The present study examined the effects of Classwide Peer Tutoring (CWPT) under two conditions--with reinforcement (CWPT+ R) and without reinforcement (CWPT-- R)--on 77 students' spelling performance and intrinsic interest in lower secondary school Integrated Science. The students displayed educational attainments in the average range. Both CWPT approaches led to significant improvements in spelling test performance. Both groups also evaluated the programme positively. However, the CWPT+ R group made significantly greater learning gains than did the CWPT-- R students. These appeared to be related to higher levels of academic responding. Despite their impressive spelling gains, students in the CWPT+ R group displayed significantly lower intrinsic interest in Integrated Science after involvement in CWPT. However, great caution should be exercised in interpreting this last result, as statistically significant effects werenot found when group differences at post-test were examined by way of t-test and analysis of covariance methods. In summary, the data from this study suggest: (a) that the CWPT method of instruction is useful for helping lower secondary school students, (b) that reinforcers may increase learning gains by encouraging higher rates of responding, but (c) that there is an indication, subject to caution, that these reinforcers may possibly depress intrinsic interest in an academic activity (science in the case of this study).
[Copyright of Educational Psychology is the property of Routledge. Full article may be available at the publisher's website: http://dx.doi.org/10.1080/0144341990190206]

This paper questions the traditional chalk and talk approach to teach science. The author argues that experiments should be arranged for investigating relationship between variables rather than "to prove" a big idea.

This interpretive study of the implementation of a school-based assessment scheme of biology practical work in Hong Kong examines three teachers' struggles with the issue of fairness in relation to their classroom actions. Though the teachers' discourses were dominated by, and their classroom actions were pre-eminently influenced by, the notion of fairness, they did so in three qualitatively different ways: (1) fair in the sense of assessing students on a fair basis; (2) fair in the sense of not jeopardizing students' chances to learn the subject matter while they are being assessed; and (3) fair in the sense of not depriving students' of opportunities of receiving all-round education. The implication is that assessment innovation is a necessary, but not a sufficient, mechanism for changes within our educational system. The role of the teacher is challenged by the new assessment scheme—the co-existence of assessment and learning requires a significant change in the teacher's pedagogy. For teachers to implement the new programme their existing understanding and beliefs concerning assessment must be challenged and opportunities provided for them to come to terms with the philosophy of the new assessment scheme. Most importantly, the teachers themselves must undertake such a learning process.
[Copyright of International Journal of Science Education is the property of Routledge. Full article may be available at the publisher's website:
http://dx.doi.org/10.1080/09500690010017129]

This paper argues for the use of stories in science classrooms in the teaching of science, in particular the history of science. It concludes that story can play a very important role in crossing the conventional subject boundaries.

此文旨在透過科學探究活動背後的理念，分析如何透過科學探究實踐常識科的目標，特別是訓練學生的思考，分析和解決問題的能力。文章又推介了一些工作坊的活動，介紹小學科學探究活動的設計及施行方法，還論及推行探究活動的困難。