Learning Benefits of Self-Controlled Knowledge of Results in 10-Year-Old Children

Abstract

The leg strength of 70 college men was measured in a position designed to involve the power thrust of the major muscle groups used in the vertical jump. The subjects then performed a modified Sargent jump that used no arm snap. Although the reliability of all measures was high, individual differences in the ratio of tested strength to body mass showed only a low and nonsignificant correlation with jumping performance. The results are interpreted to support the hypothesis that strength exerted against a dynamometer involves a different neuromotor pattern than strength exerted by the muscles during a movement. Tables of means, variabilities, and intercorrelations are included in the report.     

Is dealing with errors in the classroom specific for school subjects? A study of the error climate in mathematics,German, and English

A frequent observation in the school context is that opportunities to learn from errors are often missed. However, a positive error climate may support learning from errors. For the school subject of mathematics, some findings about characteristics of the error climate already exist. But, a comparison of the error climate between different school subjects is still pending. In the present study, it is analyzed whether the error climate differs in different school subjects and whether the same interrelations between the ways in which individuals deal with errors can be found in these different school subjects. In a study with 937 students from 48 classrooms from grades 5 to 7, in different secondary schools in Germany and Austria, we assessed the error climate and individual reactions following errors in mathematics, German, and English. Small mean differences between mathematics and the two language subjects were yielded. In addition, we found medium-sized correlations between the error climate measures in the three school subjects. However, the same pattern of interrelations between error climate and the way individuals deal with errors for all three school subjects could be shown. The results suggest that the perception of the error climate is rather similar in different school subjects. This has implications, for instance, for interventions that aim at fostering the error climate.

     

R&D drivers and age: Are young firms different?

This study examines the relationship between R&D drivers and firm's age, taking into account the autoregressive nature of innovation.     

Violence in schools and representations of young people: a critique of government policies in France and England

This paper examines media discourses in France and in Britain relating to young people, violence and disaffection in schools, setting these within the framework of the UN Convention on the Rights of the Child, which emphasises young people’s participation rights. It analyses policy initiatives developed since 1997 in each country to address concerns about young people, disaffection and violence, examining these in the light of research evidence. It considers how public policies are variously shaped by research findings and by media representations. In France, attempts to reduce violence in schools have been accompanied by recognition that schools structurally produce disaffection and violence. In England there has been a shift in policy discourses. In 1997 the primary emphasis was social inclusion, but greater weight has since been given to the need to combat crime. (Male) youth disaffection is linked to crime. Policies addressing standards and achievement have been prioritised over policies to combat social exclusion. In both countries researchers and the media give particular attention to urban communities where minority ethnic communities live. Individual schools are labelled as failing and large numbers of young people are excluded or marginalised. In both countries minority ethnic students are over‐represented among those formally excluded from mainstream education and in the least popular, most stigmatised, schools and classes. Violence and disadvantage are effectively institutionalised. Discourses in each country are racialised and disaffection is associated with minorities. Yet both countries offer universalist rather than targeted policy responses. Opportunities for student participation in school decision‐making are limited.     

Oral History in the Classroom: A Comparison of Traditional and On-line Gerontology Classes

In this study, the effectiveness of an oral history assignment was assessed in a traditional gerontology class versus a distance education (DE) gerontology class. Attitudes toward older adults and the aging process were measured before and after students in the traditional (n = 29) and DE (n = 16) setting completed an oral history assignment. Scores were evaluated at posttest for differences between groups. The assignment positively influenced students' attitude toward older adults in both classes. Results indicate that this assignment was as effective in the DE setting as in the traditional setting. Findings suggest that oral history is an effective teaching assignment in a DE gerontology class.     

Collaborating With a Skilled Peer: The Influence of Achievement Goals and Perceptions of Partners' Competence on the Participation and Learning of Low-Achieving Students

The authors examined whether motivational goals influenced the participation and performance of low-achieving students during collaborative problem solving with a high-achieving partner. Thirty-five pairs of 4th- and 5th-grade students were randomly assigned a set of instructions designed to induce students to adopt a learning goal or a performance goal. The following day, the students were individually given a posttest on problems similar to those worked on collaboratively. The low-achieving students given learning-goal instructions performed better on the posttest problems and perceived their partner's competence as more similar to their own than did the low-achieving students given performance-goal instructions. No differences in overall amount or level of low achievers' participation during collaborative problem solving were observed. Implications of the findings for the use of peer learning in heterogeneous classrooms are discussed.     

Kieferchirurgische Operationsplanung mit Hilfe von Techniken der virtuellen Realit?t

Zusammenfassung.   Für ein vollst?ndig computergestütztes Planungssystem zum Zwecke der kieferchirurgischen Operationsplanung ist die Bereitstellung von virtuellen Werkzeugen für den Chirurgen eine grundlegende Voraussetzung. Ausgehend von den Volumendaten mit Sch?del- und Kieferknochen des Patienten erm?glicht ein einfaches Interface unter Verwendung einer geeigneten Visualisierung und haptischer Eingabeger?te die interaktive Definition und Manipulation einzelner virtueller Knochensegmente. Wir haben moderne kraftrückgekoppelte Ger?te aus dem Niedrigpreisbereich eingebunden und auf ihre F?higkeit untersucht, das dreidimensionale Verst?ndnis im Planungsproze?durch Anlehnung an die Vorg?nge bei der chirurgischen Prozedur zu erh?hen. Durch diese Eingabeger?te ist es m?glich, die Knochensegmentierung für eine Osteotomie des Unterkiefers intuitiver und schneller durchzuführen. Die definierten Teilvolumina ergeben zusammen mit ihrer r?umlichen Neuanordnung auf Grundlage einer kephalometrischen Analyse einen Operationsplan. Nach erfolgter Planung werden die Planungsergebnisse in den Operationssaal übertragen. Die intraoperativen Techniken beinhalten die Visualisierung der Planungsergebnisse, die Steuerung der Anwendung über Sprache und die Bestimmung der Patientenposition mittels eines elektromagnetischen 3D-Trackingsystems. Eingegangen am 27. April 2000 / Angenommen am 21. Februar 2001     

Funktionelle gastrointestinale St?rungen Funktionelle Dyspepsie und Reizdarmsyndrom

Ohne Zusammenfassung