probability. A selection of psychological and pedagogical research studies is evaluated. Attention is drawn to the various definitions of probability assumed by their authors, indicating the relevance of these to an understanding and synthesis of the reported findings. The possibility of basing relevant classroom practice on subjective rather than theoretical concepts of probability is discussed.  相似文献   

Plant-fungus marriages     

Ramesh Maheshwari 《Resonance》2006,11(4):33-44

The roots of most land plants establish intimate associations with soil fungi. This association of plant roots with fungi is termed mycorrhiza. It is a marriage between two highly dissimilar organisms based on mutual exchange of nutrients: while the plants provide photosynthetically made carbon compounds to the fungi, the fungi in turn provide to the plants nitrogen and phosphorus scavenged from the breakdown of organic polymers in natural substrates. This mutually beneficial partnership makes possible the green cover on Earth and of all life, ultimately, dependent on plants.  相似文献   

Perception of teaching competencies by administrators,faculty and students of Indian agricultural universities: an assessment of faculty training needs     

P. Ramesh  D. Thammi Raju  K. M. Reddy  P. Krishnan  Amit Biswas  T. Umamaheshwari 《The Journal of Agricultural Education and Extension》2019,25(4):337-359

Purpose: The study aims at finding out relevance and knowledge levels of selected teaching competencies as perceived by educational administrators, faculty and students, in order to assess the training needs of faculty of agricultural universities.

Methodology: Relevance and knowledge levels were tested through a teaching competency questionnaire developed and run on 292 respondents fitting into administrator, faculty and student groups. Needs Assessment Model by Borich [1980. “A Needs Assessment Model for Conducting Follow-up Studies.” Journal of Teacher Education 31 (3): 39–42] is used to identify training needs.

Findings: Results indicate differences in perceptions among groups towards teaching competencies. Prioritized training needs were identified which provide the content and direction for the development of faculty in-service educational programmes.

Practical implications: Faculty of agricultural universities need periodic in-service training programmes in order to improve their teaching competencies so that they become effective and competent teachers in the present educational environment.

Theoretical implications: The statistically validated methodological framework provides for capturing the perception of all stakeholders on the teaching competencies among the faculty members of Agricultural Universities in India, and offers a scope for scaling up the study for similar educational setting in the region.

Originality/value: The perception of students and administrators was also considered along with the self-perception of faculty about the relevance and knowledge levels of teaching competencies.  相似文献   

Effective teacher education and mentoring – By Michael Strong     

Ramesh C Sharma 《British journal of educational technology : journal of the Council for Educational Technology》2009,40(5):968-969

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Book review: mathematics classrooms in twelve countries     

Ramesh Kapadia 《Educational Studies in Mathematics》2009,71(1):85-93

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Bridges Between Cultural and Digital Worlds in Revolutionary Egypt     

Ramesh Srinivasan 《The Information Society》2013,29(1):49-60

Networks are both imagined and directly experienced. While most people have trouble concretely explaining what networks are and how they structure our world, very few doubt their prominence in an increasingly globalized world where information moves at a dizzying pace. Networks speak to the link between the local and global—linking an event in a small village in Tunisia to the evening news in London. Yet they bind peoples and ideas not only across distance, but also in proximity. How are such networks imagined by peoples across dimensions of class, religion, gender, and generation in the dynamic environment that is revolutionary Egypt today? This article presents initial findings from initial ethnographic and interview-focused fieldwork conducted with Egyptians across a range of demographics. It presents insights around how technological, institutional, and human networks coordinate to present convergent and divergent actions, insights that shape an ever-changing Egyptian political reality.  相似文献   

Where Information Society and Community Voice Intersect     

Ramesh Srinivasan 《The Information Society》2013,29(5):355-365

Information and communication technology (ICT) development initiatives have begun to acknowledge the power and importance of cultural and community-focused belief systems. Yet the vast majority of such initiatives tend to preidentify developmental goals that communities hold. Paulo Freire's writings have influenced development initiatives by introducing the possibility of working with communities to orient projects. While these “participatory” initiatives have involved soliciting community feedback relative to a research project whose goals were formulated in the university or development institution, they do not go far enough to harness actual visions held by communities. It is important to conceptualize a model and methodology of engaging communities to develop and articulate their own goals of information access and ultimately, an indigenous approach toward cultural, political, and economic aspects of development. This approach holds promise to sustain communities within a return on the investment and efforts of the researcher or institution. This article closes by describing a current initiative in Southern India that reflects the described methodology.  相似文献   

Infants' Forgetting of Correlated Attributes and Object Recognition     

Ramesh S. Bhatt  Carolyn Rovee-Collier 《Child development》1996,67(1):172-187

Infants as young as 3 months of age can encode the relations among object features. Because object recognition depends critically upon a match between perceived feature configurations and representations of the object in long-term memory, the present experiments focused on infants' long-term memory for feature correlations. In 3 experiments with 72 3-month-olds, we documented the forgetting functions of different feature correlations, examined their relation to infants' memory for individual features, and replicated the findings with different stimuli. Infants were trained to activate a mobile composed of two kinds of blocks that differed in color, the figures displayed on them, and the figures' colors and were tested after different delays with recombinations of either the block colors, the figures, or the figure colors. Infants remembered some of the original feature combinations for up to 3 days but forgot all of them after 4 days. Even after 4 days, however, infants remembered the individual features that had entered into the original combinations. These results demonstrate that very young infants not only encode the relations among object features but also remember them for several days. Moreover, there is a dissociation in memory between features and feature relations: Feature relations are forgotten sooner than the individual features that comprise those relations.  相似文献   

Detecting Differential Item Functioning Using Logistic Regression Procedures   总被引：2，自引：0，他引：2  

Hariharan Swaminathan  H. Jane Rogers 《Journal of Educational Measurement》1990,27(4):361-370

A logistic regression model for characterizing differential item functioning (DIF) between two groups is presented. A distinction is drawn between uniform and nonuniform DIF in terms of the parameters of the model. A statistic for testing the hypothesis of no DIF is developed. Through simulation studies, it is shown that the logistic regression procedure is more powerful than the Mantel-Haenszel procedure for detecting nonuniform DIF and as powerful in detecting uniform DIF.  相似文献