学习模式的变革取向与预期特点

根据学习模式类型的性质和价值,论述了当前我国学习模式变革的基本取向,并在此基础上,结合国内外教育教学改革的发展走势,分别从目标取向、学习理念、学习任务、评价倾向、教学方式、学习情境、学习分组、教师角色、学习者角色和信息技术支持等方面,描述了学习模式变革的十大预期特点,以期为认识和探索学习模式的变革提供一个具有可操作意义的思维框架。     

Exemplifying definitions: a case of a square

In this study we utilize the notion of learner-generated examples, suggesting that examples generated by students mirror their understanding of particular mathematical concepts. In particular, we explore examples generated by a group of prospective secondary school teachers for a definition of a square. Our framework for analysis includes the categories of accessibility and correctness, richness, and generality. Results shed light on participants’ understanding of what a mathematical definition should entail and, moreover, contrast their pedagogical preferences with mathematical considerations.     

Multicultural attitudes of prospective teachers: The influence of multicultural ideology and national pride

Attitudes toward multiculturalism in educational contexts – i.e., multicultural attitudes – are desirable qualities for good teaching practices. Unfortunately, little is known about the antecedents of prospective teachers’ multicultural attitudes. Before this backdrop, we argue that prospective teachers’ multicultural ideology, national pride, and intergroup contact are related to their multicultural attitudes. Studying these relationships can offer valuable insights for initial teacher education programs. We assessed prospective teachers’ (n = 72) multicultural attitudes (adapted version of the Teachers’ Multicultural Attitude Survey), multicultural ideology (Multicultural Ideology Scale), national pride (single item from large scale studies) and intergroup contact (experiences in multicultural classrooms and intergroup friendship). Results showed that higher multicultural ideology and lower national pride were related to more positive multicultural attitudes. We found no such relation for intergroup contact. Based on these new insights into prospective teachers’ multicultural attitudes, we argue that initial teacher education programs should reinforce and develop prospective teachers’ multicultural ideology and consider the role of national pride.     

Seeing one another as “other”

In this paper, the authors discuss two complementary life history research projects investigating prospective teachers' identities in relation to their race and social class. Drawing on the experiences of one student from each study, they show how both whites and students of color primarily thought about one another as “others”—people who fundamentally differed from one another and whom they understood through preconceived ideas about a group. The authors draw on a Bakhtinian notion of how a “surplus of sight” enables one to develop understandings of an “other” and also of oneself.     

Do race,neglect, and childhood poverty predict physical health in adulthood? A multilevel prospective analysis

Childhood neglect and poverty often co-occur and both have been linked to poor physical health outcomes. In addition, Blacks have higher rates of childhood poverty and tend to have worse health than Whites. This paper examines the unique and interacting effects of childhood neglect, race, and family and neighborhood poverty on adult physical health outcomes. This prospective cohort design study uses a sample (N = 675) of court-substantiated cases of childhood neglect and matched controls followed into adulthood (M_age = 41). Health indicators (C-Reactive Protein [CRP], hypertension, and pulmonary functioning) were assessed through blood collection and measurements by a registered nurse. Data were analyzed using hierarchical linear models to control for clustering of participants in childhood neighborhoods. Main effects showed that growing up Black predicted CRP and hypertension elevations, despite controlling for neglect and childhood family and neighborhood poverty and their interactions. Multivariate results showed that race and childhood adversities interacted to predict adult health outcomes. Childhood family poverty predicted increased risk for hypertension for Blacks, not Whites. In contrast, among Whites, childhood neglect predicted elevated CRP. Childhood neighborhood poverty interacted with childhood family poverty to predict pulmonary functioning in adulthood. Gender differences in health indicators were also observed. The effects of childhood neglect, childhood poverty, and growing up Black in the United States are manifest in physical health outcomes assessed 30 years later. Implications are discussed.     

Effects of Huangqi and bear bile on recurrent parotitis in children: a new clinical approach

Objective:To evaluate the pharmacological effects of traditional Chinese medicine,bear bile capsule and Huangqi granule,on recurrent parotitis in children.Methods:In this prospective,controlled,and randomized study,a total of 151 young children were divided into three groups:Group A included massaging the children’s parotid region and melting vitamin C in their mouth daily;Group B included swallowing bear bile capsule and Huangqi granule daily;and Group C included massages and vitamin C as prescribed in Group A,and traditional Chinese medicine as prescribed in Group B.Children were treated individually for one month and then a follow-up study was conducted for 1 to 3.5 years.Analysis of variance(ANOVA) and Ridit analysis were employed for statistical analysis.Results:The recurrence rate decreased in every group,but was significantly more in Groups B and C when compared to Group A.The recurrences significantly decreased(P<0.01) in Group B and their recovery rate was as high as 63%,significantly better than those of the other groups(P<0.01).Conclusions:Huangqi and bear bile could be a novel clinical approach for treating recurrent parotitis in children.     

Breaking with tradition: An investigation of an alternative instructional sequence designed to improve prospective teachers’ noticing skills

This experimental study aims to investigate the effect of an alternative instructional sequence designed to improve prospective teachers’ noticing skills. The participants consisted of two groups of prospective teachers (N = 28). To assess their noticing skills, the participants were asked to note critical events in the classroom and to provide detailed explanations about why they found these worth noting. The results indicate that the participants in experimental group showed higher levels of noticing skills compared to those in control group. The study presents a discussion of the success of the instructional approach in improving the noticing skills of future mathematics teachers.     

A Qualitative Case Study of Prospective Chemistry Teachers’ Knowledge About Instructional Strategies: Introducing Particulate Theory

The purpose of this study was to investigate prospective chemistry teachers’ knowledge about instructional strategies, one component of pedagogical content knowledge about introducing particulate theory, as well as sources of this knowledge. Twenty-two prospective chemistry teachers participated in the study. Data were collected by the means of a vignette, semistructured interviews, and lesson plans. Analysis showed that concrete objects, computer animations, and expository teaching were the preferred teaching techniques by prospective teachers. Several issues, such as general pedagogical knowledge, subject matter knowledge, and knowledge about students’ difficulties, were found to be the main factors for choosing a teaching strategy to make an introduction to particles.     

What makes a problem mathematically interesting? Inviting prospective teachers to pose better problems

School students of all ages, including those who subsequently become teachers, have limited experience posing their own mathematical problems. Yet problem posing, both as an act of mathematical inquiry and of mathematics teaching, is part of the mathematics education reform vision that seeks to promote mathematics as an worthy intellectual activity. In this study, the authors explored the problem-posing behavior of elementary prospective teachers, which entailed analyzing the kinds of problems they posed as a result of two interventions. The interventions were designed to probe the effects of (a) exploration of a mathematical situation as a precursor to mathematical problem posing, and (b) development of aesthetic criteria to judge the mathematical quality of the problems posed. Results show that both interventions led to improved problem posing and mathematically richer understandings of what makes a problem ‘good.’