Learning from others in 9‐18‐month‐old infants

The use of an adult as a resource for help and instruction in a problem solving situation was examined in 9, 14, and 18‐month‐old infants. Infants were placed in various situations ranging from a simple means‐end task where a toy was placed beyond infants' prehensile space on a mat, to instances where an attractive toy was placed inside closed transparent boxes that were more or less difficult for the child to open. The experimenter gave hints and modelled the solution each time the infant made a request (pointing, reaching, or showing a box to the experimenter), or if the infant was unable to solve the problem. Infants' success on the problems, sensitivity to the experimenter's modelling, and communicative gestures (requests, co‐occurrence of looking behaviour and requests) were analysed. Results show that older infants had better success in solving problems although they exhibited difficulties in solving the simple means‐end task compared to the younger infants. Moreover, 14‐ and 18‐month‐olds were sensitive to the experimenter's modelling and used her demonstration cues to solve problems. By contrast, 9‐month‐olds did not show such sensitivity. Finally, 9‐month‐old infants displayed significantly fewer communicative gestures toward the adult compared to the other age groups, although in general, all infants tended to increase their frequency of requests as a function of problem difficulty. These observations support the idea that during the first half of the second year infants develop a new collaborative stance toward others. The stance is interpreted as foundational to teaching and instruction, two mechanisms of social learning that are sometime considered as specifically human. Copyright © 2006 John Wiley & Sons, Ltd.     

教师组织公民行为与教学效能感的关系研究

文章采用教师组织公民行为与教师教学效能感问卷,对广州市的205名初中教师进行了研究,以探讨学校等级、性别、职称、学历、教龄等背景变量对初中教师组织公民行为、教学效能感的影响,以及教师组织公民行为与教师教学效能感之间的关系。结果发现:教师组织公民行为、教学效能感在学校等级和职称上存在着显著性差异;教师组织公民行为与教师教学效能感之间存在着显著性相关,教师组织公民行为中的认同组织和良心行为因子是教师教学效能感的有效预测变量。     

浅谈内隐学习在大学英语教学中的应用

内隐学习是一种自动的、不易觉察的、对复杂规律敏感的学习,内隐学习与学科教学的结合是近年来内隐学习研究取得的新进展。结合大学英语教学的实际,对内隐学习在大学英语教学中的应用进行了思考并提出了几点认识。     

History,philosophy and science teaching what can be done in an undergraduate course?

This paper describes an attempt to introduce philosophy and history of science to pre-service science teachers. I argue briefly for the view that science in the schools cannot be taught without implicitly assuming a particular philosophy of science. Therefore, both philosophy and history of science are necessary components of undergraduate science education courses.     

Thought experiments and conceptual revision

The idea that claims about the physical world might be arrived through a priori reasoning has a long history in physics. But it is clear that empiricist notions of the nature of science, and in particular the empirical nature of physics, have held sway in this century. Yet, in the idea of thought experiments in science, we might find the survival of earlier a priori reasoning to the truth of claims about the physical world. This paper challenges the notion that science can be understood as a purely empirical endeavor and points out what reforms would be necessary for teaching the image of science to our young.     

THE EFFECTS OF MODELLING ON THE CONTINGENT PRAISE OF MENTAL RETARDATION COUNSELLORS

A multiple-baseline design was used to evaluate the effects of a simple modelling procedure on the contingent praise of five counsellors while they conducted hygiene-training sessions in toothbrushing and hand-and-face washing with severely retarded children. After varying numbers of baseline sessions, each counsellor watched a model who conducted a series of toothbrushing sessions, in which he conspicuously praised correct toothbrushing responses and approximations to correct responses. No modelling occurred during hand-and-face washing sessions. As a result of several exposures to the model's performance, levels of response-contingent praise provided by four of the five counsellors during toothbrushing sessions increased sharply over baseline. The levels of counsellor praise showed parallel increases during hand-and-face washing sessions. A two-week followup showed that the levels of praise obtained through modelling were maintained in the model's absence.     

