In this June or First Issue of Volume 6, we are very delighted to have a foreword on "Promoting Science Teacher Ownership through STL Teaching" as contributed by Miia RANNIKMÄE (University of Tartu, ESTONIA). This article discusses and illustrates on how to give teacher ownership on science teaching through the effective teaching of scientific and technological literacy.

In the Academic Articles section, there are three articles on some well-known themes of science education - "conceptual change during instruction", "evaluation of interdisciplinary programs" and "children's conceptions of sinking a floating" as contributed by seven authors in Australia, Taiwan and Turkey. In the Genearl Articles section, there are four articles covering a quite diverse spectrum of science teaching and learning in Taiwan and Hong Kong. The themes of those four articles are centred around: conceptions about the phenomena of inertia, scientific investigation at junior secondary and primary level, and students' personal theories of evolution.

As an usual practice, the pdf version of articles in the Foreword, Academic Articles and General Articles sections are available for downloading in our Download section.

Finally, we would like to express our sincere thanks to the 13 external referees and all members of our Editorial Board who have carefully and critically reviewed those manuscripts considered for publication in this issue. Thanks are also due to all persons who have contributed articles in this issue and to all research assistants and colleagues in the HKIEd Science Department who offered their kind assistance in developing and promoting this online periodical. The Manhattan Press (H.K.) Ltd. of SNP Panpac (H.K.) Ltd. is again thanked for their kindness in offering additional sponsorship to support the continual publication of this online journal.