Parallelism in the development of children's ideas and the historical development of projectile motion theories

A study of the development of children's conceptions with respect to projectile motion was carried out in Ukraine and Israel, with the participation of 1017 subjects in grades 3 to 12. The purpose of the research was to investigate the fundamental hypothesis of genetic epistemology with respect to concepts of motion. The fundamental hypothesis states that the development of children's concepts of nature parallel the historical development of the concepts. It was found that the development of children's concepts of motion proceeds by stages, with the concepts at each stage parallel to a corresponding historical stage. A mathematical model was constructed to describe development by stages quantitatively. The theoretical model gave an excellent fit to the empirical data, and this supports the hypothesis of parallelism. The two‐country research made it possible to compare the effects of quite different school science curricula upon the development of children's concepts.     

World bank activities in library and documentation services provision in developing countries

The World Bank's lending activities to its member developing countries focus on providing loans for economic development. In this process, the Bank is also involved in improving the information activities in these countries. Many of the Bank's loans include an information component, often embedded within the project. In addition, even if the request for an information component in a project is not stated explicitly, the overall environment for activities with development impact has changed. To ensure that a project is accomplished satisfactorily often requires an element of information transfer in addition to infrastructure components. The Bank's support to these information activities has been limited, with the development of information services or libraries often forming only a minor component of the overall project.As the information age progresses, organizations such as the World Bank are likely to become increasingly involved in lending for information services and documentation support. Questions arise on whether borrowing countries perceive an increasing need for projects in information development, especially given the fact that many of the multi-lateral and bi-lateral aid agencies are working in information- related projects. The issue to be addressed for the World Bank is whether and to what extent there is a need for greater or different World Bank involvement in this area.     

Gender differences in developmental links among antisocial behavior, friends' antisocial behavior, and peer rejection in childhood: results from two cultures

This study addressed gender differences in the developmental links among antisocial behavior, friends' antisocial behavior, and peer rejection. High and increasing, moderate, and low antisocial developmental trajectories were identified among 289 Dutch children, ages 7 to 10, and 445 French-Canadian children, ages 9 to 12. Only boys followed the high trajectory. These boys had more deviant friends and were more often rejected than other children. A minority of girls followed the moderate antisocial behavior trajectory. These girls had fewer deviant friends than moderate antisocial boys, but moderate antisocial boys and girls were equally likely to be rejected. The influence of friends and poor peer relations plays a crucial but different role in the development of antisocial behavior among boys and girls.     

Skills needed for reading comprehension of physics texts and their relation to problem-solving ability

This article reports an investigation of some of the skills needed for the critical reading of physics texts. To assess these skills a reading comprehension test was developed that combines features of errordetection and true–false–unreported tests. This test was administered to college students of physics, and the results were analyzed statistically to determine the separability of the skills and their hierarchical ranking. It was found that the skill required to comprehend texts in continuous format is of a higher level than and separable from the skill required to comprehend texts in the form of a separated list of statements. The skill required to discriminate unreported statements from the others (true and false) was found to be of a higher level than and separable from the skills required to make the other discriminations. The relation between the students' reading comprehension skills and their problem-solving ability was also investigated. Students' scores on reading comprehension of texts that require a very low problem-solving ability were found to be uncorrelated to their grades on solving problems that require a very low decoding ability. This implies that the two abilities are independent.     

Do teachers make all their students play the same learning games? A comparative study of learning games in biology and English as a second language

This article, based upon the field of comparative didactics, seeks to contribute to the identification of generic and specific features in the teaching and learning process. More particularly, its aim was to examine, through the study of two different school subjects: biology and English as a second language, how passive didactic differentiation can develop and account for the gap in progress growing between more-able and less-able students. For our analysis, we adopt a didactic viewpoint basing our study on what is going on in the class when the teacher and her students interact and use notions borrowed from the Joint Action Theory in Didactics. At the end of the article, we mainly argue that more teacher training focused on ‘objects of learning’ and ‘knowledge-in-use’ is necessary if we want teachers to be able to produce didactic milieus adapted to students with mixed abilities and, more generally, if we want to increase epistemic access.