L'Appropriation de l'Outil Ordinateur par les Enseignants en Formation     

Gerard Bossuet 《欧洲师范教育杂志》1982,5(1-2):101-105

L'auteur décrit son expérience de travail avec le système informatique logo au niveau de l'école primaire. LOGO est évidemment un outil très puissant mais il pose la question quant à une formation appropriée des enseignants et pour son utilisation.

The author describes his experience of working with the LOGO computer language at Primary level. LOGO is clearly a very powerful tool but its very power raises major questions about its use and about an appropriate training for teachers.  相似文献   

Students’ assessment preferences, perceptions of assessment and their relationships to study results     

Gerard van de Watering  David Gijbels  Filip Dochy  Janine van der Rijt 《Higher Education》2008,56(6):645-658

The purposes of this study are to gain more insight into students’ actual preferences and perceptions of assessment, into the effects of these on their performances when different assessment formats are used, and into the different cognitive process levels assessed. Data were obtained from two sources. The first was the scores on the assessment of learning outcomes, consisting of open ended and multiple choice questions measuring the students’ abilities to recall information, to understand concepts and principles, and to apply knowledge in new situations. The second was the adapted Assessment Preferences Inventory (API) which measured students’ preferences as a pre-test and perceptions as a post-test. Results show that, when participating in a New Learning Environment (NLE), students prefer traditional written assessment and questions which are as closed as possible, assessing a mix of cognitive processes. Some relationships, but not all the expected ones, were found between students’ preferences and their assessment scores. No relationships were found between students’ perceptions of assessment and their assessment scores. Additionally, only forty percent of the students had perceptions of the levels of the cognitive processes assessed that matched those measured by the assessments. Several explanations are discussed.  相似文献   

Triadic Supervision and its Impact on the Role of the Supervisor: A Qualitative Examination of Supervisors' Perspectives     

Serge Hein  Gerard Lawson 《Counselor Education & Supervision》2008,48(1):16-31

Although triadic supervision has been the subject of little empirical research, perspectives of supervisors in this form of supervision have received even less attention. This qualitative study examined 6 doctoral student supervisors' experiences of triadic supervision and the demands it placed on them in their role as supervisors. Data collection involved use of in‐depth, open‐ended interviews, and a whole‐text analysis resulted in 2 major categories. These categories address various ways in which triadic supervision increases or decreases the demands placed on the supervisor. Implications of the findings for supervisory practices and future research are also addressed.  相似文献   

Separation by dielectrophoresis of dormant and nondormant bacterial cells of Mycobacterium smegmatis     

Ke Zhu  Arseny S. Kaprelyants  Elena G. Salina    Gerard H. Markx 《Biomicrofluidics》2010,4(2)

The dielectrophoretic behavior of active, dead, and dormant Mycobacterium smegmatis bacterial cells was studied. It was found that the 72-h-old dormant cells had a much higher effective particle conductivity (812±10 μS cm⁻¹), almost double that of active cells (560±20 μS cm⁻¹), while that of dead (autoclaved) M. smegmatis cells was the highest (950±15 μS cm⁻¹) overall. It was also found that at 80 kHz, 900 μS cm⁻¹ dead cells were attracted at the edges of interdigitated castellated electrodes by positive dielectrophoresis, but dormant cells were not. Similarly, at 120 kHz, 2 μS cm⁻¹ active cells were attracted and dormant cells were not. Using these findings a dielectrophoresis-based microfluidic separation system was developed in which dead and active cells were collected from a given cell suspension, while dormant cells were eluted.  相似文献