The politics of similarity within difference: A pedagogy for the other

The cultural political struggles of five female teachers in a heavily populated minority urban school in Southern California depicts bothsimilarity anddifference. Similarly, each teacher struggles to help overcome her own and students' oppression, subordination, and alienation. Through understandingsimilarity, different teacher and student voices make understanding the other easier. It is argued that understanding similarity within difference opens space for a democratic imaginary, that, while not clearly articulated at any one moment, acts to variously challenge the oppressive forces existing within and outside of schools.     

数码印刷 极具竞争力

与任何新兴技术一样,数码印刷虽然出现得较晚,但正在备方面取得持续,迅猛的发展,特别是在速度,输出幅面和可靠性方面有了很大提高。 喷墨技术的发展体现在速度上．可与计算机的处理速度和数码相机的突飞猛进相媲美。喷墨印刷设备将随着速度的改变而快速地发展。主要打印头供应商正在提高制造精度以及产量,并且降低销售价格。同时,正在关注可变喷墨头、更小墨滴的喷墨能力,以及喷墨速度的改善。     

Target students in year 8 science classrooms: A comparison with and extension of existing research

Conclusion The aims of this study were to replicate existing target student research and to investigate the possible contribution student perceptions of their classroom environment could add to existing research findings. Although target students of the types previously identified were found to exist, and found in similar numbers, there the similarity with previous findings ceased. They were not dominantly male and there was a cross-gender relationship with the teacher. The inclusion of student perceptions of their classroom environment did add to the personal characteristics in helping to describe target students. However, their characteristics were not consistent across classes, and although a rationale could be developed to explain the existence of the different types of target students in classrooms, these explanations were idiosyncratic to particular classrooms. The findings in this study would suggest caution in making generalizations about the characteristics of, and rationales for, target students in Year 8 science classrooms.     

Assessment and investigation of science laboratory skills among year 5 students

In line with the current interest in alternative and authentic assessment, this study focused on the evaluation of students' performance on science laboratory process skills. A sample of 147 year 5 students from six schools responded to laboratory process skills tests which assess investigating, performing and reasoning in the content areas of biology, chemistry and physics. The data were analysed to provide information about students' overall practical performance and to identify specific preinstructional conceptions and erros. An investigation of predictors of laboratory performance revealed significant associations between performance and amount of homework done and students' perceptions of several aspects of the classroom environment (personalisation, investigation and organisation). The gender differences commonly found in science achievement were absent when laboratory performance was used as the criterion.