The objective of this study is to facilitate progressive transitions in chemistry teachers understanding of nature of science in the context of historical controversies. Selected controversies referred to episodes that form part of the chemistry curriculum both at secondary and university freshman level. The study is based on 17 in-service…

This paper explores teachers' objectives when engaging their students in University outreach programme. Their perceptions of the short-term and long-term effects of outreach engagement on their students are explored. Seven out of twelve teachers interviewed (all from state schools) believed there were long term effects such as a rise in students…

Formative assessment, as a strategy used to improve student learning, encounters several obstacles in its implementation. This study explores changes in teachers' views and practices as they are introduced to formative assessment in a high stakes testing and limited resource environment. The study examines the extent to which teachers use the…

Pedagogical content knowledge (PCK) has been described as an assemblage of the most powerful analogies, demonstrations, examples and illustrations that make content knowledge understandable to students, together with an understanding of the preconceptions and alternate conceptions that students bring with them to the classroom (Shulman, 1986). In…

We present a programme for a novel introductory lower-secondary chemistry course (seventh or eighth grade) that aims at the application of theories of science education, and in particular of conceptual/meaningful learning and of teaching methodology that encourages active and inquiry forms of learning The approach is rigorous with careful use of…

Presented is a case study on the implementation of open and inquiry-type experimentation in early German secondary chemistry education. The teaching strategy discussed follows the learning company approach. Originally adopted from vocational education, the learning company method is used to redirect lab-oriented classroom practice towards a more…

We present a framework for analysing the interplay between context-based teaching material and teachers, and for evaluating the adequacy of the resulting implementation of context-based pedagogy in chemistry classroom practice. The development of the framework is described, including an account of its theoretical foundations. The framework needs…

Animations were prepared using Adobe Flash MX and tested on elementary (3rd-5th grade) and secondary chemistry students. A pre- and post-test study was used to compare the learning gains of students who received the animations with those who received textbook reading time and discussion in class. The control and experimental groups were further…

The purpose of this study is to examine students' usage styles of the Internet for seeking information and to investigate whether information obtained from the Internet is a source of misconceptions. For this reason, a two-stage study was conducted. At the first stage, a questionnaire was developed to get information about students' Internet usage…

This study involved the development of a two-tier diagnostic instrument to assess Thai high school students' understanding of acid-base chemistry. The acid-base diagnostic test (ABDT) comprising 18 items was administered to 55 Grade 11 students in a science and mathematics programme during the second semester of the 2008 academic year. Analysis of…

This study explores the relationship between different types of prior knowledge and student achievement in an introductory chemistry course. Student achievement was regarded as the pace of completing the course as well as the final grade. A model of prior knowledge is proposed; this distinguishes between different types of prior knowledge and…

This paper describes the development of different lesson plans dealing with authentic and controversial socio-scientific issues in the framework of climate change. These lesson plans orient themselves along the socio-critical, problem-oriented approach to science teaching. They deal with the use of bioethanol as an alternative fuel and with the…

A writing-across-the-curriculum and ethics component is presented for a second-semester, physical chemistry course. The activity involves introducing ethical issues pertinent to scientists. Students are asked to read additional material, participate in discussions, and write essays and a paper on an ethical issue. The writing and discussion…

The 20th century saw some of the most important technological and scientific discoveries in the history of humankind. The space shuttle, the internet, and other modern advances changed society forever, and yet many students cannot imagine what life was like before these technologies existed. In the project described here, students take a firsthand…

The National Science Education Standards suggest that students work as real scientists in the classroom (NRC 1996; 2000). To accomplish this task, the authors developed community-based inquiry lessons (CBILs) that provide students with the opportunity to solve problems as a class, based on the concept of whole-class inquiry (WCI) presented by…