The History of Science Cases (HOSC): Nine Units of Instruction in the History of Science

Summaries

English

As a result of the strongly historical discussion of the structure of science and its social role, the history of science has become indispensable educational subject matter. The fulfilment of the widely recognized requirement for scientific orientation of learning seems no longer possible without a conception of the history of science.

Historical topics in science instruction were previously mostly limited to biographical notes. At best, occasional references can be found to the ‘discovery’ of laws considered by science as being of central importance. An explanation for this unsatisfactory situation must be the lack of appropriate instructional resources. This is especially true for the secondary‐school level. Thus, it is worthwhile to bring to mind a project which was completed in the USA several years ago, but which has so far not received much attention in Europe: the History of Science Cases by Leo E. Klopfer, which consists of nine teaching units in the history of science which are suitable for use in instruction at the ninth and tenth grades.     

Evaluation of a Theory of Instructional Sequences for Physics Instruction

The background of the study is the theory of basis models of teaching and learning, a comprehensive set of models of learning processes which includes, for example, learning through experience and problem‐solving. The combined use of different models of learning processes has not been fully investigated and it is frequently not clear under what circumstances a particular model should be used by teachers. In contrast, the theory under investigation here gives guidelines for choosing a particular model and provides instructional sequences for each model. The aim is to investigate the implementation of the theory applied to physics instruction and to show if possible effects for the students may be attributed to the use of the theory. Therefore, a theory‐oriented education programme for 18 physics teachers was developed and implemented in the 2005/06 school year. The main features of the intervention consisted of coaching physics lessons and video analysis according to the theory. The study follows a pre‐treatment‐post design with non‐equivalent control group. Findings of repeated‐measures ANOVAs show large effects for teachers' subjective beliefs, large effects for classroom actions, and small to medium effects for student outcomes such as perceived instructional quality and student emotions. The teachers/classes that applied the theory especially well according to video analysis showed the larger effects. The results showed that differentiating between different models of learning processes improves physics instruction. Effects can be followed through to student outcomes. The education programme effect was clearer for classroom actions and students' outcomes than for teachers' beliefs.     

FRENCH

Abstract

Today's education for civic engagement requires a global dimension. To live responsibly in their own communities, young people need to situate their personal and local interests in the context of their global interconnections. Bridging the personal, local, and global begins with an awareness of the universal aspirations for dignity and human rights widely shared across the human family. Increasingly, social educators recognize the need for American students to encounter the fundamental principles of human rights and humanitarian law as part of their own history and civic preparation. This article highlights pedagogically well designed human rights curricula that are available to educators online and typically without cost.     

'Raising the bar': views on play and training in the Move & Walk pedagogy

In this study 20 beginning special education teachers were asked to describe their experiences in general education settings. To provide data, each teacher completed approximately three electronic reflective journals during a school year and also participated in a phone interview, which was aimed to give in-depth information regarding the participants’ comments in the journals. The participants described their experiences in regard to collaboration with mainstream teachers, the delivery of the curriculum and the understanding of their role with reference to identity. They reported some good experiences but also many difficulties in their attempts to support pupils with special educational needs (SEN) and enhance their learning and participation in mainstream schools. Challenges in collaboration, the delivery of the curriculum and the development of teachers’ identity at the beginning of a career in special education are discussed. We argue that the teachers’ experiences are associated with the legislative educational system and the school culture which does not encourage collaborative practices but rather promotes individualism and leads to exclusive practices.     

Maximal oxygen uptake versus maximal power output in children

Abstract

Maximal oxygen uptake ([Vdot]O_2max) is considered the optimal method to assess aerobic fitness. The measurement of [Vdot]O_2max, however, requires special equipment and training. Maximal exercise testing with determination of maximal power output offers a more simple approach. This study explores the relationship between [Vdot]O_2max and maximal power output in 247 children (139 boys and 108 girls) aged 7.9–11.1 years. Maximal oxygen uptake was measured by indirect calorimetry during a maximal ergometer exercise test with an initial workload of 30 W and 15 W · min^?1 increments. Maximal power output was also measured. A sample (n = 124) was used to calculate reference equations, which were then validated using another sample (n = 123). The linear reference equation for both sexes combined was: [Vdot]O_2max (ml · min^?1) = 96 + 10.6 · maximal power + 3.5 · body mass. Using this reference equation, estimated [Vdot]O_2max per unit of body mass (ml · min^?1 · kg^?1) calculated from maximal power correlated closely with the direct measurement of [Vdot]O_2max (r = 0.91, P <0.001). Bland-Altman analysis gave a mean limits of agreement of 0.2±2.9 (ml · min^?1 · kg^?1) (1 s). Our results suggest that maximal power output serves as a good surrogate measurement for [Vdot]O_2max in population studies of children aged 8–11 years.     

Social influence or selection? Peer effects on the development of adolescents’ educational expectations in Germany

Abstract

Educational expectations are a key predictor of educational attainment. Throughout adolescence, friends increasingly function as ‘significant others’ and, thus, can affect the development of these expectations. Although scholars often interpret the clustering of students with similar expectations within friendship networks as the outcome of peer influence, a similarity of friends can also be a result of friendship selection processes and preselection due to ability tracking. We apply multilevel social network models to panel data of adolescents from Germany (1,992 ninth-grade students in 91 classes) to disentangle these mechanisms. Beyond selecting similar friends (homophily), we find that adolescents adapt their expectations towards the average expectations of their friends (social influence) but only in secondary-school tracks that support diverse educational paths. We conclude that peer socialization is important for the development of students’ educational expectations in contexts that are sufficiently heterogeneous to allow for the emergence of distinct peer milieus.