The development of science concepts emergent from science museum and post-visit activity experiences : students' construction of knowledge

This research investigated students' construction of knowledge about the topics of magnetism and electricity emergent from a visit to an interactive science centre and subsequent classroom-based activities linked to the science centre exhibits. The significance of this study is that it analyses critically an aspect of school visits to informal learning centres that has been neglected by researchers in the past, namely the influence of post-visit activities in the classroom on subsequent learning and knowledge construction. Employing an interpretive methodology, the study focused on three areas of endeavour. Firstly, the establishment of a set of principles for the development of post-visit activities, from a constructivist framework, to facilitate students' learning of science. Secondly, to describe and interpret students' scientific understandings : prior t o a visit t o a science museum; following a visit t o a science museum; and following post-visit activities that were related to their museum experiences. Finally, to describe and interpret the ways in which students constructed their understandings: prior to a visit to a science museum; following a visit to a science museum; and following post-visit activities directly related to their museum experiences. The study was designed and implemented in three stages: 1) identification and establishment of the principles for design and evaluation of post-visit activities; 2) a pilot study of specific post-visit activities and data gathering strategies related to student construction of knowledge; and 3) interpretation of students' construction of knowledge from a visit to a science museum and subsequent completion of post-visit activities, which constituted the main study. Twelve students were selected from a year 7 class to participate in the study. This study provides evidence that the series of post-visit activities, related to the museum experiences, resulted in students constructing and reconstructing their personal knowledge of science concepts and principles represented in the science museum exhibits, sometimes towards the accepted scientific understanding and sometimes in different and surprising ways. Findings demonstrate the interrelationships between learning that occurs at school, at home and in informal learning settings. The study also underscores for teachers and staff of science museums and similar centres the importance of planning pre- and post-visit activities, not only to support the development of scientific conceptions, but also to detect and respond to alternative conceptions that may be produced or strengthened during a visit to an informal learning centre. Consistent with contemporary views of constructivism, the study strongly supports the views that : 1) knowledge is uniquely structured by the individual; 2) the processes of knowledge construction are gradual, incremental, and assimilative in nature; 3) changes in conceptual understanding are can be interpreted in the light of prior knowledge and understanding; and 4) knowledge and understanding develop idiosyncratically, progressing and sometimes appearing to regress when compared with contemporary science. This study has implications for teachers, students, museum educators, and the science education community given the lack of research into the processes of knowledge construction in informal contexts and the roles that post-visit activities play in the overall process of learning.

Motivational differences in science course enrolment shown by males and females in grades 9 through OAC

A sample of 1,345 students enrolled in advanced-level science courses from Grades 9 through OAe was surveyed in order to gain perspective into the existence of motivational differences attributing to science course enrolment by gender. Records of enrolment were examined in order to detect patterns and trends. A questionnaire was devised and piloted. It measured five motivational variables - demographics, science and science-related experiences, science ability and attitudes, impressions about women in science, and importance of science and science-related skills. The students also provided some impressions about the image of scientists. Results of the questionnaire were analyzed for frequency of responses and for significant gender differences using the chi-square. Differences were found to exist in the areas of science anxiety as it relates to testing and oral participation; in motivation generated by the performance of extra-curricular science and science-related activities, and by the classroom environment; in impressions of women in science; in the importance of science skills, and in the area of teacher influence. The study also showed a differential enrolment of females, with an emphasis on biology and chemistry. The males were enrolled in courses of physics and chemistry. The findings lead to numerous suggested strategies and programs for encouraging the participation of females in science education and careers.

