Response bias in follow-up studies of college students

The problems of response bias in longitudinal studies of college students are examined. An extensive follow-up questionnaire was sent to 1,253 college seniors who had participated in a similar survey as freshman four years earlier. Careful measure of student responsiveness in relation to various techniques designed to increase the proportion of responders (e.g., postcard, telephone contact) were kept.The less responsive groups were significantly different from their more responsive counterparts on nearly a dozen variables representing a wide variety of content areas, including academic achievement, self-concept, alcohol consumption, social deviance, and major choice preferences. Controlling for sex and socioeconomic status served to reduce, but not eliminate, these biases. Overall, the results indicate that researchers cannot account for follow-up nonresponse bias by making statistical adjustments according to data available at initial testing. The results are discussed in light of identifying the reasons for nonresponse, and attempting to develop categories of nonresponders who may be motivated to cooperate by different types of follow-up techniques.     

Boxing clever: using shoeboxes to support home–school knowledge exchange

A key tenet of the Home–School Knowledge Exchange Project is that children's learning will be enhanced if the knowledge and experience that are to be found both at home and in school can be brought together. In this paper we explore ways of connecting home and school to support literacy learning at Key Stage 1, focusing on the home‐to‐school direction. We discuss how shoeboxes, filled with children's artefacts, can support a range of literacy‐related activities in school. It is suggested that the extensive diversity of knowledge and interests reflected in the chosen objects presents teachers with an invaluable opportunity to personalise children's literacy learning.     

Pick a Number … Any Number?

A recent classroom revelation caused us to reconsider the adequacy of the instructions offered in our textbooks for one of our most elementary quantitative methods. Specifically, we found that many students were mystified concerning how to pick an initial objective function value when plotting an isoprofit line in order to graphically solve a linear programming problem. We observed that this seemingly insignificant issue was causing a surprising amount of wasted time, confusion, and even anxiety. Our experience indicated that students do not necessarily possess any consistent intuition for choosing an appropriate initial value. We confirmed this perception through informal experimentation. We reviewed several textbooks and found that most simply do not bother to address this issue. Therefore, we devised a simple, comprehensible method which we have taught our students to resolve or avoid this problem. Although we quickly found the method to be helpful for many students, we conducted an experiment to formally measure its effect.     

课程改革与教学模式转变

新一轮基础教育课程改革以空前的力度和崭新的面貌令世人关注,要实现课程改革的预期目标,关键在于教学模式的转变。现行教学模式必须从教师本位向学生本位转变,从独白式教学向对话式教学转变,从封闭式向开放式转变,从传递接受式教学向以引导探究为主要特征的多样化教学转变。     

Towards teaching science for social responsibility: An examination of flaws in science,technology and society

In this paper we continue our search for a socially responsible science education by an examination of the trends in the Science, Technology and Society movement. These trends reflect differing ideological perspectives and result in courses which serve different ends. We identify two major flaws in the movement that inhibits the realization of a schooling in science dedicated to democracy. We propose skills necessary for citizens to participate in debate over issues surrounding the impact of science and technology on society and a teaching stategy to help develop them. Specializations: social responsibility and the curriculum, ideology and comparative science education.     

Impact of cutback planning and management on the poor and minorities in New York City: The case of public education

It is argued that the plight of the dependent-poor is likely to get worse as New York City's fiscal crisis is transformed into a service crisis. Considerable emphasis is given to describing the politics of school closings. The school closure issue has profound implications for any attempts to improve the educational lot of urban schools due to the potential relationship between white flight and school closings. The common tendency to close small and old school facilities located in areas where densities are higher (which minimizes transportation costs) results in schools being closed that are predominantly attended by poor and minority students. Policymakers should be able to learn a great deal about cutback management and planning in general through a better understanding of retrenchment policies which school districts throughout the nation have adopted.Presented at the Annual Meeting of the Association of Collegiate Schools of Planning, Washington, D.C., October, 1981.     

论自主、合作、探究学习

新课程提倡自主、合作、探究学习。自主学习的内涵包括主动性、独立性、自控性,在实践中应处理好教师主导性和学生主体性的关系;合作学习的内涵包括交往性、互动性,在实践中应处理好合作与学习、竞争、独立的关系,教师和学生的关系;探究学习的内涵包括问题性、过程性、开放性,在实践中应处理好"形"和"神"的关系。不能把自主、合作、探究学习形式化、绝对化,要学会全面辩证地看待自主、合作、探究学习。     

Measuring experiences of interest-related pursuits in connected learning

This paper describes an effort to develop a survey instrument capable of measuring important aspects of adolescents’ experiences of interest-related pursuits that are supported by technology. The measure focuses on youths’ experiences of connected learning (Ito et al. in Connected learning: an agenda for research and design. Digital Media and Learning Research Hub, Irvine, 2013), an emerging model of learning across settings supported by digital media. Specifically, the instrument aims to measure the depth with which youth are able to engage in an interest-related pursuit, the level of support and encouragement they receive from peers, and the degree to which their pursuit involves performance or media production as an essential feature. The survey also elicits information regarding the connections between youths’ interest-related pursuits and academic goals, the involvement of adults as co-participants in pursuits, and youths’ access to technology tools they deem necessary for their pursuits. The paper reports on results from a pilot study and two rounds of field-testing, in which we evaluated the validity and reliability of the instrument and compared results with evidence from interviews with youth. Our aim was to investigate the feasibility of an approach to measuring youths’ interest-related pursuits to inform future research and evaluation of initiatives focused on digital media and learning.     

课堂交往冲突研究

课堂交往冲突是指当课堂教学活动参与者用相互矛盾的行动路径去达成相同或不同活动目标时所感知到的不一致或相互干扰,它包括三种类型:程序性课堂交往冲突、实质性课堂交往冲突和人际关系课堂交往冲突。课堂交往冲突的作用具有积极和消极二重性。良性人际关系建构、信任重建、沟通重构、协商合作、加深理解以及课堂文化共同体建构等是科学管理课堂交往冲突的基本方法。