Universal Preschool’s Promise: Success in Early Childhood and Beyond

Fueled by a belief that early intervention can prevent a host of educational woes, efforts to provide universal, publicly funded preschool have the potential to radically change the way we think about our commitments and responsibilities in education. We call for the implementation of innovative, universal preschool programs that attend to developmental characteristics of learners, cultural and linguistic diversity, ecosystemic context, and the new mandates on teacher training. Universal preschool has the potential to go far beyond mere “day-care,” as it has the potential to establish the foundation for a lifelong love of learning and optimal social/emotional development. We also advocate for high-quality teacher training to populate preschools with high-quality teachers. If universal preschool is carefully planned and provided, K-12 education stands to benefit substantially.     

Using comparison to develop flexibility for teaching algebra

In this paper, we describe a one-day professional development activity for mathematics teachers that promoted the use of comparison as an instructional tool to develop students’ flexibility in algebra. Effective use of comparison in mathematics instruction involves using side-by-side presentation of problems and solution methods and subsequent student discussion of these multiple solution methods to highlight the similarities and differences among problem-solving techniques. The goals of the professional development activity were to make teachers aware of how to use comparison effectively in their instruction, as well as to impact teachers’ own flexibility in algebra by using comparison instructionally during the professional development. Our analysis of teachers’ experiences in the professional development activity suggests that when teachers were presented with techniques for effective use of comparison, their own understanding of multiple solution methods was reinforced. In addition, teachers began to question why they relied exclusively on one familiar method over others that are equally effective and perhaps more efficient and started to draw new connections between problem-solving methods. Finally, as a result of experiencing instructional use of comparison, teachers began to see value in teaching for flexibility and reported changing their own teaching practices.     

Controversy within a cooperative or competitive context and cognitive perspective-taking

Forty-five undergraduates discussed a moral issue with a confederate who had the same opinion (no controversy) or opposite opinion (controversy). Subjects in the controversy conditions discussed within either a cooperative or a competitive context. Subjects in the controversy conditions indicated more conceptual conflict or uncertainty, engaged in more information seeking behavior, and were more accurate in taking the cognitive perspective of the confederate than were subjects in the no-controversy condition. These results support Piaget's and Kohlberg's views of the role of controversy in perspective-taking and cognitive development and Berlyne's theory of conceptual conflict and epistemic curiosity. Subjects in the competitive-context conditions experienced more uncertainty, engaged in more information-seeking behavior, and were more accurate in cognitive perspective-taking than were subjects in the cooperative-context condition. Subjects in the competitive-context condition also experienced more cognitive dissonance, derogated the confederate and the confederate's position and arguments to a greater extent, and indicated greater closed-mindedness in responding to the confederate and the confederate's arguments than did subjects in the cooperative-context or the no-controversy conditions.     

Generality of the failure-to-escape (helplessness) phenomenon in rats

A series of four experiments investigated a number of parameters reported to produce “helplessness” in rats. Consistent differences in escape behavior were not found between inescapably shocked and restrained rats when a FR 1 shuttling response was used. Escape latencies also did not differ between groups when a reduced shock intensity was employed during escape training in FR 2 procedure or when an increased FR 3 response was employed during escape training. Findings are discussed in terms of the robustness of the failure-to-escape phenomenon from which “helplessness” in the rat is inferred.     

‘It’s a bit taboo’: a qualitative study of Norwegian adolescents’ perceptions of mental healthcare services

The aim of this study is to investigate adolescents’ perspectives on mental healthcare services. Based on theoretical perspectives concerning barriers for help-seeking, individual interviews were carried out in order to obtain the adolescents’ perspectives on knowledge of services for mental health problems, potential barriers for help-seeking, and services to which they have access. The sample consisted of vocational students from an upper secondary school in the southwest of Norway (n = 8). None of the informants was currently in treatment for mental health problems. Interview data were transcribed and analysed with the assistance of NVivo Software. Qualitative content analysis indicated that the adolescents have limited knowledge of available resources, and, that stigma-related factors may prevent the adolescents from seeking help for mental health problems. Future directions for delivering mental health services for adolescents are given.     

留法勤工俭学生与马克思主义教育思想的导入

留法勤工俭学运动是中国近代革命史和中国近代教育史上的一件大事, 对中国教育的近代命运有着深远和持久的影响。当时马克思主义在法国的广泛传播,使留法的我国早期共产主义者和革命青年得以直接接触到马列原著,因而在对马克思主义的理解上,取得了重大收获。他们在选择、认同、导入马克思主义教育思想方面,做出了自己的贡献。     

Influence of conspecific stress odors and shock controllability on conditioned defensive burying

In Experiment 1, rats received a session of 80 inescapable tail shocks or no shocks while restrained in a tube. During tests of conditioned defensive burying 24 h later, the bedding of the chamber contained odors from either stressed or nonstressed conspecific donor rats. Following a single prod shock, subjects that had had prior shocks or that were tested with the stress odors spent significantly less time burying the prod, made smaller piles of bedding, and displayed more freezing behavior. The combination of prior shock and stress odors during later testing enhanced these effects. In Experiment 2, a yoked group of rats that was given inescapable shocks, in contrast to a group that had wheel-turn escape training and one that was restrained but not shocked, later showed significantly less burying and more freezing when tested for defensive burying with stress odors present. In both experiments the duration of burying and the heights of piles were positively correlated, and both of these measures were negatively correlated with freezing. The demonstrated capacity of unconditioned stress odors to mediate different degrees of fear, depending upon the controllability of prior shock, is related to other studies of learned helplessness, and the predominance of freezing over burying is discussed in terms of various types of defensive strategies, stimulus-control processes, and the author’s stress-coping-fear-defense (SCFD) theory.     

Impact of Changing Difficulty on Inferences From the National Assessment of Educational Progress

The U.S. Department of Education measures student achievement through the National Assessment of Educational Progress (NAEP). NAEP estimates of population proficiency quantiles are based on a Bayesian multiple-imputation procedure. This article shows (a) that the resulting estimates depend directly on the mix of item difficulties on the test, and (b) the difficulty of items on the NAEP mathematics exam has increased over time. Does the increasing difficulty of the exam lead to observable changes in student performance over time? This study compared the simulated performance of 1990 examinees on the easier 1990 exam and the more difficult 1996 exam. No significant differences were found. While our results instill confidence that these changes have not impacted the NAEP trend line, our findings are both data-specific and limited in scope, and NAEP should carefully evaluate future adjustments to the test in this manner.     

Observational learning of discriminative avoidance in hooded rats

To determine the aspects of an observational situation facilitating subsequent acquisition of an observed task, two experimental groups of rats were exposed to a model’s performance of a two-way discriminative shuttlebox avoidance task with a tone as the discriminative stimulus. One experimental group (OND) observed the performance of a naive demonstrator; the other experimental group (OSD) observed a skilled demonstrator. A stimulus control group (SC) was exposed to the tone with no model present; a response control group (RC) observed demonstrator running with no tone present. A naive control group (NC) received no observational experience. All groups were subsequently tested on acquisition of the task. An analysis of variance on avoidance scores and Newman-Keuls tests for differences between means revealed that OND and OSD groups performed significantly more avoidances than the control groups. Exposure to the total tone-running sequence was found to be necessary for observational learning. The results were interpreted in terms of a sensory-sensory conditioning model.