A behavioral technology for producing concept formation in university students

Three experiments analyzed the effectiveness of a textbook incorporating "concept programming" in producing concept formation in university students. The concept programming portion of each lesson requires students to determine which concept is illustrated by each of 20 short fictional stories about everyday behavioral situations. The stories are selected to illustrate and contrast the concepts of that lesson. Student responses are heavily prompted during the initial stories of each lesson. The first experiment demonstrated that students generalize to entirely novel examples from the examples in the textbook. The second experiment demonstrated that the concept programming portion of the textbook is a critical component in producing generalization. The third experiment demonstrated that the amount of concept formation produced by the concept programmed textbook is greater than that produced by a widely used standard textbook.     

IN VIVO LANGUAGE INTERVENTION: UNANTICIPATED GENERAL EFFECTS

After observing the lack of generalization of language trained in highly structured training sessions using established behavior modification techniques, “incidental teaching” procedures were developed to change the use of specified language behaviors in the natural environment. This paper reports an analysis of the general changes in the language, other than that specifically targeted by the incidental teaching procedures, used by disadvantaged preschool children. The daily language samples of disadvantaged children involved in a previously reported experiment to increase compound sentence usage were reexamined and compared to comparable records of other disadvantaged children and of middle-class children of college parents in order to assess possible general effects of the intervention program. Whereas the language that both groups of comparison children used changed little across the preschool year, the amount of talking by the children in the experimental program increased markedly. Their use of more elaborate vocabulary and more elaborate sentences also increased in direct proportion to the increases in overall language use, such that both language use and language elaboration in the experimental group of children changed from a pattern similar to the comparison group of disadvantaged children to a pattern similar to the comparison group of middle-class children. It is argued that some general features of the incidental teaching procedure—differentially attending to child overtures and responding relative to the child's selected topic (reinforcer)—contributed to the increase in overall language use beyond the specific language behavior targeted, and that this increase in the probability of children's talking itself resulted in the substantial increases in elaboration seen in the children's spontaneous language. Because, at least in children with fairly well-developed language repertoires, language use is contextually controlled, talking more involves talking in more varied and complex contexts, which inevitably produces the use of more elaborate language.     

ACQUISITION OF SIGN LANGUAGE BY AUTISTIC CHILDREN II: SPONTANEITY AND GENERALIZATION EFFECTS

Autistic children typically do not use their language repertoire in order to communicate. Six autistic children who exhibited poor communication skills were trained to use their sign repertoire to make spontaneous requests of adults. Training consisted of imitative prompting, fading, and differential reinforcement, and included aspects of incidental teaching. The children displayed an increase in the rate and variety of spontaneous sign requests (Experiment 1). Generalization of spontaneity across adults (Experiments 1 and 2) and settings (Experiment 2) was also observed. We suggest that spontaneity may be facilitated when language is brought under the control of broadly defined stimuli such as adult attention rather than narrowly defined stimuli such as the presence of specific objects or verbal prompting in the form of questions. Finally, response generalization was observed as well (Experiment 1). Specifically, as spontaneity increased, self-stimulatory behavior decreased. This result may be accounted for in terms of reinforcer competition, reinforcer consistency, or discriminative stimulus effects.     

Wrapping services in an urban setting

Efforts to reform services for children and their families in Baltimore City have included providing Wraparound services to youth returned or diverted from out-of-state residential treatment. We briefly present the history and evolution of the system reform efforts in Baltimore City that were necessary to support the implementation of a Wraparound model of service delivery. The characteristics of the Wraparound service model is presented along with the referral pathway of the youth into the service system, the components of the service delivery system and an overview of step-down services and linkages utilized to transition the youth. Data are presented that demonstrate the level of community adjustment of a subset of the 121 youth served through the Wraparound model in contrast to the level of community adjustment achieved by nonequivalent comparison groups. We discuss the use of report card type of outcome measures, its user-friendly features, limitations, and the developmental steps needed to refine it further.