Using everyday experiences in teaching secondary mathematics in Malawi : possibilities and constraints for change

Proponents of socially and culturally oriented mathematics education have argued that teaching approaches which value and connect with the learner's prior knowledge and everyday experience are more likely to promote active, meaningful, relevant and liberatory learning than approaches which rely on transmission and abstract presentation of mathematical content. In Malawi, proposals to reform the outdated secondary mathematics curriculum have been made with the aim of aligning mathematics instruction with the social and political changes in the current Malawian society. Using a case study approach, this study investigated the extent to which everyday experiences could be used as a vehicle for changing the learning and teaching of secondary mathematics in Malawi. The study was collaborative, taking place over a period of five months in severely overcrowded and poorly resourced classes in two schools. It involved three mathematics teachers in a cycle of planning and teaching mathematics lessons based on the use of everyday experiences, and observation of and reflection on these lessons, in order to document the effects of using everyday experiences on student learning and teachers' teaching practices. The data was collected through student questionnaires; classroom observations and fieldnotes; interviews and reflective meetings with teachers; and informal meetings with key education officials in Malawi. Mathematics examination results from students involved in this study and a corresponding group from the previous year were collected. A reflective and critical approach was adopted in the interpretation and discussion of the data. Teachers' participation in this study resulted in heightened awareness of their teaching roles and the value of linking school mathematics with everyday experience. The study also shows that students found mathematics interesting and important to learn despite their lack of success in it. In addition, the study documented a number of constraints to change in mathematics instruction such as teachers' focus on mathematics content and examination requirements, and students' resistance to inquiry learning. It also recorded possibilities and barriers to collaboration both between teachers and researchers, and teachers themselves. The findings of this study are timely since they could serve to inform the reform of the Malawian secondary mathematics curriculum currently being undertaken, which began without a critical examination of the classroom conditions necessary to accommodate a socio-politically relevant mathematics education.

Subject cultures and pedagogy : comparing mathematics and science

This research found that a teacher is both a member of a culture and an individual, building practice within parameters set by a dynamic and multifaceted subject culture. Feelings of competence and confidence grow as an aesthetic understanding of what it means to know, teach, and appreciate a subject.

Codeship: Financing growth: Case study and Teaching note

A Work Project, presented as part of the requirements for the Award of a Masters Degree in Management from the NOVA – School of Business and Economics

Débattre sur une question en rapport avec les nanotechnologies et la société au lycée: pour une approche didactique

Les nanotechnologies sont devenues l’un des domaines de la recherche qui a connu une des plus fortes croissances au cours de ces dernières années. Partout dans le monde, des tentatives sont menées afin de proposer des scénarios didactiques d’enseignement des nanotechnologies dès l’école primaire. Compte tenu de l’avancée rapide des nanotechnologies et de leurs controverses de nombreuses questions vont pourtant émerger dans tous les domaines : technologiques, économiques, environnementaux, santé, éducation, éthique, morale et philosophique (Bensaude- Vincent, 2009). Il apparaît essentiel d’étudier les conditions d’enseignement des nanotechnologies auprès de lycéens en intégrant deux dimensions : l’une scientifique, l’autre sociale et éthique. Nos travaux se situent dans le courant de recherche en didactique des sciences qui prend en compte les interactions Sciences – Technologies - Société et plus particulièrement les SSI, (Socio Scientific Issues). Il s’agit d’étudier des dilemmes sociaux inhérents à certains champs scientifiques face aux avancées des sciences et technologies. Les sciences et les technologies sont des artéfacts et sont ainsi sujets à critiques parmi lesquelles les questions de pouvoir et d’inégalités potentielles doivent être étudiées. La mise en débat d’une question est envisagée comme une solution adaptée pour aborder les SSI (Sadler, 2004). Le débat argumenté dans le cadre de l’enseignement des sciences semble être un outil pédagogique adapté pour aborder avec les élèves les rapports entre recherche scientifiques et questions sociétales. Cependant, cette activité est complexe et difficile à mettre en oeuvre

Transition of understandings in science and SOSE : a case study

The newly developed Curriculum Standards Framework lacked supporting school documentation to implement an effective program in Science and SOSE. The task was to create it, together with the knowledge and understandings that were required to apply it. The thesis demonstrates the difficulties faced in actively pursuing curriculum change in a primary school.