Rethinking argumentation-teaching strategies and indigenous knowledge in South African science classrooms

Our response to Hewson and Ogunniyi’s paper focuses, on the one hand, on some of the underlying tensions associated with alinging indigenous knowledge systems with westernized science in South African science classrooms, as suggested by the new, post-apartheid, curriculum. On the other hand, the use of argumentation as a vehicle to accomplish the alignment when the jury is still out on the appropriateness of argumentation as a pedagogical and research tool heightens the tension. We argue that the need for education stakeholders from indigenous heritages to value, know and document their own indigenous knowledge becomes paramount. The textualizing of indigenous knowledge, as has been done in western science, will create repositories for teachers to access and may help with the argumentation strategies such as advocated by the authors.     

The relations of early phonological awareness,rapid‐naming and speed of processing with the development of spelling and reading: a longitudinal examination

Phonological awareness has been found to be strongly related to spelling. Findings on the relations between rapid‐naming and spelling are less consistent and have been suggested to be shared with speed of processing. This study set out to examine these relations in spelling and reading of Hebrew. Children attending the regular educational system were followed longitudinally (N = 70): phonological awareness, rapid‐naming and speed of processing were tested in kindergarten and in grade 1, and spelling and reading were tested in grade 2. Kindergarten and grade 1 rapid‐naming predicted spelling and word reading, and grade 1 phonological awareness predicted spelling, word reading and decoding. Speed of processing was an insignificant predictor. The findings extend the role of phonological awareness in spelling to an orthography with partial phonological representations and concurrently suggest weak relations. The results further suggest a link between rapid‐naming and orthographic knowledge, which may not be explained by shared variance with speed of processing.     

对地理新课程"三维目标"整合的认识

从认识论的角度看,人类对地理知识的学习和掌握涉及不同的水平层次:事实性知识、概念性知识、方法性知识和价值性知识,这从一个侧面表现出地理新课程目标的内涵:即涵盖事实性知识、原理性知识,又要包括地理思想方法、地理观念,以及科学的价值观念,具体表现为"知识与技能"、"过程与方法"和"情感态度价值观"三维目标."三维目标"是一个目标中的三个维度,其中知识与技能是载体和基础,过程和方法是依托,情感、态度和价值观目标是终极归宿.三者相互联系相互依赖构成一个不可分割的有机整体,教学中应该进行整合设计和表述.     

Similar Frameworks of Action-at-a-Distance: Early Scientists' and Pupils' Ideas

Pupils' concepts regarding various types of action-at-a-distance were studied. It was found that often these perceptions related to an underlying framework of presumptions: Earth is unique, a conducting medium is needed, support is needed. These misconceptions have their analogies in the history of science; pupils' difficulties reflect those encountered by earlier scientists. These analogies, which are characterized by using concrete realizations for abstract physical concepts, are relevant to the educational researcher, the science teacher and the pupil.     

Turkish Students' Conceptions about the Simple Electric Circuits

In this study, the Turkish students' understanding level of electric circuits consisting of two bulbs and one battery was investigated by using open-ended questions. Two-hundred fifty students, whose ages range from 11 to 22, were chosen from five different groups at primary, secondary and university levels in Trabzon in Turkey. In analyzing students' drawings and explanations, both qualitative and quantitative methodologies were exploited. The unipolar model (Model A), the clashing currents model (Model B), the current consumed model (Model C) and the scientist model with current conserved (Model D) determined from the related literature were used to categorize the students' answers. The results showed that the Turkish students have many misconceptions about electric circuits. Also, it is found out that especially Model A was widespread accepted among the students in group 1 (5th grade) and half of the students in group 3 (9th grade) has an understanding of electric circuits as it is in Model C.     

Reclaiming Paedeia in an Age of Crises: Education and the necessity of wisdom

Abstract

Education needs to prepare students to have understanding of themselves, of their relationships to others, to have an ability to make good moral and other judgements and to act on these. If education has a role to play in the alleviation of the crises facing the world, then there is some urgency in reflecting on what kind of education is needed in order to prepare young people to tackle these many crises. It is our contention that the major problem with modern education is that it has forgotten that its main task is helping students to learn to be wise. That is, in considering the aims of education, it is proposed that it is wisdom which is the main aim of education. This will be so whatever level of education we are discussing, though much of our discussion refers to higher education.     

Tapping User-Driven Innovation: A New Rationale for Universal Service

The current transformation of communication policies, as governments turn to the marketplace as the driver of network evolution, requires a redefinition of universal service. The debate so far has focused primarily on the elaboration of new funding mechanisms and the definition of which services should be covered. We argue that a more fundamental, third area demands attention: the articulation of a new rationale for universal service itself. Without articulating a clear justification for universal service, designing its scope and funding mechanisms is problematic at best. Past justifications rested on welfare (make telephony affordable to all) and network externalities (increase the network?s value by widening its reach). Increasingly, these need to be complemented by a new rationale based on the innovative potential of universal service. This article explores how universal service can fuel innovation-driven economic growth.     

The implementation of a new policy on teacher appraisal in Portugal: how do teachers experience it at school?

This paper draws upon a broader piece of research aimed at investigating the implementation process of a recent policy on teacher appraisal in Portugal. Two case studies were carried out and a combination of methods for data collection was used. Findings suggest that teachers?? perceptions are marked by uncertainty and scepticism. Amongst the most critical issues are the lack of recognition of the appraisers, the bureaucratic and summative dimension, and the lack of necessary conditions to put it into practice. However, some positive aspects were also identified, namely the emergence of debates within the teaching profession, the opportunity to reflect upon teachers?? practice and to change previous teacher appraisal system.     

Children's views concerning phase changes

This article reports on answers by children (Grades 1–9) to oral and written questions concerning the phase change from liquid to gas. The development of concepts was followed, proceeding from concrete to abstract ideas. Difficulties in the application of abstractions were found, and participants were frequently misled where a choice of possible correct answers was given. Many students were found to experience difficulties in problem solving even though they may have had the necessary level of knowledge. These findings lead us to emphasize the importance of explaining specific situations and experiences using clear and relevant models to suit the discussion. To this end, a number of suggestions are made for minimizing misunderstandings and enhancing understanding.     

Teaching Weight-Gravity and Gravitation in Middle School

This study deals with the school instruction of the concept of weight. The historical review reveals the major steps in changing weight definition reflecting the epistemological changes in physics. The latest change drawing on the operation of weighing has been not widely copied into physics education. We compared the older instruction based on the gravitational definition of weight with the newer one based on the operational definition. The experimental teaching was applied in two versions, simpler and extended. The study examined the impact of this instruction on the middle school students in regular teaching environment. The experiment involved three groups (N = 486) of 14-year-old students (ninth grade). The assessment drew on a written questionnaire and personal interviews. The elicited schemes of conceptual knowledge allowed to evaluate the impact on students’ pertinent knowledge. The advantage of the new teaching manifested itself in the significant decrease of the well-known misconceptions such as “space causes weightlessness,” “weight is an unchanged property of the body considered,” and “heavier objects fall faster”. The twofold advantage—epistemological and conceptual—of the operational definition of weight supports the correspondent curricular changes of its adoption.