Book reviews     

Lord Ashby  Harold Orlans  Wilhelm Treue 《Minerva》1981,19(4):640-651

  相似文献   

Direct television via satellite     

Wilhelm Gschel 《Endeavour》1981,5(4):158-166

The use of satellites for linking major television systems is now well established, but a further important development is now imminent. This is to transmit television programmes via satellites stationary relative to the Earth, from which they are beamed back to individual receiving sets on the ground. The advantages are better reception and the elimination of the need for a multiplicity of booster stations on the ground. This system, which has already achieved experimental success and is expected to become operative in Europe in the mid-1980s, is here reviewed with special reference to the Franco-German project formally approved last year.  相似文献   

Engaging Pre-Service Teachers in Multinational, Multi-Campus Scientific and Mathematical Inquiry     

Jennifer Anne Wilhelm  Walter S. Smith  Kendra L. Walters  Sonya E. Sherrod  Judith Mulholland 《International Journal of Science and Mathematics Education》2008,6(1):131-162

Pre-service teachers from Texas and Indiana in the United States and from Queensland, Australia, observed the Moon for a semester and compared and contrasted their findings in asynchronous Internet discussion groups. The 188 pre-service teachers were required to conduct inquiry investigations for their methods coursework which included an initial Moon observation assignment, an Internet Moon discussion, and a final project. The Moon context was chosen for its motivating capability, its inherent interdisciplinary makeup, its inclusion in the National Science Education Standards, and its ability to be viewed worldwide. This study was of a mixed method research design and involved pre-service teachers’ journals, summative reflections, Internet discussions, final projects, and the Lunar Phases Concept Inventory (LPCI). Analysis of the qualitative data was conducted through the exploration of patterns and themes that illustrated pre-service teachers’ conceptual development, and the LPCI was administered as a pre/post assessment. We found that our project led to increased knowledge concerning the mathematics and science involved with understanding the Moon and its phases. We also found that it was beneficial to have Internet discussions with pre-service teachers from around the world, but it was not without its problems (e.g., coordinating schedules and lack of participation by some participants). We discovered that pre-service teachers’ exposure to the new uses of technology for teaching and learning did not necessarily translate to their planning to adopt similar techniques in their own classrooms.  相似文献   

Fostering effective studying and study planning with study questions     

Pascal Wilhelm  Jules M. Pieters 《Assessment & Evaluation in Higher Education》2007,32(3):373-382

In a course on biological psychology and neuropsychology, study questions were provided that also appeared as test questions in the course exam. This method was introduced to support students in active processing and reproduction of the study texts, and study planning. Data were gathered to test the hypothesis that study question use would be beneficial to course grades. In addition, the way in which students evaluated the method was studied. It appeared that the number of study questions answered prior to the exam had a positive effect on course grades. Students were generally positive about the use of the questions in terms of their study planning.  相似文献