Gender-related differences in reasoning skills and learning interests of junior high school students

The purpose of this study was to investigate gender-related differences in the relationship between the development of formal reasoning skills and learning interests during the early adolescent stage. For this purpose, 249 students, from seventh to ninth grade, were assessed for their level of mastery of formal reasoning skills by a test based on videotaped simple experiments. Learning interests were assessed by a written response to an open question. Results showed that adolescent boys develop patterns of formal reasoning before their girl classmates. In addition, boys tend to prefer science and technology subjects, while girls tend to prefer language, social studies, and humanities. Analysis of interactions showed that boys' tendency toward science and technology is positively correlated to their age and development of formal reasoning, while girls' tendency to the above subjects is positively related to their development of formal reasoning capacity, but inversely related to their age. Possible explanations to the above-described findings and suggestions for instructional modes that may increase girls' interest in science and technology are discussed.     

Yesterday’s Students in Today’s World—Open and Guided Inquiry Through the Eyes of Graduated High School Biology Students

Research in Science Education - Educational policy bodies worldwide have argued that practicing inquiry as a part of the K-12 curriculum would help prepare students for their lives as adults in...     

Large-scale similarity data management with distributed Metric Index

Metric space is a universal and versatile model of similarity that can be applied in various areas of non-text information retrieval. However, a general, efficient and scalable solution for metric data management is still a resisting research challenge. In this work, we try to make an important step towards such management system that would be able to scale to data collections of billions of objects. We propose a distributed index structure for similarity data management called the Metric Index (M-Index) which can answer queries in precise and approximate manner. This technique can take advantage of any distributed hash table that supports interval queries and utilize it as an underlying index. We have performed numerous experiments to test various settings of the M-Index structure and we have proved its usability by developing a full-featured publicly-available Web application.     

University faculty attitudes and knowledge about learning disabilities

ABSTRACT

Adults with learning disabilities (LD) constitute one of the fastest growing populations of students attending institutions of higher education. Faculty members play an important role in the adjustment and success of these students. The current study investigated the perceptions towards LD of faculty members at a public university in Israel. Specifically, the study examined the level of contact, attitudes, knowledge, and training of faculty members with respect to students with LD. The results demonstrated that faculty members overall had a significant amount of contact with and held positive attitudes towards students with LD. However, it appeared that faculty members would benefit from information regarding the current definition of LD, related legislation about LD and other disabilities, and training and support services for LD. Implications for practice and further research are discussed.     

Pollution monitoring by dosimetry and passive diffusion sampling for evaluation of environmental conditions for paintings in microclimate frames

Pollutants and their potential degradation of paintings have been measured for the first time in microclimate frames (mc-frames), which are used to protect paintings. The pollutants that were measured include both inorganic pollutants, which originate mainly from external sources, and organic pollutants from mainly internal sources. Those originating from the outdoors enter rooms and subsequently mc-frames at a rate depending on the ventilation rates (air exchange rates) of the mc-frames. The concentration of gaseous pollutants emitted within the mc-frames will depend on net emission rates of the materials used to make the mc-frames, their design, and their ventilation rates. In the EU PROPAINT project measurements of gaseous air pollutants and climatic conditions were performed at various locations both inside and outside different state-of-the-art mc-frames. Diffusive passive pollution gas samplers were used together with different types of dosimeters. Results show that the dosimeters respond to either the photo-oxidizing conditions or the level of volatile organic acids in the environments both in the museums and within the mc-frames. Two dosimeters, the Early Warning Organic (EWO) made from a synthetic polymer and the Resin Mastic coated Piezo electric Quartz Crystals (RM-PQC) respond to photo-oxidation and showed higher values outside than inside the mc-frames. Two other dosimeters, the Glass Slide Dosimeter (GSD) and the Lead coated Piezo electric Quartz Crystals (L-PQC) respond to volatile organic acids and yielded higher values inside than outside the mc-frames. This study emphasizes the need for further work to determine environmental damage functions for paintings, in particular for the effects of organic acids. Such information is essential for the evaluation of the protective effects of mc-frames for paintings. The use of mc-frames is increasing and it is very important to know that this protective measure does not introduce new risks.     

Priming,enabling and assessment of curiosity

Educational technology research and development - In the information age, where all answers are just a click away, curiosity, the intrinsic drive to learn, becomes of paramount importance. How easy...     

Teachers’ performances during a practical dynamic open inquiry process

The research goal of this study was to determine whether teachers who participated in an inquiry-based course were able to internalize a dynamic open inquiry process. This study focused on 25 science teachers who participated in an annual inquiry-based academic course. Several teaching tools helped teachers employ an open inquiry process. We concluded that the teaching tools applied by teachers in documenting their inquiry processes enabled them to express dynamic inquiry characteristics. The results indicate consistency between the criteria most frequent in teachers’ inquiries and the criteria running through their reflections. In addition, teachers implemented the dynamic inquiry criteria in their classroom teaching.     

Supporting Teachers’ Understanding of Nature of Science and Inquiry Through Personal Experience and Perception of Inquiry as a Dynamic Process

Research in Science Education - One of today’s challenges in science education involves the development of appropriate conceptions of inquiry teaching and realizing how these experiences can...